JPH0562978B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to an apparatus for creating a document pasting sheet for a scanner, which is used when performing color separation on various documents using a scanner, particularly a layout scanner. .

(Technical background) In recent years, along with the color separation of manuscripts using scanners,
2. Description of the Related Art Layout scanners that synthesize image data for one page of printed matter through computer processing are used in the field of printing plate making. This layout scanner is a scanner connected to a computer with a page editing function. Image data captured by the scanner is fed to the above computer, and after processing such as layout, it is output to the above scanner. be.

FIG. 9 is a schematic diagram generally showing the configuration of a layout scanner. In the figure, 160 is a layout section, 170 is a tablet digitizer, and 180 is a scanner section. As shown, layout section 1
60, a computer 160, memories 162, 1636, and a display 16 connected thereto;
4. Joystick 165 and keyboard 16
Consisting of 6 tablet digitizers 170
consists of a cursor 171 and an input surface 172, and the input surface 172 has a mount area 173 and a menu area 17.
4 is set. The scanner section 180 includes an input drum 181, an output drum 182, a linear encoder 183, a rotary encoder 184, and interfaces 185 and 186, which are connected to the computer 161. Note that the computer 161 includes an input computer, a layout computer, and an output computer (all not shown).

In this layout scanner, editing work of image data is performed in the following manner based on various manuscripts, layout specification sheets, and other instructions. First, a document is pasted on the input drum 181 of the scanner section 180 at the angle specified by the layout specification sheet, and the image taber of the document is transferred to the interface along with the X-direction position data PX from the linear encoder 183 and the Y-direction position data PY from the rotary encoder 184. The data is input to the input computer (not shown) of the computer 161 via the face 185 and stored in the memory 162. Image data is captured from the document in an area slightly larger than the actual trimming area based on a layout designation sheet (not shown), and later accurate trimming is performed using a layout computer (not shown) of the computer 161.

The memory 162 in which image data has been written is separated from the input computer and connected to the layout computer. This will cause display 16
4 displays image data written in the memory 162. The operator observes this displayed image and moves the cursor by operating the joy stick 165 while referring to the layout designation sheet to designate the trimming range, the position of the screen cover, etc. Further, the keyboard 166 is used to specify the magnification ratio, plate color, dot %, etc.

Since these data are written to the memory 163, after the writing is completed, the memory 163 is disconnected from the layout computer and connected to an output computer (not shown) of the computer 161. As a result, the data in the memory 163 is taken out via the output computer and interface 183, and the trimmed and laid out image is output onto the film set on the output drum 182 of the scanner section 180.

Further, the above-described operations performed using the joystick 165 and the keyboard 166 can also be performed by operating the tablet digitizer 170. That is, the tablet digitizer 170
Set the layout designation paper in the mount area 173 and operate the cursor 171 to display the position data of the picture drawn on the layout designation paper and the menu area 7.
All you have to do is select and input the various menus set in 4.

Here, the input drum 181 of the scanner section 180
When importing image data of a document from the input drum 1, first place the document at the angle specified on the layout paper.
It is necessary to paste it to 81. The pasting work of this manuscript is carried out by the operator based on visual estimation. That is, the inclination angle of the figure drawn on the layout designation paper is measured with a protractor, and based on this measurement value, the angle of the document is confirmed using a protractor, etc., and the document is pasted on the scanning drum. Therefore, there has been a problem that not only the work is complicated, but also the manuscript cannot be pasted at an accurate angle.

Next, in layout work using the computer 161, it is necessary to accurately trim the captured image data. Since this trimming work is performed by displaying the image on the display 164 and operating the joy stick 165, the position of the trimming range tends to be inaccurate, which not only requires skill but also requires the use of the computer 161 for a long time. There was a problem that the expensive layout scanner could not be used efficiently.

Therefore, in order to improve the above-mentioned work, a device for measuring the magnification ratio and outputting the angle pasting gauge of the original using a magnification measuring machine having a function of projecting the original was proposed as an invention in Japanese Patent Application No. 162108/1983. ,
Proposed by the applicant.

However, the device that outputs the original angle pasting gauge described above cannot specify the trimming range, and the reality is that the trimming range relies on the complicated work of displaying the image on the display 164. be.

(Object of the Invention) The present invention has been made in view of the above-mentioned points, and is capable of outputting the magnification ratio of the original, the pasting line of the original, and the trimming range at the same time to a desired position on the original pasting sheet, and using the layout scanner. The purpose is to provide a device that operates efficiently.

