JPS6356971B2 - - Google Patents

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 color separation and final layout at the same time.

Color scanners equipped with such editing functions are generally called layout scanners, and after inputting the original image, the scanner outputs the image by exposing it to the film at the specified position and with specified trimming. I can do it.

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 in accordance with the final layout. This is due to the following reasons.

That is, as shown in FIG. 1, when a document 31 is attached to the document drum 30 directly relative to the reference line 32 of the document drum, the film 34 attached to the exposure drum 33 is exposed after being scanned. The resulting image 35 is also a straight image with respect to the reference line 36 of the exposure drum.

Therefore, in order to fully utilize the functions of this scanner for simultaneously processing color separation and layout, an image 37 that is oblique to the reference line 36 of the exposure drum is required, as shown in FIG. In this case, when the original 31 is attached to the original drum 30, it must be attached obliquely to the reference line 32 of the original drum. This is because the scanner itself has a function that rotates the scanned image at an arbitrary angle relative to the original before exposing it when exposing the film on the exposure drum after scanning the original. This is because they do not have it.

Technically speaking, it is conceivable to rotate the angle in the computer that processes the information for the page collection, but this would cause problems such as an increase in the capacity of the computer itself and an increase in processing time, so it would be costly and time-consuming. Due to disadvantages, such scanners are not currently in practical use.

However, since scanners having such a function are also being researched, if such a scanner appears, this type of problem will be solved.

Further layout information is required to obtain the final edited output by the layout scanner. This layout information is
Information is needed to determine the position of the cropping frame and to output the output image to a predetermined position within the cropping frame.

Conventionally, in order to obtain this layout information, the trimming frame and the original image are reproduced on a monitor TV, the trimming frame and/or the original image are moved, the trimming frame is placed at a predetermined position, and the trimming frame is placed at a predetermined position within the trimming frame. It was common to obtain layout information by arranging the original image at the position of .

The reason for adopting such a method is as follows. In other words, the finished size of the original image is generally larger than the size of the original itself.
The trimming position in the manuscript image is determined arbitrarily to some extent, and on the other hand, the trimming position and dimensions in the editing page can be numerically processed from the base point within the page, but the position of the manuscript image cannot be numerically processed. Attributable to the fact that it is difficult. That is, the image of the original is generally smaller than the finished size, and it is difficult to numerically determine the trimming start and end points.

When obtaining layout information using the conventional methods described above, it is generally necessary to operate expensive equipment for a long time in order to obtain layout information, which is one of the causes of reduced operating efficiency of the equipment. It's becoming one.

Furthermore, in the conventional method described above, 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 specified paper. However, the accuracy of this method is not good.

The present invention eliminates the drawbacks of the conventional methods as described above, enables numerical processing of the layout position of an image on a document, and also allows data necessary for layout to be obtained accurately and easily without using expensive equipment. The purpose is to improve the operating efficiency of expensive equipment.

That is, in the present invention, as shown in FIG. 4, a document 1 is projected onto a projection surface formed by a projection plate 9 using a projection device, and the projected image of the document is matched with the layout image of the layout designation sheet 20 placed on the projection surface. In addition to obtaining magnification information, position information of an arbitrary reference point on the original document 1 on the projection plane is also obtained, and position information of an arbitrary reference point on the layout designation sheet 20 on the projection plane is obtained, and based on these information. An object of the present invention is to provide an image processing method characterized by controlling the input of a document image to a layout scanner and the image output from the layout scanner based on the above-described method.

If trimming is necessary, the position information of the trimming frame of the designated layout sheet can be obtained, and the input start point of the document image can be controlled using this information.

Further, the positional information of the trimming frame of the designated layout sheet can be obtained, and the trimming of the output image can be controlled using this information.

According to the method of the present invention, it is possible to perform numerical processing on the layout position of an image on a document.

