CN105847816A - Video file thumbnail creation method and electronic device - Google Patents
Video file thumbnail creation method and electronic device Download PDFInfo
- Publication number
- CN105847816A CN105847816A CN201610207743.5A CN201610207743A CN105847816A CN 105847816 A CN105847816 A CN 105847816A CN 201610207743 A CN201610207743 A CN 201610207743A CN 105847816 A CN105847816 A CN 105847816A
- Authority
- CN
- China
- Prior art keywords
- video
- pixel
- frame
- value
- image
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
- H04N19/182—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a pixel
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10016—Video; Image sequence
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Image Processing (AREA)
- Controls And Circuits For Display Device (AREA)
- Image Analysis (AREA)
Abstract
The invention discloses a video file thumbnail creation method and an electronic device. The method comprises steps the pixel information of a video frame of a video file is acquired; whether an image corresponding to the video frame is a single color image is determined according to the pixel information; if not, the image corresponding to the video frame is acquired for generating a thumbnail of the video frame. Through the method, the generated thumbnail can more accurately present the video content.
Description
Technical field
The present invention relates to creation method and the electronic installation of a kind of video file thumbnail.
Background technology
In order to make user to facilitate and understand video information quickly, existing client and various
Apply when showing list of videos, the most all video can be carried out sectional drawing to produce the thumbnail of video
The approximate contents of video is understood in advance for user.
Existing way is typically the first two field picture intercepting video thumbnail as video.But,
Owing to existing video production instrument provides the effect of fading in that video comes out gradually mostly, therefore according to video
The first frame truncated picture be easy to pure background colour (generally ater) occurs, thus
The thumbnail obtained cannot show video content exactly.
Summary of the invention
The technical problem that present invention mainly solves is to provide the establishment side of a kind of video file thumbnail
Method and electronic installation so that the thumbnail generated can represent video content more accurately.
For solving above-mentioned technical problem, the technical scheme that the present invention uses is: provide one to regard
The creation method of frequency file thumbnail, including: obtain the picture of one of them frame of video of video file
Prime information；Judge whether image corresponding to described frame of video is solid color according to described Pixel Information
Image；If it is not, then obtain image corresponding to described frame of video to generate the contracting of described video file
Sketch map.
Wherein, the step bag of the Pixel Information of one of them frame of video of described acquisition video file
Include: obtain the color value of each pixel of described frame of video, to obtain described Pixel Information；Described
Judge whether image corresponding to described frame of video is solid color image according to described Pixel Information
Step includes: calculate the absolute value that selected pixel is adjacent the difference of pixel color value；Work as detection
When the absolute value of the difference being adjacent pixel color value to selected pixel is respectively less than first threshold, make
Assessed value adds 1；When described assessed value is less than Second Threshold, then judge that described frame of video is corresponding
Image is not solid color image.
Wherein, the step bag of the Pixel Information of one of them frame of video of described acquisition video file
Include: obtain the transparence value of each pixel of described frame of video, to obtain described Pixel Information；Institute
State and judge whether image corresponding to described frame of video is solid color image according to described Pixel Information
Step include: calculate the absolute value that selected pixel is adjacent the difference of pixel transparent angle value；When
Detect that selected pixel is adjacent the absolute value of the difference of pixel transparent angle value less than the 3rd threshold value
Time, make assessed value add 1；When described assessed value is less than four threshold values, then judge described frame of video
Corresponding image is not solid color image.
Wherein, the step bag of the Pixel Information of one of them frame of video of described acquisition video file
Include: start to obtain at equal intervals selected pixel and the picture of neighbor thereof described frame of video from reference point
Prime information.
Wherein, the step bag of the Pixel Information of one of them frame of video of described acquisition video file
Include: the Pixel Information of random one of them frame of video obtaining video file.
Wherein, the step bag of the Pixel Information of one of them frame of video of described acquisition video file
Include: from the beginning of first frame of video of described video file, obtain first of described video file
The Pixel Information of frame of video, and when judging that described first frame of video is according to described Pixel Information
During solid color image, obtain the Pixel Information of next frame of video.
For solving above-mentioned technical problem, another technical solution used in the present invention is: provide one
Create the electronic installation of video file thumbnail, including: acquisition module, it is used for obtaining video file
The Pixel Information of one of them frame of video；Judge module, for judging according to described Pixel Information
Whether image corresponding to described frame of video is solid color image；Generation module, for when judging mould
Block judges, when image corresponding to described frame of video is not solid color image, to obtain described frame of video pair
The image answered is to generate the thumbnail of described video file.