(Summary of the Invention) To achieve this objective, the present invention provides a magnification measuring device that measures the magnification of the original by projecting the original into a specified size, positional data of a reference line on a designated layout sheet,
A data tablet into which position data of the projected original and position data indicating the trimming range of the projected original are input, and calculations are performed based on the magnification data from the magnification measuring device and the position data from the data tablet. an arithmetic and control device that calculates data for pasting lines and trimming ranges; an instruction device that displays the arithmetic results in a prespecified area on a display and instructs the output position of the output position; The present invention provides an apparatus for creating a document pasting sheet for scanner, comprising an output device that outputs the document pasting line and the trimming range based on the result and the output position of the indicating device.

(Example) Examples of the present invention will be described below with reference to the drawings.

FIG. 1 is an external view of an apparatus showing an embodiment of the present invention, in which 1 represents a magnification measuring device, 2 a work table, 3 a column, 4 a projection lens, 5 a document holder, 6 a lamp house, 7 is an operation control panel, 8 is a magnification display, 9
1 is an angle display, 10 is a data tablet, and 11 is a cursor. Magnification measuring device 1 is keyboard 21
It is connected to an XY plotter 30 via an arithmetic and control unit 20 to which a display 22 is connected. Note that B is a designated layout sheet, and I is a projected image of the original set in the original holder 5.

The projection lens 4, document holder 5, and lamp house 6 are held together by the support 3, and the magnification measurement is performed using the surface of the designated layout paper B placed on the surface of the workbench 2 as the projection surface of the document image. A document placed in a document holder 5 is illuminated by a light source provided in a lamp house 6 through a suitable condenser lens, and a projected image I of the image is displayed. It is designed to be projected onto the surface of designated paper B.

Furthermore, the projection lens 4, document holder 5, and lamp house 6 are configured to be movable up and down along the support 3, and are moved up and down by operating a switch on the operation control panel 7. Reducing the image to any size within a predetermined range,
The enlarged projection image I can be formed on the surface of the layout designation paper B. At this time, the distance between the projection lens 4 and the layout instruction sheet B is taken in by a linear encoder or the like, and the magnification is calculated through arithmetic processing and displayed on the magnification display 8.

Therefore, set the transparent original in the original holder 5,
If the projected image I is matched with the figure drawn on the layout designation paper B, the magnification is automatically displayed on the magnification display 8, and the magnification measurement can be completed. Note that such an automatic magnification measuring device is well known.

FIG. 2 is a block diagram showing an example of a signal processing system in an embodiment of the present invention, in which the data supplied to the magnification measuring device 1 and the data tablet 10 are sent to the arithmetic and control unit 20 via the signal input section 15. However, the acquisition of data and the start of arithmetic processing by the arithmetic control unit 20 at this time are controlled by the numeric keys, push button switches, or keyboard 21 provided on the operation control panel 7. A drive signal is output to the plotter 30, a display signal is output to the angle display 9 and the magnification display 8, and the like.

Next, operations for setting the magnification ratio, angle adjustment, and trimming range of a document according to this embodiment will be explained.

FIG. 3 is an explanatory diagram showing the measurement procedure in the above operation.

First, after setting the layout designation sheet B (or a copy thereof) on the data tablet 10 on the workbench 2 (S1), the size of the original pasting sheet to be created is input (S2). This input is performed by directly inputting the size itself from the keyboard 21, by inputting preset numbers and symbols, or by inputting the target scanner and drum type. The input size of the original pasting sheet is stored in the memory 23 via the arithmetic and control unit 20. In addition, if you do not enter the size itself,
The output size corresponding to the input number, etc. is stored in the memory 23 in advance. Thereafter, a document such as a color film is set in the document holder 5 (S3), and an image I of the document is projected onto the surface of the designated layout paper B set on the data tablet 10 on the workbench 2.

Next, after inputting the document number using the numeric keypad or keyboard 21 provided on the operation control panel 7 (S4), operate the magnification adjustment switch provided on the operation control panel 7 to select the layout specified paper B. The pattern of the original image I is made to match the drawn layout designation figure. Note that the matching of the positions at this time is performed by shifting the layout designation paper B on the workbench 2.

Thereafter, by operating the magnification display switch on the operation control panel 7, the magnification at that time is displayed on the magnification display 8, and the magnification data is taken into the arithmetic and control unit 20 (S5).

As already explained, the above operation is almost the same as in the case of a well-known magnification measuring machine, and the following operation is not necessary for a document that does not require setting the angle or the trimming range.

Next, various positional data on the layout designation sheet B are input (S6).

FIG. 4 is an explanatory diagram of input points on the data tablet 10. In the figure, a layout designation paper B is placed on a data tablet 10 provided on a workbench 2, and a plate line H forming a rectangle and a layout designation figure E are drawn on the layout designation paper B. ing.
The projected image I is projected so as to match the figure E.

