JPS63142473A - Image synthesizing and recording device - Google Patents

Abstract

PURPOSE:To form various synthesized images by allowing a chromakey device to form a synthesized image between an output signal from an image processor having various image processing functions and another analog image signal. CONSTITUTION:A synthesized image between an output signal from the image processor 100 and an image signal from a color camera is formed by the chromakey device 200. An output signal from the device 200 is inputted to the processor 100 again and the image information is temporarily stored in an image memory. The image information stored in the image memory is printed out by an image recorder 300 for determining an image recording start position every line on the basis of a clock signal corresponding to a horizontal synchronizing signal and printing out the image on copy paper.

Description

[Detailed Description of the Invention] <Industrial Field> The present invention allows various 8-composite images to be easily created by combining an image processing device and a chromakey device, and furthermore, the above-mentioned image processing The present invention relates to an image synthesis and recording device that allows an image recording device connected to the device to reproduce and print an image on copy paper in good condition using image information representing a still image output from an image processing device.

<Prior Art> FIG. 5 is a diagram illustrating image synthesis using a conventional chromakey device.

In this chromakey device, a foreground color video signal in which a subject M is positioned in front of a screen of a predetermined color, for example, blue, as shown in FIG. 5(a), and a background image as shown in FIG. A color video signal is supplied, and a keying signal corresponding to the outline of the subject M and the blue screen is generated from the foreground color video signal, and this keying signal causes the subject M to appear in front of the background as shown in FIG. 5(C). A composite image is formed in which the .

<Problems to be Solved by the Invention> However, when an image recording device attempts to print on copy paper based on the image information output by the conventional chromakey device, the following problem occurs. That is, since the image information output from the chromakey device is a moving image, if the image recording start position is determined for each line by the clock signal corresponding to the horizontal synchronization signal in the image recording device and the image is printed on copy paper, Good image reconstruction cannot be obtained.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to use an image recording apparatus that prints an image on copy paper by determining the image recording start position for each line by a clock signal corresponding to a horizontal synchronization signal, by combining an image with a chromakey device. The goal is to reproduce and print them well.

<Means for Solving the Problems> In order to achieve the above object, the image synthesis recording device of the present invention has a basic feature that it is configured by combining a chromakey device, an image processing device, and an image recording device. More specifically, a first storage memory that stores image information divided into pixel units each represented by an integer fraction of a color subcarrier period, and a pixel group of a specific color signal stored in this first storage memory. a second storage memory for storing the first
A plurality of pixels are read from the and second storage memory, a correlation is calculated, a correlation signal is generated, a keying signal is generated from at least one of the mutual chromaticity difference and luminance difference, and this keying signal is used to generate a keying signal. A chromakey device that controls the level of a color image signal and synthesizes it with other image signals; an image memory that temporarily stores image information; and a chroma key device that performs processing such as changing colors on the image information stored in this image memory. a microprocessor for processing, an external storage memory for storing one or more images created by the processing of this microprocessor as a color palette image used for color change, and an external storage memory for storing the cropped area whose density information has been changed and the cropped area to be cropped. an edge memory that stores edge information for determining pixels corresponding to pixels or edges of the cutout area;
When changing the color of a part of the image information stored in the image memory, the pixels of the cropped area whose density information has been changed are specified in the edge memory, and the color palette image is stored in the external storage memory. an image processing device that outputs the color-changed image signal to the chromakey device using the chromakey device; and an image processing device that manually stores the composite image signal output from the chromakey device in the image memory; and an image recording start position. and an image recording device that prints the image information stored in the image memory on copy paper determined by a clock signal according to the horizontal synchronization signal output from the image processing device every month. It is a feature.

A composite image of the output signal (still image) of the image processing device and another analog image signal (moving image) is created by the chromakey device, and the output signal from this chromakey device is sent to the image processing device again. The image information is input and temporarily stored in the image memory. Since the image information stored in this image memory is a still image, the image recording device determines the image storage start position for each line by a clock signal corresponding to the horizontal synchronization signal and prints it on copy paper. Good image reproduction is performed based on the image information.

