JP2001344614A - Image processor and information storage medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize cross fade by a comparatively light processing load and a small storage capacity. SOLUTION: Image data obtained by coordinating a pallet number to each pixel constituting the object image of cross fade, the first pallet data including the first color information expressed by each pallet number and the second pallet data including the second color information expressed by each pallet number are prepared. In this case, the first picture is obtained when plotting the picture data by using the first pallet data, and the second picture is obtained when plotting the picture data by using the second pallet data. The first and second pieces of color information corresponding to the same pallet number are interpolated by the first and second pallet data to generate at least one piece of interpolated color information expressed by each pallet number and to generate at least one piece of interpolated pallet data including the interpolated color information expressed by each pallet number in addition. Then, an image based on the picture data is displayed in order of the first pallet data, the interpolated pallet data and the second pallet data.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image processing apparatus and an information storage medium, and more particularly to a so-called cross-fade in which when an image is changed to another image and displayed, an intermediate image is displayed between the two images. Related to technology.

[0002]

2. Description of the Related Art In game software and the like, when an image is changed and displayed on another image, a so-called cross-fade is often used as a video expression method in which a plurality of intermediate images obtained by superimposing the two images are displayed during the change. Used. The plurality of intermediate images are generated such that the ratio of superimposition of the latter to the former gradually increases over time, and as a result, another image gradually appears from one image.

[0003]

When such a crossfade is realized by a computer system operable as an image processing device such as a home or business game machine,
There is a method in which two images are transferred to an image processing IC, one image is translucently combined with the other image, and the combined result is displayed. In this case, if the ratio of translucent composition is increased with time, one image can gradually appear from the other image. However, this method uses an image processing IC
This is not appropriate when the processing load is large, and an image representation with a large processing load is required for parts other than the cross fade. In this regard, if the two pictures are translucently synthesized by the CPU and sequentially transferred as an intermediate image to the image processing IC, the processing load on the image processing IC can be reduced, but the processing load on the CPU increases this time. .

When an intermediate image is generated by an image processing IC, the type of intermediate image that can be displayed depends on the processing performance of the image processing IC (variation in the ratio of translucent composition). Cannot be displayed,
In some cases, smooth crossfades cannot be achieved.

[0005] If all intermediate images are prepared in advance in addition to the two images at the start and end of the crossfade, the processing load on the CPU or the image processing IC is reduced, but this time, the computer system The amount of data that needs to be stored becomes enormous.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to provide an image processing apparatus and an information storage medium which can realize crossfade with a relatively light processing load and a small storage capacity. To provide.

[0007]

According to an aspect of the present invention, there is provided an image processing apparatus comprising: a picture data storing picture data in which a pallet number is associated with each pixel constituting an image of a predetermined size; Storage means, first pallet data storage means for storing first pallet data including first color information represented by each pallet number, and second pallet data comprising second color information represented by each pallet number. A second pallet data storage unit for storing the second pallet data; and interpolating the first and second color information corresponding to the same pallet number in the first and second pallet data so that each pallet number is Interpolation color information generating means for generating at least one piece of interpolation color information to be represented, and at least one piece of interpolation pallet data comprising the interpolation color information represented by each pallet number.
Interpolated pallet data generating means, and image display means for sequentially displaying images based on the picture data by using the first pallet data, the interpolated pallet data, and the second pallet data in order. It is characterized by including.

Further, an information storage medium according to the present invention is an information storage medium storing data and a program for operating a computer as an image processing apparatus, wherein a palette number is assigned to each pixel constituting an image of a predetermined size. A first palette data including the associated picture data, a first color information represented by each palette number, a second palette data including a second color information represented by each palette number, A program for interpolating the first and second color information corresponding to the same pallet number in the first and second pallet data to generate at least one piece of interpolated color information represented by each pallet number; A program for generating at least one interpolation palette data including the interpolation color information represented by the palette number, the first palette data; Serial interpolation palette data, and using said second palette data sequentially, is obtained by storing a program for sequentially displaying an image based on the picture data.