Wherein, described acquisition module is used for obtaining the color value of each pixel of described frame of video, with
Obtain described Pixel Information；Described judge module includes: the first computing unit, is used for calculating selected
Pixel is adjacent the absolute value of the difference of pixel color value；First accumulated unit, for when detection
When the absolute value of the difference being adjacent pixel color value to selected pixel is respectively less than first threshold, make
Assessed value adds 1；First judging unit, for when described assessed value is less than Second Threshold, it is judged that
Image corresponding to described frame of video is not solid color image.
Wherein, described acquisition module is used for obtaining the transparence value of each pixel of described frame of video,
To obtain described Pixel Information；Described judge module includes: the second computing unit, is used for calculating choosing
Fixation element is adjacent the absolute value of the difference of pixel transparent angle value；Second accumulated unit, for working as
Detect that selected pixel is adjacent the absolute value of the difference of pixel transparent angle value less than the 3rd threshold value
Time, make assessed value add 1；Second judging unit, is used for when described assessed value is less than four threshold values,
Judge that image corresponding to described frame of video is not solid color image.
Wherein, described acquisition module selects for starting to obtain at equal intervals described frame of video from reference point
Fixation element and the Pixel Information of neighbor thereof.
Wherein, described acquisition module is for the picture of random one of them frame of video obtaining video file
Prime information.
Wherein, described acquisition module, for from the beginning of first frame of video of described video file, obtains
Take the Pixel Information of first frame of video of described video file, and when described judge module according to
Described Pixel Information judges, when described first frame of video is solid color image, to be used for obtaining next
The Pixel Information of individual frame of video.
The invention has the beneficial effects as follows: be different from the situation of prior art, the present invention is regarded by judgement
Whether the image that frame is corresponding frequently is solid color image, when judgement is not solid color image, says
Image corresponding to this frame of video bright is not solid-color image, and the probability with video content is bigger, because of
Corresponding for this frame of video image is generated the thumbnail of video file by this, thus can improve to have and regards
Frequently the probability of the thumbnail of content, so that the thumbnail generated can more accurately show video
Content.
Accompanying drawing explanation
Fig. 1 is the flow chart of creation method one embodiment of video file thumbnail of the present invention；
Fig. 2 is in creation method one embodiment of video file thumbnail of the present invention, believes according to pixel
Breath judges that whether image corresponding to frame of video be the flow chart of solid color image；
Fig. 3 is in creation method one embodiment of video file thumbnail of the present invention, and frame of video is corresponding
The dot structure schematic diagram of image；
Fig. 4 is in the another embodiment of creation method of video file thumbnail of the present invention, according to pixel
Information judges that whether image corresponding to frame of video be the flow chart of solid color image；
Fig. 5 is that the structure of electronic installation one embodiment that the present invention creates video file thumbnail is shown
It is intended to；
Fig. 6 is the structure that the present invention creates another embodiment of electronic installation of video file thumbnail
Schematic diagram；
Fig. 7 is the structure that the present invention creates the another embodiment of electronic installation of video file thumbnail
Schematic diagram.
Detailed description of the invention
Below in conjunction with drawings and embodiments, the present invention is described in detail.
Refering to Fig. 1, in creation method one embodiment of video file thumbnail of the present invention, including
Step:
Step S101: obtain the Pixel Information of one of them frame of video of video file.
Wherein, in the present embodiment, from the beginning of the first of video file frame of video, the is obtained
The Pixel Information of one frame of video.
Wherein, Pixel Information can include monochrome information, colouring information, high-frequency information and/or transparent
Angle value etc..
Step S102: judge whether image corresponding to frame of video is solid color figure according to Pixel Information
Picture.
Solid color image refers to the image of same type color, including the image and gradually of same color
Become the image of color.Same color image e.g. all black picture, full white image, complete red image etc.,
Graduated colors image e.g. from dark red gradual change to ruddy image.Solid color image is due to often
The color that individual pixel presents is identical or approximately, the therefore picture of each pixel of solid color image
Prime information is closer to, and therefore judges whether image corresponding to frame of video is single according to Pixel Information
One color image.
Step S103: if it is not, then obtain image corresponding to frame of video to generate the contracting of video file
Sketch map.
Unlike solid color image, the image with video content is generally of multiple face
Color, such as when video content is personage's head portrait, each position such as the hair of personage, clothes, skin
Color distortion the biggest, be not therefore solid color image when the image that the frame of video obtained is corresponding
Time, illustrate that this frame of video presents the probability of video content relatively greatly, therefore that this frame of video is corresponding
Image generate the thumbnail of video file, thus can improve the thumbnail with video content
Probability, so that the thumbnail generated can more accurately show video content.Therefore at electronics
This thumbnail can be used as video file when showing video file on equipment such as mobile phone, computer
Path indexing show.
Further, when judging that image corresponding to first frame of video obtained is solid color image
Time, then obtain the Pixel Information of second frame of video to judge second according to the Pixel Information obtained
Whether image corresponding to frame of video is solid color image, by that analogy, according to the broadcasting of frame of video
Order is till finding non-solid color image.
