JPH084783Y2 - Image processing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to an image processing apparatus for outputting a video image of a still video camera, a VTR or the like to an external device such as a printer.

[Conventional technology]

In recent years, a still video camera that records a video signal (image signal) on a magnetic medium such as a floppy disk has been developed. By displaying the image captured by the camera on a TV screen, it can be developed and developed like a conventional silver halide photograph. It is now possible to see the captured image immediately, without going through a process such as printing. There is also a demand not only for viewing on TV but also for printing on paper like silver halide photographs, which can now be output by a video printer. However, the size of the image size of the print output is uniquely determined by the pixel density of the printer when the video signal is output as it is, and when outputting a larger print image, the video signal or It is necessary to enlarge the digitized image data.

That is, in the conventional image processing apparatus, as shown in FIG. 8, the image signal (image data) recorded on the video floppy 1 is read by the floppy disk drive 3 (reproducing means) according to an instruction from the CPU 2. The FDD / I / F (interface) 4 performs A / D conversion and enters the frame memory 6, and the image data taken out from this frame memory 6 is enlarged by the enlargement circuit 7 and then the printer I / F (interface) It is output to the printer 10 through 8 and an enlarged image is obtained. The CPU 2 issues an output instruction to the printer 10 and sets the enlargement ratio.

[Problems to be solved by the device]

However, in such a conventional image processing device, the underlying image signal depends on the TV standard (NTSC system), and the amount of information is small compared to the silver halide photograph of the conventional camera, Even if the image is enlarged by the enlargement circuit 7 to increase the image size, the enlarged output print has the image quality,
Especially, there is a drawback that an image with good resolution cannot be obtained.

Then, this invention makes it a subject to solve such a problem.

[Means for solving the problem]

In order to solve the above problems, the present invention provides a recording medium for recording a plurality of images obtained by dividing one captured image into a plurality of images, a reproducing means for reproducing the image recorded on the recording medium, and a reproducing device for reproducing the image. Storage means for combining and storing a plurality of images reproduced by the means as one screen, and a combination for detecting adjacent overlapping positions of the plurality of images on the one screen and appropriately joining the overlapping positions of the plurality of images And a means for outputting collectively a plurality of images stored in the storage means and combined as one screen.

[Action]

According to the image processing apparatus having such a configuration, one image is divided into a plurality of images, and the images are reproduced from the recording medium that records a plurality of images, and the reproduced images are reproduced. The storage means combines and stores them as one screen, detects the overlapping position of a plurality of images adjacent to each other on the one screen, and the combining means appropriately joins the overlapping positions of the images, and the one screen stored in the storage means The output means collectively outputs the plurality of images combined as.

In this way, by partially photographing the subject, composing the whole on one screen, and then printing out, it is possible to obtain a large print with good image quality, especially resolution.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings. 1 to 7 are views showing an embodiment of an image processing apparatus according to the present invention.

In FIG. 1, reference numeral 21 denotes a plurality of images obtained by dividing one image-taking screen into a plurality of images (for example, images A, B, C, D obtained by dividing the screen in FIG. 4 into four. Video floppy (recording medium) for recording (overlapping portions adjacent to each other), 23 is a floppy disk drive (playback means) for taking the recorded image as a signal by loading the video floppy 21, and 24 is an image signal taken out FDD / I / F (interface) that performs A / D conversion, etc., 26 is a frame memory that temporarily stores this A / D converted image signal, and 27 is a page memory that stores multiple images as a single screen. (Storage unit), 28 is a printer I / F (interface) that outputs the image data of the page memory 27 to the printer 30, 30 is a printer (output unit) that collectively outputs a plurality of images in the page memory 27, and 22 is , FDD I / F24,
A CPU that operates the frame memory 26, page memory 27, printer I / F 28, etc. according to a predetermined program, and also performs the work of fetching and storing data, and the work of combining images as described later ( It is a combination means).

The operation of such an image processing apparatus will be described with reference to FIGS.
This will be described with reference to the flowchart in FIG.

First, the multiple images recorded on Video Floppy 21
Based on the instruction of the CPU 22, the floppy disk drive 23 reads the data corresponding to one of the images and FDD
・ Input to I / F24 (step P1 in Fig. 2). F
The DD / I / F24 converts the image data to A / D and converts it to the frame memory 26
And the image data is input to the page memory 27 by the instruction of the CPU 22 (step P in the figure).
2). The state of the image stored in the storage area of the page memory 27 at this time is shown in FIG.
Is stored in the upper left of the screen, for example.

Then, again, the floppy disk drive 23 reads out the image B corresponding to the image adjacent to the previous image, and the FDD.I
Input to / F24 (step P3 in Fig. 2). This image data is also transferred to the page memory 27 via the frame memory 26 (step P4 in the figure), and finally the sixth memory.
As shown in the figure, the image B is stored below the image A. In order to successfully store in such a position, the overlapping position (hatched portion) adjacent to the image A previously input in the page memory 27 is first detected (step P in FIG. 2).
Five).

