JPH01177272A - Picture processor - Google Patents

Abstract

PURPOSE:To designate plural types of working for the picture of one original with a small capacity of a memory by providing a memory means to be able to store plural editing areas and changing the combination of the surface to write the editing areas in accordance with the type of the designated working. CONSTITUTION:An editing area designated by a digitizer 13 is stored into bit map memories 9a-9c. The bit map memories 9a-9c have a capacity to store the area for three surfaces of the picture of an original and the editing area is stored into the surface determined beforehand in accordance with the type of the designated working. At such a time, the type of the working and the memory surface are not corresponded to 1:1 and the type of the working is expressed by the combination of the memory surface. Thus, without increasing the capacity of the memory, plural working types can be set for one original.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an image processing device that reads image information and performs various image processing, and particularly relates to an image processing device that reads image information and performs various image processing. It relates to a processing device.

[Conventional technology]

Generally, in an image processing apparatus, an image on a document is read by an image processing apparatus and converted into an electrical image signal. After various image processing is performed on this image signal, it is output as an image by an image output device such as a laser printer.

In such an image processing apparatus, conventionally, a part of the original image is designated as an area and processed differently from other areas, as disclosed in JP-A-60-242480 and JP-A-60-2131.
It is disclosed in Publication No. 68 and the like. When such an image processing device is applied to a copying machine, editing such as deletion, extraction nine-color conversion, bank shading, etc. can be performed only on the image within a designated area.

In such an editable copying machine, it is necessary to specify an area to be edited. For this reason, normally, a closed area is designated by manually inputting coordinates on the document using numerical keys or a digitizer. When specifying this closed area, for example, you can specify the coordinates of two diagonal vertices to set a rectangular area, or you can sequentially specify multiple points to set a polygonal or arbitrary-shaped area. things are being done.

The area set in this way is stored in a storage device such as a bitmap memory, and during a copying operation, while reading the original image, the contents of the storage device in which the area is stored are read and specified in synchronization with this. Image processing is performed only on the area.

[Problem to be solved by the invention]

In such an editable copying machine, editing such as deletion, extraction one-color conversion, and neutral shading can be performed on the subject area, but only the area information is stored in the storage device. , the type of processing is stored separately. Therefore, it was only possible to specify one type of processing for one document.

In order to make it possible to perform multiple types of processing on one document, it is conceivable to use a storage device that has a number of pages corresponding to the number of processing types, and to store areas for each processing type. However, in this case, if the types of processing increase,
There was a problem in that a device with a large capacity was required and the cost of the device was high.

The present invention was devised to solve the above-mentioned problems, and it is possible to set a plurality of processing types for one document without significantly increasing the capacity of the storage device. The purpose is to

[Means to solve the problem]

In order to achieve the above object, the present invention provides a manual means for specifying the coordinates of an editing area and a type of processing, a storage means having a plurality of memory surfaces, and a type of processing based on the coordinates of the editing area. means for setting bits in an area corresponding to the editing area of the storage means to a specific state using different combinations of surfaces depending on the situation; image manual means for reading the image of the original; and image processing means for performing the designated type of processing on the image in the editing area of the image of the manuscript based on the read content. shall be.

[Effect]

The editing area specified by a coordinate input means such as a digitizer is stored in a storage means such as a storage bitmap memory. In the present invention, the storage means has a capacity to store an area corresponding to the number of planes of the image of the original, and the editing area is a reserved area of the storage means according to the specified type of processing. is memorized. At this time, there is not a one-to-one correspondence between the type of processing and the storage surface of the storage means, and the type of processing is represented by a combination of storage surfaces. therefore,
For example, if the storage means is 3 sides, the type of processing is 8.
Even the type can be specified. When outputting an image, the contents of the storage means are read in synchronization with the reading of the original. This content includes not only area information but also processing type information, so if you process the document image based on this information, multiple areas specified in one document can be processed. It becomes possible to perform different processing on each.

〔Example〕

DETAILED DESCRIPTION OF THE INVENTION Hereinafter, features of the present invention will be specifically described based on examples with reference to the drawings.

FIG. 1 shows a diagram of an image processing apparatus according to an embodiment of the present invention.

In the figure, reference numeral 1 indicates an image input device for reading an image of a document. As shown in FIG. 2, this image input device 1 irradiates a document (not shown) placed on a platen glass la with a light source 1b, and reflects light from the document with mirrors lc, ld, and le. The lens If focuses the image on the image sensor 1g, and this image sensor 1g
I am trying to get an image signal from. The light source 1b and the mirror IC are attached to the full-speed carriage 1h, and the mirror 1
d and le are attached to a half-speed carriage 11. Then, move the full speed carriage 1h to the platen glass 1a.
The half-speed carriage 11 is moved in the same direction at half the speed of the full-speed carriage 1h to read the image on the document.

