JPH03123273A - Method for editing picture - Google Patents

Abstract

PURPOSE:To designate an editing area and to execute the copying of an original which is wider than a coordinate input device by copying an original tentatively in a reduced size and making a reduced copy which can be placed on, and designating the editing area based on the reduced copy. CONSTITUTION:The reduced copy of an A2-size original to be the object of edititing is placed on a digitizer 5, and the editing area is designated, When the A2 size original copied beforehand is inserted again into an original read-out device, the shading out of a closed area corresponding to the editing area is executed at a bit map memory 30 by a plotting device 29 based on the coordinates inputted by the digitizer 5 beforehand.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an image editing method in a copying machine equipped with an image editing function.

[Conventional technology]

In recent years, it has become possible to not only copy the original image as is, but also to specify and delete areas of the original image.

Copying machines that perform image processing such as extraction and shading have been developed.

In such a copying machine capable of image editing, it is necessary to specify an area to be edited during the above-mentioned image editing.

When specifying this editing area, a coordinate input device called a digitizer is often used. This digitizer has approximately the same width as the platen glass on which the original is placed, and by placing the original on the digitizer and specifying the area to be edited, the coordinate data of the editing area is imported into the copying machine. It is now possible to

Generally, this digitizer is integrated with a platen cover that covers the platen glass of the copying machine main body, is pivotally attached to the copying machine main body, and can be opened and closed with respect to the platen glass on the upper surface of the copying machine main body. First, place the original on the digitizer to define the area, then place the original at a specified position on the platen glass and instruct to start copying, so that you can perform deletions, etc. on the specified editing area. A copy with the specified processing is output.

[Problem to be solved by the invention]

Since the width of the document is usually narrower than the effective surface of the digitizer, any area on the document can be specified using the digitizer.

However, in some cases, an original larger than the platen glass may be copied. For example, normally copying is performed by moving an optical system for exposing and scanning a fixed original, but instead of this, by fixing the optical system for exposing and scanning the original and moving the original. There are devices that make it possible to copy large-sized originals. Further, a document reading device exclusively for large documents may be provided separately from the document reading device provided in the main body of the copying machine.

In such a case, the original extends beyond the digitizer, making it impossible to specify an arbitrary area.

Therefore, it is an object of the present invention to make it possible to copy any area even if the original to be copied is wider than the digitizer.

[Means to solve the problem]

In order to achieve the above-mentioned object, the image editing method of the present invention reads an image of a document to obtain an image signal, outputs a reduced copy based on the image signal, and outputs an image input from a coordinate input device based on the reduced copy. storing coordinates that define the edited editing area, developing values corresponding to the editing information in a bitmap memory based on the coordinates, and reading out the bitmap memory in synchronization with this while rereading the image of the original; The present invention is characterized in that predetermined image processing is performed on the image of the document corresponding to the editing area and a copy is output.

Further, in the image editing method of the present invention, coordinates input while a part of the document is placed on the coordinate input device are stored with reference to the first coordinate system, and the other part of the document is stored at the coordinates input by the coordinate input device. Coordinates input while placed on the input device are stored with a second coordinate system as a reference, and the coordinates in the first coordinate system and the coordinates in the second coordinate system are stored as coordinates in a common coordinate system. , develops values corresponding to the editing information in a bitmap memory based on the coordinates of the common coordinate system, reads out the bitmap memory in synchronization with this while reading the image of the original document, and reads out the bitmap memory in synchronization with this while reading the image of the original document, The present invention is characterized in that predetermined image processing is performed on the image of the original document corresponding to the image and a copy is output.

[Effect]

In the present invention, when specifying an editing area and copying a document larger than the coordinate input device, the document is first reduced in size to a size that can be placed on the coordinate input device.

Then, the editing area is specified based on this reduced copy. When copying, image editing is performed based on this editing area.

Furthermore, the editing area can be set twice by placing the original vertically with respect to the horizontal coordinate input device and moving the original vertically.