According to the present invention, the picture data is the first picture data.
And then displayed using the above-mentioned interpolation palette data. Then, the picture data is finally displayed using the second pallet data. The interpolation palette data includes interpolation color information represented by each palette number, and each interpolation color information corresponds to the same palette number as the palette number corresponding to the interpolation color information. Are generated by interpolating the first and second color information.
Then, at least one, and preferably a plurality of the interpolation palette data are generated. In this case, the image is displayed between the image based on the picture data displayed using the first palette data and the image based on the picture data displayed using the second palette data. An image based on the data is displayed using the interpolation pallet data, and a cross fade can be realized. In particular, in the present invention, the cross-fade can be realized only by calculating the interpolation pallet data based on the first and second pallet data, and it is not necessary to calculate the interpolation color information for all the pixels constituting the image. For this reason, especially when the number of pallets is smaller than the total number of pixels, crossfade can be realized with a light processing load and a small storage capacity. When a plurality of interpolation pallet data is generated, the interpolation color information is the first color information and the second color information.
It is desirable to gradually increase the ratio of the latter with the color information. With this configuration, an image based on the picture data displayed using the second palette data can gradually appear from an image based on the picture data displayed using the first palette data. . The pallet number is information for identifying color information, and is not necessarily limited to a number.

Further, the image processing apparatus according to the present invention comprises a picture data storage means for storing picture data in which a pallet number is associated with each pixel constituting an image of a predetermined size, and a first picture data represented by each pallet number. First pallet data storage means for storing first pallet data including color information, and second pallet data for storing second pallet data including second color information represented by each pallet number Interpolation palette data comprising storage means and interpolation color information represented by each palette number, wherein the first and second color information corresponding to the same palette number in the first and second palette data are interpolated. An interpolation pallet data storage means for storing at least one of the interpolation pallet data including the interpolation color information, the first pallet data, the interpolation pallet data, The second pallet data sequentially with, characterized in that it comprises a, an image display means for sequentially displaying the image corresponding to the picture data.

Further, an information storage medium according to the present invention is an information storage medium storing data and a program for causing a computer to operate as an image processing apparatus, wherein a palette number is assigned to each pixel constituting an image of a predetermined size. A first palette data including the associated picture data, a first color information represented by each palette number, a second palette data including a second color information represented by each palette number, Interpolation palette data including interpolation color information indicated by each palette number, wherein the first and second palette data correspond to the same palette number.
And interpolated pallet data including interpolated color information obtained by interpolating the second color information and the first pallet data, the interpolated pallet data, and the second pallet data. And a program for sequentially displaying images.

According to the present invention, the picture data is the first picture data.
And then displayed using the above-mentioned interpolation palette data. Then, the picture data is finally displayed using the second pallet data. The interpolation palette data includes interpolation color information represented by each palette number, and each interpolation color information corresponds to the same palette number as the palette number corresponding to the interpolation color information. Are generated by interpolating the first and second color information. Then, at least one, and preferably a plurality of the interpolation pallet data are stored. In this case, the image is displayed between the image based on the picture data displayed using the first palette data and the image based on the picture data displayed using the second palette data. An image based on the data is displayed using the interpolation pallet data, and a cross fade can be realized. In particular, in the present invention, since only interpolation pallet data needs to be stored, cross-fade is realized with a smaller storage capacity as compared with the related art in which all interpolated images in the middle of cross-fade must be stored in advance. be able to.
When storing a plurality of interpolation pallet data,
It is desirable that the interpolation color information is such that the ratio of the first color information and the second color information gradually increases. With this configuration, an image based on the picture data displayed using the second palette data can gradually appear from an image based on the picture data displayed using the first palette data. .

The pallet number is based on the color information given to each pixel constituting the first image and the color given to the corresponding pixel constituting the second image having the same size as the first image. , And the picture data is assigned to each pixel constituting an image having the same size as the first and second images. Is generated by associating a palette number assigned to a combination of color information assigned to the pixel at the same position in the first palette data. The first palette data is, for each palette number, the color information of the color information assigned the palette number. Of the combinations, the palette information is generated by associating color information attached to pixels constituting the first image, and the second palette data is assigned to each palette number by the palette number. Of the combination of kicked the color information,
It is preferable that the image is generated by associating the color information given to the pixels constituting the second image. This makes it possible to realize a cross-fade between the first image and the second image.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the drawings.