Above-mentioned embodiment is from the beginning of the first of video file frame of video, first obtains first
The Pixel Information of frame of video judges, in other embodiments of the present invention, it is also possible to be with
The Pixel Information of one of them frame of video that machine obtains video file judges, now when judging this
When image corresponding to the frame of video of secondary random acquisition is solid color image, obtain another the most at random
Whether the Pixel Information of frame of video is single face with the image that judgement another frame of video described is corresponding
Color image, by that analogy, till finding non-solid color image.
Refering to Fig. 2, in the embodiment of the invention, obtain one of them of video file
The step of the Pixel Information of frame of video includes: obtain the color value of each pixel of frame of video, to obtain
Pixel information.
Described color value refers to the grey decision-making of pixel.Multiple pixels that image is arranged by ranks are formed,
Each pixel includes R (red), G (green), three primary color sub-pixels of B (blue), each primary colours
Sub-pixel has a color value, this color value can between 0～255 value, including endpoint value.
Wherein, in present embodiment, the color value of each pixel refers to the RGB tri-by each pixel
One color value of the respective pixel that the color value conversion of individual primary color sub-pixels obtains.Due to above-mentioned face
The conversion of colour belongs to the category of prior art, and the emphasis place of non-invention, thus the most superfluous
State.
Wherein, judge whether image corresponding to frame of video is solid color image bag according to Pixel Information
Include following sub-step:
Sub-step S201: calculate the absolute value that selected pixel is adjacent the difference of pixel color value.
Wherein, each pixel during selected pixel is every one-row pixels.In conjunction with Fig. 3, it is assumed that obtained
Image corresponding to the frame of video that takes includes 6x4 pixel, then selecting pixel is the first row pixel
P11～P16, the second row pixel P21～P26..., the 6th row pixel P61～P66.With selected the third line
Pixel P31～P36In pixel P33As a example by, with pixel P33Adjacent pixel has P32、P34、P43、
P23, it is as follows with the calculating process of the absolute value of the difference of the color value of neighbor:
A1=| GP33-GP32|
A2=| GP33-GP34|
A3=| GP33-GP43|
A4=| GP33-GP23|
Wherein, GP33、GP32、GP34、GP43、GP23It is respectively pixel P33And adjacent four pictures
Element P32、P34、P43、P23Color value, A1～A4It is respectively pixel P33And adjacent four pictures
Element P32、P34、P43、P23The absolute value of difference of color value.
Other pixels are adjacent the absolute value of difference of color value of pixel by that analogy, at this not
Do and repeat one by one.
The absolute value of the difference that selected pixel is adjacent the color value of pixel is the least, and selected picture is described
The difference that element is adjacent the color shown by pixel is the least, more levels off to same color.Otherwise,
Then color distortion is the biggest.Such as, A is worked as1When=0, pixels illustrated P33With pixel P32Shown
Color is identical, works as A1When=2, pixels illustrated P33With pixel P32Shown color is closer to,
Slightly difference.The absolute value of the difference being adjacent pixel color value when all selected pixels is 0
Time, the color major part all phases shown by each pixel of image corresponding to frame of video obtained are described
With, the probability for solid-color image is the biggest.When all selected pixels are adjacent pixel color value
The absolute value of difference such as in the range of 3～8, image corresponding to frame of video illustrating to obtain each
Color shown by pixel is closer to, it may be possible to the image of graduated colors.
Sub-step S202: when detecting that selected pixel is adjacent the absolute of the difference of pixel color value
When value is respectively less than first threshold, assessed value is made to add 1.
Wherein, first threshold can be such as 3,5 or 8 etc..
Wherein, as a example by first threshold is 8, it is assumed that A1=0, A2=2, A3=5, A4=7, because of
This pixel P33And adjacent four pixels P32、P34、P43、P23Difference absolute of color value
Value is respectively less than first threshold, now thinks in pixel P33Near the color that presented relatively,
May be such as only red, light red difference, therefore, it is determined that be pixel P33The color phase of neighbouring display
With, therefore make assessed value add 1.
Wherein, due to the color slightly difference of pixel each in the image of graduated colors, in order to reduce by
First threshold, as the probability of video thumbnails, can be set to bigger by the image of graduated colors
Value, such as, could be arranged to 10,15 or 30 etc..
Sub-step S203: when assessed value is less than Second Threshold, then judge the image that frame of video is corresponding
It it not solid color image.