In this case, the coordinates input each time are converted into coordinates in the common coordinate system. Therefore, if values corresponding to the editing information are developed in a bitmap memory based on these coordinates, an editing area corresponding to the document is obtained, and image editing is performed based on this editing area.

〔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 is a front view of the entire copying machine system to which the image editing method of the present invention is applied, and FIG. 2 is a partial perspective view of the copying machine system.

In this embodiment, the copying machine main body 1 is composed of a document reading section 2 that can read documents up to A3 size, and an image output section 3 that forms an image. A platen cover 4 is attached so as to be openable and closable.

Although not shown, the document reading section 2 includes a scanning optical system that exposes and scans a document placed on a platen glass, an image sensor that converts light reflected from the document into an image signal, and the like. The image output unit 3 also includes a thermal transfer printer or the like that forms an image on recording paper based on the image signal obtained from the image sensor.

An editing area is provided on the upper surface of the platen cover 4.

A digitizer 5 is provided to indicate the type, etc. This digitizer 5 has a plane the size of a landscape A3 size paper, for example, and obtains the position pressed with a pen or the like as coordinate data, and as shown in FIG. 3, the area to be edited is There are provided an area designation area E for designation, and a function designation area E for designation of the type of processing, etc. A plurality of windows 5a to 5f are formed in the function designation area EF depending on the type of processing and the like.

Further, on the side surface of the copying machine main body 1, there are provided a paper feed tray 5a for supplying paper into the machine, a paper discharge tray 7 for discharging paper after copying.

Further, a document reading device 8 is removably attached to the opposite side of the copying machine main body 1 from the trays.

This document reading device 8 includes a pair of transport rollers 9.10, a platen glass 11. A document conveying section 13 consisting of a platen roller 12, etc., for conveying large documents up to A1 size such as posters and design boards; a mirror 14a;
14b, lens 15. It consists of an image sensor 16 and the like, and is equipped with an imaging optical section 17 for reading a document up to A2 size and converting it into an image signal. Image sensor 1
The output of 6 is supplied to an image signal processing system which will be described later. Further, a tiltable insertion tray 18 is provided on the document insertion side of the document transport section 13, and a tiltable discharge tray 19 and a fixed discharge tray 20 are provided on the document discharge side.

Next, an image signal processing system to which the output of the image sensor 16 is supplied will be explained with reference to FIG.

An image signal from an image input device 21, which collectively shows the document reading section 2 of the copying machine main body 1 and the imaging optical section 17 of the document reading device 8, is converted into a digital signal by an A/D converter 22, and is converted into a photographic document. Halftone images such as the above are supplied to the image processing circuit 25 via the dither processing circuit 23, and binary images such as character manuscripts are supplied to the image processing circuit 25 via the binarization circuit 24. This image processing circuit 25 has a RAM in which function codes indicating types of processing such as deletion, extraction, 3-color conversion, 5-color addition, etc. are stored in advance.
A (random access memory) table 26 is connected, and each of the above processes is performed in accordance with the function code read from this RAM table 26.

The image signal processed by the image processing circuit 25 is supplied to the image output device 27 and output as an image. That is, copying is performed with the original image edited.

Further, the output from the binarization circuit 24 is transmitted to the serial/parallel conversion circuit 2
8 to the drawing device 29, and this drawing device 2
9, the value corresponding to the editing information is stored in bitmap memory 3.
Written to 0.

The drawing device 29 is provided to write and read data into and from the bitmap memory 30 at high speed.
An integrated circuit dedicated to drawing, such as an RTC (cathode ray tube controller), is used. This drawing device 29 draws a straight line on the bitmap memory 30 using a known algorithm by providing coordinate data, processing type, etc. from the outside.
This is used to fill in closed areas, etc. Note that filling a closed area means setting the bit of the address corresponding to the closed area of the bitmap memory 30 to a specific state.

A CPU (central processing unit) 32 is connected to this drawing device 29 via a gate 31. The gate 31 is closed during the period when the image input device 21 is scanning, that is, when data is being received and transferred between the serial/parallel conversion circuit 28 and the drawing device 29, and is closed during other periods. will be open.

