JPH04142886A - Push-in pull-off device for still picture - Google Patents

Abstract

PURPOSE:To attain push-in pull-off as to an optional area in an optional direction by using a read mask picture data so as to clip and synthesize plural still picture data so as to apply the direction effect of the push-in pull-off to a synthesized picture. CONSTITUTION:Plural still pictures are stored in picture memories 24A, 24B and a mask picture data is stored in a mask picture memory 26, a read address of at least one of the picture memories 24A, 24B and the mask picture memory 26 is designated while deviating it continuously at an optional step number, and plural still picture data are clipped and synthesized by using the mask picture data for each designation address to apply the direction effect of the push-in pull-off to the synthesis picture. Thus, the push-in pull-off processing is implemented by the clip and synthesis processing using the mask picture. Thus, the push-in pull-off in an optional direction and for an optional area is improved.

Description

[Detailed description of the invention]

(Industrial Application Field) The present invention relates to a push-in/pull-off device for still images, and is particularly applicable to still image programs, such as high-definition still image programs, that are broadcast in art galleries, museums, libraries, etc. with production effects. , relates to a still image push-in/pull-off device suitable for displaying a search screen for works of art, books, etc., for database searches.

[Prior Art] When creating a still image program or database search screen, when switching the display from the currently displayed still image to the next still image, it is necessary to simply erase the current still image and display the next still image. In addition to simply changing the screen to display a different image, if you create an eye-catching effect by switching between still images in a video-like manner, you can increase the interest of viewers and viewers, and improve the quality of the program. It can enhance the feeling. Therefore, it is desirable to perform a process of switching screens in a moving image-like manner. Therefore, it is desirable to perform screen switching processing by applying effects such as wiping and scrolling. In addition, there are cases where it is desired to pull off or push in images. Pull-off moves the currently displayed image, e.g., image A, in parallel in a certain direction and erases it from the screen, and then displays the next image, e.g., image, fixed on the screen in the area after image A has been moved in parallel. This is a production process in which B appears. In addition, the bush-in is an effect process in which the currently displayed image A is fixed, and the next image B appears while moving in parallel from a certain direction so as to be superimposed on the image A. Conventional methods for performing such pull-off or bush-in processing include the following. In pull-off, assume that the currently displayed image A is stored in the frame memory as shown in Figure 6 (A>).In that case, the readout address is at the top of the frame memory, and the Image A is displayed in its entirety. Next, as shown in FIGS. 6(B) and 6(C), this read address is shifted downward, and the data of image B (image ＠Image data at the bottom of B) will be written.As a result, on the display screen will be shown in Figure 6 (B),
As shown in (C), for example, an upward pull-off effect can be obtained in which the first image moves upward and eight images appear from below. Also, in Butshuin, Figure 7 (△) to (B)
, as shown in (C), image B data is written on top of image A data in the frame memory. At this time, the successive addresses do not change. Thereby, on the display screen, as shown in FIGS. 7(B) and 7(C), the effect of pushing in downward, such that image B comes in from above image A, can be obtained. [Problems to be Solved by the Invention] However, in the conventional device that performs push-in/pull-off processing, there is a problem in that it is extremely difficult to perform push-in/pull-off processing in a limited direction, for example, only in the vertical direction. be. For example, when trying to perform push-in/pull-off processing in the diagonal direction or left/right direction, it takes time to rearrange the pixels, making it difficult to perform the effect processing quickly. Another problem is that it can only be used for push-in/pull-off processing for the entire screen, and it is extremely difficult to perform push-in/pull-off processing for only an arbitrary area. For example, as shown in FIG. 8, it is not possible to perform push-in processing in which the image (glB) is displayed in a circular area on the display screen of image fglA and the display area is moved. The object of the present invention is to provide a push-in/pull-off device for still images that enables push-in/pull-off in any direction and for any area. Means for Solving the Problems 1 The present invention is an apparatus for cutting out and combining a plurality of still images through digital calculation processing and applying a push-in/pull-off effect to the combined image. a plurality of image memories each for storing image data; a mask image memory for storing mask image data corresponding to a cutout area of the still image; and at least one of the image memories and the mask image memory. A means for specifying a read address by continuously changing it by an arbitrary number of steps, and reading out still image data and mask image data for each of the specified successive addresses, and using the read mask image data. The above-mentioned problem is solved by providing means for cutting out and combining a plurality of still image data and applying a push-in/pull-off effect to the combined image.