Wherein, assessed value is the biggest, illustrates that the same or like pixel of color is the most, and image is single
The probability of color image (solid-color image or graduated colors image) is the biggest, otherwise explanation color is identical
Or close pixel is the fewest, image is that the probability of non-solid color image is the fewest.Wherein Second Threshold
Can be set according to the pixel total amount of the image of frame of video.When pixel total amount it is such as
During 800x600, pixel is 800 at once, and row pixel is 600, is still every with selected pixel
As a example by each pixel in one-row pixels, then select pixel and be adjacent the difference of pixel color value
Whether absolute value is respectively less than the detection number of times of first threshold is 800 times, now can arrange the second threshold
Value is 600.When assessed value is less than Second Threshold, assessed value is less, illustrates that color is identical or phase
The negligible amounts of near pixel, now judges that image corresponding to frame of video is not solid color image,
When assessed value is more than or equal to Second Threshold, assessed value machine is relatively big, illustrates that color is same or like
The quantity of pixel more, now judge that image corresponding to frame of video is solid color image.
By the way, can be compared with accurately judging that image corresponding to frame of video is pure background colour
Image, thus reduce the probability using pure background colour as the thumbnail of video file.
Certainly, in other embodiments of the present invention, the color value of each pixel may also mean that often
The color value of tri-primary color sub-pixels of RGB included by individual pixel.Now calculate selected pixel and
The absolute value of the difference of its neighbor color value includes: calculate selected pixel and neighbor thereof
The absolute value of the difference of corresponding primary color sub-pixels color value.More specifically, selected pixel is calculated
R sub-pixel respectively with the absolute value of the difference of the color value of the R sub-pixel of described neighbor, with
And calculate the G sub-pixel of selected pixel respectively with the color value of the G sub-pixel of described neighbor
The absolute value of difference, and calculate the B sub-pixel of selected pixel respectively with the B of described neighbor
The absolute value of the difference of the color value of sub-pixel.Wherein, when detecting that selected pixel is adjacent picture
When the absolute value of the difference of the color value of each primary color sub-pixels of element is respectively less than first threshold, make assessment
Value adds 1, i.e. the absolute value of the difference of the color value of the corresponding primary color sub-pixels between pixel is the least
In first threshold, and the color value of selected pixel and the corresponding primary color sub-pixels of all neighbors
The absolute value of difference when being respectively less than first threshold, make assessed value add 1.
Refering to Fig. 4, in still another embodiment of the present invention, obtain wherein the one of video file
The step of the Pixel Information of individual frame of video includes: obtain the transparency of each pixel of frame of video
(Alpha) value, to obtain Pixel Information.
Each pixel, in addition to having color value, also has a transparence value, in order to represent pixel
Transparency or opacity.Wherein, transparence value can between 0～255 value, including end
Point value, transparence value is that 0 expression is transparent, and transparence value is that 255 expressions are opaque.
Wherein, judge whether image corresponding to frame of video is solid color image according to Pixel Information
Principle is similar with Fig. 2 illustrated embodiment, specifically includes following sub-step:
Sub-step S401: the selected pixel of calculating is adjacent the absolute of the difference of pixel transparent angle value
Value.
Wherein, each pixel during selected pixel is every a line.In conjunction with Fig. 3, still with selected the
Three row pixels P31～P36In pixel P33As a example by, the difference of its transparence value with neighbor
The calculating process of absolute value is as follows:
B1=| AP33-AP32|
B2=| AP33-AP34|
B3=| BP33-BP43|
B4=| BP33-BP23|
Wherein, AP33、AP32、AP34、AP43、AP23It is respectively pixel P33And adjacent four pictures
Element P32、P34、P43、P23Transparence value, B1～B4It is respectively pixel P33And adjacent four
Pixel P32、P34、P43、P23The absolute value of difference of transparence value.
Other pixels are adjacent the absolute value of difference of transparence value of pixel by that analogy, at this
Do not do and repeat one by one.
The absolute value of the difference that selected pixel is adjacent the transparence value of pixel is the least, illustrates selected
The difference that pixel is adjacent the color shown by pixel is the least, more levels off to same color.Instead
It, then color distortion is the biggest.
Sub-step S402: when detecting that selected pixel is adjacent the exhausted of the difference of pixel transparent angle value
During to value less than three threshold values, assessed value is made to add 1.
Wherein, the 3rd threshold value can be such as 5,8 or 10 etc..
Sub-step S403: when assessed value is less than four threshold values, then judge the image that frame of video is corresponding
It it not solid color image.
Wherein, assessed value is the biggest, illustrates that the same or like pixel of color is the most, and image is single
The probability of color image is the biggest, otherwise the explanation same or like pixel of color is the fewest, and image is non-
The probability of solid color image is the fewest.
Wherein the 4th threshold value can be set according to the pixel total amount of the image of frame of video, with second
The setting principle of threshold value is similar, does not repeats this.
When assessed value is less than four threshold values, assessed value is less, and the picture that color is same or like is described
The negligible amounts of element, now judges that image corresponding to frame of video is not solid color image, works as assessment
When value is more than or equal to four threshold values, assessed value machine is relatively big, and the pixel that color is same or like is described
Quantity more, now judge that image corresponding to frame of video is solid color image.