The CPU 32 writes function codes to the RAM table 26 and controls the drawing device 29. Based on instructions from the digitizer 5, the CPU 32 rewrites the contents of the RAM table 26 and controls which areas of the bitmap memory 30. An instruction is given to the drawing device 29 as to whether to fill in the area.

Next, the operation of the above-mentioned copying machine system is carried out by specifying rectangular and triangular editing areas P and Q for the horizontally long A2-size document DA2 as shown in FIG. An example will be explained in which image processing is performed to reduce the size of the A3 size copy.

First, as shown in FIG. 2, the insertion tray 18 of the original reading device 8 is placed in a state where it is tilted toward the platen cover 4 side of the main body 1 of the copying machine. When the insertion tray 18 is folded down, a switch (not shown) that is linked to this switches the input signal source of the image input device 21 from the document reading section 2 of the copying machine main body 1 to the imaging optical section 17 of the document reading device 8. It will be done. Next, the A2 size original D A 2 is placed along the insertion tray 18.
is inserted into the document reading device 8. Next, the operator instructs the user to use the operation panel 8a provided on the document reading device 8 that the document size is A2. As a result, the copying magnification of the copying machine system is set to 70%. In this state, if you press the copy start button (not shown) provided on the operation panel 1a of the copying machine main body 1 without instructing editing, the original transport unit 13 of the original reading device 5
．． The document DA2 is transported at four times the speed, and the image of the document DA2 is read by the image sensor 16 of the imaging optical section 17, and the image of the document DA2 is read by the A/D converter 21. Dither processing circuit 23. The binarization circuit 241 is outputted to the image output device 27 via the image processing circuit 25. At this time, in the image processing circuit 25, the image signal of the document DA2 is only thinned out to 70% in the main scanning direction, and no editing is performed. Therefore, the image output unit 3 outputs a 43rd version copy that has been reduced to 70% in both the main and sub-scanning directions.

Next, after setting up the insertion tray 18, an A3 version manuscript DA3, which is a reduced copy of the A2 version manuscript DA2 to be edited, is inserted.
the area specified area ER of the digitizer 5 (see Figure 3)
Place it on top and specify the editing area.

At this time, the lower right corner of the document, which serves as a reference for editing, is pressed against the reference position of the right corner of the digitizer 5 to perform positioning. The region specification area E3 of the digitizer 5 is
It is slightly lower than the function designation area E and the frame part 5g, and a positioning guide 5h is formed by a right angle formed between this step and the function designation area E and the frame part 5g. FIG. 6 schematically shows the relationship between the rrt document and the positioning guide 5h at this time. Note that the * mark in the figure indicates the corner of the manuscript that serves as a reference for editing.

For example, when specifying a rectangular editing area P, specify the area with two vertices in the function specification area E, enter the coordinates of the two diagonal vertices in the area specification area Ei, and then When specifying the editing area Q of , after similarly instructing to specify the area as a polygon, the coordinates of the three vertices are input. The coordinate data of these indicated points is CP
A register or memory in the CPU U32 is supplied to the CPU U32 as coordinate data that defines a closed area for filling.
(not shown). Next, function specification area Ep
to specify the type of editing, such as deletion. Note that when the area specification area Ei of the digitizer 5 is pressed, the CPU 32 processes the coordinate data as area information,
When any of the windows 5a to 5f in the function designation area EP is pressed, the coordinate data is processed as function information such as the type of editing.

Next, the A2 size original DA2 that was copied earlier is inserted into the original reading device 5 again, and the copying start is instructed.

Thereby, based on the coordinates previously input by the digitizer 5, the drawing device 29 fills in the closed areas corresponding to the editing areas P and Q in the bitmap memory 30.

Subsequently, as shown in FIG. 7, the image of the A2 size document D A 2 is read by the document reading device 5, and the drawing device 29 is activated in synchronization with the synchronization signal S@Y*C generated when reading this image. As shown in FIG. 8, the contents of the bitmap memory 30 are read out pixel by pixel and supplied to the RAM table 26 by the serial/parallel conversion circuit 2B. In addition,
In FIGS. 7 and 8, solid-line arrows indicate the main scanning direction, and broken-line arrows indicate the sub-scanning direction.

