JPH053944B2 - - Google Patents

Description

[Detailed description of the invention]

[Industrial Application Field] The present invention relates to a so-called drawn image communication device configured to be able to transmit and receive drawn images input by hand on a drawing pad or the like together with audio through a general telephone line, and furthermore, More specifically, the present invention relates to a graphic image communication device which has a conventional configuration and also has a function of inputting and transmitting/receiving a ready-made image. [Prior Art] A drawn image communication device has been developed that is configured to transmit and receive handwritten drawn images together with audio input from a telephone using a normal telephone line. Such a drawing image communication device not only inputs and outputs audio signals using a telephone as in the past, but also converts a drawn image input by hand onto a drawing pad or the like into a digital image signal and transmits the signal. . At this time, the audio signal and the image signal are multiplexed and both are transmitted and received simultaneously through the telephone line. The signal output to the telephone line in this way is received by the other party, and is separated into an audio signal and an image signal, and the image signal is displayed on a display device such as a CRT display.
The audio signal is output as audio from the telephone. [Problems to be Solved by the Invention] Now, such conventionally developed drawn image communication devices have only a drawing pad for inputting drawn images by hand as an image input device. There is a slight inconvenience in that it is not possible to send images that have already been created, such as hand-drawn images or simple printed materials, to the communication partner. As a solution to these difficulties, a configuration may be considered that includes an image reading device, for example, a so-called scanner, which is mainly used in facsimile devices. On the other hand, for hand-drawn images that are input from a drawing pad, for example, by providing a switch to specify the color, the entire drawn image or partial lines can be input in different colors, displayed, and sent. A device has been developed to obtain However, in the image reading device described above, the image input is performed in two colors, black and white, so one is input in color and the other is in black and white.
An imbalance has arisen in that one device can only perform black and white input and display, while the other device can only perform black and white input and display. [Means for Solving the Problems] The present invention has been made in view of the above circumstances, and by specifying a color when inputting an image from an image reading device, the background of the image and the contrast between the image can be distinguished. An object of the present invention is to provide a drawn image communication device configured so that drawn line portions can be input as different colors. The present invention provides a drawing image input device for inputting a hand-drawn image, an image reading device for optically reading the image and outputting a binary image signal, and a color image reading device having a page for storing image signals of each of three primary colors. In a drawing image communication device comprising a video memory, an operation button for specifying each color of the background and drawn lines of the image read by the image reading device, and a binary image signal given from the image reading device as it is, or means for inverting and storing it in each color page of the color video memory; means for making all the stored contents of each color page of the color video memory black or white; and the background of the image specified by the operation button. The binary image signal from the image reading device is stored as it is or inverted in accordance with the color of each drawn line, and is stored in each color page of the color video memory. The present invention is characterized by comprising means for controlling both means so that all the stored contents of each color page are rendered black or white. [Operation] The color of the background and drawn lines of the image read by the image reading device is specified using an operation button for specifying the color.
When a color is specified, the binary image signal from the image reading device is stored as is or inverted in the page of each color in the color video memory. Also, all of the stored contents of each color page of the color video memory become black or white. Therefore, depending on the storage contents of the color video memory, it is possible to display color or black and white images. [Example] Hereinafter, the present invention will be described in detail based on drawings showing examples thereof. The figure is a block diagram showing the configuration of a graphic image communication device according to the present invention. The telephone 1 is connected to the multiplexing/demultiplexing circuit 56 of the control unit 5, and connects the telephone line with the other party of communication,
It is used for voice input and output, and also functions as a telephone by itself. Scanner 2 is an image reading device that optically reads an already drawn image or a relatively simple printed matter using an image sensor, converts it into an electrical signal in the form of a dot pattern, and outputs the electrical signal. is a microprocessor 5 which is an image signal processing device.
3 is provided to an interface 54 connected to 3. Note that the scanner 2 normally reads an image drawn with black lines on a white background as a binary signal in which white parts are "0" and black parts are "1". and,
When this is displayed on a color monitor television 4, which will be described later, without specifying a color, the "1" portion is displayed by emitting light, and an image with white lines drawn on a black background is displayed. The drawing pad 3 is an interface 52 of the control section 5.