First, the position data of two points P1 and P2 on the printing plate line H drawn on the layout designation sheet B are inputted using the cursor 11. This plate surface line H corresponds to a reference line when pasting a document onto a disassembly drum of a scanner. Next, use the cursor 11 to input the position data of the vertices R1, R2, R3, and R4 of the rectangle forming the projection image I, and further input the position data of the vertices Q1, Q2, and Q3 of the rectangle indicating the trimming range in the projection image I. ,Q
Input the position data of 4 using the cursor 11. These position data are taken into the arithmetic and control unit 20 by operating the operation switch on the operation control panel 7 or the keyboard 21.

When the position data on the assigned paper B is input in this way, the arithmetic control unit 22 starts processing the position data and the magnification data, and calculates the pasting line data and trimming range data of the original (S7 ), are stored in the memory 23, and the original pasting line and trimming line are displayed on the display 22 (S8). Further, the inclination of this paste line with respect to the reference line, that is, the set angle data of the document F is simultaneously displayed on the angle marking device.

FIG. 6 is an explanatory diagram showing the state of figures displayed on the display 22. As shown in the figure, an outer frame 50 indicating the size of the original pasting sheet input in step 2 is displayed on the display screen of the display 22, and an outline 51 of the original is placed at a predetermined position P0 inside the outer frame 50. A figure A consisting of trimming lines 52 is displayed, the document No. FN input in step 4 is displayed near the figure A, and the outer frame 50
The seal size SI input in step 2 is displayed near the outer lower right corner of the screen. This contour line 51 is displayed based on the document pasting line data calculated in step 7, and the trimming line 52 is displayed based on the trimming range data calculated in step 7. The character A displayed on the display 22 can be moved arbitrarily within the outer frame 50 by operating a cursor movement key (not shown) provided on the keyboard 21. Note that the predetermined position P
0 is not limited to the lower right corner as shown in the figure, but can be set arbitrarily.

Next, the figure A displayed on the display 22
is moved to a desired position by operating the keyboard 21, and output position data is input (S9). This movement of figure A is, for example, a position P indicated by a broken line in FIG.
This is done by moving figure A to 1. This output position data is then stored in the memory 23 via the arithmetic and control unit 20.

Here, when the gauge output switch on the operation control panel 7 or the keyboard 21 is operated, the data from the memory is sent to the control circuit of the XY plotter 30, which starts the graphic output operation by the XY plotter 30, and pastes the original. A hard copy with a line and a figure indicating the trimming range drawn at the specified position is completed (S10).

After this, if you want to measure the magnification of the next document, go from step 11 to return to step 3 and then return to step 3.
Perform operations up to 10. In this case, in step 8, the outline line, trimming line, etc. of the document whose output position has been inputted up to the previous operation are displayed on the display 22. Therefore, step 9
In this case, the figure displayed at position P0 may be moved to a desired position by referring to these display figures to which output position data has already been input.

In this way, when a series of tasks such as repeating the specified document magnification measurement work is completed, or
In step 8, if there is no more space for graphics that can be displayed on the display 22, a termination operation is performed (S11).

FIG. 5 is an explanatory diagram showing the positional relationship of each point inputted from the data tablet 10 in step 6. Based on the diagram, calculation of the pasting line data and trimming range data of the original in step 7 is explained in detail. explain.

In the X-Y coordinates shown in the figure, the coordinates of two points P1 and P2 on the printing plate line H are P1 (a, b), P2 (c,
d), the inclination θ of the printing plate line H with respect to the coordinate axis X
becomes tanθ=d-b/c-a.

Here, the origin is P0 (w, z), and the printing plate line H
If the new coordinates whose coordinate axes are the lines perpendicular to these are x-y, then the coordinate transformation formula from the X-Y coordinates to the x-y coordinates is as follows.

X=x cosθ+y sinθ+w y=-x sinθ+y cosθ+z Than this x=(X-w)cosθ+(z-Y)sinθ y=(X-w)sinθ+(Y-z)cosθ becomes.

Also, from the formula, sinθ and cosθ are Therefore, on the data tablet 10,
An arbitrary point coordinate input as a Y coordinate is replaced with a coordinate value on an xy coordinate based on the printing surface line H according to the formula. For example, if the X-Y coordinate values of point R1 are (XR1, YR1) and the x-y coordinate values are (xR1, yR1), becomes. Similarly, all points R2 to R4 and Q1 to Q4 are obtained in xy coordinates.

Next, drawing coordinate values for drawing with the XY plotter 30 are calculated from these coordinate values.

If the magnification obtained in the magnification measurement work is multiplied by m, the coordinate values obtained as a result of the above calculation are (x, y), and the drawing coordinate values are (Dx, Dy), then Dx = (1/m) x Dy = (1/m)y.

