JPS62120781A - Transmission system for color picture information - Google Patents

Abstract

PURPOSE:To reduce drastically the quantity of a picture information to be transmitted by specifying a part that is transmitted with full color and a part otherwise transmitted in a picture, erasing unnecessary parts, and transmitting. CONSTITUTION:An inputted color-picture information is stored in a picture information memory in a personal computer 3 mentioned above, and at the same time, the inputted color picture is displayed in a monitoring color display 4. As watching the color picture displayed in the display 4, the operator on the transmission side executes an area-specifying to discriminate an area necessary to be transmitted with full color from those not so necessary in accordance with the purpose of the information desired to be transmitted by inputting from a keyboard 5. Then the operator selects one of the colors R, G, and B to be used for the parts specified as the area to be transmitted with single color. A picture processing unit 31 in the computer 3 executes the processing based on the above-mentioned specifying. When a transmission is commanded, a picture information is transmitted to the external through an external communication unit 35.

Description

Detailed Description of the Invention Technical Field The present invention relates to a color image information transmission method, and in particular to a color image information transmission method suitable for efficient transmission of color images 1'9 over a narrowband line such as a telephone line. % Traditionally, when transmitting color images in design-related industries, etc., the entire image was transmitted as is without any special processing. Color transmission without color selection will be referred to as "full color transmission."

However, if you think about it, even if you say that you are transmitting a color image, you will still have to use full color for non-main parts of the image or parts that you want to actively erase (blur), etc., in order to reduce the amount of information to be transmitted. It is more effective to stop transmission and use part-color transmission to shorten the transmission time. Note that the above-mentioned part-color transmission includes transmission using only one of the three element colors R, G, and H of color transmission, and transmission using a combination of any two colors.

Purpose The present invention has been made in view of the above circumstances, and its purpose is to:
The object of the present invention is to provide a color image information transmission method that allows parts other than parts that need to be transmitted in full color to be transmitted in part color.

Structure In order to achieve the above object, the present invention provides a color image information transmission device having an image memory for storing image information inputted by a color image input means, which includes means for erasing the image information stored in the image memory. By using the erasing means to erase part of the image information that does not need to be transmitted in full color, only the necessary portions of the transmitted image information are transmitted in full color, and other parts of the image information are transmitted in full color. The portion is configured to transmit only one color of R, G, or H, or a combination of any two colors.

That is, the color image information transmission method according to the present invention is as follows:
Specify the area in the image that you want to transmit in full color on the sending side, leave the information in that area as it is, and transmit the information in other areas only in one color, R, G, or H, or in any two colors. This method is characterized in that color image information is transmitted based on information in which only combination information is left and other information is deleted.

Hereinafter, the structure of the present invention will be explained in more detail with reference to Examples.

FIG. 1 shows a color image information transmission system which is an embodiment of the present invention. The configuration of this system is that both the sending and receiving sides have a personal computer (equipped with image memory and communication functions) and a color display for the image monitor.

Equipped with color image input devices such as color scanners and color cameras.

That is, the transmitting side devices have a monitor 19 image input device and 2.
Personal computer (personal computer) 3° color display 4. It consists of a keyboard 5 and a modem 6, and the receiving side devices include a monitor 11, a personal computer 12 . Color display 13. keyboard 14 and modem 15
It consists of

FIG. 2 shows the hardware configuration of the personal computer shown in the above embodiment. In FIG. 2, 31 is an image processing unit that processes color image information from the color image human-powered device 2 and outputs it to the monitor 1, 32 to 34 are a CPU, image information memory, and standard input/output interface, and 35 is a modem 6. Connectable external communication units 1 to 1 are shown.

The operation of transmitting color image information using the system as described above will be described below, taking as an example the case where an image portion that does not require full color transmission is transmitted in a single color. The operation of the brochure 1- is shown in FIG.

First, a color image to be transmitted is input using the image processing unit 2 on the transmitting side (step 21). In this case, the part that performs full color transmission of color images.

It is not necessary to distinguish between parts that carry out single-color transmission. Next, the input color image information is stored in the image information memory in the personal computer 3, and the input color image is displayed on the monitor color display 4 (step 2).
2).

At this point, the transmitting operator, while looking at the color image displayed on the monitor color display 4, inputs from the keyboard 5 the area that needs to be transmitted in full color and the purpose of the information to be transmitted. Then, for the area specified to be transmitted in a single color, a selection is made as to which color to use among R, G, and B (step 23).

When the operator finishes specifying the area and specifying R, G, and B for single color transmission using the keyboard 5, the image processing unit 31 in the personal computer 3 performs processing based on the specification (step 211).

This process erases the color information in the image information of the area excluding the area specified to be transmitted in pull color for the two unselected (remaining) colors. The color image is displayed on the color monitor 4 again.

When the above-mentioned processing is completed, the operator checks the color image output on the monitor and determines whether or not to transmit (a) (step 25). If instructed, the image information is transmitted to the outside via the external communication unit 35 (step 26).

FIG. 4 shows a received image 10 transmitted through the above-described processing.
This diagram schematically shows the area in which the diagonal lines (■) are transmitted in full color.

Each of the surrounding areas shows a portion transmitted in a single color.

In the above embodiment, for parts of the image that are not transmitted in full color, the entire part is transmitted in a single color. It is also possible to transmit by changing the . In this case, although it is a single color transmission, it is possible to transmit a color image without drastically reducing the amount of information.

In addition, for parts where full color transmission is not performed, R,
Display may be performed using a combination of any two colors among G and B. In this case, color transmission is possible without drastically changing the image image.

Effects As described above, according to the present invention, when transmitting color image information, the content of the image to be transmitted can be substantially changed by specifying parts of the image to be transmitted in full color and parts not to be transmitted in full color. Since the amount of image information to be transmitted as a whole is significantly reduced without deterioration, the transmission speed of color images can be substantially increased, which will greatly improve the color image transmission in the design industry and related industries. This has the remarkable effect of bringing about great benefits in improving efficiency.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a color image transmission system showing an embodiment of the present invention, FIG. 2 is a diagram showing the internal structure of a personal computer which is the main part of the system, and FIG. 3 is a flowchart of the operation of the embodiment.
FIG. 4 is a diagram schematically showing the transmitted image. 1.11: Monitor, 2: Image input device, 3, 12: Personal computer, 4, 13: Display, 5, 14: Keyboard, 6. Is: Modem, 10: Received image. Figure 2 Figure 4 Figure 3

Claims (1)

[Claims] (1) In a color image information transmission device having an image memory for storing image information input from a color image input means, means for erasing the image information stored in the image memory is provided, and among the transmitted image information, For parts that do not need to be transmitted in full color, the erasing means erases part of the color information, so that only the necessary parts of the transmitted image information are transmitted in full color, and the other parts are transmitted in R, G, B. A color image information transmission method characterized by transmitting only one color or a combination of two colors.