It converts handwritten images into electrical signals using, for example, a pressure-sensitive sheet, and outputs the electrical signals to the interface 52. That is, the hand-drawn image drawn on the drawing pad 3 with the input pen is X,
Converted into signals of Y (representing the moving distance at each sampling timing in the X-Y coordinate set on the drawing pad 3) and Z (representing whether or not the input pen is in contact with the drawing pad 3). and output to the interface 52. The drawing pad 3 includes an operation button 31 for specifying and inputting the color of the lines of the handwritten image (8 colors as described later), and display lamps 32, 3.
3 are provided. Further, as will be described later, the operation button 31 can store the background of the image read from the scanner 2 and the image itself, that is, the drawn lines of the image, in the RGB memory 51 as separate color displays. The color of the drawn line is specified in accordance with the instruction to turn on the display lamps 32 and 33. The color monitor television 4 displays a drawn image inputted by hand from the drawing pad 3 or an image inputted from the scanner 2, and also displays an image transmitted from the other party via the telephone line 6. Specifically, the image signal of the hand-drawn image input from the drawing pad 3 is processed in the same way as in the conventional drawing image communication device, and the image signal input from the scanner 2 is processed by the drawing pad 3 as described above. When a color is specified using the operation button 31, it is processed into R, G, B, and three-color video signals and temporarily stored in each color page of the RGB memory 51. The stored contents of the page are synthesized and displayed on the color monitor television 4 for color display. If the image signal from the other party inputted through the telephone line 6 is displayed in color, it is stored in the corresponding color page of the RGB memory 51, and if it is displayed in black and white, the same black and white signal is stored. It is stored in all pages of each color in the RGB memory 51. Next, the configuration of the control section 5 will be explained. RGB memory 51 is microprocessor 53
The video signals of each color corresponding to each of the three primary colors given from the corresponding color page (R.
The image is displayed in color by storing it in a storage area (in the GB memory 51) and outputting the composite image to the color monitor television 4 according to instructions from the microprocessor 53. The modem is a modem for transmitting and receiving digital image signals through the telephone line 6. The demultiplexing circuit 56 multiplexes the modulated image signal provided from the macroprocessor 53 via the modem 55 and the audio signal input from the telephone 1 and outputs the multiplexed signal to the telephone line 6. The modulated signal is separated into an audio signal and a modulated image signal, and the signals are provided to the telephone set 1 and the modem 55, respectively. The microprocessor 53 processes each image signal, is the control center of the control section 5, and is in charge of processing image signals input from the interfaces 52, 54 or the telephone line 6. Regarding the operation of the apparatus of the present invention configured as described above, the microprocessor 53 shown in the table transfers the image signal given from the scanner 2 to the RGB memory 51.
The following description will be made with reference to a conversion table showing the processing status of an image signal into RGB and three-color video signals when storing the image signal in a video signal. In the table, "D" indicates the signal as it was read by the scanner 2, and "" indicates the inverted signal of the signal read by the scanner 2. In other words, the "1" dot (corresponding to the black part in the original image) is the inverted signal of the signal read by the scanner 2. “0” dots (corresponding to the white part in the original image) and “0” dots mean signals that are inverted to “1” dots, and “1” means that all dots are “1”. ” and “0” respectively represent that all dots are “0”.

【table】

〔effect〕

As described in detail above, the drawn image communication device of the present invention is capable of easily inputting existing images in color, transmitting and receiving them, and displaying them on a display device with a relatively simple device configuration. Ru.

[Brief explanation of drawings]

The drawing is a block diagram showing the configuration of the image communication device of the present invention. 1...Telephone, 2...Scanner, 3...Drawing pad, 4...Color monitor television, 5...Control unit, 51...RGB memory, 53 Microprocessor.

Claims (1)

[Scope of Claims] 1. A drawn image input device for inputting a hand-drawn image, an image reading device for optically reading the image and outputting a binary image signal, and a page for storing image signals of each of the three primary colors. A drawing image communication device comprising: a color video memory having a color video memory; an operation button for specifying the color of each of the background and drawn lines of the image read by the image reading device; and a binary image signal provided from the image reading device; means for storing the contents as they are or inverted in each color page of the color video memory; means for rendering all the stored contents of each color page of the color video memory black or white; Binary image signals from the image reading device are stored as is or inverted in accordance with the respective colors of the background and drawn lines of the image, and are stored in pages of each color of the color video memory, and the color is further changed according to the specified color. and means for controlling both means so that all the stored contents of each color page of the video memory are rendered black or white.