JPS62202272A - Static image processing method - Google Patents

Abstract

PURPOSE:To obtain the image information of the second image position and to obtain an effective flow processing effect by using the image information to shift the image information in a screen in the direction opposite to a shifting direction when the image information to shift to the first image position before shifting does not exist. CONSTITUTION:In an original static surface A, a vehicle B as an object is stopped, a background area C is shifted by the direction and the quantity shown in the vector arrow mark D and a flow processing is executed. An input static image signal is stored into an image memory 25 by dividing into respective R, G and B screens. A static area is designated by a designating part 11 and the flow direction and the distance are designated by a parameter input part 20. An image processor 23 executes the image processing. At the time of processing, an original image does not exist at an area E, at an area F after shifting, the original image does not exist due to becoming the shadow of the vehicle, and therefore, the image is shifted in the direction reverse to the shifting direction and the data of areas E' and F are obtained. Thus, the effective flow processing effect can be obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a still image processing method that executes a flow process by shifting part or all of a single screen still image in a predetermined direction.

<Prior Art> As a method for performing the above-mentioned panning process optically during photographing, there are panning shots, zooming during exposure, and the like.

A panning shot is a method of slowing down the shutter speed and taking pictures in time with the movement of a moving subject (a person in a car, a bicycle, etc.), thereby creating a sense of speed by stopping the moving subject and moving the background. It is.

On the other hand, zooming during exposure involves changing the focal length of the zoom lens during exposure, emphasizing the subject at the center of the screen, and causing images around the screen to flow in the radial direction.

The photographing method described above required extremely advanced techniques.

Therefore, it is conceivable to obtain the effect of flow processing by applying electrical image processing to images in which the background does not flow during photographing.

However, in the case of panning shots, for example, there are the following problems.

In FIG. 2, A is the original still image, B is a car as a stationary subject, C is a background area to be processed, and D is a vector arrow indicating the direction and amount of the process.

When performing flow processing, each image in the background area of the original image is shifted in the direction indicated by the arrow.
Since there is no original image in , it is only possible to shift to the position of area E' within area C.

Furthermore, the area F after the shift cannot be shifted because it is in the shadow of the car and the original image does not exist.

For this reason, there is a problem that it is difficult to obtain an effective flow treatment effect.

Purpose> An object of the present invention is to provide a still image processing method that can solve the above-mentioned problems and perform effective flow processing.

More specifically, if there is no image information to be shifted to the first image position before the shift corresponding to the second image position to which the shift is made, the image information on the screen is shifted in the opposite direction. The present invention is characterized in that image information at the second image position is obtained using image information.

<Example> FIG. 1 shows a control block diagram of an embodiment of the present invention.

In the figure, reference numeral 11 denotes a still area specifying section for specifying area B in FIG. 2, that is, a still area, which is constituted by a mouse or the like. A CPU 13 executes overall control.

15 temporarily stores data necessary for processing by CPU13. 17 is an image controller and computer bus CB
This is an interface between the image bus 18 and the image bus 18. A ROM 19 stores a control program for the CPU 13. 2o
manually enters the direction and distance parameters for flow processing in the parameter input section. 21 is an A/D converter that converts the human-powered still image signal IN into a digital value; 23 is an image processor that executes image processing; 25 is the human-powered still image signal R;
Image memory that stores data separately for each screen of G and B, 27.
28, 29, 30, 31 is a work memory for image processing, 33 is an integration screen memory for storing calculation results, 32
is a D/ that converts the processed image into an analog signal and outputs it.
FIG. 3 shows a processing program for obtaining a panning effect when an image processing apparatus having the above configuration is used as an A converter.

This will be explained below using FIG.

First, in step S1, the operator
is specified in the specification section 11, and the flow direction and distance are specified in the parameter input section 20.

Next, since the loop specified to define the region is often broken, the edges of the loop are extracted, and the static region is made into a closed loop by using processes such as diffusion and thinning of the extracted edges. (S2). Then, a bit map in which bit 1 is set in the static area surrounded by the closed loop and the outermost frame of the screen is stored in the work grid (1) (FIG. 1, 27) (S3).

Next, the contents of work memory (1) are copied to work memory (2) (S4).

Then, the data of the 8 screens (image memory 25) of the part corresponding to the shift area of the work memory (2) (Fig. 2 C), that is, the part where no bit is set on the bitmap, is stored in the work memory (3). (S6).

Next, the data of the workpiece (3) is stored in the integration memory 33.

Then, in S7, L indicating the shifted distance is initialized to 0.

Next, the data of the workpiece drying (3) is shifted and added on the integration memory (S8.SIO).

