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GB2312124B - Processing image data - Google Patents

Processing image data

Info

Publication number
GB2312124B
GB2312124B GB9705871A GB9705871A GB2312124B GB 2312124 B GB2312124 B GB 2312124B GB 9705871 A GB9705871 A GB 9705871A GB 9705871 A GB9705871 A GB 9705871A GB 2312124 B GB2312124 B GB 2312124B
Authority
GB
United Kingdom
Prior art keywords
image
film
colour
grain
images
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.)
Expired - Fee Related
Application number
GB9705871A
Other versions
GB2312124A (en
GB9705871D0 (en
Inventor
Benoit Sevigny
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Discreet Logic Inc
Original Assignee
Discreet Logic Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from GBGB9607633.6A external-priority patent/GB9607633D0/en
Application filed by Discreet Logic Inc filed Critical Discreet Logic Inc
Priority to GB9705871A priority Critical patent/GB2312124B/en
Publication of GB9705871D0 publication Critical patent/GB9705871D0/en
Publication of GB2312124A publication Critical patent/GB2312124A/en
Application granted granted Critical
Publication of GB2312124B publication Critical patent/GB2312124B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/222—Studio circuitry; Studio devices; Studio equipment
    • H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/70—Denoising; Smoothing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/222—Studio circuitry; Studio devices; Studio equipment
    • H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
    • H04N5/272—Means for inserting a foreground image in a background image, i.e. inlay, outlay
    • 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
    • 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
    • G06T2207/10024—Color image
    • 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
    • G06T2207/20—Special algorithmic details
    • G06T2207/20172—Image enhancement details
    • G06T2207/20204—Removing film grain; Adding simulated film grain
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
    • G11B27/031—Electronic editing of digitised analogue information signals, e.g. audio or video signals
    • G11B27/034—Electronic editing of digitised analogue information signals, e.g. audio or video signals on discs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/34—Indicating arrangements 

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Image Processing (AREA)
  • Image Analysis (AREA)

Abstract

Image data is processed by identifying a region of substantially constant colour within a first image. Colour variations, in terms of standard deviation about an average colour, are analysed and a similar level of variation is applied to a second image. The first image may be derived from cinematographic film, with colour variations due to film grain. The second image may be a video image or a computer generated image and the application of a similar level of variation may reproduce noise similar to that present within the film due to grain. In this way, it is possible to add grain to non-filmed images so as to match said images to images derived from film.
GB9705871A 1996-04-12 1997-03-21 Processing image data Expired - Fee Related GB2312124B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9705871A GB2312124B (en) 1996-04-12 1997-03-21 Processing image data

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9607633.6A GB9607633D0 (en) 1996-04-12 1996-04-12 Grain matching of composite image in image
GB9705871A GB2312124B (en) 1996-04-12 1997-03-21 Processing image data

Publications (3)

Publication Number Publication Date
GB9705871D0 GB9705871D0 (en) 1997-05-07
GB2312124A GB2312124A (en) 1997-10-15
GB2312124B true GB2312124B (en) 1998-05-13

Family

ID=26309116

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9705871A Expired - Fee Related GB2312124B (en) 1996-04-12 1997-03-21 Processing image data

Country Status (1)

Country Link
GB (1) GB2312124B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8447127B2 (en) 2004-10-18 2013-05-21 Thomson Licensing Film grain simulation method
US8447124B2 (en) 2004-11-12 2013-05-21 Thomson Licensing Film grain simulation for normal play and trick mode play for video playback systems
US8483288B2 (en) 2004-11-22 2013-07-09 Thomson Licensing Methods, apparatus and system for film grain cache splitting for film grain simulation
US9098916B2 (en) 2004-11-17 2015-08-04 Thomson Licensing Bit-accurate film grain simulation method based on pre-computed transformed coefficients
US9177364B2 (en) 2004-11-16 2015-11-03 Thomson Licensing Film grain simulation method based on pre-computed transform coefficients

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2377652C2 (en) 2003-05-15 2009-12-27 Томсон Лайсенсинг Method and device for presenting image graininess using one or more parametres
WO2005034518A1 (en) 2003-09-23 2005-04-14 Thomson Licensing S.A. Method for simulating film grain by mosaicing pre-computed samples
CN1868215B (en) 2003-10-14 2012-10-03 汤姆森特许公司 Techniques for bit-accurate film grain simulation
US8150206B2 (en) 2004-03-30 2012-04-03 Thomson Licensing Method and apparatus for representing image granularity by one or more parameters
CA2586896C (en) 2004-11-23 2013-11-19 Thomson Licensing Low-complexity film grain simulation technique
CN101841721B (en) 2004-11-24 2011-11-30 汤姆森许可贸易公司 Film grain simulation technique for use in media playback devices
US10715834B2 (en) 2007-05-10 2020-07-14 Interdigital Vc Holdings, Inc. Film grain simulation based on pre-computed transform coefficients

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4771342A (en) * 1985-05-01 1988-09-13 Emf Partners, Ltd. Method and apparatus for enhancing video-recorded images to film grade quality
US4935816A (en) * 1989-06-23 1990-06-19 Robert A. Faber Method and apparatus for video image film simulation
WO1993014591A1 (en) * 1992-01-16 1993-07-22 Faber Robert A Method and apparatus for video camera image film simulation
US5319465A (en) * 1991-09-20 1994-06-07 Sony Pictures Entertainment, Inc. Method for generating film quality images on videotape
WO1995020292A1 (en) * 1994-01-25 1995-07-27 Przyborski Glenn B Apparatus and method for creating film-like video

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4771342A (en) * 1985-05-01 1988-09-13 Emf Partners, Ltd. Method and apparatus for enhancing video-recorded images to film grade quality
US4935816A (en) * 1989-06-23 1990-06-19 Robert A. Faber Method and apparatus for video image film simulation
US5319465A (en) * 1991-09-20 1994-06-07 Sony Pictures Entertainment, Inc. Method for generating film quality images on videotape
WO1993014591A1 (en) * 1992-01-16 1993-07-22 Faber Robert A Method and apparatus for video camera image film simulation
WO1995020292A1 (en) * 1994-01-25 1995-07-27 Przyborski Glenn B Apparatus and method for creating film-like video

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8447127B2 (en) 2004-10-18 2013-05-21 Thomson Licensing Film grain simulation method
US8447124B2 (en) 2004-11-12 2013-05-21 Thomson Licensing Film grain simulation for normal play and trick mode play for video playback systems
US9177364B2 (en) 2004-11-16 2015-11-03 Thomson Licensing Film grain simulation method based on pre-computed transform coefficients
US9098916B2 (en) 2004-11-17 2015-08-04 Thomson Licensing Bit-accurate film grain simulation method based on pre-computed transformed coefficients
US8483288B2 (en) 2004-11-22 2013-07-09 Thomson Licensing Methods, apparatus and system for film grain cache splitting for film grain simulation

Also Published As

Publication number Publication date
GB2312124A (en) 1997-10-15
GB9705871D0 (en) 1997-05-07

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20090321