JPH0292086A - Electronic equipment - Google Patents

Abstract

PURPOSE:To identify whether picture reading is in the color mode or a monochroic mode automatically accurately by using an identification means so as to identify whether a picture is a color picture or a monochroic picture based on input picture information and adding. the picture reading. CONSTITUTION:A signal outputted from a J-K flip-flop 4, that is, mode information is identified. If the logic is logical '1' since the mode information is in the color mode, the content of a block. No. 1 in a RAM 6b is set to '55'. Moreover, when the logic is logical '0', it represents that the mode information is the monochroic mode, the content of the block No. 1 in the RAM 6b is set to '00'. A system main body 200 displays an accurate picture based on the mode information on a display section and an accurate picture based on the mode information is printed on an external printer 40 by the operation of a keyboard.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an electronic device, for example, an electronic device having a function of identifying whether an input image is a color image or a monochrome image.

[Prior Art] Conventionally, in this type of equipment, an image reading device determines whether an image is color or monochrome by operating switches in place of the user's keyboard operations on the system side.

[Problems to be Solved by the Invention] However, in conventional examples, it is difficult to determine whether an image reading device performs image processing in a color mode for color images or in a monochrome (black and white) mode for monochrome images. It will depend on the user. In other words, because the system relied solely on user operations such as keyboard operations on the system side or alternative switch switching operations, the device that was supposed to function as a color image reading device was unable to function due to user operation errors. Because the monochrome mode has been specified, the image data is input as a monochrome image, and the user is not aware of it until the monochrome image is printed by a printer, for example.

The present invention has been made in view of the above-mentioned drawbacks of the conventional example, and its purpose is to provide an electronic device that automatically and accurately identifies whether an image is being read in color mode or monochrome mode. It is in the point of doing.

[Means for Solving the Problems] In order to solve the above-mentioned problems and achieve the objectives, an electronic device according to the present invention is an electronic device having a function of identifying whether input image information is a color image or a monochrome image. There is a manual means for inputting image information from the outside, an identification means for identifying whether the image is a color image or a monochrome image based on the input image information, and an identification information is added to the image information based on the identification result. It is characterized by comprising an identification information adding means.

[Operation] According to the above configuration, the input means inputs image information from the outside, the identification means identifies whether it is a color image or a monochrome image based on the human image information, and the identification information addition means adds the identification result. Identification information is added to the image information based on the image information.

[Embodiments] Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 is a block diagram showing the video camera system of this embodiment. FIG. 2 is a block diagram schematically showing the configuration of the electronic device of this embodiment.

In FIGS. 1 and 2, numeral 1 indicates the electronic device of this embodiment. The electronic device 1 is connected via a cable 31 to a video camera 30 that inputs an image of a subject 50. Inside the electronic device 1, 100 indicates a subsystem of this embodiment. This subsystem 100 automatically determines whether the mode is a color mode or a monochrome mode based on image information input from the video camera 30, and outputs image data according to the determined mode to the system main body 200. This system body 200 controls the entire electronic device 1, and also outputs color image data or monochrome image data input from the subsystem 100 to the display unit 202, displays images in each mode on the display unit 202, and displays the image data in each mode on the display unit 202. In operation 201, the image is output to the external printer device 40 to form an image in each mode.

Here, in the subsystem 100, 2 inputs image data from a video camera 30 via a cable 31;
It shows a control circuit with a built-in A/D converter that identifies whether the image is a color image or a monochrome image. 3, 7.9 indicate signal lines for transmitting various data output from the control circuit 2. When the control circuit 2 detects a color burst signal on the image signal from the video camera 30, the signal output to the signal line 3 is changed from logic "1" to "logic".
4 indicates a flip-flop at J-.The flip-flop 4 at J- connects the signal line 3 that transmits the output signal of the control circuit 2 to the clock input terminal, and the J input terminal to ■ CC They are each connected to a power supply (+5V), and the K input terminal is grounded.Therefore, when the clock input terminal changes from logic "1" to logic "0", the output terminal Q becomes logic "1". Also 15 is J
- shows a signal line for transmitting a signal for initializing the flip-flop 4 from a CPU 6 (described later) to the flip-flop 4 in J-.

Further, 5 indicates a signal line that transmits the output terminal Q to the CPU 6 of the subsystem 100, which will be described later. 6 indicates a CPU that controls the entire subsystem 100. Therefore, the signal line 5 transmits a logic "1" signal from the output terminal Q to the CPU at the rising edge when the clock input terminal changes from logic "1" to logic "0". CPU6
The CPU 6 detects that the image data to be captured this time is in color mode when the signal inputted from the signal line 5 is logic "1".Furthermore, the CPU 6 detects that when the signal inputted from the signal line 5 is logic "0", It is detected that the image data to be captured this time is in monochrome mode. After detecting whether the CPU 6 is in color mode or monochrome mode, control circuit 2 outputs serial image data to signal line 7.

Here, 6a is built in the CPU 5, and the subsystem 10
4 shows a ROM that stores a control program for the entire 0, an error processing program, a program according to a flowchart shown in FIG. 4, which will be described later, and the like. Also, 6b is R
RA used as a work area for various programs stored in OM6a and a temporary save area during error processing
It shows M. 8 is a serial/parallel (hereinafter referred to as rS/PJ) that converts serial image data into parallel data.
) conversion register.