Reading from this bitmap memory 30 is performed using DMA.
This is performed using a method called (direct memory access). That is, when outputting an image that requires high-speed memory operation, the gate 31 is closed by the DMA control signal So generated in synchronization with document scanning, the drawing device 29 is disconnected from the CPU 32, and the CPU
The bitmap memory 30 is directly read out by a DMA control circuit (not shown) without being under the control of U32.

In the RAM table 26, the CPU 32 has written in advance the correspondence between the data representing the type of processing described above and the function code. Therefore, from the RAM table 26, the function code is read out pixel by pixel corresponding to the filled area (indicated by hatching in FIG. 8) of the bitmap memory 30, that is, the editing area.

In the image processing circuit 5, processing corresponding to the function code from the RAM table 26 is performed. If the type of processing is deletion, for example, the editing area is wiped and the passage of the image signal is blocked.

The image signal after image processing is supplied to the image output device 27,
A 43rd edition reduced copy in which the specified area of the original image is deleted is obtained.

As described above, reduce the A2 version original DA2 to -HA3 version, place this reduced copy on the digitizer 5, specify the area, and then copy the A2 version original mDA2 again. This makes it possible to define an arbitrary area of the document using a digitizer that is narrower than the document.

Next, another method of specifying an editing area for a document wider than the digitizer 5 will be described with reference to FIG.

First, as shown in Figure (a), place the lower half of the A2 document DA2 in portrait orientation on the digitizer 5 (indicated by the broken line), and place the reference corner (indicated by *) of the document in the area. It abuts against the positioning guide 5h, which serves as a specified reference.

Next, coordinates for defining a rectangular editing area P are input from the digitizer 5. Note that it is assumed here that the first input corresponds to the lower half of the document. At this time, the coordinates of multiple vertices of the input area P are (xp, yp
), the coordinates x and y on the bitmap memory 30 are X = Xp y = yp.

Next, after instructing that the area specification for the lower half of the document DA2 is complete, the document DA2 is translated downward and the upper half is placed on the digitizer 5, as shown in FIG. do. At this time, in order to accurately align the document D A 2, a center mark M is attached to the center of the long side of the document, and the center mark M and the positioning guide 5h are aligned.
match.

In this state, the coordinates of the area Q are input in the upper half in the same way as in the lower half. If the coordinates of a plurality of vertices of the area Q input at this time are represented by (xa, yJ), the coordinates x, y on the bitmap memory 30 are X = X a +
ay=ya. However, a is the length of the short side of the digitizer 5.

As a result, coordinate data for defining regions P and Q of the document D A 2 is input, coordinate transformation is performed on the coordinates of region Q, and data is stored on the bitmap memory 30 based on these data. A bit pattern corresponding to the editing area is formed. In other words, this is equivalent to specifying an area using a portrait-oriented A2-size Digitype.

However, when reading the A2 size original DA2, the original DA2 is placed horizontally. Therefore, if the bit pattern of the bitmap memory 30 is read out while reading the image of the original DA2 in this state, the editing area of the original DA2 and the editing area of the bitmap memory 300 will not match.

Therefore, as shown in FIG. 10(a), the A2 version manuscript DA2
If you place it vertically, divide it into two parts, and specify the area using the A3 size digitizer 5, rotate the coordinates input from the digitizer 5 by 90 degrees clockwise around the origin, as shown in Figure (b). Furthermore, coordinate transformation is performed by shifting in the y direction by the length of the A2 size in the longitudinal direction. As a result, in the same state as when reducing the A2 version manuscript to the -HA3 version and specifying the area with the digitizer 5 based on this reduced copy,
The editing area can be developed in the bitmap memory 30.

As a result, the editing area of the A2-sized document D A 2 placed horizontally matches the editing area of the bitmap memory 30, making it possible to edit the image as specified.

