JPS6314150A - Original angle/magnification calculation device - Google Patents

Abstract

PURPOSE:To perform operation efficiently by projecting the image of an original with optional magnification, specifying reference points with a cursor, and automatically calculating the angle, magnification, trimming, etc., of the original by a signal processing circuit from position coordinates of those points and the magnification of the projected image. CONSTITUTION:The position coordinates of the points specified on a transmission type digitizer 2, a signal from a keyboard 21, a magnification signal from a magnification converting mechanism 12, etc., are inputted to the signal processing circuit 22. This signal processing circuit 22 computes the magnification, angle, trimming, etc., of the original 30 at the time of plate making on the basis of those input signals and displays the arithmetic results on a CRT 23. Further, the arithmetic processing results are sent to a plotter 24 such as an X-Y plotter and those data are printed out with numbers, reference lines, etc., on a label 33 stuck on the original 30. Further, the arithmetic processing results of this signal processing circuit 22 are sent to a floppy disk drive 25 and recorded on a floppy disk.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a method for making a plate from a manuscript such as a photographic film.
This invention relates to a device that calculates the angle, magnification, etc. of this document.

[Prior Art] Devices that automatically perform plate making for color printing from photographic film or other original documents, ie, color scanners, have been known. This color scanner optically scans a document pasted on a drum, separates the reflected light, detects it, and processes it electronically, and automatically performs plate making for each color.

When performing plate making using such a color scanner, the inclination angle, magnification, trimming, etc. of the original are calculated in advance, and the above original is attached to the drum by an angle corresponding to the above-mentioned inclination angle, and the magnification is adjusted. , cropping, etc. must be input into this color scanner.

In addition, the image signals obtained by scanning the above-mentioned manuscripts are stored and processed, and the rotation, magnification conversion, trimming, etc. are all performed electronically, and the so-called collection of one page of printed matter is electronically performed. There is also a layout scanner. However, with such layout scanners, electronically performing the above-mentioned document image rotation, magnification conversion, etc. requires a long time and causes problems such as image quality deterioration. Even if you do so, it is desirable to calculate the inclination angle, magnification, etc. of the original in advance, attach the original to the drum at a predetermined angle, and input the magnification, trimming, etc. in advance, as in the case of the color scanner mentioned above. .

Conventionally, in order to calculate the angle and magnification of a document in this way, the image of the document is projected onto a designated sheet of paper using a projection device, the magnification of this projected image is adjusted, and the layout is determined by rotating the designated sheet of paper. This image and the layout of the designated paper are frames. The layout in this state is determined by the rotation angle of the specified paper, the magnification of the projection device, etc. when making a plate from this manuscript. The angle and magnification were determined. However, such work is inefficient as it relies on manual labor, and
There is a problem with low accuracy. Further, when an image of a manuscript is projected onto a designated sheet of paper, there is a problem that the shadow of the operator's hand is projected onto the designated sheet of paper, making the work cumbersome.

[Problems to be Solved by the Invention] The present invention has been made based on the above-mentioned circumstances, and it is possible to automatically calculate the angle of the original, magnification, etc., and to provide an angle of the original that allows work to be performed efficiently. - The purpose is to provide a magnification calculation device.

[Means for solving the problems and their effects] The present invention has the following features:
A transmissive digitizer is provided on the upper surface of the main body of the workbench, and a document photographing mechanism is provided on the side of the transmissive digitizer, and the image of the document photographed by the document photographing mechanism is projected onto the transmissive digitizer at an arbitrary magnification using a projection mechanism. The layout of the transparent type projected on the bottom surface and placed on top of this transparent type digitizer is done by rotating the specified paper and making the frame correspond to the projected image.
In this state, these layouts are made by specifying the reference points of the designated paper and the projected image with the digitizer cursor, and using the position coordinates of these points and the magnification of the projected image, the signal processing circuit calculates the angle of this original when making a plate from this original. It automatically calculates magnification, cropping, etc.

Therefore, these angles, magnifications, etc. can be automatically calculated.
Furthermore, since the image of this document is projected from the bottom surface of the transmission type digitizer, the shadow of the worker's hand is not reflected, making the work efficient and accurate. Further, since the document photographing mechanism is arranged on the side of the transmission type digitizer, many documents can be exchanged quickly, and such work is extremely efficient.

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

1 and 2 show a first embodiment of the present invention. 1 in the figure is the main body of the workbench, and the main body 1 of the workbench is shaped like a pile, and its height etc. are set so that a worker can sit in front of it and work efficiently. . A transparent digitizer 2 is provided on the upper surface of the workbench main body 1.