In the following, for simplicity, an image A of 3 × 3 pixels shown in FIG. 1A and an image B of 3 × 3 pixels shown in FIG. A technique for realizing the cross fade will be described. FIG. 1A shows an example of a pre-crossfade image (image A; first image), and FIG. 1B shows an image after the crossfade (image B;
(Second image). In the image A shown in FIG. 3A, in a square image of 3 pixels vertically × 3 pixels horizontally, three pixels in one line in the central vertical direction are colored red, and the other pixels are colored white. I have. In the image B shown in FIG. 3B, in a square image of 3 pixels vertically by 3 pixels horizontally, three pixels in one row in the center and horizontal are colored blue, and the other pixels are colored white. Have been. These images A and B
Is specified by the picture data and the palette data. In the image A, the pixels with white color are associated with the temporary palette number “0000”, and the pixels with red color are associated with the temporary palette number. The number “0001” is associated. This association is stored in the picture data. Then, for the image A, the temporary pallet data A shown in FIG. In the temporary palette data A, the color information “R31, G” is added to the temporary palette number “0000”.
31, B31 "and the temporary pallet number" 00
01 ”is associated with color information“ R31, G0, B0 ”. Similarly, in the image B, a temporary pallet number “0000” is associated with a pixel with white color,
The provisional pallet number “0001” is associated with the blue pixels. This association is also stored in the picture data. Then, for the image B, provisional pallet data B shown in FIG. 2B is prepared. In this temporary palette data B, the color information “R” is assigned to the temporary palette number “0000”.
31, G31, B31 "and color information" R0, G0, B31 "are associated with the temporary pallet number" 0001 ". Here, “R1, Gm, Bn” is one of the numerical expressions of the color, 1 is the amount of the red component, m is the amount of the green component, and n is the amount of the blue component. Each amount is from 0 to 3
Take any value up to 1.

In this embodiment, there are pixels that remain white before and after the crossfade, pixels that change from red to blue, pixels that change from white to blue, and pixels that change from red to white. In the following, as shown in FIG.
Each pixel of the cross-fade target image (images A and B and the interpolated image) will be described. That is, the pixel at the upper left corner is denoted by P1, the pixel on the right side thereof is denoted by P2, and the pixel on the right side thereof, ie, the pixel at the upper right corner is denoted by P3. Further, the pixel on the left side of the middle stage is denoted by P4, the pixel on the right side thereof, that is, the central pixel is denoted by P5, and the pixel on the right side thereof is denoted by P6. The pixel at the lower left corner is denoted by P7, the pixel on the right side is denoted by P8, and the pixel on the right side thereof, that is, the pixel at the lower right corner is denoted by P9. As shown in FIG. 4, the pixels P1, P3, P7, and P9, that is, the pixels at the four corners remain white (see FIG. 1). The pixels P4 and P6 change from white to blue (see FIG. 1). In addition, pixels P2 and P
8 changes from red to white (see FIG. 1). Further, the pixel P5, that is, the central pixel changes from red to blue (see FIG. 1). Thus, in this example, there are four combinations of color information before and after crossfade. Here, pallet numbers “00000000”, “0”
0000001 "," 00010000 "," 0001
0001 ”. These pallet numbers are shown in FIG.
The temporary pallet number shown in FIG. 7A is combined with the temporary pallet number shown in FIG. 7B (the upper 4 digits are the temporary pallet number of the temporary pallet data A, and the lower 4 digits. Is the tentative pallet number of the tentative pallet data B), and the pallet number may be set in any way as long as the combination of the color information before and after the crossfade can be identified. Then, the pallet number “00000000” is associated with the pixels P1, P3, P7, and P9, and the pixels P4, P4
Palette number “00000001” is associated with P6, and palette number “0001000” is assigned to pixels P2 and P8.
"0" and the pixel P5 with the pallet number "00010001" are prepared as picture data to be used for crossfading. Here, an 8-bit number is used as the pallet number,
Four bits each are used as the temporary pallet numbers of the temporary pallet data A and B. This way, 2 of 4
Image A and Image B can be drawn using the power, ie, up to 16 colors. Here, the limit of the number of colors used in the image A and the image B is set to 16 colors, but one limit of the image A and the image B is set to two colors (2 to the first power), and the other limit is set to 128. It may be a color (2 to the seventh power). One limit is set to four colors (2 squared), and the other limit is set to 64 colors (2 squares).
6). Furthermore, one of the limits is 8 colors (2
), And the other limit may be 32 colors (2 5).

