JPS62280972A - Color picture data processor - Google Patents

Abstract

PURPOSE:To attain a satisfactory processing based on the color of a color picture by using a cooperation signal obtained by synthesizing results processed by plural independent processing parts. CONSTITUTION:The outputs of OR gates 262-264 are supplied to an AND gate 266. It can obtain an output becoming '1' when among three flags FR, FG and FB, the two flags come to '1', that is, a majority decision output MAJ, which is supplied to a selector 260. A selection signal SEL corresponding to contents processed by the processing parts 23R-23B is supplied to the selector 260. Any one of the output of AND, output of OR and majority decision output of MAJ can be obtained as the cooperation signal CO, fed back to the processing parts 23R-23B, and the subsequent processings are executed based on the cooperation signal CO.

Description

[Detailed description of the invention] Detailed description of the invention [Industrial application field] The present invention relates to a color image data processing device.

[Summary of the invention]

This invention is a system in which each color signal data constituting color image data, for example, each primary color signal data of red, green, and blue, is processed by independent processing units, and the processing results of each independent processing unit are combined. A cooperative signal is obtained, and this cooperative signal can be used to perform processing based on the color of a color image.

[Conventional technology]

Various video image processing systems have been proposed (eg.
8-D No. 4, see Japanese Patent Application Laid-open No. 58-215813)
.

FIG. 3 shows an example of this video image processing device.

In general, this type of image processing device, as shown in the figure, includes a human output section (1), a memory section (2) consisting of an input image memory (2^) and an output image memory (2B), and a data processing section ( 3).

The input/output unit (1) converts a video signal from, for example, a video camera (4) into digital image data, writes this into the input image memo IJ (2A), and
Read out the processed image data from the output image memory (2B), convert it D/A and return it to an analog video signal, and record it on, for example, a VTR (51) or send it to a monitor (6). to enable video images to be monitored.

Writing to and reading from the memory section (2) is performed in units of a group of images, that is, one field or one frame. Therefore, each of the human image memory (28) and the output image memory (2B) has a plurality of memories each having a capacity for one field or one frame of @image data.

The data processing unit (3) uses a processor to read the image data stored in the input image memory (28) according to its program, performs various processing processes on it, and outputs the processed data to the output image memory (28). 2B).

The processor of the data processing section (3) is composed of one or more processors, and the microprogram, which is the contents of the microprogram memory, can be replaced if the range of processing is to be further expanded. In this case, a program supply unit (generally a host computer) (7) supplies a litho microprogram to each processor, and the microprograms are exchanged in response to a user's program exchange request (turning on a switch). .

Conventionally, most of the image processing apparatuses of this type have been subject to monochrome image data. Therefore, we decided to use this single color image processing device as Color I! Il! If it is used as is for i-image processing, the configuration will be as follows.

That is, for example, as shown in FIG.
1B) and the resulting output data R', G
' and B' are supplied to the monitor.

[Problem that the invention seeks to solve]

However, in such a configuration, each primary color signal R, C,
Since B cannot exchange information with each other, color-based processing cannot be performed correctly.

For example, if we consider the case of performing image motion detection based on color, this involves taking the difference between frames and determining that the image part where the difference occurs is moving. In this case, for example, a situation may occur in which motion is detected for the red and green primary color signals, but not for the blue primary color signal. In such a case, when displaying only the WJ detected part on the monitor, the red and green data will be output, but the blue data will not be output, so the color of the detected part will not be displayed. The result will be different from the original.

To avoid such drawbacks, when performing color-based processing, a processing processor (II) for each primary color signal is required.
R) 3 for each of (IIG) (IIB)
It is also conceivable to take in and process primary color signal data. However, in this case, each processing processor (lit
? ) (IIG > (IIB) 3 in each of
Arithmetic processing must be performed on all of the data for one frame and the three primary color signal data, and the processing takes three times as long, making it unsuitable for high-speed processing.

This invention improves the above-mentioned drawbacks and makes it possible to perform color-based (processing) quickly and efficiently.

[Means for solving problems]

In the present invention, a processing section is provided independently for each color signal data constituting color image data, and a coordination signal generator ``decoder'' that generates a coordination signal by synthesizing predetermined processing results of the plurality of independent processing sections. and means for feeding back the cooperation signal to the plurality of processing units, so that subsequent processing is performed based on the cooperation signal.

[Effect]

Each color signal data constituting the color image data is arithmetic-processed by each independent processing unit, but a predetermined arithmetic processing result of each processing unit is generated by a coordination signal generation means, and a coordination signal is generated. Since the cooperative signal is fed back to each processing unit, it is equivalent to communication between the processing units, and it is possible to perform motion detection, for example, based on the color of a color image.

〔Example〕

FIG. 1 shows an embodiment of the apparatus of the present invention, in which the color image data is primary color signal data of red, green, and blue.

That is, (21R), (21G) and (21B
) is the digital data R, G of the primary color signals of red, green, and blue.
and B input terminal, this input terminal (21R) (2
The data R, G and B through the input image memory section (22R”) and (21B) are respectively input to the input image memory section (22R”) (22G
') and (22B). In this example, the input image memory section (22R) (22G'') and (22
B) has a pair of frame memories MR1 and MR2, MGt and MG, respectively, so that real-time processing can be performed.
2, MBt and MB2, and switches S1 and 82 provided on the input side and output side of a pair of memories, respectively.
For example, these are alternately switched every frame, so that when input data is written into one memory, the data written previously is read from the other memory.