[Operation 1] In the present invention, in a still image push-in/pull-off device, a plurality of still images are stored in an image memory, and mask image data is stored in a mask image memory,
Specify successive addresses between at least one of the image memories and the mask image memory by shifting them continuously by an arbitrary number of steps, cut out and combine multiple still image data using mask image data for each specified address, and push it into a composite image. Adds an in-pull-off effect. Therefore, since push-in/pull-off processing is performed by cutting out and synthesizing processing using a mask image, the processing can be performed in any direction depending on how the read address is taken. Further, depending on the shape of the mask image, it is possible to perform processing to push in or pull off an arbitrary region of an image into another image. [Example] Hereinafter, an example of the present invention will be described in detail with reference to the drawings. This embodiment is a video production system configured as shown in FIG. 1, which is capable of push-in/pull-off production when producing a program of still images, for example, high-definition still images. As shown in Figure 1, this video production system mainly consists of:
It includes an image input device 10, an image storage device 12, a mask image generation and storage device 14, a command input device 16, an image transfer device 18, a display device 20, and a push-in/pull-off device 22. The image input device 10 is for inputting still images <A, B) used in push-in/pull-off processing, and for example, each color of red (R), green (G), and positive (B). A device that inputs image data of 1024×1024 pixels, such as a color scanner, can be used. The image storage device 12 is for temporarily storing the input image data and reading it out as necessary. The mask image generation/storage device 14 is for generating and storing a mask image used in the cutout and synthesis process during push-in/pull-off. For example, a mask image with a size of 1024×1024 can be generated and used. Further, in the embodiment, a value of 255 is set for the gradation of the generated mask image. The command input device 16 allows the operator to input image data names ("A", "B") to be used for push-in/pull-off, the direction of push-in/pull-off, and the total number of processing steps K, and according to this input. It is used to output various processing commands to push-in/pull-off devices, etc. The image transfer device 18 transfers the image data in the image storage device 12 and the mask image data in the mask image generation and storage device 14 to the push-in/pull-off device 22 according to a command from the command input device 16. . The display device 20 is for displaying an image that has been subjected to push-in/pull-off processing, and can be, for example, a high-definition monitor. The push-in/pull-off device 22 performs push-in/pull-off processing based on the transferred image data and mask image data by digital calculation. As shown in FIG.
, B, 24 pixels each having a size of 1024×1024 pixels].
4Δ, 24B, and a mask image memory 26 that can store mask image data consisting of 8 bits of, for example, 2048×2048 pixels, for storing the generated mask image, and each of the input image memories 24A, 24B. and a read address control unit 28 for changing the read address of the mask image memory 26 one step at a time; and a read address control section 28 for changing the read address of the mask image memory 26 one step at a time; an image synthesis calculation unit 30 for in-pull-off;
It also has a processed image memory 32 that stores the combined image. The image stored in the processed image memory 32 is displayed on the display device 2.
Displayed as 0. In the embodiment, the mask image stored in the mask image memory 26 is a 1024×1024 pixel mask image created by the mask image generation/storage device 14, as shown in FIG. The value of 255 is stored in the area of , and the value of O is stored in the area of relaxation. Next, the operation of the embodiment will be explained. In the movie and other production system according to this embodiment, the image @A
The push-in processing between the image B and the image B is roughly divided into processing preparation and processing execution. First, in J5 to prepare for processing, image data of still images A and B (R, G, B 1024 x 10
24> is input using the image input device 10, and the image storage device 12
Store in. At the same time, a mask image used in the image cutting and combining process is generated and stored in the mask image generation and storage device 14. In the embodiment, a value of 255 is entered in the mask image data. Further, when executing the process, the process is performed as follows according to the procedure shown in FIG. First, the operator inputs the image base "A" used in the push-in process, rBJ, the total number of steps K (1023), and the direction of the push-in from the command input device 16 (
(from bottom left to top right) (Step 1). The image transfer device 18 uses the input image base "Δ" to be used.
, rBJ, the images @A and B are stored in the image storage device 1.