Further, in the present invention, as illustrated in FIG. 4, a light source, an original shelf 5 for loading an original, a projection lens 8, and a projection plate 9 for projecting an image of an original are arranged in this order. The plate 9 is equipped with a position reading means such as an XY digitizer for reading an arbitrary position on the projection plate, and the projection device is further equipped with a magnification measuring means for the projected image, and the position reading means is used to measure the magnification of the projected image. A pre-processing device for a layout scanner, characterized in that it has arithmetic processing means for obtaining data for image processing in the layout scanner based on the positional information obtained by the position information and the magnification information obtained by the magnification measuring means. This is what we are trying to provide.

According to the apparatus of the present invention, it is possible to easily obtain image position information and the like required for layout processing by a layout scanner, and magnification information can also be obtained extremely easily. Therefore, the operating efficiency of the layout scanner in the subsequent process can be improved.

Furthermore, according to the present invention, various information required for image processing can be obtained extremely easily.

The present invention will be described in more detail below by giving examples.

In the present invention, an auxiliary piece 2 is attached to the original 1 as shown in FIG. 3, if necessary. If the document 1 has a portion where a reference point or reference line can be placed, there is no need to attach the support piece 2.

However, since it is preferable not to perform any unnecessary processing on the original, the following explanation will be based on the case where the auxiliary piece 2 is attached, but the invention is not limited to this. You can. Any means can be used to attach the auxiliary piece 2 to the base paper 1, and as shown in FIG.
It is easy to use.

An appropriate position for attaching the auxiliary piece 2 may be selected in consideration of the output image.

The original 1 with the auxiliary piece 2 attached is attached to the transparent plate 3 as shown in FIG. This attachment means can also be carried out extremely easily by using adhesive tape such as cellophane adhesive tape.

The transparent plate 3 to which the original 1 is attached in this manner is further attached to a transparent plate 4 with the original 1 sandwiched between them as necessary for the purpose of protecting the original 1, preventing the original 1 from warping, and other purposes. may be overlapped.

The transparent plates 3 and 4 with the originals 1 attached thereto are loaded onto an original shelf 5 of a projection apparatus as shown in FIG. The projection device shown in FIG. 4 is an explanatory diagram of an example of the device used in the present invention, and includes a light source, a document rack 5, a projection lens 8, and a projection plate 9 arranged in this order. In the figure, the light source is covered by a cover 7 so as not to dazzle the operator.

When the transparent plate 3 with the original 1 attached thereto is loaded onto the original shelf 5 as described above, the transparent plate locking portion 6,
6' is provided.

The transparent plate locking parts 6, 6' are for assisting in loading the transparent plate 3 into a predetermined position.
The innermost part of the manuscript shelf, the left end part, the right end part, etc. of the manuscript shelf can be used.

Therefore, the end portions of the document rack itself may be used as the transparent plate locking portions 6, 6', or the end portions may be formed into protrusions.

The ends of the transparent plate 3 are positioned at the positions of the transparent plate locking parts 6, 6'.

As a result, the intersection of the transparent plate 3 and the optical axis of the projection device always becomes a fixed point Q on the transparent plate 3 (see FIG. 5).

Additionally, an arbitrary point on the document 1 or the auxiliary piece 2 is set as a reference point P, and positional information of this reference point P is obtained (see FIG. 3). (The position of P may be a single point on the document, but for simplicity, we will explain the case where it is placed on the auxiliary piece.) The position information of this reference point P when the document is attached to the transparent plate 3 is 3 and the optical axis of the projection device as the origin, its position coordinates P (Px,
Py).

Various methods can be adopted to obtain the positional information of an arbitrary point P on the auxiliary piece 2.

One of them is to set a reference point P on the support piece before or after attaching the original 1 with the auxiliary piece 2 attached to the transparent plate 3, and to determine the position of this reference point P with the original 1 attached to the transparent plate 3. may be measured. By knowing the position of the fixed point Q in advance, the reference point P
location information can be easily obtained.