Furthermore, since the editing area is directly specified using the A2-size original DA2, there is an advantage that there is no need to make a reduced copy for specifying the editing area.

Furthermore, by developing the editing area inputted in the state shown in FIG. 10(a) as it is into a bitmap image and changing the way it is read from the bitmap memory 30, the final output on recording paper can be made as is. It can also be made similar to.

Next, another editing area specifying method will be explained with reference to FIG. 11.

In the method shown in this figure, in addition to the positioning guide 5h that defines the position of the lower right corner of the document, this guide 5h
A positioning guide 51 that defines the position of the upper right corner of the document is provided at a distance a distance from the document. First, as shown in FIG. 5A, the lower half of the A2 manuscript D A 2 is placed vertically on the digitizer 5, and the corner is brought into contact with the positioning guide 5h to define the editing area P. Enter the coordinates for Next, the document DA2 is translated downward and the upper half of the document DA2 is placed on the digitizer 5 as shown in FIG. Enter the coordinates to

The relationship between the input coordinates and the coordinates on the bitmap memory 30 in this case is the same as in the method shown in FIG.

In the editing area specification method shown in FIG.
There are no inconveniences such as time-consuming attaching/detaching or writing/erasing the center mark.

FIG. 12 shows still another method for specifying areas on an A2 size original.

First, as shown in FIG. 5A, half of the A2-size original D A 2 is placed vertically on the digitizer 5, and the corner is abutted against the guide 5h. Next, coordinates for defining the editing area P are input from the digitizer 5. At this time, the input area Po) coordinates of multiple vertices are (Xp, !/p
), the coordinates x and y on the bitmap memory 30 are X"Xp y"=yP.

Next, as shown in FIG.
Rotate it once, place the other half on the digitizer 5, and abut the corner against the guide 5h.

In this state, the coordinates of area Q are input in the same way as for area P. At this time, the coordinates of multiple vertices of the input area Q are (
xa, ya), the coordinates X, Y on the bitmap memory 30 are x=2a-Xa y=l)y@. However, b is the length of the long side of the digitizer 5.

The fact that a bit pattern corresponding to the editing area is formed on the bitmap memory 30 based on these data is similar to the area specifying method shown in FIGS. 9 and 11 described above. be. Further, according to the method shown in FIG. 12, only one positioning guide is required, and there is no need to attach a center mark to the document.

As mentioned above, when dividing a large-sized original such as an A2 version manuscript into two and inputting the editing area with the digitizer 5, the input is divided into the first half area and the second half area, but before inputting the second half area, the second half area It is necessary to input the origin of

Focusing on the order of specification, there are two ways to input the origin of this second half area: one is to specify the origin when specifying the second half area;
There are two methods for specifying the origin when specifying the first half area.

Furthermore, when focusing on the number of designated points, there are a one-point pointing method and a two-point pointing method.

FIG. 13 shows a case where the origin is specified at one point when specifying the latter half area. In this case, first, as shown in FIG. 5(a), for example, place the first half of the document on the digitizer 5 (indicated by the broken line), specify the first half area, and specify the origin of the second half area. Specify the coordinates of the point (indicated by an x). Next, as shown in (6) in the same figure, move the document tray arbitrarily within the range where the origin of the second half area specified in the first half area is located on the digitizer 5, and then specify the origin of this second half area again in the second half area. do. Therefore, the second half area x'-y'
The coordinate system is a coordinate system that is translated in parallel to the first half region xy. In this case, there is no need to align the corner of the document tray with the digitizer 5, so there is no restriction on the document placement position.

Furthermore, in the case of the two-point indication method, as shown in FIG. 14(a), the coordinates of two points P+ and Pi are specified when specifying the first half area. In this case, of the two specified points P, , P, for example, the first specified point P1 is set as the origin.

Next, as in the case of Fig. 13, the origin specified in the first half area is specified again, and the two points PI, P
2. Place the original so that it is parallel to the X axis of the digitizer 5 or parallel to the X axis. Note that here it is made to coincide with the X axis. After that, edit the second half area. In this case, as shown in FIG. 4B, the second half region X"-y" becomes a coordinate system that is translated and rotated with respect to the first half region x-y.