In the above-described embodiment, each pixel during selected pixel is every one-row pixels.At this
In bright another embodiment, selected pixels can be spaced, wherein obtain video file one of them
The step of the Pixel Information of frame of video includes: start to obtain at equal intervals frame of video selected from reference point
Pixel and the Pixel Information of neighbor thereof.
Such as, when the color value that Pixel Information is pixel, start to obtain at equal intervals to regard from reference point
Selected pixel and the color value of neighbor thereof in frequency file.As a example by the dot structure shown in Fig. 3,
With the first row pixel as reference point, then obtain at interval of one-row pixels in one-row pixels each pixel and
The color value of its neighbor, more specifically, every in the first row, the third line, fifth line pixel
Individual pixel is selected pixel, thus obtain is in the first row, the third line and fifth line pixel
Each pixel and the color value of neighbor thereof, be the most only to calculate the first row, the third line and the
Each pixel in five elements' pixel is adjacent the absolute value of the difference of the color value of pixel.
Certainly, in other embodiments, reference point can also be first in every one-row pixels
Pixel, starts with first pixel in every one-row pixels, at interval of a predetermined pixel (can be such as
Be spaced 3 or 5 etc.) then choose a pixel for selected pixel, thus obtain selected pixel with
The Pixel Information of its neighbor, and then judge whether image corresponding to frame of video is solid color figure
Picture.
Refering to Fig. 5, in the present invention creates electronic installation one embodiment of video file thumbnail,
Electronic installation includes acquisition module 51, judge module 52 and generation module 53.
Wherein, acquisition module 51 is for obtaining the pixel letter of one of them frame of video of video file
Breath.In present embodiment, acquisition module 51, from the beginning of the first of video file frame of video, obtains
Take the Pixel Information of first frame of video.
Wherein, Pixel Information can include monochrome information, colouring information, high-frequency information and/or transparent
Angle value etc..
According to Pixel Information, judge module 52 is for judging whether image corresponding to frame of video is single
Color image.
Solid color image refers to the image of same type color, the image of described same type color
Refer to that the color distortion of the entire picture of image is less, it image including same color and gradual change face
The image of color.Same color image e.g. all black picture, full white image, complete red image etc., gradually
Become color image e.g. from dark red gradual change to ruddy image.Solid color image is due to each
The color that pixel presents is identical or approximately, the therefore pixel of each pixel of solid color image
Information is closer to, and therefore judges whether image corresponding to frame of video is single according to Pixel Information
Color image.
When judge module 52, generation module 53 is for judging that image corresponding to frame of video is not single face
During color image, obtain image corresponding to frame of video to generate the thumbnail of video file.
Unlike solid color image, the image with video content is generally of multiple face
Color, such as when video content is personage's head portrait, each position such as the hair of personage, clothes, skin
Color distortion the biggest, be not therefore solid color image when the image that the frame of video obtained is corresponding
Time, illustrate that this frame of video presents the probability of video content relatively greatly, therefore that this frame of video is corresponding
Image generate the thumbnail of video file, thus can improve the thumbnail with video content
Probability, so that the thumbnail generated can more accurately show video content.Therefore at electronics
This thumbnail can be used as video file when showing video file on equipment such as mobile phone, computer
Path indexing show.
Further, judge that image corresponding to frame of video is solid color image when judge module 52
Time, then acquisition module 51 obtains the Pixel Information of second frame of video to carry out judging that second regards
Whether the image that frame is corresponding frequently is solid color image, until finding non-solid color image.
Above-mentioned embodiment is from the beginning of the first of video file frame of video, first obtains first
The Pixel Information of frame of video judges, in other embodiments of the present invention, and acquisition module 51
Can also be that the Pixel Information of one of them frame of video obtaining video file at random judges, this
Time judge that image corresponding to this frame of video obtained at random is solid color figure when judge module 52
During picture, then acquisition module 51 obtains the Pixel Information of another frame of video at random to judge,
By that analogy, till finding non-solid color image.
Refering to Fig. 6, in electronic installation one detailed description of the invention of the present invention, Pixel Information is pixel
Color value.Wherein, acquisition module 51 is specifically for obtaining the color of each pixel of frame of video
Value, to obtain Pixel Information.
Wherein, in present embodiment, the color value of each pixel refers to the RGB by each pixel
One color value of the respective pixel that the color value conversion of three primary color sub-pixels obtains.
Wherein judge module 52 includes first computing unit the 61, first accumulated unit 62 and first
Judging unit 63.
First computing unit 61 is adjacent the difference of pixel color value for calculating selected pixel
Absolute value.The absolute value of the difference that selected pixel is adjacent the color value of pixel is the least, and choosing is described
The difference that fixation element is adjacent the color shown by pixel is the least, more levels off to same color.