Therefore, from the formula, XY plotter 3
A drawing coordinate value that is drawn at 0 will be obtained.

FIGS. 7a and 7b are explanatory diagrams showing examples in which original pasting lines and trimming lines output in step 10 are drawn on various sheets.

FIG. 7a shows an example of drawing on a transparent sheet 100. In the figure, a reference line 101 corresponding to a printing plate line H is drawn at one end of a transparent sheet 100, and furthermore, a document number 100N and a magnification value 100m are drawn. A rectangular original pasting line 102 is drawn in the center of the transparent sheet 100, and a rectangular trimming line 1 indicating the trimming range is drawn inside the original pasting line 102.
03 is drawn.

FIG. 7b is an example of drawing on an opaque sheet 200 such as paper. In this case, like the transparent sheet 100 above, the reference line 201, original number 200N, and magnification value 2 are used.
00m, a rectangular original pasting line 202 is drawn, and a trimming line 203 is drawn with each side of the rectangle extended to the outside of the original pasting line 202. This is because, after the opaque sheet 200 is cut and cut out along the original pasting line 202, the original is set in the cutout.

FIG. 8 is an explanatory diagram showing an example in which original pasting lines and trimming lines are drawn on an opaque sheet based on the output position data input in step 9. As shown in the figure, a reference line 301 is drawn at one end of the sheet, a document pasting line 302 and a trimming line 303 of each document are drawn at desired positions, and a document number is placed near these document pasting lines and trimming lines. 300
N and a magnification value of 300m are drawn.

Note that the original pasting sheet created with the device of the present invention is not only used for the purpose of improving the operating efficiency of a layout scanner, but also for improving the operating efficiency of a normal scanner that is not connected to a computer. Needless to say, it can be done.

(Effects of the Invention) As described above, in the present invention, when measuring the magnification of the original, the position data of the reference line of the layout designated paper B, the position data of the projected original, and the trimming of the projected original are displayed on the data tablet 10. Enter position data indicating the range, display the original pasting line and trimming line in a pre-specified area on the display, and then display the original pasting line and trimming line to indicate the output position on the original pasting sheet. It is possible to obtain a sheet on which a trimming line and a trimming line indicating the trimming range are drawn at the same time, which greatly improves the efficiency of pasting the original onto the input drum of the scanner, and also eliminates the complicated work of setting the trimming range on the display. The trimming range can be set accurately without having to do so, and the image layout work in the layout scanner can be performed efficiently.Furthermore, the original pasting line and trimming can be done at the desired position on the original pasting sheet without wasting space. Since lines are drawn, the magnification measurement work and the color separation work of the scanner can be performed efficiently, and as a result, the operational efficiency of the layout scanner can be significantly improved.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the appearance of an apparatus according to an embodiment of the present invention, FIG. 2 is a block diagram showing an example of a signal processing system according to an embodiment of the present invention, and FIG. 3 is a diagram showing an example of a signal processing system according to an embodiment of the present invention. Explanatory diagram showing an example of the measurement procedure, Part 4
The figure is an explanatory diagram of the input points on the data tablet 10 shown in FIG. 1, FIG. 5 is an explanatory diagram showing the positional relationship of each input point shown in FIG. 4, and FIG. 8 is an explanatory diagram showing the state of the figures displayed on the display 22, and FIGS. 7a and 7b show examples of drawing the document pasting lines and trimming lines output in step 10 of FIG. 3 on various sheets. An explanatory diagram, FIG. 8 is an explanatory diagram showing an example of document pasting lines and trimming lines drawn on an opaque sheet based on the output position data input in step 9 of FIG. 3, and FIG. 9 is a general layout. There is a schematic diagram showing the scanner configuration. 1... Magnification measuring device, 2... Workbench, 3... Support column, 4... Projection lens, 5... Document holder, 6...
... Lamp house, 7 ... Operation control panel, 8 ... Magnification display, 9 ... Angle display, 10 ... Data tablet, 11 ... Cursor, 15 ... Signal input unit, 20 ... Arithmetic control unit , 21...Keyboard, 22...Display, 23...Memory, 3
0...XY plotter, B...allocation designation paper, I...
Projected image of the manuscript.

Claims (1)

[Claims] 1. A magnification measuring device that measures the magnification of the original by projecting the original into a specified size; positional data of a reference line on a designated layout sheet, positional data of the projected original, and the projected original. a data tablet for inputting positional data indicating the trimming range; and a calculation unit for calculating data on the document pasting line and the trimming range by performing calculations based on the magnification data from the magnification measuring device and the positional data from the data tablet. a control device; an instruction device for displaying the calculation result in a pre-designated area on a display and instructing the output position of the output position; A device for creating a document pasting sheet for a scanner, comprising: an output device that outputs a document pasting line and a trimming range;