The image signal from the image input device 1 is converted into a digital signal by an A/D converter 2, and halftone images such as photographic originals are converted to digital signals through a dither processing circuit 3, and binary images such as text originals are converted into digital signals. It is supplied to the image processing circuit 5 via the value converting circuit 4. Connected to this image processing circuit 5 is a RAM (Random Access Memory) table 6 in which function codes indicating types of processing such as deletion, extraction two-color conversion, and back shading are stored in advance. Each of the above-mentioned processes is performed according to the function code read from the machine. Note that 7 is a mesh generation circuit for generating a mesh pattern during back halftone meshing.

The image signal processed by the image processing circuit 5 is supplied to an image output device 8 such as a laser printer and output as an image. That is, copying is performed with the editing power <Mh applied to the original image.

Furthermore, 9a, 9b, and 9c are bitmap memories for three pages for storing editing areas. Note that the term "one page" here corresponds to one page of the image of the document read by the image processing apparatus 1. A drawing device 10 is connected to the bitmap memos 1J9a, 9b, and 9c. This drawing device 1o has a bitmap memory 9
A, 9b, and 9c are provided for high-speed writing and reading, and are usually CRTC (cathode ray tube controller), such as 80634g4 (newly manufactured by Hitachi).
A bond collection circuit dedicated to drawing is used.

A CPU (central processing unit) 11 is connected to this drawing device 10 .

Also, the outputs 111 of the bitmap memories 9a, 9b, 9c! A gate 12 is connected between the IJ and the drawing device 10. This gate 12 is open when the drawing device 10 is in the manual mode, and the drawing bag ff1l
o is a bitmap memo! You can refer to the contents of J9a, 9b, and 9c.

CP Ull writes function codes into the RAM table 6 and controls the drawing device 1o, and writes the function code into the RAM table based on instructions from the digitizer 13 that specifies the area of the document to be edited and the type of processing. 6, or bitmap memo 1J9a to 9c.
An instruction is given to the drawing device 10 as to which area of the screen should be filled in.

The RAM table 6 includes the above-mentioned bitmap memory 9a.
, 9b, 9c or the CPU II is selected by the multiplexer 14 and supplied as an address signal, and the output of the RAM table 6 is supplied to the image processing circuit 5 as a function code indicating the type of processing.

Further, a gate 15 is provided between the RAM table 6 and the CPU 11, and is opened except during the reading period of the original image, so that the contents of the RAM table 6 can be rewritten by the CPU Ull.

The above-mentioned digitizer 13 has a flat surface the size of, for example, a size of paper, and obtains the position pressed by a pen or the like as coordinate data, and as shown in FIG. An area specification area ER for specifying the type of processing and a function specification area EF for specifying the type of processing are provided. A plurality of windows 13a to 13f are formed in the function designation area EF in accordance with the type of processing and the like. Then, when the area specification area ER is pressed, the CPU 11
The coordinate data is processed as area information, and when any of the windows 13a to 13f of the function designation area EF is pressed, the coordinate data is processed as function information.

The digitizer 13 is provided, for example, on the upper surface of a platen cover IJ that covers the platen glass 1a of the image input device I in an openable and closable manner, as shown in FIG.

Next, regarding the operation of the above-mentioned image processing apparatus, FIG.
) An example will be described in which the image in the first area P of a document is edited into an image in which the image in the first area P is shaded and the image in the second area Q is deleted.

First, a manuscript to be edited is placed on the digitizer I3, and the outer periphery of the area to be shaded is indicated with a pen.

In the example of FIG. 4, the characters rAj and rBj are surrounded. At this time, the digitizer 13 is operated in continuous manual mode,
As long as the tip of the pen that indicates the location or target is in contact with the coordinate surface of the digitizer 13, the coordinates are continuously read. The location and ring data of the outline of the editing area designated in this way are stored in a register (not shown) in the CP Ull.

Next, if you press the portion corresponding to the shaded portions of the windows 13a to 13f in the function designation area EF of the digitizer 13,
The type of processing is stored in a register within the same < CP Ull.

Next, use the pen to similarly indicate the outer periphery of the area to be deleted. In the example of FIG. 4, after enclosing the characters rGJ, deletion is designated as the type of processing. These area information and processing type are also stored in registers within the CPU II.

In addition, in the above example, the editing area was continuously enclosed to specify an arbitrary area, but as mentioned earlier, 2
You can also specify only the vertices to create a rectangular editing area.

Next, this document is placed on the platen glass la of the image processing apparatus 1, and then image reading is started. In this embodiment, prior to actual image reading, a pattern, that is, an outline of the outer periphery of the editing area is written on the surface of the bit map memo 1J9a, 9b, 9c corresponding to the type of processing.

Next, fill in the inside of the outline.

That is, the bit at the address corresponding to the inside of the editing area of the bitmap memories 9a, 9b, and 9c is set to a predetermined state, for example, "1". These drawings are performed at high speed by the drawing device 10 based on a known algorithm based on instructions from the CPU Ull.

In this embodiment, the bitmap memory 9a is used to write areas according to the type of processing.