Otherwise, then color distortion is the biggest.
First accumulated unit 62 is for when detecting that selected pixel is adjacent the difference of pixel color value
When the absolute value of value is respectively less than first threshold, assessed value is made to add 1.Wherein, first threshold such as may be used
Being 3,5 or 8 etc..
First judging unit 63 is for when assessed value is less than Second Threshold, it is judged that video is the most corresponding
Image be not solid color image.Wherein, assessed value is the biggest, illustrates that color is same or like
Pixel is the most, and image is that the probability of solid color image is the biggest, otherwise explanation color is same or like
Pixel the fewest, image is that the probability of non-solid color image is the fewest.Wherein Second Threshold can root
It is set according to the pixel total amount of the image of frame of video.When assessed value is less than Second Threshold, assessment
It is worth less, the negligible amounts of the same or like pixel of color is described, now judge that frame of video is corresponding
Image be not solid color image, when assessed value more than or equal to Second Threshold time, assessed value machine
Relatively big, illustrate that the quantity of the same or like pixel of color is more, now judge that frame of video is corresponding
Image is solid color image.
By the way, can be compared with accurately judging that image corresponding to frame of video is pure background colour
Image, thus reduce the probability using pure background colour as the thumbnail of video file.
Certainly, in other embodiments of the present invention, the color value of each pixel may also mean that often
The color value of tri-primary color sub-pixels of RGB included by individual pixel.
Refering to Fig. 7, in the another embodiment of electronic installation of the present invention, acquisition module 51 is specifically used
In transparency (Alpha) value of each pixel obtaining frame of video, to obtain Pixel Information.
Wherein, it is judged that module 52 includes second computing unit the 71, second accumulated unit 72 and
Two judging units 73.
Second computing unit 71 is for calculating the difference that selected pixel is adjacent the transparence value of pixel
The absolute value of value.The absolute value of the difference that selected pixel is adjacent the transparence value of pixel is the least,
Illustrate that selected pixel is adjacent the difference of the color shown by pixel the least, more level off to same
Color.Otherwise, then color distortion is the biggest.
Second accumulated unit 72 is for when detecting that selected pixel is adjacent pixel transparent angle value
When the absolute value of difference is less than three threshold values, assessed value is made to add 1.Wherein, the 3rd threshold value such as may be used
Being 5,8 or 10 etc..
Second judging unit 73 is for when assessed value is less than four threshold values, it is judged that frame of video is corresponding
Image be not solid color image.Wherein, assessed value is the biggest, illustrates that color is same or like
Pixel is the most, and image is that the probability of solid color image is the biggest, otherwise explanation color is same or like
Pixel the fewest, image is that the probability of non-solid color image is the fewest.Wherein the 4th threshold value can root
It is set according to the pixel total amount of the image of frame of video.
In the another embodiment of electronic installation of the present invention, acquisition module 51 is for opening from reference point
Begin to obtain at equal intervals selected pixel and the Pixel Information of neighbor thereof in frame of video.
Such as, when the color value that Pixel Information is pixel, acquisition module 51 is from the beginning of reference point
Obtain selected pixel and the color value of neighbor thereof in video file at equal intervals.Shown in Fig. 3
As a example by dot structure, with the first row pixel as reference point, then obtain a line picture at interval of one-row pixels
Each pixel and the color value of neighbor thereof in element, more specifically, the first row, the third line,
Each pixel in five elements' pixel is selected pixel, thus obtain be the first row, the third line and
Each pixel in fifth line pixel and the color value of neighbor thereof, be the most only calculating first
Each pixel in row, the third line and fifth line pixel is adjacent the difference of the color value of pixel
Absolute value.
Certainly, in other embodiments, reference point can also be first in every one-row pixels
Pixel, starts with first pixel in every one-row pixels, at interval of a predetermined pixel (can be such as
Be spaced 3 or 5 etc.) then choose a pixel for selected pixel, thus obtain selected pixel with
The Pixel Information of its neighbor, and then judge whether image corresponding to frame of video is solid color figure
Picture.
The foregoing is only embodiments of the present invention, not thereby limit the patent model of the present invention
Enclosing, every equivalent structure utilizing description of the invention and accompanying drawing content to be made or equivalence flow process become
Change, or be directly or indirectly used in other relevant technical fields, be the most in like manner included in the present invention's
In scope of patent protection.
Claims (12)
1. the creation method of a video file thumbnail, it is characterised in that including:
Obtain the Pixel Information of one of them frame of video of video file；
Judge whether image corresponding to described frame of video is solid color figure according to described Pixel Information
Picture；
If it is not, then obtain image corresponding to described frame of video to generate the breviary of described video file
Figure.