<Example> Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

FIG. 1 shows a schematic configuration of an image processing apparatus 100, where 1 is an image memory that temporarily stores image information, and 2 is a memory whose density information is changed to correspond to a pixel of a cutout area to be cut out or an edge of the cutout area. 3 is a D/A converter; 4 is an output signal; 5 is a gate for reading and writing the look-up table memory 2; 7 is a microprocessor which accesses the image memory 1 through a pass line 6 and also accesses the look-up table memory 2 through a pass line 6 and a gate 5. Maf2,
8 is an external storage memory for storing images such as a hard disk or floppy disk; 9 is an interface device such as a mouse or digitizer; and IO is a variable storage memory for storing program variables and the like.

FIG. 2 is a block diagram of an image synthesis recording apparatus of the present invention, which is a combination of the image processing apparatus 100, the chromakey apparatus 200, and the image recording apparatus 300 shown in FIG. The chromakey device 200 has a designated sampling section Nl, a combining section S, and a switch SW.

For example, a color image signal as shown in FIG. 3(a) is divided into an integer number of periods of the color subcarrier! A first storage memory that stores pixel units divided into pixel units represented by , and a second storage memory that stores a pixel group of a specific signal stored in the first storage memory. A plurality of pixels are read from the storage memory of No. 2, a correlation is calculated, a correlation signal is generated, a keying signal is generated from at least one of the mutual chromaticity difference and luminance difference, and this keying signal is used to create a color image. The signal is level-controlled and combined with other image signals. The color subcarrier is 3°58MHz (for NTSC).
1 cycle 0.28 μs), 4.43 MHz (1 cycle) for PAL
Since the frequency has a period of 0.23 μs, this period can be changed from part (A) of Fig. 3(a) to 1/3, 1/3 as shown in Fig. 3(b) and Fig. 3(C). Pixel level a at to, t+, tt, b, and L4, respectively. , al, a! + Chromaticity difference and luminance difference are determined based on pixel groups of specific color signals of a3 and a4, and a keying signal is generated. The switch SW inputs the output of the color camera KI to the specified sampling section Nl, and inputs the output of the image processing device 100 to the composition section S manually, or inputs the output of the color camera Kl to the composition section S, and The output of the image processing device 100 is switched to be manually input to the designated sampling section Nl. Further, the image processing device 10
0 is equipped with an analog switch 101, and by switching to the contact A side, the signal from 1 is input to the color camera, and by switching to the contact B side, the signal from the chromakey device 200 is input manually. .

The image recording device 300 receives image information from the image processing device 100 and programs a color image onto the copy paper, and the image recording start position is adjusted line by line by horizontal synchronization from the image processing device 100. It is determined by a clock signal corresponding to the signal. Furthermore, the monitor 12 is adapted to reproduce the composite image output from the chromakey device 200.

First, a scene like that shown in Fig. 4(a) is photographed using a color camera Kl, and an image processing device is used! The analog switch 101 of the input unit 00 is turned on to the contact A side, and image information of this scenery is temporarily stored in the image memory l of the image processing device 100.

For the image information stored in the image memory l, as shown in FIG.
As shown in b), the 6 degree information in the sky (hatched area) is changed and the pixels of the cutout area are stored in the microprocessor 7, lookup table memory 2. The color palette image stored in the external storage memory 8 is used to specify a color, for example, to change the color from blue to red.

Then, an output signal representing the image shown in FIG. 4(b) is manually inputted to the chromakey device 200. For example, if this signal is used as the background image signal of the composite image, the object image signal representing the object as shown in FIG. to use human power.

In the chroma key device 200, the first chroma key device divides image information into pixel units that are an integer fraction of the color subcarrier period and stores the divided pixel units.
a storage memory and a second storage memory that stores a group of pixels of a specific color signal specified in the storage memory, reads a plurality of pixels, calculates the correlation of the pixels, and generates a correlation signal, A keying signal is generated from at least one of the chromaticity difference and luminance difference, and the input background image signal and subject image signal are synthesized in a synthesis section S, as shown in FIG.
Output a composite image like d).

Then, the analog switch 100 of the image processing device 100
is turned on to the contact B side, and the composite image information output from the chromakey device 200 is temporarily stored in the image memory l of the image processing device 200 again. This composite image is displayed on monitor 1.
Confirmed in 2. Furthermore, the image information of this image memory 1 is stored in a hard disk, floppy disk, etc. of an external storage memory 8 for storing images.