A designated paper 40 is placed on the transparent digitizer 2, and as will be described later, the image of the original projected from the bottom of the transparent digitizer 2 and the layout of the designated paper 40 are is configured such that it can be made to correspond to the frame 42.

Further, a document photographing mechanism 3 is provided on the side of the transmission type digitizer 2, for example, on the left side. The document photographing mechanism 3 is provided with a transparent document placement surface 4, on which a document 30 is placed at a predetermined position. Further, a lid 5 is provided on this original tM2 machine) 1" 43 so as to be openable and closable. Illumination lamps 6.7 are provided inside this lid 5 and below the original WcB surface 4, respectively. ing.

If the original 30 is a transmissive type such as a photographic negative film, the illumination lamp inside the lid 5 illuminates the original 30, and the original is transferred to a positive film or opaque paper. If the document is of a reflective type, such as a drawn illustration, the illumination lamp 7 will illuminate the document 30.
It is configured to illuminate. Further, a lens 8 for photographing an image of this original 30 is provided below this original placement surface 4 .

The image of the document 30 photographed by this lens 8 is transmitted to the transmission type digitizer 2 by the projector groove 15.
The projection mechanism 15 is equipped with two reflecting mirrors 9 and 10 and a projection lens 11, and is configured to project the image onto the lower surface of the document photographed by the document photographing mechanism 3. The image is reflected by the reflecting mirrors 9 and 10, passes through an optical path below the document photographing mechanism 3 and the transmissive digitizer 2, and is projected onto the lower surface of the transmissive digitizer 2 by the lens 11. The lens 11 is moved up and down by a magnification changing mechanism 12, so that the magnification of the original image projected onto the transmissive digitizer 2 can be arbitrarily changed. The changing mechanism 12 has a built-in linear encoder, etc., and is configured to output a signal corresponding to the position of the lens 11, that is, the magnification of the projected image. A box-shaped horizontal optical path cover 13 is provided at the bottom, and the horizontal optical path cover 13 and the above-mentioned transmission type digitizer 2 are connected to each other.
The vertical optical path cover 1 has an inverted pyramid shape between it and the bottom surface of the
4 are provided.

The optical path through which the image of the original document 30 is sent is formed within these covers, and also includes the reflecting mirror 9° 10 and the lens 1.
1 and the magnification conversion mechanism 12 are also housed within these covers. Note that these covers 13 and 14 are set in shape and dimensions so that they do not interfere with the feet of a worker (not shown) sitting in front of the workbench main body 1.

Further, a cursor 20 is connected to the above-mentioned transmissive digitizer 2, and the layout placed on the transmissive digitizer 2 by this cursor 20 specifies the designated paper 40 and the reference point of the projected original image. Then, the configuration is such that the position coordinates of these designated points are detected.

In addition, a keyboard 2 is attached to the corner of the transparent digitizer 2.
1 is provided, and is configured so that data such as the document number can be input.

The positional coordinates of the specified point on the transmissive digitizer 2, the signal from the keyboard 21, the magnification signal from the magnification conversion mechanism 12, etc. are input to a signal processing circuit 22. . This signal processing circuit 2
2 is configured to calculate the magnification, angle, trimming, etc. during plate making of this original 30 based on these input signals, and display the calculation results on the CRT 23.

In addition, the results of this arithmetic processing are transferred to a plotter 2 such as an X-Y plotter.
Label 33 sent to 4 and attached to the above document 30
It is configured to display these data in the form of numbers, reference lines, etc. on the top. Furthermore, the arithmetic processing results in this signal processing circuit 22 are sent to a floppy disk device 25,
It is configured to be recorded on a floppy disk (not shown).

Next, the operation of this device will be explained with reference to FIGS. 3 to 5. First, FIG. 3 shows an example of this original document 30.

In this example, the document is a 35 mm film 31, and 32 is its screen. In this case, the picture on the screen 32 is inclined with respect to the horizontal direction of the screen 32. A label 33 is attached to the lower edge of this 35 mm film 31. In addition, the specified paper 40 for the above layout is semi-transparent, and a reference mark 41 called a registration mark is displayed, and a frame 42 is displayed for the layout indicating the position where the picture of the original is to be printed. There is.

First, the document 30 is placed at a predetermined position on the document placement surface 4 of the document photographing section 3, and the lid 5 is closed. At the same time, the specified paper 40 is placed on the transmission type digitizer 2 in the above layout. Since the document 30 in this case is of a transmissive type, it is illuminated by the illumination lamp 6 inside the lid 5. Then, the image of this document 30 is captured by the lens 8.
The photographed image is reflected by the reflecting mirrors 9 and 1o, and projected onto the transmission type digitizer 2 by the lens 11 from below.

