JPH0248857A - Facsimile signal processing system - Google Patents

Abstract

PURPOSE:To attain white mask processing without giving any revision to a transmission original by storing a picture signal corresponding to one original read from the transmission original into a main memory, displaying a partial picture, designating the coordinate for an area desired for white mask processing and converting the data in the area into a white level data. CONSTITUTION:One transmission original is read and a picture signal D1 is stored in a main memory 2. Part of the area of the picture signal D1 is transferred to a display memory 3 and displayed on a display device 4 as a picture. When the displayed picture is at the outside of the area to be subject to white mask processing, the content of the display memory 3 is restored to the original location of the main memory 2 in response to the position movement command by the cursor key and the next area is transferred from the main memory 2 to the display memory 3 and displayed. When the displayed picture includes the area to be subjected to white mask processing, the white mask area being the content of the display memory 3 is designated based on a coordinate data designating the white mask area by pen touch on a transparent tablet 5 to apply white data conversion of the white mask area of the content of the memory 3. When a white mask end command is received, the content of the main memory 3 is transferred to the main memory 2.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a facsimile signal processing method, and more particularly to a facsimile signal masking method for masking a part of a transmitted document with white.

[Conventional technology]

In the conventional facsimile signal processing function, based on the CCITT recommendations, image signals corresponding to areas excluding the effective screen width of the transmitted document are white-masked, but image signals within the effective screen width are masked by signal processing. There were no white masks.

Therefore, when applying a white mask, the original to be transmitted must be directly corrected, or the original to be transmitted must be re-edited by separate image processing using a computer.

[Problem to be solved by the invention]

Conventional facsimile signal masking methods have the disadvantage that creating a transmission document is time consuming, as the original transmission document will not remain unless the method of directly modifying the transmission document involves making a copy of the transmission document and modifying it. . Furthermore, the method of performing image processing using a computer has the disadvantage that the scale of the processing device becomes large, resulting in high costs.

SUMMARY OF THE INVENTION An object of the present invention is to provide a facsimile signal processing system that allows the original to be sent to be used as is and does not require an expensive processing device.

[Means to solve the problem]

In the facsimile signal processing method of the present invention, a first image signal corresponding to one transmission document read from a transmission document is stored in a main memory, and one of the stored first image signals is input from a keyboard. A partial image signal corresponding to an area designation command is transferred to a display memory, an image corresponding to the partial image signal is displayed on a display device, and a transparent tablet placed on the display surface of the display device is used to The coordinate data of the area to be white masked in the image is output, and based on the coordinate data, all areas within the area specified by the coordinate data of the partial image signal stored in the display memory are converted to white data to create a converted partial image. signal, and is configured to update the first image signal stored in the main memory with the converted partial image signal, convert it into a white-masked second image signal, and send out the second image signal. be done.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram of a facsimile machine using one embodiment of the present invention.

As shown in FIG. 1, there are a document reading section 1 that reads a transmission document and outputs a first image signal D1 corresponding to one transmission document, a main memory 2 that stores an image signal D, and an image signal D1. A display memory 3 that stores partial image signals DI+ for a portion of the display.
, a liquid crystal display device 4 that displays an image corresponding to the partial image signal DI+ of the display memory 3, and coordinate data that specifies an area to be white masked in the displayed image placed on the display surface of the display device 4. A transparent tablet 5 for outputting, a keyboard 6 for instructing the transfer of the partial image signal D11, an instruction for moving the image display position on the display surface of the display device 4, and an instruction for transmitting the image signal, and a main screen according to instructions from the keyboard 6. Readout control of the partial picture signal D11 of the memory 2, movement control of the image display position of the display device 4, white mask control of the display memory 30 partial picture signal Dll based on Shobara data, and image signal D of the main memory 2
A control section 7 performs update control of the first image signal D!1 and sends out the updated second image signal D2; It includes a transmitting section 8 that encodes and sends it to the line, and a recording section 9 that records the image signal D2.

In FIG. 1, the original reading unit 1 reads the transmitted original in response to a reading instruction from the control unit 7 and outputs an image signal R corresponding to one transmitted original, and the main memory 2 stores an image signal D1. do.

In response to the area designation signal inputted from the keyboard 6, the control unit 7 instructs the reading of the partial image signal D1 of the specified area from among the image signals D1 stored in the main memory 2, and reads the partial image signal D1 from the main memory 2. The partial picture signal 1 is stored in the display memory 3.

The display memory 3 outputs the stored partial picture signal DI+ to the display device 4.
The display device 4 displays an image corresponding to the partial image signal DI+ on its display screen.

FIG. 2 is a perspective view of the facsimile machine of FIG. 1. As shown in FIG. 2, the document reading section 1 of FIG. Main memory 21 display memory 3. A main body 21 including a control section 7, an output section 8, and a recording section 9, a display device 4 mounted on the main body 21, a transparent tablet 5 placed on the display surface of the display device 4, and a keyboard 6. It consists of: When the image displayed on the display device 4 is not an area to be white masked, a position movement instruction is supplied to the control unit 7 by operating the cursor keys 23 shown in FIG. 2 on the keyboard 6, and the control unit 7 The image signal is returned to its original position in the main memory 2, the specified area of the main memory 2 is moved, and the partial image signal Dll of the moved area is transferred to the display memory 3 and displayed on the display device 4.

When the displayed image includes an area to be white masked, the second
Positions A and B of the white mask area 24 of the image on the display surface are touched from above the transparent tablet 5 shown in the figure, and the coordinate data of these positions is supplied to the control unit 7. The control unit 7 specifies a white mask area based on the coordinate data and stores it in the display memory 3.
An image corresponding to the converted partial image signal D21 obtained by converting all the image data corresponding to the white mask area into white data is displayed on the display device 4.

When receiving the white mask end instruction from the keyboard 6, the control unit 7 transfers the converted partial picture signal D21 of the display memory 3 to the main memory 2, and updates the partial picture signal D11 before conversion with the converted partial picture signal D21. As a result, the image signal D in the main memory 2
1 is converted into a white-masked image signal D2. Image signal D
2 is transmitted to the line via the transmitter 8, and is recorded by the recorder 9 if necessary.

Next, FIG. 3 is a flowchart for explaining the operation of the control section of FIG. 1.

As shown in FIG. 3, in step 31, the original to be sent is
The sheet read image signal D1 is stored in the main memory 2.

In step 32, a partial area of the image signal D1 is transferred to the display memory 3 and displayed as an image on the display device 4.

In step 33, if the displayed image is outside the area to be white masked, the contents of the display memory 3 are returned to the original location in the main memory 2 in response to a position movement instruction using the cursor keys, and the next area is moved to the main memory. It is transferred from memory 2 to display memory 3 and displayed.

In step 34, when the displayed image includes an area to be white masked, step 0 specifies the white mask area of the contents of the display memory 3 based on the coordinate data specifying the white mask area by touching the transparent tablet 5. 35, white data conversion of the white mask area of the contents of the memory 3 is performed. When a white mask termination instruction is received from the keyboard 6 in step 36, the contents of the display memory 3 are transferred to the main memory 2 in step 37, and the white mask conversion procedure is completed.

If there is no instruction to end the white mask, the operations from step 33 are repeated.

〔Effect of the invention〕

As explained above, the facsimile signal processing method of the present invention stores an image signal corresponding to one page read from a transmitted document, divides the stored image signal into a plurality of regions, displays each region, and displays the image signal in white. When you want to mask an area, specify the coordinates on the transparent tablet and convert all the image data of the corresponding area to white data from the coordinate data, thereby eliminating the need to make any changes to the sent original and requiring expensive image processing. This has the effect of realizing a facsimile machine that can perform white masking of image signals without using any equipment.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a facsimile machine using an embodiment of the present invention, FIG. 2 is a perspective view of the facsimile machine of FIG. 1, and FIG. 3 is a flowchart for explaining the operation of the control section of FIG. 1. It is. l...Original reading unit, 2...Main memory,
3...display memory, 4...display device,
5...Transparent tablet, 6...Keyboard, 7...Control unit, 8...Transmission unit,
9... Recording section, 21... Main body section, 22
...Transmission original, 23...Cursor key 24...White mask area. Agent Patent Attorney Uchihara Sound Diagram 2

Claims (1)

[Claims] The first image signal corresponding to one transmission original read from the transmission original is stored in the main memory, and the first
Of the image signals, a partial image signal corresponding to the area designation signal input from the keyboard is transferred to the display memory, an image corresponding to the partial image signal is displayed on the display device, and the image is displayed on the display screen of the display device. Output the coordinate data of the area to be white masked in the image using a transparent tablet, and based on the coordinate data, all areas within the area specified by the coordinate data of the partial image signal stored in the display memory are whitened. The first image signal stored in the main memory is updated with the converted partial image signal and converted into a white-masked second image signal. A facsimile signal processing method characterized by sending out image signals.