Further, using the temporary pallet data A and the temporary pallet data B, the pallet data A shown in FIG.
And pallet data B are generated. FIG. 7A shows pallet data A, and FIG. 7B shows pallet data B. The pallet data A and B both correspond to pallet numbers and color information. As described above, the palette number is assigned to the combination of the color information before and after the crossfade, but the palette data A
In the table, the pallet number is associated with the color information relating to the image A among the combinations of the color information assigned to the pallet number. On the other hand, in the pallet data B, the pallet number and the color information relating to the image B among the combinations of the color information assigned to the pallet number are associated with each other. The pallet number is generated by combining the temporary pallet number in the temporary pallet data A with the upper four digits and the temporary pallet number in the temporary pallet data B with the lower four digits. The color information associated with the temporary pallet number corresponding to the digit is read from the temporary pallet data A, and the pallet data A can be generated by associating it with the pallet number. Further, the palette information B can be generated by reading the color information associated with the temporary palette number corresponding to the last four digits of each palette number from the temporary palette data B and associating it with the palette number. .

When cross-fading between the image A and the image B is performed using the picture data and the palette data A and B obtained as described above, the color information included in the palette data A and the palette data B is interpolated. Then, the interpolation palette data X, Y, and Z are generated (here, a five-stage crossfade is described). FIG. 6 shows the interpolation palette data X,
Y and Z are shown. Here, a case where three interpolated images X, Y, and Z are sequentially displayed between the image A and the image B will be described. FIG. 7A shows interpolation pallet data X for displaying an interpolation image X, and FIG. 7B shows interpolation pallet data Y for displaying an interpolation image Y. FIG. 3C shows interpolation pallet data Z for displaying the interpolation image Z. For example, the color information (R31, B0, B0) of the palette number "00010001" that represented red in the palette data A
Is (R24, G0, B
8), and then (R1
6, G0, B16). Further, in the interpolation pallet data Z, it becomes (R8, G0, B24), and finally, in the pallet data B, it becomes (R0, G0, B31), which changes to blue. In this way, the pixel P5 assigned the pallet number “00010001” is changed from red to blue through three intermediate colors and finally to blue by crossfading. In the interpolation palette data X, Y, and Z, each color component included in the interpolation color information is associated with each color component of the color information associated with the same palette number in the palette data A and the same palette number in the palette data B. And the respective color components of the color information can be obtained by linear interpolation. Here, the interpolation color information is obtained by linear interpolation. However, the interpolation color information is not limited to linear interpolation, and may be obtained by other interpolation processing.

FIG. 7 shows a state of crossfading realized by the method described above. (A) of FIG.
FIG. 3B shows the interpolated image X.
FIG. 11C shows the interpolated image Y, and FIG. 10D shows the interpolated image Z. FIG. 3E shows an image B. As shown in FIG.
P6 gradually changes from white to blue, and it can be seen that the image B can gradually appear from the image A by changing the palette.

Hereinafter, a game device capable of executing the above-described crossfade will be described as an embodiment of the present invention.

FIG. 8 is a diagram showing an overall configuration of a game device according to an embodiment of the present invention. The game apparatus 10 shown in FIG. 1 is configured by mounting a CD-ROM 25, which is an embodiment of an information storage medium according to the present invention, to a consumer game machine 11 connected to a monitor 18 and a speaker 22. Here, in order to supply the game program and the game data to the consumer game machine 11, the CD-ROM 25 is used.
However, any other information storage medium such as a DVD or a ROM card can be used. In addition, as described later, a game program and game data can be supplied to the consumer game device 11 from a remote place via a communication network.

The home game machine 11 includes a CPU 14, a GP
U16, SPU20, CD-ROM reader 24, RA
The M26, the ROM 28, and the input / output control unit 30 are connected to each other via the bus 12 so that mutual data communication is possible, and the controller 32 is connected to the input / output control unit 30 by code. Each component of the consumer game machine 11 other than the controller 32 is accommodated in a predetermined housing. Monitor 18
For example, a home-use television receiver is used, and the built-in speaker is used as the speaker 22, for example.