As another method, as shown in FIG. Point P
By attaching the document 1 to the transparent plate 3 so that the
It is also possible to adopt a method of making it equal to the position information of P'. In this case, it is preferable to determine the positional coordinates of the point P' in advance, as this eliminates the need to newly measure the positional coordinates of the reference point P, making the work easier.

Still another method is to attach the document 1 to the transparent plate 3 so that the auxiliary piece 2 covers the point P', and then set the reference point P on the auxiliary piece 2 so as to coincide with the point P'. be able to. In this case also
This is preferable because it is not necessary to measure the position coordinates of the reference point P by determining the position coordinates of P' in advance. In the latter two of the methods described above, it is necessary to select the auxiliary piece 2 so that point P' can be seen through the auxiliary piece. As the auxiliary piece 2, a piece of synthetic resin film or the like may be used.

In the present invention, the transparent plate 3 with the original 1 attached thereon as described above is loaded onto the original shelf 5, and the image of the original is projected onto the projection plate 9.

The light source, document rack 5, and projection lens 8 can be moved together toward the projection plate 9, and the projection lens can also be moved independently toward the projection plate 9. This allows adjustment of projection magnification and focus.

On the other hand, a layout designation sheet 20 is placed on the projection plate 9,
The projection magnification and the position of the layout designation sheet are adjusted so that the layout image 21 applied to the layout designation sheet 20 matches the projected image of the original.

FIG. 6 is an explanatory diagram when the projected image and the layout image 21 on the projection plate 9 match. In this state, the finished magnification of the original is measured to obtain magnification information. A magnification automatic measuring device that can automatically measure magnification is known, and if this is employed, magnification information can be easily obtained.

13 in Fig. 4 is this automatic magnification measuring device,
The magnification is automatically displayed on this device.

The present invention further obtains positional information on the projection plate 9 of a predetermined point S placed at an arbitrary position on the layout designation paper in a state where the projected image and the layout image match. In this case, the trimming frames (A B C in Figure 6) on the designated layout paper
By obtaining positional information on the projection plate 9 in D), work efficiency can be further improved. The position information of the predetermined point S and the position information of the trimming frame can be obtained extremely easily if the projection plate 9 is an automatic position reading device such as an XY digitizer table.

When obtaining position information using an XY digitizer, the position information can be obtained by moving the cursor 17 to the location where the position should be measured.

In addition, when obtaining the position information of point P on the manuscript,
It is also possible to determine the position of the projection point P'' on the projection plate and obtain the position information of the point P on the document from the position information of the point P''.

The concept of calculation processing for these positional information is easy to understand if the origin is the intersection R of the optical axis of the projection device with the projection plate.

The position information of any point P on the document obtained in this way, the magnification information, the position information of a predetermined point S, and the position information of the trimming frame are input to and output from the layout scanner of the document, which will be described later. used for control.

It has already been mentioned that it is convenient if the document is attached at a predetermined angle beforehand when it is attached to the document drum, since there is no need to rotate the input image information.

Means for attaching the original to the original drum at a predetermined angle are disclosed in Japanese Patent Application Laid-Open No. 55-21033 and Japanese Patent Application Laid-Open No. 1987-21033.
Publication No. 33131, Japanese Unexamined Patent Publication No. 55-50235, Japanese Unexamined Patent Publication No. 1987-50235
- It is described in Publication No. 64238, etc., and can be selected as appropriate. By the way, the registration mark marked on the layout designation sheet is often used as a reference for coordinates for plate making, so an example of using this to create a reference line for attachment to the document drum is as follows. As shown in FIG. 4, facing registration mark marks 15, 15 or 16, 16 are provided on the layout designation sheet. As disclosed in the above-mentioned publication, the projected image and the layout image are made to match by means such as moving or rotating the layout designation sheet, and when the projection image and the layout image match, the facing registration mark 15 , 15 or 16, 16, and the angle formed by the transparent plate locking portion 6 or 6' is determined in advance.