The control unit 2 transmits a signal via the signal line 9 to notify the CPU 6 that parallel image data has been stored in the S/P conversion register 8. 10 indicates a signal line for transmitting image data output from the S/P conversion register 8;
Reference numeral 11 indicates a parallel register that stores the contents of the image data in the S/P conversion register 8 under the control of a signal outputted from the control circuit 2 via the signal line 9. 12 is CP
A signal line for transmitting an image data read control signal from U6 to the parallel register 11 is shown. 13 is connected to the parallel register 11 from the CPU 6 via the signal line 12.
It shows a signal line that transmits image data stored in the parallel register 11 to the CPU 6 when a read control signal is output. The image data transmitted from the parallel register 11 to the CPU 6 via the signal line 13 is
It is temporarily stored in the RAM 6b in the PUa. Reference numeral 14 indicates a signal line for transmitting image data from the CPU 6 of the subsystem 100 to the system main body 200.

Here, a series of operations according to the above-described configuration are repeatedly performed between the CPU 6 and the control circuit 2. When the specified amount of data (one byte) is loaded into the CPU 6, the CPtJ6 transfers the image data temporarily stored in the RAM 6b to the signal line 1.
4 to the system main body 200, which is a central processing unit. When the transfer process to the system body 200 side is completed in this way, the signal line 15 is changed from logic "1" to logic "0" and the flip-flop 4 is initialized to J-. After this, the CPU 6 again changes the output signal to the signal line 15 from logic "0" to logic "1",
Preparations are made to identify whether the image data to be captured next time is a color image or not, and the operation ends.

Here, S/P conversion register 8 and parallel register 11
In the two-stage buffer configuration, since the transfer speed of image data passing through the signal line 31 is faster than the processing speed of the CPU 6, the processing time of the CPU 6 is gained by providing the buffer with two stages.

FIG. 3 shows the system body 20 from the CPU 6 according to this embodiment.
FIG. 2 is a diagram showing a data format of image data transmitted to the computer.

In FIG. 3, each block from No. 1 to No. n is composed of 1 byte (8 bits), and in this embodiment, the first block, that is, block No. 1, contains monochrome or color mode information. is set. Therefore block N
In each block after o, 2, image data of the mode shown in block No. 41 is stored. For example, if the content of block No. 1 is expressed as °°O'' in 16 notation, the data in all blocks following block N002 will indicate monochrome (black and white) data.Also, block N
If the content of o, 1 is "55" in hexadecimal notation, the data in all blocks following block No. 2 will indicate color data.

According to the above data format, in this example, CP
From U6 to the system main body 200, via the signal line 14,
Mode information and image data are transmitted.

Next, an automatic mode identification method using the video camera system of this embodiment will be described.

FIG. 4 is a flowchart explaining the operation of the CPU 6 of this embodiment.

First, the contents of the area in the RAM 4 for storing image data are cleared. Then, identify the signal output from the flip-flop 4 to J-, that is, the mode information (step S2). If the logic is a signal of °°1", the mode information is a color mode, so R, AMe
The contents of block No. 31 in b are expressed in hexadecimal as °゛55
” (step S3). Also, the logic is set to “O” (step S3).
”, the mode information is monochrome mode, and the contents of block No. 1 in RAMeb are set to °○O°' in hexadecimal notation (step S4).
During this time, image data is sequentially sent from the video camera 30 to the control circuit 2, and the control circuit 2 sends serial image data to the S/P conversion register 8. And S/
When one byte of image data is stored in the P conversion register 8, the one byte of image data is sent to the parallel register 11 under the control of a control signal from the control circuit 2.

At this time, the CPU 6 inputs the control signal output from the control circuit 2 to the parallel register 11 as an interrupt signal through the signal line 9. Therefore, the CPU 6 detects an interrupt signal after setting the mode information in block No. 1 in step S3 or step S4. That is, it is detected whether 1 byte of image data has been stored in the parallel register 11 (step S5).

In this way, when an interrupt signal is input from the signal line 9, an image data readout control signal is sent to the parallel register 11 (step S6). Then, the manual image data from the parallel register 11 is stored in a block in the RAM 4 (step S7). Here, when one screen's worth of image data (up to block No. n) is stored, the block No. is stored in the system main body 200 at the subsequent stage.

Data 1 is sequentially transmitted via the signal line 14 (step S8 and step S9). When the data transfer to the system main unit 200 is completed in this way, a reset signal switching from logic °°1'° to logic "0" is output to the signal line 15 in order to initialize the flip-flop 4 to J-. (step 510). Although the description is omitted in this embodiment, the system main body 200 displays an accurate image based on the mode information on the display unit 202, and also displays an accurate image based on the mode information on the external printer device 40 by operating the keyboard 201. You can print images.

As explained above, according to this embodiment, the video camera 3
Based on the image data read by o from the subject,
It is possible to automatically and accurately identify whether a read image is in color mode or monochrome mode.

[Effects of the Invention] As described above, according to the present invention, it is possible to automatically and accurately identify whether a read image is in color mode or monochrome mode.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of a video camera system according to this embodiment. FIG. 2 is a block diagram schematically showing the configuration of an electronic device according to this embodiment. FIG.
FIG. 4 is a flowchart illustrating the operation of the CPU 6 of this embodiment. In the figure, 1... electronic equipment, 2... control circuit, 3.5°7.9, 10.12, 13.14.15... signal line,
4...Flip-flop in J-, 6...CPU. 6 a-ROM, 6 b・RAM, 8・S/
P conversion register, 11...Parallel register, 30.
...Video camera, 31...Cable, 4o...Printer device, 100...Subsystem, 200...
System body, 201...Keyboard, 202...
This is the display section. 00 (16t ya)

Claims (1)

[Scope of Claims] An electronic device having a function of identifying whether input image information is a color image or a monochrome image, comprising an input means for inputting image information from the outside, and a color image or a monochrome image based on the input image information. Alternatively, an electronic device comprising: identification means for identifying whether the image is a monochrome image; and identification information adding means for adding identification information to image information based on the identification result.