JPS5890639A - Method and device for image processing - Google Patents

Abstract

PURPOSE:To obtain a secure layout speedily through simple constitution by previously storing information necessary for the layout and performing layout arithmetic on the basis of the stored information. CONSTITUTION:Position coordinate numerals of the input starting point P of an original fitting device 1 and the reference point R of an original 2 are determined by the pulse genertors 6 and 7, and counter 8 of a position detector 5 driven by the rotating shaft of the device 1 and a moving scanning head 3, and then written in a storage device 4. Further, pieces of color resolution image information by the head 3 at those points P and R are written in the device 4 as well. Similarly, pieces of position information on reference points Q1-Q3 for coordinate decision on assigned specified paper 9 by a position reader 11, pieces of position information on a reference point R' corresponding to the point R, a trimming frame 10, etc., and enlargement magnification from an en largement magnification automatic measuring instrument 12, etc., are also stored in the device. On the basis of those pieces of information, an arithmetic device 13 performs an arithmetic decision on a layout and controls an output device 14 to output a prescribed picture at a prescribed position. Therefore, a secure layout is obtained speedily through the simple constitution without reproducing a picture on a monitor all the time.

Description

DETAILED DESCRIPTION OF THE INVENTION Recently, color scanners have been known that have a so-called editing function, that is, a full-page collection function, which performs both color separation and final layout.

Color scanners equipped with such editing functions are generally referred to as layout scanners, and can output an original image by exposing it onto film at a specified position and with specified trimming. can.

In order to attach a document to such a layout scanner, it is necessary to make the document have a predetermined angle with respect to the base line of the document drum of the scanner according to the final layout. This is due to the following reasons.

In other words, as shown in FIG. 1, if the document C311 is attached to the document drum (7) straight with respect to the reference line (3) of the document drum, the film attached to the exposure drum after being scanned will be The image c351 exposed to Oa also becomes a straight image with respect to the reference line (3G) of the exposure drum.

Therefore, in order to fully utilize the function of this scanner for simultaneously processing color separation and layout, an image G that is oblique to the reference line (to) of the exposure drum is required, as shown in Figure 2. In this case, when attaching the document C31 to the document drum, it is necessary to attach it diagonally to the reference line 02 of the document drum.This is because such a scanner body scans the document. Later, when exposing the film on the exposure drum, the scanner itself did not have a function to rotate the scanned image at an arbitrary angle relative to the original before exposing it.
Alternatively, even if such a function is provided, the device becomes expensive, and disadvantages such as a decrease in the quality of output images and a decrease in work efficiency occur.

Further layout information is required to obtain the final edited output using the layout scanner. This layout information requires information that allows determining the position of the trimming frame and outputting the output image to a predetermined position within the trimming frame.

Conventionally, in order to obtain this layout information, image information that has been separated by color using a color scanner and stored in a storage device is called up from the storage device, the original image is reproduced on a monitor TV, and a trimming frame is displayed. It was common to move the trimming frame and/or the original image to distribute power to the trimming frame at a predetermined position, and to obtain layout information by placing the original image at a predetermined position within the trimming frame. The reason for adopting this method is as follows. In other words, the finished size of a manuscript image is generally thicker than the size of the original (the trimming position in the manuscript image is determined arbitrarily to some extent, while the trimming position in the manuscript image is The trimming position and dimensions can be calculated numerically from the base point within the page, but the position of the original image is difficult to process numerically.In other words, the original image is generally smaller than the finished size. J. Saku, This is because it is difficult to numerically determine the trimming start and end points.

Layout information is obtained by the conventional method as described above.

Furthermore, in the above-mentioned conventional method, there is also a method in which the position of the image of the document within the trimming frame is visually confirmed by displaying it on a monitor TV, and the layout position is determined by comparing it with the position of the layout image on the layout-designated paper. However, the accuracy of this method is not good.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned drawbacks of the conventional method, to enable numerical processing of the layout position of an image on a document, and to improve the rate of data required for layout.

The present invention will be explained in more detail below.

In the method of the present invention, as shown in FIG.
) at the specified angle.

Means for attaching a document to a document mounting device at a predetermined angle are disclosed in Japanese Patent Application Laid-open No. 55-2'1033 and Japanese Patent Application Laid-open No. 55-3.
313, JP-A-55-50235, JP-A-55-64238, etc., and may be selected as appropriate.

In this way, after the document mounting device (IIVC) document (2) is attached, the document is scanned by the scanning head (3) and the color separation image information of the document image is stored in the storage device (4). , scans the document to find the point at which input begins (input start point) and the reference point (on the RJ document mounting device) in the image of the document (11).Such positional information is obtained by position detection. The position detection device (5) is connected to a pulse generator (6) that generates a pulse signal as the document mounting device (1) rotates and to the movement of the scanning head (1). A pulse generator (7) 'h generates a pulse signal by counting the pulse signals from these pulse generators (6) and (7), and using this counter, the document mounting device (1)
It consists of a counter (8) that measures the rotation angle of the scanning head and the amount of movement of the scanning head (3).

In this way, the positional information of the reference point (R) and the input start point (D) in the image of the original (1) are stored in the storage device (4).

Reference points (the body is an easily recognizable point in the image of manuscript (1), such as a button on a person's clothes in the case of a photograph of a person, or the intersection of two electric wires in the case of a landscape) Just choose.