Then, the operator makes the projected image and layout correspond to the frame 42 of the designated paper 40, operates the magnification changing mechanism 12 to change the size of this projected image, and this layout corresponds to the frame 42. Adjust to the desired size.

Further, this layout is performed by rotating the designated paper 40, and as shown in FIG. 4, the layout matches the angle of the frame 42 and the picture of the projected image 31' of the original.

Then, using the cursor 20 of the transmissive digitizer 2, the reference points of the image 31' of this document, for example, the two points PO1PL at the lower corner of the screen 32' are specified. In addition, the layout of the designated paper 40 is the reference point of the frame 42, for example, the three points P2 at the corner. P3. Specify each point of P4.

Further, the reference point of the picture in the image 31' of this original, for example, if the picture is a ship, the point P5 at the edge of the picture is designated. Then, the position coordinates of each of these designated points are sent to the signal processing circuit 22, respectively. Further, a magnification signal from the magnification changing mechanism 12 is also sent to this signal processing circuit 22. Furthermore, by operating the keyboard 21,
The number of the document 30 and the like are input to the signal processing circuit 22 .

Based on these input signals, the signal processing circuit 22 determines the original image and its layout based on the angle formed by the designated paper 40, that is, the angle at which the original 30 is attached to a drum of a color scanner, etc. The magnification of the document, whether or not this document can be trimmed, the range of trimming, etc. are calculated. After the calculation result is once stored, it is displayed on the CRT 23, and is also sent to the floppy disk device 25 and recorded on the floppy disk.

Next, the document 30 is removed from the document photographing mechanism 3 and placed in a predetermined position of the drawing machine 24. The calculation result is sent to the drawing machine 24, and as shown in FIG. number 3
The 6th grade is also drawn with numbers. Then, this original 30 is removed and pasted on the drum of a color scanner. In this case, since the angle of this original 30 is drawn as the reference line 34,
If this reference line 34 is aligned with the reference line of the drum and the document is pasted, the document will be pasted onto the drum at a predetermined angle. At the same time, the floppy disk is removed from the floppy disk device 24, and information such as magnification and trimming recorded on the floppy disk is input to the color scanner. Therefore, when scanning the original 30 with this color scanner, scanning is performed at a predetermined magnification, and only a necessary range within the trimming range is scanned, increasing the operating efficiency of this color scanner.

In the above case, the layout of the designated paper is for the case where the frame is rectangular, but the above operation can be performed even when the frame is other polygonal, circular, oval, etc. For example, as shown in FIG. 5, when the frame 43 is pentagonal, this layout specifies the reference points P2 and P3 of the registration mark 41, etc. on the designated paper 40, and also specifies the reference point P2 and P3 of the registration mark 41 on the designated paper 40, and also the lower corner of the screen 32. The two points PO, PI and this assignment are at each vertex of the frame P4゜P5. P6. P7. By specifying each point of the Pit, the angle, magnification, trimming, etc. of the document can be calculated in the same way as above. .

In this first embodiment, as described above, the original image and layout on the transparent digitizer 2 can be calculated by simply specifying the reference point of the specified paper with the cursor, and the angle, magnification, trimming, etc. of this original can be calculated, making the work more efficient. It is.

In addition, in this device, a transmission type digitizer 2 is provided on the upper surface of the workbench main body 1 on which the operator can sit and work, and a document photographing section 3 is provided on the side thereof, so that the work is efficient. Furthermore, since the image of the document is projected onto the lower surface of the transmission type digitizer by the projection mechanism, the worker's hand is not shadowed, making the work extremely efficient and accurate.

Note that the present invention is not limited to this first embodiment. For example, FIGS. 6 and 7 show a second embodiment of the invention. In this device, the lens 8a of the document photographing mechanism, the reflecting mirrors 9a, 10a, and the lens lla of the projection mechanism are tilted, and the optical path is tilted in a direction away from the operator, that is, toward the other side when viewed from the operator. In this case, since the optical path is inclined, the optical path cover 50 is inclined almost horizontally, and the space 51 for accommodating the operator's feet becomes wider, making the operator's posture more comfortable. Note that this lens 8a
Although the image of the document 30 photographed is shortened vertically, when this image is projected, it is extended vertically, so that no distortion occurs in the image projected onto the transmissive digitizer 2.

Further, FIG. 8 shows a third embodiment of the present invention.

This device is equipped with an optical fiber 60 capable of transmitting an image to a projection mechanism, and transmits an image photographed by a lens 8b of an original photographing mechanism through this optical fiber bundle 60, and displays it on the lower surface of the transmission type digitizer 2 by means of a lens llb. It is something that is projected. This allows the optical fiber bundle 60 to be bent into an arbitrary shape, and the space occupied by the path for image transmission can be reduced.