2, and transfer and write to the input image memories 24A and 24B. Further, the image cutout and composite mask image is read from the mask image generation/storage device 14, and is transferred and written to the lower left area of the mask image memory 26, as shown in FIG. 2 mentioned above, for example (step 2). At this time, a value of 255 is stored in the 1024×1024 portion at the lower left of the mask image memory, as shown in FIG. 2, and O is stored in the other portions. Next, the read address control unit 28 sets the successive address of the first input image memory 24A to X=O, Y−〇 (Step Pi!3). Next, the image synthesis calculation unit 30 reads one frame of image from the address X=O1Y=O of the first input image memory 24A, and transfers it to the processed image memory 32 (Step 4).
. In this case, only image A is copied without performing image composition calculation. Next, the read address control unit 28 reads the number of push-in steps K and the push-in direction from the command input device 16 (step 5). Next, the read address control unit 28 calculates n based on the direction of the read push-in step number by one push-in.
(1≦n≦K) The read addresses of the second input image memory 24.8 and the mask image memory 26 at the step entrance are calculated and set (Step 6). The formula for calculating this continuous address is shown below. i. Successive addresses at each n step of the first input image memory 24A, that is, X1n: X to be read at n step start
Address in the Y direction, Yin: The address in the Y direction to be read at the n step entrance is calculated using equations (1) and (2). X1n = O (1) Yln = O (2) In addition, each step of the second input image memory 24B has a readout address, That is, the address in the X direction to be read out at the beginning of X2n:n step and the address in the Y direction to be read out at Y2n:n step are calculated using equations (3) and (4). X2n =1023- [(1023/K)xn](
O≦X2n≦1022) ・・−・−・＜3)Y2
n −(1023/K)xn (1≦Y2n≦1023) ・=−・・・(/I−
) Also, the successive addresses in each n step of the mask image memory 26, xvn: the address in the X direction to be read out to the step opening, and the address in the Y direction to be read out to the 20th YMO step, are expressed by equations (5) and (6). calculate. XMn =1024− [<1023/K)Xn](
1≦XMn≦1023) ・・・・・・(5) YMn
= (1023 / K) The set read address (X1n, Yln), (
1 frame each from X2n , Y2n ) and (XMn . YMn ) <1024X10
24) is read, and the image A and image B are cut out and synthesized using the read mask image data, and transferred to the processed image memory 32 (step 7). As a result, image A
A composite image is obtained in which image B is embedded in the image B. In this case, in the cutting and combining process of each read image, the pixel value of the first input image memory 24A is output for the pixel whose value is ○ in the mask image memory, and the pixel value of the mask image memory 26 is 255. , it is processed by outputting the pixel (direct) of the second input image memory 24B. The 98 processes in step 6.7 are performed in steps up to the range from 1 to 1 (step 8). As a result, each step Since each step of the composite image progresses and each step is displayed continuously, it is possible to express in a moving image the state in which the image eB switches to the image A while changing.Next, after the above processing is performed up to K. , in order to end the push-in, the successive address control unit 28 sets the read address of the second input image memory 24B to X=O, Y=O.
f,: Set (Step 9). Next, the image synthesis calculation unit 30 extracts data for one frame from the addresses X-0 and Y-0 of the second input pixel memory 24B (
1024x1024) image and transfer it to the processed image memory 32 (Step 10). In this case, only image copying is performed without performing image compositing calculations. The push-in process from the lower left to the upper right is performed in the above steps. For example, in FIGS. 4(A), 4(B), and 4(C), the input image memories 24A, 24B, and mask image memory 26 at J3 are used for the 100th step, 500th step, and 1000th step, respectively. The image above and
Examples of a loaded image and an image that has been subjected to cutting and combining processing are shown. For example, at the 100th step shown in FIG. 4(A), the reading start address of the first input image memory 24A is X1n = 0, Yln-〇, from equations (1) and (2),
The reading start address of the second input image memory 24B is (3
), from equation (4), X2n = 923, Y2O = 100.
The sequential start address of the mask image memory 26 is (5), (
6) From the formula, XMn=924 and YMn=100 are calculated. The images read from each address are placed in the center of FIG. 3 (△). As a result, Fig. 3<A
) A cutout and composite processed image is obtained in the processed image memory as shown on the right side of . Similarly, at the 500th step, as shown in FIG.
As shown in , each successive start address is Xln =O,
Y1n = O, X2n = 523, Y2n = 500, X
Mn=524, YMn=500, and the readout image is
The composite image is shown in the center of Figure (B), and the composite image is as shown in the center of Figure (B).
) will be displayed as shown on the right. Also, at the 1000th step, as shown in FIG. 4(C), each successive start address is X1n =○
, Yln =OSX2n =23, Y2O-1000,
XMn=24, YMn=1000, the readout image is shown in the center of the same figure (C), and the composite image is shown in the same figure (C).
) will be displayed as shown on the right. Therefore, as shown in Fig. 4 (△), (B), and (C),