On the other hand, image information (still image) stored in image memory l
is printed using an image recording device 300 that determines the image recording start position for each line by a clock signal corresponding to a horizontal synchronizing signal and prints on copy paper. This print is good because it is a print of a still image. By repeating these operations many times, the image that becomes the keying signal of the chromakey device 200 is zoomed and enlarged using the color camera Kl, as shown in FIG.
The image in e) and the output signal of the image processing device 100 can be combined to create a combined image shown in FIG. 4(f). Each image is created by displaying the results on the monitor I2 and checking visually.

In addition, a palette is created using various image processing functions of the image processing device 100 itself, and this palette is used to change the color of an image to capture multiple objects that have exactly the same shape and pattern but differ only in color. Alternatively, you can prepare as many backgrounds as you need, and use this image signal to
By specifying a sampled color area in the image signal as a keying signal of 00, it is possible to create a composite image of a plurality of subjects with different colors and an image serving as a background.

Further, the density information of the color image is changed by the image processing device 100, and the pixels of the cutout area to be cut out are specified as colors using the color palette image stored in the external memory 8, and various color changes are performed. A composite image by the chromakey device 200 of the image and an image from the color camera Kl that arbitrarily performs one rotation of enlargement and reduction is inputted to the image processing device 100 and stored in the image memory 1, so that various image information can be processed into the image. The recording device 300 should be able to record well.

<Effects of the Invention> As is clear from the above, according to the present invention, a composite image of the output signal of an image processing device having various image processing functions and other analog image signals is created by a chromakey device, so that various You can create composite images. In addition, the output signal from the chromakey device is input again to the image processing device to store the composite image in the image memory, and the image recording device stores the image based on the composite image (still image) stored in the image memory. Since the starting position is determined for each line by a clock signal corresponding to the horizontal synchronization signal and the composite image is printed on copy paper, a good image can be reproduced.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an image processing device, FIG. 2 is a block diagram of an image synthesis recording device according to an embodiment of the present invention, and FIG.
a) is a diagram showing a color image signal, and FIG. 3(b),
(c) is an enlarged view of the part (A) in FIG. 3(a), in which one period is divided into 1/3.1/=1. Figures 4 (a), (b), (c), (a), (c), and (') are diagrams explaining the process of image composition in the above embodiment. Figure 5 is a conventional chromakey device. 1 is a diagram illustrating the process of image synthesis by 1... image memory, 2... lookup table memory, 7... microprocessor, 2... external storage memory, 10... for variable storage. Memory, I2...Monitor, 100...Image processing device, 200...Chromakey device, 300...Image recording device. Patent applicant: Sharp Corporation Agent
Patent attorney Maeda Ao and 2 others (a)
(b) (c) Fig. 5 0O N1: F & SA f! Specify the area and sell it separately. 2nd [K+ (a) (b
)(c)(
t) Figure 4

Claims (1)

[Claims] (1) a first storage memory that stores image information divided into pixel units each represented by an integer fraction of a color subcarrier period;
a second storage memory for storing the pixel group of the specific color signal stored in the first storage memory;
A plurality of pixels are read from the storage memory, a correlation is calculated, a correlation signal is generated, and among the mutual chromaticity difference and luminance difference,
A chromakey device that generates a keying signal from at least one side, controls the level of the color image signal using the keying signal, and synthesizes it with other image signals; an image memory that temporarily stores image information; A microprocessor that performs processing such as changing processed colors on image information that has been processed, and an external storage memory that stores one or more images created by the processing of this microprocessor as a color palette image used for color changing. , an edge memory for storing edge information for determining a pixel of a cutout region to be cut out or a pixel corresponding to an edge of the cutout region whose density information has been changed, and for the image information stored in the image memory, When changing the color of a part of the image, specify the pixels of the cropped area whose density information has been changed in the edge memory, and use the color palette image stored in the external storage memory to change the color of the image signal. an image processing device that outputs a composite image signal to the chromakey device and inputs and stores a composite image signal output from the chromakey device in the image memory; and an image recording apparatus that prints image information stored in the image memory on copy paper determined by a clock signal corresponding to an output horizontal synchronization signal.