The CPU 14 includes a microprocessor, and controls each part of the consumer game machine 11 based on an operating system stored in the ROM 28 and a game program read from the CD-ROM 25. The bus 12 is used for exchanging addresses and data between the units of the consumer game machine 11. The ROM 28 stores an operating system which is a program necessary for controlling the overall operation of the consumer game machine 11. The RAM 26 has a CD-R
The game program and game data read from the OM 25 are written as needed. The GPU (graphics processing unit) 16 includes a VRAM, receives image data (picture data and pallet data) sent from the CPU 14, and receives the VRA.
In addition to writing to M, the content is converted to a video signal and output to the monitor 18 at a predetermined timing.

The SPU (sound processing unit) 20 includes a sound buffer.
Data such as music and game sound effects read from the CD-ROM 25 and stored in the sound buffer is reproduced and output from the speaker 22. CD-ROM reader 24
Reads a game program and game data recorded on the CD-ROM 25 in accordance with an instruction from the CPU 14.

The input / output control unit 30 is an interface for connecting one or more external input / output devices to the consumer game machine 11, and here, a controller 32 and a memory card 33 are detachably mounted. Memory card 3
Alternatively, an auxiliary storage device other than 3 or an external communication device such as a modem or a terminal adapter may be connected. The controller 32 is input means for the player to perform a game operation. The input / output control unit 30 has a fixed period (for example, 1 /
Every 60 seconds), the operation state of various buttons of the controller 32 is scanned, and an operation signal representing the scan result is passed to the CPU 14 via the bus 12. The CPU 14 determines a game operation of the player based on the operation signal.

FIGS. 9 and 10 are flowcharts for explaining processing for realizing the crossfade shown in FIG. Here, the pallet number “00000000” is associated with the pixels P1, P3, P7, and P9 as picture data in the CD-ROM 25, and the pixel P
4, P6 is associated with pallet number “00000001”, and pixels P2 and P8 are associated with pallet number “000100”.
00 is stored in advance, and the pixel P5 is stored in advance with the pallet number “00010001”, which is stored when the home game machine 11 starts up.
It is assumed that M26 has been read. CD-R
It is assumed that the OM 25 further stores pallet data A and B shown in FIG. 5 in advance, and the pallet data is read into the RAM 26 when the consumer game machine 11 is started.

When it is time to execute a crossfade, the processing shown in FIG. The processing shown in FIG. 10 and FIG.
5 based on a part of the game program stored in CP
Implemented by U14. As shown in FIG. 9, when performing a crossfade, first, the CPU 14 initializes a variable n to 0 (S100). The variable n is stored in the RAM 26 when crossfading is performed, and identifies a displayed image (images A and B and interpolated images X, Y and Z). Here, the total number of images is 5, and the variable n is an integer from 0 to 4 inclusive. Next, the CPU 14 stores the picture data read in the RAM 26 in advance into the GPU 1
6 is transferred to the VRAM (S101). Further, the CPU 14 transfers the pallet data A read in advance in the RAM 26 to the VRAM provided in the GPU 16 (S102). And the CPU 14 is the GPU 16
Is instructed to draw using the picture data and pallet data A held in the VRAM (S103). Thereafter, it is determined whether the crossfade processing is completed (S10).
4). For example, the end of the crossfade process is determined based on a condition such as a predetermined operation input from the controller 32. If not, the CPU 14 updates the variable n (S105). Specifically, when the variable n is “0, 1, 2,
3, 4, 3, 2, 1, 0, 1, 2, 3,... ". In this way, after the cross fade from the image A to the image B, the cross fade from the image B to the image A is performed. Then, the images A and B are displayed alternately, and the interpolated image is displayed in the middle of the images.

After updating the variable n, the CPU 14 generates the next pallet data (S106). Specifically, FIG.
0, the CPU 14 first sets the variable i to “00”.
000000 ”(S201). The variable i is R
It is stored in the AM 26 and represents a pallet number. Next, the CPU 14 reads the color information of the pallet number i of the pallet data A (S202), and further reads the color information of the pallet number i of the pallet data B (S20).
3). That is, the color information of the same palette number i is read from the palette data A and B. And the CPU 14
Generates interpolation color information related to the palette number i by linearly interpolating them (S204). Specifically, each color component of the interpolation color information is calculated according to the following equation (1).