S11.312).

At this time, the shift distance is set to 31 to simultaneously shift the data in the work memory (2), take the logical sum of the shifted data and the data in the work memory (1), and store it in the work memory (2) again. Repeat until the amount reached (
S8. S9°Sll, 512). As a result, a bit map in which bits 1 are set in areas B, E', and F in FIG. 2 is formed in the work memory (2).

In S13, the data in the integration memory is divided by the shift amount to obtain the average value of the density level due to the shift, and the average value is stored in the work memory (4).

Then, in S14, the part of the work memory (2) where bit 1 is not set, that is, the area B from the original image data A in FIG.
Work memory address of area excluding E' and F (4)
data is stored in the work memory (5) at the same address.

Next, at SI5, the data in the work memories (3), (4) and the integration memory are reset, and L is initialized to 0, and the process moves to the next step.

In the next steps S+6 to S24, data of areas E' and F that have not been obtained up to SI4 is obtained. As mentioned above, since there is no information to be transmitted in the areas E' and F, in this embodiment, the data in the areas E' and F is obtained by shifting the image in the opposite direction to the shift direction.

First, in SI6, R corresponding to the shift area of work memory (1)
The data on the screen (image memory 25) is transferred to the work memory (
3).

Then, the data in the work memory (3) is entered into the integration memory.

And S8. S10. As in Sll and S12, the shift direction is reversed and the data is shifted and added to the integration memory (S18 to S521).

Then, the data shifted and added in the integration memory is divided by the shift distance 1111tL and stored in the work memory (4) (S22).

Through this operation, the average value of the density level due to the screen shift in the opposite direction is obtained.

Then, the exclusive OR of the work memory (2) and the work memory (1) obtained in S23 and S9 is performed, and the result is replaced with the work memory (2). The work memory (1) has a second
1 is set in area B in the figure, and the work memory before replacement (
2) has area B.

Since 1 is set in E' and F, 1 is set at the address of area E'' and F in the work memory (2) after replacement.

Next, in step 324, the data in the work memory (4) at the address where the pin 1-1 of the work memory (2) is set is stored in the work memory (5) at the same address.

This means that the data obtained by shifting the area excluding area B, that is, the background area C, is stored in the workpiece mesh (5).

Next, data of the R screen (image memory) at the address where the bit of the work memory (1) is set, that is, the address of the static area portion, is stored in the work memory (5) at the same address.

As a result, the image with the still area unchanged and the background area shifted is all stored in the memory (5).

Then, in S26, it is output from the work memory (5), and then 6
To continue screen processing S28.8 screen processing S29, press S.
27, the data in the work memories (2) to (5) and the integration memory are reset.

32B and S29, the processes of S4 to S27 are performed for the 6th screen and 8th screen of the image memory, and the process ends.

Assuming that the number of bits of pixel data stored in the image memory is 8 bits, the work memories (3), (4),
(5) requires 8-bit memory capacity for each address. Further, since the work memories (1) and (2) operate as bitmaps, one bit is sufficient for each address.

Furthermore, the integration memory must have a capacity that does not overflow even when 8-bit data is shifted or added.

In this embodiment, the direction of flow is set parallel to one edge of the image, but it may be set diagonally. In this case, the edge of the screen opposite to the flow direction is at the 2nd position, but it can be processed in the same way.

Further, although the above embodiments have been explained using the flow processing as an example, it is of course possible to apply the present invention to other flow processing such as zooming processing during exposure. In the case of zooming during exposure, the direction of flow is radial, so it is sufficient to perform flow processing in each direction.

Further, although an example in which only a part of the screen is displayed has been described, the present invention can of course be applied to the case where the entire screen is displayed.

<Effects> As described above, in the present invention, when moving an image, if there is no image information to be shifted to the first image position before the shift corresponding to the second image position to which the shift is made, the image on the screen is Since the image information at the second image position is obtained using the image information in which the information is shifted in the opposite direction to the shift direction, it is possible to perform the flow processing without any discomfort or without deleting part of the screen. realizable.

[Brief explanation of drawings]

FIG. 1 is a control block diagram of the image processing neck device of this embodiment, FIG. 2 is an explanatory diagram of panning processing, and FIG. 3 is a control flowchart of panning processing.

Claims (1)

[Claims] When performing flow processing by shifting some or all of the pixels constituting one screen of still images in a predetermined direction, the first image position before shifting corresponds to the second image position to which the shift is to be performed. 1. A still image processing method, characterized in that, when there is no desired image information, image information at a second image position is obtained using image information obtained by shifting image information within a screen in a direction opposite to the shifting direction.