First, in the 10o step program, the upper right part of image B appears in the lower left of the cropped and composite processed image, then the push-in progresses, and at the 500th step, the upper right part advances toward the upper right, and then the push-in progresses until the i ooo step. To the eye, image B almost reaches the upper right corner, and almost the entire display screen is occupied by image B. In this way, it is possible to perform a production process in which image B hits image A diagonally upward from the lower left to the upper right. In the above embodiment, push-in processing in a diagonal direction was shown when switching image A to image B, but pull-off processing can of course be performed depending on how the reading start address is determined. When pulling off, for example, in FIG. 4, contrary to push-in, the readout address of the first input image memory 24A starts diagonally from the lower left, and the readout address of the mask image memory 26 starts from the left side of the center. Change the address toward the upper right, and set the read address of the second image memory 24A to X1n:O
, Yln :O. In addition, by devising the mask image, push-in
With regard to pull-offs, it is possible to obtain new production effects that were not previously available. For example, as shown in Figure 5<A), suppose we prepare image A (town 11, image B (person), and mask image (human shape with gradation of 255 and its height or gradation of O). If these images are cut out and synthesized according to the present invention, for example, the readout address of image A is fixed, and the successive addresses of image B and mask image are avoided to change, so that the images shown in FIGS. ), like (D),
The human-shaped part of the image @B is cut out and synthesized on the background of the image A, and it is possible to obtain a moving effect in which the person moves from right to left. Note that the still image data that can be used in the present invention is not limited to high-definition still images;
The present invention can also be implemented when processing still images of the same method or highly detailed still images. Furthermore, the memory for storing still image data and the memory for storing mask images is not limited to the configuration of the embodiment, and image data of any size can be used depending on the need for image production. . Furthermore, in the embodiment described above, one mask image memory was used to cut out and synthesize images A and B, but the number of mask images used when implementing the present invention is not limited to one; for example,
Prepare two mask images and use one mask to create image A.
Image B can be cut out and synthesized using another mask image. Further, the number of still images to be used is not limited to two; for example, a plurality of mask images can be prepared as described above, and three or more still images can be appropriately cut out and combined with each mask image. For example, an image of a person can be moved and combined with a composite image of two background images to make it appear in the image. [Effects of the Invention] As explained above, according to the present invention, it is possible to apply push-in/pull-off image effects in any direction and in any area, and it is possible to apply a wide range of effects to still image programs. Effects can be obtained. Furthermore, by devising the cutting process of the mask image, excellent effects such as the ability to create new presentation effects that have not been available in the past can be obtained.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of a video production system including a push-in/pull-off device according to an embodiment of the present invention, and FIG. 2 is a mask stored in a mask image memory of the push-in/pull-off device. FIG. 3 is a plan view showing an example of image data. FIG. FIG. 5 is a plan view showing an example of a composite image showing another embodiment of the present invention; FIG. FIG. 7 is a plan view showing an example of image data in memory and an example of a display image when bush-in processing is performed using conventional technology; FIG. 8 is a plan view showing an example of a display image that cannot be performed using conventional technology FIG. 7 is a plan view illustrating an example of bush-in processing for an arbitrary area. 10... Image input device, 12... Image storage device, 14... Mask image generation storage device, 16... Command input device, 18... Image transfer device, 20... Display device, 22 ...Push-in/pull-off device, 24A, 24
B... First and second input image memories, 26... Mask image memory, 28... Read address control section, 30... Image synthesis calculation section, 32... Processed image memory. 4th (A mask image delivery method E 100 steps, BU eyes t77 handling @ - person processing 4th (C mask image memory lθ00, 7 br) HA 177 setting Y composition processing

Claims (1)

[Claims] (1) A device for cutting and compositing multiple still images through digital calculation processing and applying a push-in/pull-off effect to the composite image, and for storing the data of each of the multiple still images. A plurality of image memories, a mask image memory for storing data of a mask image corresponding to a cutout area of a still image, and reading addresses of at least one of the image memories and the mask image memory in an arbitrary number of steps. A means for continuously changing and specifying, reading out still image data and mask image data for each of the specified reading addresses, and using the read mask image data to cut out and synthesize a plurality of still image data. A push-in/pull-off device for still images, comprising: means for applying a push-in/pull-off effect to a composite image;