Next, a case will be described in which the origin is specified when specifying the first half area.

In this case, first, as shown in FIG. 15(a), the coordinates (x+, yl) of the origin in the document are specified when editing the first half area. Next, as shown in FIG. 5B, the document tray is moved so that this origin coincides with the corner that is the origin of the digitizer 5, and then the editing area in the latter half is designated. In this case, the coordinates (X2
．． ]/2) is (X
2+xl+yl"yl). After this, if you perform the first coordinate conversion process (similar to the coordinate conversion process shown in Figure 1), the image of the horizontally oriented document will be converted from the specified area by dividing the area with the document oriented vertically. The data can be developed on the bitmap memory 30 using the following steps.

In addition, Fig. 16 shows another method of specification, and Fig. 16 (a
), when editing the first half area, the origin (xl.

y+), and when editing the second half region, this point is again designated as the origin (X2.y2) of the second half region. In this case, the coordinates (XI
, Y3) is (XI
"XI-XI y3")'l-5'2).

Figure 17 shows yet another method of specification, and Figure 17 (a)
As shown in the figure, two points P, , P2 are specified when editing the first half area. In this case, the first input point P is the origin, and the straight line connecting the two points p, , pz is the second half region X.

If it is determined that the rotation angle θ between the first half region and the second half region is determined to coincide with the y-axis of −yo, then by performing rotation processing on the coordinates of an arbitrary input point P in the second half coordinate system, A second stop can be performed in the same manner as in the case of FIGS. 15 and 16 described above.

As mentioned above, by converting the coordinates when editing the second half area to the coordinates of the original coordinate system, it becomes possible, for example, to specify an area for a document larger than the A3 size using an A3 size digitizer. .

In addition, in each of the above-mentioned area specification methods, the coordinates of one coordinate system are converted to the coordinates of the other coordinate system, but the method is not limited to this. Any conversion method may be used.

〔Effect of the invention〕

As described above, according to one of the image editing methods of the present invention, when making a reduced copy of an original, the original is first reduced and centrally copied to make a reduced copy of a size that can be placed on a coordinate input device. The editing area is specified based on this reduced copy. When copying, image editing is performed based on this editing area. This makes it possible to designate an editing area and copy a document that is wider than the coordinate input device.

According to another image editing method of the present invention, the original is placed vertically with respect to the horizontally oriented coordinate input device, the original is moved vertically, the editing area is specified twice, and the editing area is input each time. By converting the coordinates thus obtained into coordinates in a common coordinate system, it is possible to designate an editing area and copy a document that is wider than the coordinate input device.

[Brief explanation of drawings]

Fig. 1 is a front view of the entire copying machine system to which the image editing method of the present invention is applied, Fig. 2 is a partial perspective view of the copying machine system, and Fig. 3 is a diagram of the digitizer used to specify the editing area. A plan view, FIG. 4 is a block diagram showing the image signal processing system of the copying machine, FIG. 5 is an explanatory diagram showing the relationship between the A2 version manuscript and the designated editing area, and FIG. 6 is the A2 version manuscript shown in FIG. 5. An explanatory diagram showing the relationship between the A3 size copy obtained by reducing the size of the original and the positioning guide, Fig. 7 is an explanatory diagram showing the image reading operation of the A2 original, and Fig. 8 is an explanatory diagram showing the bitmap memory reading operation. Figure 9 is an explanatory diagram showing a method of specifying an editing area by attaching a center mark to a document and moving it in parallel, and Figure 10 is a diagram showing the conversion of coordinates input separately by a digitizer to coordinates in bitmap memory. Figure 11 is an explanatory diagram showing how to specify the editing area by moving the document in parallel using two positioning guides, and Figure 12 is an illustration showing how to edit by rotating the document 180 degrees. An explanatory diagram showing how to specify an area, Figure 13 is an explanatory diagram showing how to specify the origin with one point when editing the second half area, and Figure 14 is a diagram explaining how to specify the origin with two points when editing the second half area. Figures 15 and 16 are diagrams explaining different methods of specifying the origin with one point when editing the first half area, and Figure 17 explains a method of specifying the origin with two points when editing the first half area. This is a diagram. 1: Copying machine body 1a, 3a: Operation panel 2: Original reading section 3: Image output section 4 Nibraten cover 5 = Digitizers 5a to 5f: Window section 5g: Frame sections 5h, 5i + positioning guides 5a, 5b: Paper feed tray 7: Paper ejection tray 8: Document reading device 9.10: Conveyance roller pair 11: Platen gas → platen roller 13: Document conveyance section 14a, 14b:
Mirror 15: Lens 16: Image sensor 17:
Imaging optical section 18: Insertion tray 19, 20: Ejection tray 21: Image input device 22 + A/D converter 23 dither processing circuit 24: Binarization circuit 25: Image processing circuit 26: RAM table 27: Image output device 28
:Serial-to-parallel conversion circuit 29:Drawing device 30:Bitmap memory 31:Gate
32: CPUD: Manuscript DA2: A2
Version manuscript DA3: A3 version manuscript M: Center mark P,
Q, R, S: Editing area