Method the most according to claim 1, it is characterised in that described acquisition video file
The step of the Pixel Information of one of them frame of video includes: obtain each pixel of described frame of video
Color value, to obtain described Pixel Information；
Described judge whether image corresponding to described frame of video is single face according to described Pixel Information
The step of color image includes:
Calculate the absolute value that selected pixel is adjacent the difference of pixel color value；
When absolute value difference that selected pixel is adjacent pixel color value being detected is respectively less than
During one threshold value, assessed value is made to add 1；
When described assessed value is less than Second Threshold, then judge that image corresponding to described frame of video is not
Solid color image.
Method the most according to claim 1, it is characterised in that described acquisition video file
The step of the Pixel Information of one of them frame of video includes: obtain each pixel of described frame of video
Transparence value, to obtain described Pixel Information；
Described judge whether image corresponding to described frame of video is single face according to described Pixel Information
The step of color image includes:
Calculate the absolute value that selected pixel is adjacent the difference of pixel transparent angle value；
When detecting that selected pixel is adjacent the absolute value of the difference of pixel transparent angle value less than the
During three threshold values, assessed value is made to add 1；
When described assessed value is less than four threshold values, then judge that image corresponding to described frame of video is not
Solid color image.
Method the most according to claim 1, it is characterised in that described acquisition video file
The step of the Pixel Information of one of them frame of video includes: start to obtain at equal intervals described from reference point
Selected pixel and the Pixel Information of neighbor thereof in frame of video.
Method the most according to claim 1, it is characterised in that described acquisition video file
The step of the Pixel Information of one of them frame of video includes: one of them of random acquisition video file
The Pixel Information of frame of video.
Method the most according to claim 1, it is characterised in that described acquisition video file
The step of the Pixel Information of one of them frame of video includes: from first video of described video file
Frame starts, and obtains the Pixel Information of first frame of video of described video file, and when according to institute
State Pixel Information and judge when described first frame of video is solid color image, obtain next video
The Pixel Information of frame.
7. the electronic installation creating video file thumbnail, it is characterised in that including:
Acquisition module, for obtaining the Pixel Information of one of them frame of video of video file；
Whether judge module, for judging image corresponding to described frame of video according to described Pixel Information
For solid color image；
When judge module, generation module, for judging that image corresponding to described frame of video is not single face
During color image, obtain image corresponding to described frame of video to generate the thumbnail of described video file.
Electronic installation the most according to claim 7, it is characterised in that described acquisition module is used
In the color value of each pixel obtaining described frame of video, to obtain described Pixel Information；
Described judge module includes:
First computing unit, is adjacent difference exhausted of pixel color value for calculating selected pixel
To value；
First accumulated unit, for when detecting that selected pixel is adjacent the difference of pixel color value
Absolute value when being respectively less than first threshold, make assessed value add 1；
First judging unit, for when described assessed value is less than Second Threshold, it is judged that described video
The image that frame is corresponding is not solid color image.
Electronic installation the most according to claim 7, it is characterised in that described acquisition module is used
In the transparence value of each pixel obtaining described frame of video, to obtain described Pixel Information；
Described judge module includes:
Second computing unit, is adjacent the difference of pixel transparent angle value for calculating selected pixel
Absolute value；
Second accumulated unit, for when detecting that selected pixel is adjacent the difference of pixel transparent angle value
When the absolute value of value is less than three threshold values, assessed value is made to add 1；
Second judging unit, for when described assessed value is less than four threshold values, it is judged that described video
The image that frame is corresponding is not solid color image.
Electronic installation the most according to claim 7, it is characterised in that described acquisition module is used
In starting to obtain at equal intervals selected pixel and the picture of neighbor thereof in described frame of video from reference point
Prime information.
11. electronic installations according to claim 7, it is characterised in that described acquisition module is used
Pixel Information in random one of them frame of video obtaining video file.