Color-separated image information of the original image is scanned by the scanning head (3) and stored in the storage device (4) in the form of image density information and image position information. Information (8) is also included, and therefore, the positional correspondence relationship between the positional information of the input start point and reference point (5) and the color separation image information is determined. In addition, as shown in Figure 4, the desired reference points (QO) (Ql) (Q2) on the layout designation sheet (QO) (Ql) (Q2) on the layout designation sheet (9) and the reference point (R) in the image of the original are corresponded to the layout designation sheet (9) as shown in FIG. The reference point (Q
O) (Ql) (Q2) Determine the coordinate axes on the layout designation paper from Ic. Such position information can be easily obtained using a position reading device such as a digitizer table, but may also be obtained by any other arbitrary means, which is shown as a position reading device αυ in FIG.

On the other hand, the enlargement magnification of how many times the image of the original document (2) is finally enlarged is also determined and stored in the storage device (4). The magnification can be measured by any known means, such as an automatic magnification measuring device.
In FIG. 3, the automatic magnification measuring device is shown as 0.

The storage of the necessary data is completed as described above, and based on these data, the arithmetic unit 0 performs arithmetic processing to obtain output position information, and uses this output position information to output the output device Q4.
) to output a predetermined image at a predetermined position. The output devices o and a are output heads (15
1 and an exposure drum (I6), and outputs a predetermined image on a photosensitive film (+71) attached to the exposure drum αe based on output position information.

In order to obtain the output position information based on the above-mentioned human power data, the following can be done.

Input the position coordinates of the starting point (no) and reference point (R), respectively.

If P(x 1, y+) 几(xz, Y2), then the distance between 1's can be expressed by the following equation if expressed by the X component and the X component.

On the other hand, the position coordinates of the point (R') on the layout designation sheet (9) corresponding to the reference point (5) and the reference point (Q o ) on the layout designation sheet (9) are R' = (xs, Y5). ) If Qo=(xz, y4), then the distance between QoR,' can be expressed by the following equation in terms of the X component and the X component.

If the magnification is M, then the input start point (point (P') on the designated layout sheet (9) corresponding to ``no'') and the reference point (point (R') on the designated layout sheet (9) corresponding to the ladle) The distance between y7 can be expressed by the following equation in terms of the X component and the X component.

Therefore, the distance between QoP's can be expressed by the following equation in terms of the X component and the X component.

As described above, the corresponding positional relationship on the layout designation paper between the reference point (QO) on the layout designation paper and the point (P') corresponding to the input-to-start point (P) is determined, and the trimming frame α1 and the manual The corresponding positional relationship between the starting point (P) and the point (P) corresponding to the start point (P) is also easily determined, and these are used as output position information.

The output device α4 can be controlled as follows based on the output position information.

Reference points (Qo), (Ql), (Q
Set the reference points on the output device side corresponding to 2) (Fo
), (Fl), and (F2), and let the points on the output device Q41 corresponding to the points (P') and (R') on the layout designation sheet (9) be (P and (R'), respectively). .

In this way, the positional relationship between R" and P" on the output device, F
The positional relationship between o and P'' is determined, and the positional relationship between P'' and the trimming frame a on the output device corresponding to the trimming frame OI is also determined. In this way, the output head detects the position of the point (P) corresponding to the manual starting point (P) with respect to the reference point (Fo) on the output device I, and does not yet start outputting at this position.

Output will start from the trimming frame (output start point 08 in 101').

In reality, output is performed by attaching a photosensitive film OD to the output device and exposing it to light, or by attaching a printing plate to the output device and engraving directly on it. iru.

As explained above (according to the present invention, the conventional method uses stored image information and layout information to instruct layout processing while viewing a monitor TV screen using an expensive layout scanner's arithmetic unit). is completely different,
Information necessary for layout can be stored in advance, and layout processing can be performed using this information, so there is no need to perform layout processing while looking at the monitor TV screen. The population rate will greatly improve.

[Brief explanation of the drawing]

Figures 1 and 2 are explanatory diagrams of the relationship between attachment of a manuscript to a manuscript drum and output, Figure 3 is a detailed diagram of the present invention, and Figures 4 and 5 are layout specification sheets and output, respectively. An explanatory diagram of the correspondence of control information in the device is shown. (1)...Document loading device (2)...Document (3)
...Scanning head (4)...Storage device (5)...
Position detection device (6) (car...pulse generator (8)
... Counter (9) ... Layout designated paper aω...
・Trimming frame Qll...Position reading device ano...
・Automatic magnification measuring device Qto・Arithmetic device Q4)...
Output device (151... Output head (IF5...
Exposure drum 0η...Photosensitive film a...Output starting point Patent applicant Toppan Printing Co., Ltd. Figure 3 Figure 4 Figure 5

Claims (3)

[Claims] (1) To mount a document on the document mounting device of a color scanner at a predetermined angle, find the positional information on the document mounting snow of the desired reference point and input start point in the image of the document, and separately place the document on the layout designated paper. The position information on the layout designation sheet of the point corresponding to the desired reference point and the reference point in the image of the original document is obtained, and the image input from the input start point is calculated based on this position information and separately obtained magnification information. An image processing method characterized by controlling an output position. (2) The image processing method according to claim 1, further comprising: obtaining position information on the layout designation paper for trimming the layout designation paper and simultaneously controlling trimming of the output image. (3) In an image processing device, such as a color scanner, that has a function of scanning a document and outputting a color-separated image, there is a document mounting device to which the document is attached, and a reference point in the image of the document attached to the document mounting device. a position detection device for detecting the position of the manual starting point on the document mounting device; a storage device for temporarily storing the position information detected by the position detection device; and a desired reference point on the layout designated paper and the document. (a storage device) and outputs a color-separated image based on the position information and magnification information stored in the storage device. An image processing device comprising: a calculation unit for determining a position; and an output device for outputting a color separation image at a predetermined position based on output position information determined by the calculation unit.