[0029]

## EQU1 ## where Cn ⁽ⁱ⁾ = CA ⁽ⁱ⁾ .times. (1-n / N) + CB ⁽ⁱ⁾ .times.n / N (1) where CA ⁽ⁱ⁾ is assigned to pallet number i in pallet data A. The associated color information. CB ⁽ⁱ⁾
Is color information associated with the palette number i in the palette data B. Further, N is a value obtained by subtracting 1 from the total number of images displayed by crossfading. Here, since a total of five images A, B and interpolated images X, Y, Z are displayed, N = N 4. Also, n
Are variables initialized in S100 and stored in the RAM 26. In Equation (1), when the right side includes a number of decimals or less, for example, a value obtained by truncating the decimal point is set as the left side value. Also, cn ⁽ⁱ⁾ , CA ⁽ⁱ⁾ and C
B ⁽ⁱ⁾ is vector data, and equation (1) is R, G,
The process is executed for each color component of B. Further, when n = 0 and n = 4, they correspond to the pallet data A and B, respectively, so the processing of S204 and subsequent S205 is omitted, and the pallet data A or B is stored in the RAM 26 in S107 described later.
Is transferred directly to the VRAM of the GPU 16.

When the interpolation color information is generated in this way (S2
04) Then, the CPU 14 adds the generated interpolation color information to the interpolation pallet data to the RAM 26 (S205). Specifically, the CPU 14 secures a storage area for the interpolation palette data in the RAM 26, and stores the interpolation color information generated in S204 in the storage area in association with the palette number i. Then, the CPU 14 determines whether the generation of the pallet data is completed (S206). That is, it is determined whether the generation of the interpolation color information for the necessary pallet number (S204) and the addition of the interpolation color information to the interpolation pallet data (S205) have been completed. The pallet number is an 8-bit numerical value in the above example, but it is not necessary to execute the processing of S204 and S205 for all of them, and only the pallet numbers used in the images A and B are S204 and S20.
The processing of step 5 may be performed. For other palette numbers, for example, dummy color information such as (R31, G31, B31) may be set. When the generation of the pallet data is not completed, the CPU 14 increments the variable i (S2).
07) Then, the processing after S202 is executed again for the next pallet number. Note that it is not necessary to increment the variable i one by one. For example, in the examples of FIGS.
000000 "," 00000001 "," 0001
If the values are incremented in the order of “0000” and “00010001”, the interpolation color information can be set for the required pallet number.

When the pallet data is generated as described above, the pallet data stored in the RAM 26 is
The CPU 14 transfers the data to the VRAM provided in the GPU 16 (S107, FIG. 9). And CPU14 is GPU1
6 is again instructed to draw picture data using the transferred pallet data (S103).

According to the above-described embodiment, the number of colors used is often smaller than the number of all pixels constituting an image. (It is rather rare that all the pixels have different colors.) Therefore, crossfade can be realized with a relatively light processing load and a small storage capacity.

The present invention is not limited to the embodiment described above.

For example, in the above description, other than the picture data,
Only pallet data A and pallet data B are CD-R
Although the OM 25 is stored in advance, the interpolation pallet data X, Y, and Z are generated in advance by another system.
It may be stored in the CD-ROM 25 together with the pallet data A and B. Even in this case, the picture data is common during the crossfade, and the crossfade can be realized with a relatively small storage capacity.

Although the above description has been made with respect to an example in which the present invention is implemented using the home game machine 11, the present invention is similarly applicable to arcade game machines. In this case, it is desirable to use a higher-speed storage device instead of the CD-ROM 25 and to integrally form the monitor 18 and the speaker 22.

In the above description, the CD-ROM 25 storing the game program and the game data is used in the home game machine 11, but the information storage medium storing the game program and the game data, such as a personal computer, is used. Any computer that can read and process information based on the read content can be used.

[Brief description of the drawings]

FIG. 1 is a diagram showing an image A (a) displayed first and an image B (b) displayed last in a crossfade.

FIG. 2 is a diagram showing temporary pallet data A and B.

FIG. 3 is a diagram illustrating pixels constituting a cross-fade target image.

FIG. 4 is a diagram illustrating a combination of color information before and after crossfade.

FIG. 5 is a diagram showing pallet data A and B.

FIG. 6 is a diagram showing interpolation pallet data X, Y, and Z.