12. electronic installations according to claim 7, it is characterised in that described acquisition module is used
In from the beginning of first frame of video of described video file, obtain first of described video file and regard
Frequently the Pixel Information of frame, and when described judge module judges described first according to described Pixel Information
When individual frame of video is solid color image, for obtaining the Pixel Information of next frame of video.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610207743.5A CN105847816B (en) | 2016-04-01 | 2016-04-01 | The creation method and electronic device of video file thumbnail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610207743.5A CN105847816B (en) | 2016-04-01 | 2016-04-01 | The creation method and electronic device of video file thumbnail |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105847816A true CN105847816A (en) | 2016-08-10 |
| CN105847816B CN105847816B (en) | 2019-07-12 |
Family
ID=56597554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610207743.5A Active CN105847816B (en) | 2016-04-01 | 2016-04-01 | The creation method and electronic device of video file thumbnail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105847816B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112668546A (en) * | 2021-01-13 | 2021-04-16 | 海信视像科技股份有限公司 | Video thumbnail display method and display equipment |
| CN113438475A (en) * | 2021-06-17 | 2021-09-24 | 青岛海信传媒网络技术有限公司 | Thumbnail inspection method and display device |
| CN113453069A (en) * | 2021-06-18 | 2021-09-28 | 海信视像科技股份有限公司 | Display device and thumbnail generation method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070150484A1 (en) * | 2005-12-23 | 2007-06-28 | Funge John L | Systems and methods for multi-media transfer |
| CN1327704C (en) * | 2003-09-10 | 2007-07-18 | 松下电器产业株式会社 | Image display method, image display program, and image display apparatus |
| CN104506968A (en) * | 2014-12-31 | 2015-04-08 | 北京奇艺世纪科技有限公司 | Method and device for determining video abstract figure |
-
2016
- 2016-04-01 CN CN201610207743.5A patent/CN105847816B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1327704C (en) * | 2003-09-10 | 2007-07-18 | 松下电器产业株式会社 | Image display method, image display program, and image display apparatus |
| US20070150484A1 (en) * | 2005-12-23 | 2007-06-28 | Funge John L | Systems and methods for multi-media transfer |
| CN104506968A (en) * | 2014-12-31 | 2015-04-08 | 北京奇艺世纪科技有限公司 | Method and device for determining video abstract figure |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112668546A (en) * | 2021-01-13 | 2021-04-16 | 海信视像科技股份有限公司 | Video thumbnail display method and display equipment |
| CN113438475A (en) * | 2021-06-17 | 2021-09-24 | 青岛海信传媒网络技术有限公司 | Thumbnail inspection method and display device |
| CN113453069A (en) * | 2021-06-18 | 2021-09-28 | 海信视像科技股份有限公司 | Display device and thumbnail generation method |
| CN113453069B (en) * | 2021-06-18 | 2022-11-11 | 海信视像科技股份有限公司 | Display device and thumbnail generation method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105847816B (en) | 2019-07-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105096829B (en) | Eliminate method, device and the display of ghost | |
| US9886884B2 (en) | Pixel arranging method, pixel rendering method and image display device | |
| EP1424675A2 (en) | Display apparatus, method and program with selective image smoothing based on subpixel colour values | |
| JP6347958B2 (en) | Data processing apparatus and display system having the same | |
| CN107799084A (en) | Device and method, the memory of luminance compensation | |
| CN102479482B (en) | Image display device and method of driving the same | |
| CN106412549B (en) | Brightness of image method of adjustment and device | |
| CN104167193B (en) | Signal conversion method for display image | |
| EP3300060B1 (en) | Image display method and display device | |
| CN108053797A (en) | Driving method and driving device of display device | |
| CN105847816A (en) | Video file thumbnail creation method and electronic device | |
| WO2022205915A1 (en) | Video processing method, video processing device, and display device | |
| KR100772906B1 (en) | Image signal display method and device | |
| US9602800B2 (en) | Image processing method | |
| CN104394391B (en) | The image processing method of the dot matrix image of collected by camera and system | |
| CN106898291A (en) | The driving method and drive device of display panel | |
| CN110321907B (en) | Determination method of data processing sequence, display device and display method thereof | |
| CN105430237B (en) | A kind of processing method and system of frame missing image | |
| CN108154848A (en) | Display methods, device and the display equipment of pixel arrangement | |
| KR102410629B1 (en) | Data processing device and display device having the same | |
| US20140139543A1 (en) | Image processing device, image processing method, and image display apparatus | |
| JP2014235676A (en) | Two-dimensional color code display device and display method for the same, and two-dimensional color code reading device and reading method for the same | |
| CN114093312B (en) | Display data generation method and device based on virtual pixels | |
| CN104916247A (en) | Strip-shaped screen driving method, strip-shaped screen driving device and display equipment | |
| CN106303496B (en) | Picture format determines method and device, display equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210115 Address after: 511442 3108, 79 Wanbo 2nd Road, Nancun Town, Panyu District, Guangzhou City, Guangdong Province Patentee after: GUANGZHOU CUBESILI INFORMATION TECHNOLOGY Co.,Ltd. Address before: 511449 B-1 Building, Wanda Commercial Square North District, Wanbo Business District, 79 Wanbo Second Road, Nancun Town, Panyu District, Guangzhou City, Guangdong Province Patentee before: GUANGZHOU HUADUO NETWORK TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20160810 Assignee: GUANGZHOU HUADUO NETWORK TECHNOLOGY Co.,Ltd. Assignor: GUANGZHOU CUBESILI INFORMATION TECHNOLOGY Co.,Ltd. Contract record no.: X2021440000053 Denomination of invention: Video file thumbnail creation method and electronic device Granted publication date: 20190712 License type: Common License Record date: 20210208 |
|
| EE01 | Entry into force of recordation of patent licensing contract |