The combination of surfaces 9b and 9c is changed.

In this example, three-sided bitmap memo! J9a
, 9b, and 9c, 23 types of processing can be selected as shown in Table 1. That is, it is possible to specify eight types of processing, or editing, including a state in which nothing is done. In addition, in the table, “1
" indicates to fill in, and "0" indicates not to fill in.

(The following is a blank space) Table 1 Next, the RAM table 6 is set. That is, the correspondence between functions, numbers, and actual processing types is set. In addition,
The RAM table 6 may be set prior to drawing in the bitmap memories 9a, 9b, and 9c. An example of this setting is shown in Table 1.

As mentioned above, when the type of processing for the first area P is bank shading and the type of processing for the second area Q is deletion, the processing shown in FIGS. 5(a) to (C) As shown, for the first area P, the bitmap memory 9
a and 9C are filled out, and for the second area Q, bitmap memo 1J9c is filled out, and bitmap memo 1J9b is not filled out.

Note that the correspondence between the function number and the type of processing is not fixed, and a combination different from that shown in Table 1 can be made according to instructions from the CP Ull. For example, if the function code representing the type of processing is expressed in 8 bits, 256 types of processing can be set, and by rewriting the RAM table 6,
Any seven types of processing can be specified at the same time.

When the filling of the area is completed, the actual copying operation starts, and the scanning optical system provided in the image input device 1 is moved to read the image of the original. The signal obtained from the image human power device 1 during this reading is sent to the A/D converter 2. Image processing circuit 5 via digital processing circuit 3 or binarization circuit 4
is supplied to

In synchronization with reading this image, Bitmap Memo'J
9a, 9b, and 9c are read out, and the readout output is supplied to the RAM table 6 as an address signal via the multiplexer 14. This bit map memo!
Reading from J9a, 9b, and 9c is performed by a method called DMA (direct memory access). That is, during scanning that requires high-speed memory operation, the gates 12 and 15 are closed by a DMA control signal generated in synchronization with document scanning, and the address of the RAM table 6 is changed by the multiplexer 14 to the bitmap memory 9a, 9b.

bitmap memories 9a, 9b, 9c are switched to the 9C side, and the bitmap memories 9a, 9b, 9c are switched directly to the DMA control circuit (not shown).
Reading is performed from.

As described above, the correspondence relationship between the above-mentioned function number and the function code representing the type of processing is written in advance by the CPU 1l in the RAM table 6.

Therefore, from the RAM table 6, function codes are read bit by bit corresponding to the filled areas of the bit map memos 1J9a, 9b, and 9c.

In the image processing circuit 5, processing corresponding to the function code from the RAM table 6 is performed. That is, in this embodiment, in the first area P, the image signal from the dither processing circuit 3 or the binarization circuit 4 is shaded using the halftone signal from the halftone generation circuit 7. , in the second area Q, the image signal is deleted.

The image signal after image processing is supplied to the image output device 8,
The first area P of the image of the document as shown in FIG. 4(b)
The image is shaded, and the image in which the image in the second area Q is deleted is output.

In the above embodiment, a dedicated integrated circuit is used as the drawing device 10, but the drawing device 10 is not limited to this, and a device capable of high-speed operation can be used as the CPU Ull to write the bitmap memo 1J9a, 9b. .

Writing and reading to 9C may also be performed.

〔Effect of the invention〕

As described above, according to the present invention, a storage means capable of storing editing areas on a plurality of sides is provided, and the combination of sides on which editing areas are written is changed depending on the type of specified processing. This allows multiple types of processing to be specified for the image of one document. Moreover, as a storage means for area storage, the number of surfaces is smaller than the type of machining.
That is, it is possible to use a storage device for walking distance, and the cost of the device can be reduced.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of an image processing device according to an embodiment of the present invention, FIG. 2 is a schematic sectional view showing an image processing device and a digitizer, FIG. 3 is a schematic plan view of the digitizer, and FIG.
The figure is an explanatory diagram showing the relationship between the original image and the image after image processing, and FIG. 5 is an explanatory diagram schematically showing the bit pattern stored in each bitman memory. 1: Image human power device 5: Image processing circuit 8: Image output device 9a to 9C two-bit map memory 1
0: Drawing device 11: cPU 13: Digitizer patent applicant Fuji Xerox Co., Ltd. Agent
Person Masu Kobori (and 2 others) Figure 2 Flute 3 Figure R

Claims (1)

[Claims] 1. An input means for specifying the coordinates of the editing area and the type of processing; a storage means having a plurality of storage surfaces; and a combination of different surfaces depending on the type of processing based on the coordinates of the editing area. means for setting bits in an area corresponding to the editing area of the storage means to a specific state; image input means for reading an image of the original; and means for reading out the contents of the storage means in synchronization with reading the image of the original. and,
An image processing device comprising: an image processing unit that performs the specified type of processing on an image in the editing area of an image of a document based on the read content.