Human image memory (22R) (22G) and (2
Each primary color signal data R, G, and B read out from the processing section (23R), (23G) and (23
B) and undergoes predetermined processing, for example, by calculating the difference between frames for each primary color signal data R, G, and B, and detecting the motion of the color image. In addition, when calculating the difference between frames, frame memories are provided in the processing units <23R), (23G), and (23B).

Processing section (23I?) (23G) and (23B
), in the case of motion detection, the motion-detected image data part of one screen's worth of color image data, for example, "
1'' flags FR, FC, and FB are obtained and supplied to the cooperation signal generation circuit (26). In the case of the motion detection example, this generation circuit (26) is composed of an OR gate, and any one of the flags FR, FC, and FB is "1".
”, a coordination signal CO that becomes “1” is obtained, and this is transmitted to each processing unit (23R) (23G
) &bi (23B). When only the moving part is to be displayed on the screen, the coordination signal is selected from among the image data for one frame read from the human image memory section (22) 1'') (22G) and (22B). The primary color signal data of the image part where CO is "1" passes through each processing section (23R') (23G) and (23B) and is output to the image memory section (24R).
It is written to the memory of (24G) and (24B). These output image memory units (24R) to (24B) also have a pair of frame memories MR3 and MR4, MG3 and MG4, and MB3 and MB4, respectively, similarly to the human image memory units (22R) to (22B). , a switch S3 provided on each side of the pair of memories.
．． S4 is alternately switched every frame so that when data is written to one memory, data is read from the other memory.

In the case of motion detection, when only the moving part is displayed on the monitor image, the processing unit (23R)
Coordination signal CO is “1” from (23G) and (23B)
Only the screen portion data corresponding to is written to the address corresponding to the position on both sides of one memory of the output image memory section, and is read out from the memory and sent to the output end (25R).
(25G) and (25B).

In this case, the output image memory sections (24R) (24G) and (24G) of the screen portion where no motion was detected are
For the data B), specific color data, for example, data of all "0" is written, and the data is displayed in that specific color, for example, black on the screen.

As described above, when motion is detected for any one of the primary color signal data of red, green, and blue, the primary color signal data for which no motion was detected is also detected by the 11il signal C○. Since the primary color signal data of the screen portion is output as the moving portion of the image, the colors of the image portion whose motion has been detected are displayed correctly.

In addition, since the above example is a case where the motion detection process is performed by the processing section, the 18-tone signal generation circuit (26) is configured with only an OR circuit, but this cooperative signal generation circuit (26)
is not limited to the OR circuit, but also the processing parts (23R) to (23B)
It can be made according to the processing at.

FIG. 2 shows an example of the cooperative signal generation circuit (26) in that case, in which flags FR, FG, and FB obtained as various processing results are supplied to an AND gate (261), and these three
The two flags are ANDed and the output AND is provided to the selector (260).

Also, flags FR and FC are at the OR gate (262'),
Flags FG and FB are supplied to the OR gate (263), and flags FR and FB are supplied to the OR gate (264). And flag F from ORGATE (262)
The OR gate outputs of R and FC and the OR gate outputs of flags FG and FB from the OR game-1-(263) are supplied to the OR gate (265), and as a result, the OR gate outputs from the OR game-1-(263) are supplied to the OR gate (265).
65), the OR gate output OR of the three flags FR, FC and FB is obtained, and this is supplied to the selector (260).

Also, or gate (262) (263) (2
The output of 64) is fed to an AND gate (266).

Therefore, from this AND gate (266), when any two of the three flags FR, FC, and FB become "1", an output that becomes "1" is obtained, which is the majority output MAJ, which is selected. (260).

Then, the selector (260) is sent to the processing units (23R) to (23
A selection signal SEL corresponding to the processing content in B) is supplied,
The logical product output AND is used as the coordination signal CO.

Either one of the logical sum output OR and the majority output MAJ is obtained, and the processing units (23R) to (23B)
The subsequent processing is performed based on the cooperation signal CO.

Note that the processing result signals from the processing units (23R) to (23B) are not limited to flags FR, FC, and FB; for example, data indicating the level of each primary color data is output, and data is output according to the level ratio of the three primary color signals. processing section (23R) to (23B
), this invention can also be applied to cases where the data to be output is determined and the output color on the screen is determined.

Note that the color signal data handled is not limited to primary color signal data, and may be digital data such as color difference signals RY and BY, I, and Q signals.

〔Effect of the invention〕

In this invention, a plurality of color signal data constituting color image data are processed for each color signal data, but information from each color signal processing unit is combined to generate a cooperative signal, and this cooperative mfε Since it is possible to perform processing using numbers, it is possible to perform processing according to the color.

[Brief explanation of the drawing]

Fig. 1 is a block diagram of an example of the device of this invention, Fig. 2 is a block diagram of an example of its essential parts, Fig. 3 is a block diagram of an example of an image processing device, and Fig. 4 is a block diagram of a possible color image processing device. It is a figure showing an example. (231?) to (23B) are processing units for each color signal, (
26) is a cooperative signal generation circuit. Figure 2 of the lock diagram

Claims (1)

[Scope of Claims] A processing section provided independently for each color signal data constituting color image data; and a cooperative signal generation means for synthesizing predetermined processing results of the plurality of independent processing sections to obtain a cooperative signal. , means for feeding back the cooperation signal to the plurality of processing units, and further processing is performed based on the cooperation signal.