The above step P5 is performed in detail along the flowchart of FIG. That is, the image B is first brought close to the image A from the lower side in FIG. 6 and overlapped by one pixel in the Y coordinate direction (step P1 in FIG. 3). here,
The average per pixel of the difference in the density between the pixels of the overlapping portions of the images A and B in one row that overlap with each other is calculated (step P2 in FIG. 3). Next, it is determined whether or not the calculation has been completed for all combinations of pixels in the Y coordinate direction (step P3 in the figure), and if not completed (step P3 in the same figure).
No.), image B is further shifted by one pixel in the Y coordinate direction (upward in FIG. 6) and overlapped (step in FIG. 3).
P1), the average per pixel of the difference between all pixels is similarly calculated for the overlapped portion (step in the figure).
P2). When it is determined that the calculation has been completed for all combinations of pixels in the Y-coordinate direction by repeating such operations many times (YES in step P3 in the figure),
The minimum value of the average values calculated by the above calculation is detected, and the image B is superimposed and fixed on the image A so that the pixels of such a combination coincide with each other (step P4 in the figure).

Next, the image C transferred to the page memory 27 is finally stored on the right side of the image A as shown in FIG. For this purpose, the image C in the figure is brought closer to the image A from the right side and overlapped by one pixel in the X coordinate direction (step P1 in FIG. 3). Here, the average per pixel of the difference in the dark density between all the pixels of one row of the images A and B of the overlapped portions is calculated (step P2 in the figure), and then the image C is further analyzed. The pixels are shifted by one pixel in the X coordinate direction in the figure and overlapped (step P1 in FIG. 3), and an average per pixel of the difference between all pixels is similarly calculated for the overlapped portion (step P2 in FIG. 3). When it is determined that the calculation has been completed for all combinations in the direction of the X coordinate by repeating such operations many times (YES in step P3 in FIG. 3), the minimum value of the average values calculated above is detected. Then, the image C is superposed on the image A so as to be fixed so that the pixels of such a combination may coincide with each other and stored (step P4 in FIG. 3).

Next, the image D transferred to the page memory 27 is finally stored below the image C and on the right side of the image B as shown in FIG. To this end, the image D in FIG.
Are made to approach each other and are overlapped by one pixel in the Y coordinate direction (step P1 in FIG. 3). Here, the average per pixel of the difference in the density between all the pixels of one row of the overlapping portions of the images A and B of the overlapping portion is calculated (step P2 in the figure), and then the image D is further divided into the fourth portion. 1 in the Y coordinate direction in the figure
The pixels are shifted and overlapped (step P1 in FIG. 3), and the average per pixel of the difference between all pixels is similarly calculated for the overlapped portion (step P2 in FIG. 3). When it is determined that the calculation has been completed for all combinations in the Y coordinate direction by repeating such an operation many times (YES in step P3 in the figure), the minimum value of the average values by the above calculation is detected. Then, the image D is superimposed and fixed on C so that the pixels of such a combination match (step P4 in the figure). Next, the image D in FIG. 4 is overlapped by one pixel toward the image B in the X coordinate direction (step P5 in the figure). Here, in the overlapped portion, the average per pixel of the difference between all pixels is calculated (step P6 in the figure), and the image D is further shifted by one pixel in the X coordinate direction in FIG. Steps in Figure 3
P5), the average per pixel of the difference between all pixels is calculated for the overlapped portion (step in the figure).
P6). This operation is repeated many times, and X in FIG.
When it is determined that the calculation has been completed for all combinations in the coordinate direction (in step P7 in FIG. 3).
YES), the minimum value of the average value calculated by the above calculation is detected, and the image D is superposed and fixed on B so as to match the pixels of such a combination and stored (step P8 in FIG. 3). In this way, it is possible to detect the overlapping positions of a plurality of images obtained by dividing the subject and combine them, and store them in the page memory 27 as one screen.

In this way, when it is determined that all the plurality of images on the video floppy 21 are combined and stored as one screen in the page memory 27 (YES in step P6 in FIG. 2), the printer I / F 28 is read from the page memory 27. By collectively outputting the image data to the printer 30 (step P7 in the figure) via the printer 30, a large print with good resolution can be obtained.

In the above embodiment, as an overlapping position detecting method for joining a plurality of images, an average per pixel of a difference in density between all pixels in an overlapping row is calculated. However, the overlapping positions adjacent to each other may be detected by another method.

[Effect of device]

As described above, according to the present invention, it is possible to obtain a large print with good image quality, especially with high resolution, by partially photographing the subject, combining the entire subject into one screen, and then printing out. .

[Brief description of drawings]

1 to 7 are views showing an embodiment of an image processing apparatus according to the present invention. FIG. 1 is a block diagram of its configuration, FIG. 2 is a flow chart showing its operating procedure, and FIG. FIG. 4 is a flow chart showing an operation procedure of detecting overlapping positions of images adjacent to each other, combining a plurality of images as one screen and storing them in a page memory, and FIG. 4 is a photographed image as one object and storing it in the page memory. FIG. 5 to FIG. 7 are diagrams for explaining a procedure for storing a plurality of images divided and photographed in a page memory, and FIG. 8 is a block diagram showing a configuration of a conventional image processing apparatus. . 21 ... video floppy (recording medium) 22 ... CPU (combining means) 27 ... page memory (storage means) 30 ... printer (output means)

Claims (1)

[Scope of utility model registration request] 1. A recording medium for recording a plurality of images obtained by dividing one captured image into a plurality of images, a reproducing means for reproducing the images recorded on the recording medium, and a plurality of reproducing means for reproducing the images. Storage means for combining and storing the images as one screen, combination means for detecting the overlapping positions of the plurality of images adjacent to each other on the one screen and appropriately joining the overlapping positions of the plurality of images, An image processing apparatus comprising: an output unit that collectively outputs a plurality of images stored in the unit and combined as one screen.