Furthermore, FIG. 9 shows a fourth embodiment of the present invention.

This device is equipped with a television camera 70 as an image photographing mechanism, and the image of the document 30 photographed by the television camera 70 is transmitted to a transmission type digitizer 2 through an interface circuit 73.
The image is sent to a flat liquid crystal shadow image display device 74 disposed below the image display device 74 and displayed on the image display device 74.

This device converts images into electrical signals and transmits them.
The configuration of this image transmission path becomes more compact.

Furthermore, the present invention is not limited to the above-described embodiments; for example, a zoom lens may be used as the lens of the projection mechanism, and in this way, there is no need to move this lens up and down.

[Effects of the Invention] As described above, the present invention can automatically calculate the angle, magnification, etc. of the projected image and layout of the original by simply indicating a reference point on a designated sheet of paper with a cursor. Furthermore, since the image of the document is projected from below the transmission type digitizer provided on the upper surface of the workbench main body, the shadow of the worker's hand is not projected, making the work more efficient and accurate.

In addition, since the document photographing mechanism is installed on the side of this transmissive digitizer, the worker can quickly exchange documents while sitting in front of this workbench device, greatly improving work efficiency. The effect is huge.

[Brief explanation of drawings]

1 and 2 show a first embodiment of the present invention;
The figure is an overall perspective view, and FIG. 2 is a schematic configuration diagram. Further, FIG. 3 is a plan view showing an example of a document, and FIGS. 4 and 5 are explanatory diagrams of the operation. Further, FIGS. 6 and 7 show a second embodiment of the present invention, with FIG. 6 being a schematic configuration diagram and FIG. 7 being a vertical sectional view of a portion of a transmission type digitizer. Also, FIG. 8 is a schematic configuration diagram of the third embodiment, and FIG. 9 is a schematic diagram of the fourth embodiment.
FIG. 1 is a schematic configuration diagram of an example. 1... Workbench main body, 2... Transparent digitizer, 3...
...Original photographing mechanism, 8...Lens, 9, 10...Reflector, 11...Lens, 15...Magnification changing mechanism, 2
0...Cursor, 22...Signal processing circuit, 24...
・Drawing machine, 30... Manuscript, 40... Assigned paper Applicant's agent Patent attorney Takehiko Suzue Figure 3 Figure 4 Figure 5 Figure 6 Figure 7

Claims (6)

[Claims] (1) A workbench main body in front of which the worker can work while sitting, a transparent digitizer installed on the top of the workbench main body, and a document placed on the side of the transparent digitizer. a document photographing mechanism for photographing an image of the document; and a document photographing mechanism capable of projecting the image of the document photographed by the document photographing mechanism from the lower side of the transmission type digitizer onto the transmission type digitizer at an arbitrary magnification, and projecting the projected image. The transmissive digitizer includes a projection mechanism that outputs a magnification signal corresponding to a magnification, and a signal processing circuit that receives the magnification signal from the projection mechanism and a signal of a specified position coordinate on the transmissive digitizer. By matching the image of the original projected onto the specified layout paper placed on this transparent digitizer, and specifying the reference point of these images and the specified layout paper in this state, when making a plate from the above original. The angle and magnification of the original can be calculated.
Magnification calculation device. (2) The projection mechanism includes a lens and a reflecting mirror, and projects the image of the document onto the transmissive digitizer through an optical path below the document photographing mechanism and the transmissive digitizer. Said claim 1
A device for calculating the angle and magnification of manuscripts as described in Section 1. (3) The optical path is vertically arranged between a box-shaped horizontal optical path cover formed horizontally at the bottom of the workbench body and the lower surface of the transmission type digitizer. 3. The document angle/magnification calculation device according to claim 2, wherein the document angle/magnification calculation device is formed inside a box-shaped vertical optical path cover. (4) The second aspect of the present invention is characterized in that the optical path is formed to be inclined in a direction away from the operator.
A device for calculating the angle and magnification of manuscripts as described in Section 1. (5) The document angle/magnification calculation device according to claim 1, wherein the projection mechanism includes an optical fiber bundle that transmits an image of the document. (6) The document photographing mechanism includes a television camera that photographs an image of the document, and the projection mechanism is a flat plate that is provided below the transmission digitizer and displays the image of the document photographed by the television camera. Claim 1 is characterized in that it is equipped with a liquid crystal type image display mechanism of
A device for calculating the angle and magnification of manuscripts as described in Section 1.