Next, the transparent plate 3 is removed from the document shelf 5, and with the document 1 still attached, the angle between the side that was in close contact with the transparent plate locking portion 6 or 6' and a straight line that is parallel or perpendicular to the plate is determined as described above. A straight line 43 is drawn on the auxiliary piece 2 so as to form an angle between the straight line obtained by connecting the facing register marks determined in step 1 and the transparent plate locking part. Any means can be used to determine the angle, and any known means may be used as appropriate, but it is convenient to use a universal ruler 10, generally referred to as the trade name Drafter, as shown in FIG.

To draw a straight line 43 on the auxiliary piece 2, use a universal ruler to find the angle, and also make sure that the side of the transparent plate that was in contact with the transparent plate locking parts 6, 6' is
Transparent plate locking part 1 so that it is parallel or perpendicular to 6'
1, 11', and 11'', and can be easily applied using the universal ruler 10.

The upper surface of the transparent plate mounting table 18 is a light table 12
This makes it easy and convenient to work with.

As already explained with reference to FIGS. 1 and 2, this straight line 43 is used as a reference for how much the original should be tilted with respect to the reference line of the original drum when the original is mounted on the original drum. The original is attached to the original drum so that the straight line 43 is parallel or perpendicular to the reference line of the original drum. Whether the straight line 43 is parallel or perpendicular to the reference line of the document drum depends on the required layout information, and is determined as appropriate.

After the original 1 is mounted on the original drum in this way, the positional information of an arbitrary point P on the original (or the point P'' on the projection plate), the positional information of an arbitrary point S on the designated layout paper, and the magnification information are obtained. The input of the document image to the layout scanner and the output position of the output image by the layout scanner are controlled based on the following.

Furthermore, trimming of the output image can be determined by using the trimming position information. Furthermore, if the trimming position information is obtained on the projection plate, the trimming position on the document can be easily obtained in some cases, and the input can be completed only with the trimming part, which is convenient.

Control of input and output of the layout scanner is performed as follows.

When the original is projected in FIG. 6, a predetermined point Q is projected onto the intersection R between the optical axis and the projection plate.

Therefore, the coordinates of the projection point P'' of the reference point P on the projection plate are P'' (mPx, mPy) where the magnification is m.

The coordinates of one point A in the trimming frame are A (Ax, Ay)
Then, the distance between P″ and A can be expressed as x component and y component as follows: |mPx−Ax| |mPy−Ay|

If we replace this with the distance on the color film, the distance from the reference point P is |mPx−Ax/m|=|Px−Ax/m| …in the direction perpendicular to the scan |mPy−Ay/m|=|Py−Ay /m|...It is expressed in the scan direction, and this is the starting point for trimming on the document.

For the other trimming frames B, C, and D, the distances to P'' are found in the same way, and the distances to P are also found. Figure 7 shows the trimming on the document corresponding to one point A of the trimming frame. FIG. 3 is an explanatory diagram of a starting point A'.

On the other hand, if the coordinates of a predetermined point S placed at an arbitrary position on the layout designation paper are S (Sx, Sy), then the distance between the point S and the projection point P'' can be expressed as x and y components as |Sx− mPx｜｜Sy−mPy｜.

Similarly, the distance between point S and trimming frame A is expressed as |Sx-Ax| |Sy-Ay|. Other points on the trimming frame are obtained in the same way.

In this way, the relationship between the point S on the designated layout paper and the point P on the auxiliary piece, and therefore the point on the designated layout paper
The relationship between the position of P'' and the relationship between the point S and the trimming frame are associated.

Therefore, after the original is attached to the original drum as described above, input and output of the scanner are controlled depending on the position information. Control methods can be roughly divided into the following two types.