FIG. 7 is a diagram showing a state of a crossfade.

FIG. 8 is a diagram showing a configuration of a game device according to an embodiment of the present invention.

FIG. 9 is a flowchart illustrating a crossfade process according to the embodiment of the present invention.

FIG. 10 is a flowchart illustrating details of a palette data update process.

[Explanation of symbols]

Reference Signs List 10 game machine, 11 home game machine, 12 bus, 14 CPU, 16 graphics processing unit (GPU), 18 monitor, 20 sound processing unit (SPU), 22 speakers, 2
3 Commercial music CD, 24 CD-ROM reader, 25
CD-ROM, 26 RAM, 28 ROM, 30 input / output control unit, 32 controller, 33 memory card.

 ──────────────────────────────────────────────────続 き Continued on front page F term (reference) 2C001 BC00 BC05 BC06 BC10 CB01 CB06 CC02 5B050 AA10 BA08 EA09 EA17 EA24 FA02 FA05 FA10 5B057 CA01 CB01 CE08 CE17 CH07 5C023 AA12 CA03 CA05 5C066 AA09 CA01 CA21 ED06 HA03

Claims (5)

[Claims] 1. A picture data storage means for storing picture data in which a pallet number is associated with each pixel constituting an image of a predetermined size, and a first color information comprising first color information represented by each pallet number. First pallet data storage means for storing pallet data; second pallet data storage means for storing second pallet data including second color information represented by each pallet number; Interpolation color information generating means for interpolating the first and second color information corresponding to the same palette number in the second palette data to generate at least one piece of interpolation color information represented by each palette number; Interpolation palette data generation means for generating at least one interpolation palette data including the interpolation color information to be represented; the first palette data; and the interpolation palette Over data,
And an image display means for sequentially displaying images based on the picture data by sequentially using the second pallet data. 2. A picture data storage means for storing picture data in which a pallet number is associated with each pixel constituting an image of a predetermined size, and a first color information comprising first color information represented by each pallet number. First pallet data storage means for storing pallet data; second pallet data storage means for storing second pallet data including second color information represented by each pallet number; Interpolation palette data including interpolation color information, including interpolation color information obtained by interpolating the first and second color information corresponding to the same palette number in the first and second palette data. Interpolation pallet data storage means for storing at least one of the following, the first pallet data, the interpolation pallet data,
And an image display means for sequentially displaying images corresponding to the picture data by sequentially using the second pallet data. 3. The image processing device according to claim 1, wherein the pallet number is a color information assigned to each pixel constituting the first image, and a pallet number having the same size as the first image. And the color information assigned to the corresponding pixels forming the second image, and the picture data is assigned to each of the images having the same size as the first and second images. A pixel is generated by associating a pallet number assigned to a combination of color information assigned to a pixel at the same position in the first and second images with each other. Against
Of the combinations of color information to which the pallet numbers are assigned, the pallet numbers are generated by associating the color information attached to the pixels constituting the first image, and the second pallet data is generated for each pallet number. ,
An image processing apparatus characterized by being generated by associating color information attached to pixels constituting the second image among combinations of color information to which the palette numbers are assigned. 4. An information storage medium storing data and a program for causing a computer to operate as an image processing apparatus, the picture data comprising a palette number associated with each pixel constituting an image of a predetermined size; First palette data including first color information represented by a palette number; second palette data including second color information represented by each palette number; and the first and second palette data A program for interpolating the first and second color information corresponding to the same pallet number to generate at least one piece of interpolated color information represented by each pallet number; A program for generating at least one interpolated pallet data comprising: the first pallet data; the interpolated pallet data;
And a program for sequentially displaying images based on the picture data by sequentially using the second pallet data, and an information storage medium storing: 5. An information storage medium storing data and a program for causing a computer to operate as an image processing apparatus, the picture data comprising a pixel number associated with a pallet number for each pixel constituting an image of a predetermined size; First palette data including first color information represented by a palette number, second palette data including second color information represented by each palette number, and interpolation color information represented by each palette number. Interpolated pallet data including interpolation color information obtained by interpolating the first and second color information corresponding to the same pallet number in the first and second pallet data; The first pallet data, the interpolation pallet data,
And a program for sequentially displaying images based on the picture data by sequentially using the second pallet data, and an information storage medium storing: