JPS63144056A - Image signal processor - Google Patents

Abstract

PURPOSE:To permit the synthesis of images without alternation of image information by a method in which signals read out of an image memory for binary image signals and an additional information memory are introduced and processed by a logical gate means for a given logical computation. CONSTITUTION:Data are developed into bit images by an image processor 101, and data so developed are stored in a full-bit map memory 102. Command information and operating data are put in a controller 106 from an operation input unit 108 and output data are formed in the controller 106 and stored in a composite information memory 103. By the controller 106, the memory 102 and the memory 103 are excited and print-out is practiced by a laser beam printer 105 through an AND and OR gate 104. If data for one line are already sent out, address is advanced, and when the output of data for one line is ended, the control process is finished.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an image signal processing device having an image synthesis function.

[Prior Art] In printers that store bit image data and print out data, shading processing, whitening processing,
Or when performing data extraction processing within a specified range,
Image information that has already been stored in memory is subjected to predetermined processing to meet the purpose, then the processed information is stored again in memory, and the stored data is printed out. . Furthermore, in other conventional apparatuses, in order to execute the various processes described above, logical operations are performed by software immediately before image output, and printout is performed.

[Problems to be Solved by the Invention] However, in such conventional printers, in order to restore the processed data, it is necessary to recreate the image information in the memory or input the image information again. The drawback was that it required further processing. In addition, some types of printers have the disadvantage of requiring a long processing time due to the need to perform logical operations using software immediately before outputting.

SUMMARY OF THE INVENTION Therefore, in view of the above-mentioned points, an object of the present invention is to provide a signal processing device that enables image synthesis without changing the image information itself stored in an image memory and speeds up the processing time for image synthesis. It is about providing.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides an image memory that stores a binary image signal, additional information storage means that stores specific image information, and an image memory and additional information. It is provided with logic gate means for introducing the signal read from the storage means and performing a predetermined logical operation, and obtains a binary composite image signal from the logic gate means.

[Function] By introducing the image data read from the image memory into the logic gate means and performing signal processing by hardware, processing time can be shortened, and the processing time can be reduced, as well as printing with halftones, halftones, specified area printing, etc. This enables a wide variety of image processing.

[Example] Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram of an embodiment according to the present invention.
Reference numeral 101 in the figure is an image processing device that converts image information obtained from an information processing device on the host device side or an image reading device such as a scanner into a bit image and outputs the bit image. 1
02 is a full bitmap memory that stores one page (or more) of bit image data from the image processing device 101. Reference numeral 103 denotes a composition information storage device that stores additional image information for performing image composition on the data stored in the full bitmap memory 102. Reference numeral 104 denotes an AND or OR gate (or equivalent) for synthesizing the image information from the full bitmap memory 102 and the image information from the composite information storage device 103. 105 is a laser beam printer for printing the image data output from the AND/OR gate 104 on recording paper. Reference numeral 106 is a control device that controls the operation of each of the above-mentioned parts, 107 is a command input device that inputs and processes commands sent from a host device, scanner, etc., and 108 is an operation input device that allows input by the user himself.

FIG. 2 is a flowchart showing the control procedure to be executed by the control device 106.

First, in step 5201, the image processing device 101 develops data input from a host device, scanner, etc. into a bit image, and the full bitmap memory 10
Store the expanded data for 2.

In the next step 5202, command information (information regarding processing such as resolution, outline, shading, halftone, etc.) from the host device, scanner, etc. is sent to the command input device 10.
More human power than 7.

In step 5203, operation data designated by the user is input from the human operator device 108.

After that, the command input device 107 and the manual operation device 1
Based on the data input via 0B, the control device 106
creates data to be output to the composite information storage device 103 (step 5204), and stores the created data in the composite information storage device 103 (step 5205).

Next, the control device 106 controls the full bitmap memory 10
2 and the composite information storage device 103 are activated (step 5206), and the laser beam printer 105 is caused to print out via the AND and OR gate 104 (step 520?).

Thereafter, the control device 106 determines whether one line of data has been output (step 5208), and if the one line of data has not been output, the full bitmap memory 102 and the full bitmap memory 102 are instructed to output the next address data. The composite information storage device 103 is activated again. Furthermore, if one line of data has already been output, processing is performed to advance the address (step 520).
9).

Next, it is determined whether data output for one page has been completed (step 5210), and if so, the control process is terminated. On the other hand, if the data output for one page has not been completed, the process advances to step 5211, and it is determined whether or not there is a need to change the contents of the composite information storage device 103. As a result, if necessary, the process proceeds to step 5204; otherwise, the process proceeds to step 5206.

Note that the present invention can be applied not only to the above-described laser beam printer 105 as an output device but also to other display output devices and the like.

Furthermore, depending on the information stored in the composite information storage device 103, it is possible to output images with various variations such as form overlay, underlining, and paging in addition to halftone processing and whiteout processing.

FIG. 3 is a schematic diagram showing a process for executing such whitening processing.

When performing whitening processing, blank data is stored in the composite information storage device 103. Specifically, if the composite information storage device 103 has a capacity for one page, information as shown in FIG. 3 is stored. And the control device 10
6 activates the full bitmap memory 102 and the composite information storage device 106, calculates a logical product using an AND gate, and outputs the processed image data to the printer side.

FIG. 4 is a schematic diagram showing the process for performing paged processing. When performing pagination processing, the composite information storage device 103 stores information as shown in FIG. Multiply them, find the logical sum, and output the obtained composite image information.

When underlining or shading, pagination can be performed in the same way as processing.

[Effects of the Invention] As described above, according to the present invention, various variations can be given to the composite output image by appropriately changing the data stored in the additional information storage means. A versatile image signal processing device can be obtained without affecting image information in any way and without reducing the synthesis processing speed.

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing one embodiment of the present invention, Fig. 2 is a flowchart showing the control procedure of the embodiment shown in Fig. 1, and Figs. 3 and 4 respectively show specific uses of this embodiment. It is a schematic diagram showing an aspect. 101... Image processing device, 102... Full bitmap memory, 103... Composite information storage device, 104... AND, OR gate, 105... Laser beam printer, 106... Control device, 107... Command input device, 108... Operation input device. Figure 2 Figure 3

Claims (1)

[Scope of Claims] An image memory for storing a binary image signal, additional information storage means for storing specific image information, and a signal read out from the image memory and the additional information storage means is introduced into a predetermined manner. Logic gate means for performing a logical operation, wherein a binary composite image signal is obtained from the logic gate means.