Claims (1)

[Claims] 1. Obtaining an image signal by reading an image of a document, outputting a reduced copy based on the image signal, and determining coordinates defining an editing area input from a coordinate input device based on the reduced copy. is stored, and based on the coordinates, a value corresponding to the editing information is developed in a bitmap memory, and while re-reading the surface image of the original, the bitmap memory is read out in synchronization with this, and the value corresponding to the editing area is read out. An image editing method characterized by performing predetermined image processing on the image of the original document and outputting a copy. 2. Memorize the coordinates input while a part of the original is placed on the coordinate input device with reference to the first coordinate system, and when the other part of the original is placed on the coordinate input device. storing the coordinates input in the state using a second coordinate system as a reference, converting the coordinates in the first coordinate system and the coordinates in the second coordinate system into coordinates in a common coordinate system, and converting the coordinates in the first coordinate system and the coordinates in the second coordinate system into coordinates in a common coordinate system, A value corresponding to the editing information is expanded into a bitmap memory based on the coordinates of the system, and the bitmap memory is read out in synchronization with the image of the original while reading the image of the original, and the image of the original corresponding to the editing area is expanded. An image editing method characterized by performing predetermined image processing on the image and outputting a copy. 3. A positioning guide is provided at the reference position of the coordinate input device, and a center mark is attached to the center of the long side of the document, and the corner of one half of the document is pressed against the positioning guide. The document is characterized by inputting coordinates in the first coordinate system, and inputting coordinates in the second coordinate system while vertically moving the document in parallel and aligning the center mark with the positioning guide. 3. The image editing method according to claim 2. 4. Providing the first positioning guide at a reference position of the coordinate input device, and providing a second positioning guide at a position separated from the first positioning guide by the length of the short side of the coordinate input device; Coordinates are input in the first coordinate system with a corner of one half of the document in contact with the first positioning guide, and the other half of the document is moved vertically in parallel. 3. The image editing method according to claim 2, wherein the coordinate input in the second coordinate system is performed with a corner of the image abutting against the second positioning guide. 5. A positioning guide is provided at a reference position of the coordinate input device, and coordinates are input in the first coordinate system with a corner of one half of the document in contact with the positioning guide, and the document is moved to 180 3. The image editing method according to claim 2, further comprising inputting coordinates in the second coordinate system with a corner of the other half of the document abutting against the positioning guide after rotating the document. 6. A positioning guide is provided at a reference position of the coordinate input device, and coordinates are input in the first coordinate system with a corner of one half of the document in contact with the positioning guide, and an image is placed on the document. After inputting the coordinates of a point that will be a dividing mark in the image, moving the document, and inputting the coordinates of a point in the image that will be a dividing mark on the original as the origin of the second coordinate system. 3. The image editing method according to claim 2, further comprising inputting coordinates in the second coordinate system.