That is, the first method is to start input from the position of point P in FIG. 7, and input information at this point P to the point on the output film 34 in FIG.
It is controlled to be in the PF position. Here, point PF is the point corresponding to point P'' on the projection plate,
Point SF is the point corresponding to point S on the layout designation paper,
The relationship between point S and point P'' and the relationship between point SF and point PF are the same.Note that at the position of point PF, the image is not actually output, but the trimming frames A, B, C, D Actual output is performed from point AF corresponding to point A on the trimming frame in accordance with the position information from .

In addition, in the second method, input is started from point A' on document 1, and the input information at this point A' is
The control is performed so that the point AF on the output film 34 is located as shown in the figure. In this case, the point
Output starts immediately from the AF position.

In the above two methods, the former will result in a wider input than the actually required cropping range, but the latter will input the input wider than the actually required cropping range if the cropping frame is rectangular as shown in the figure. You can input only the trimming range.
Necessary information such as the origin of coordinates for determining position information is stored in advance in the arithmetic processing unit 14, and the necessary information is obtained by measuring magnification information and various positional information and inputting it into this arithmetic processing unit. For example, the position of point A' on the document can be calculated and displayed. Therefore, the position of point A' on the document, etc. can be easily obtained.

As described above, according to the present invention, output according to the final finished layout can be obtained extremely easily using a layout scanner.

Furthermore, according to the present invention, the output position and trimming position of an output image can be easily numerically processed without using an expensive layout scanner, and it is possible to improve the operating efficiency of the expensive layout scanner.

Further, according to the present invention, an apparatus is provided that can extremely easily obtain various information required for image processing. In general, information on the magnification of the document with respect to the finished dimensions is required in most cases, so according to the apparatus of the present invention, information on the magnification of the document with respect to the finished dimensions is required in the work of obtaining this magnification. Information can be obtained extremely easily, and work efficiency can be greatly improved.

[Brief explanation of the drawing]

Figures 1 and 2 are explanatory diagrams of the relationship between attachment of the original to the original drum and output, Figure 3 is an explanatory diagram of the original, Figure 4 is an explanatory diagram of the apparatus of the present invention, and Figure 5 is transparent. FIG. 6 is an explanatory diagram of the layout designation sheet on the projection plate, FIG. 7 is an explanatory diagram of trimming on a document, and FIG. 8 is an explanatory diagram of output to film. 1... Original document, 2... Auxiliary piece, 3, 4... Transparent plate, 5... Original shelf, 6, 6'... Transparent plate locking part,
7... Cover, 8... Lens, 9... Projection plate, 10
... Universal ruler, 11, 11', 11'' ... Transparent plate locking part, 12 ... Light table, 13 ... Automatic magnification measuring device, 14 ... Arithmetic processing device, 15, 16
...Dragonfly mark, 17...Cursor, 18...
Transparent plate mounting table, 20... Layout specification paper, 21... Layout image, 30... Original drum, 31... Original document,
32... Reference line, 33... Exposure drum, 34...
Film, 35...Image, 36...Reference line, 43
... Straight line, 50 ... Adhesive tape.

Claims (1)

[Claims] 1. A document is projected onto a projection surface by a projection device, and this projected image is matched with a layout image of a layout designated sheet placed on the projection surface to obtain magnification information, and an arbitrary standard in the document is obtained. Obtain the position information of the point on the projection plane, and also obtain the position information of an arbitrary reference point on the layout designation sheet on the projection plane, and based on this information, input the document image to and from the layout scanner. An image processing method characterized by controlling image output of. 2 Obtain the position information of the trimming frame of the specified layout paper,
2. The image processing method according to claim 1, wherein the input start point of the original image is controlled based on this information. 3 Obtain the position information of the trimming frame of the specified layout paper,
2. The image processing method according to claim 1, wherein trimming of the output image is controlled based on this information. 4. On the projection plate of a projection device in which a light source, a document rack for loading a document, a projection lens, and a projection plate for projecting an image of the document are arranged in this order, an arbitrary position on the projection plate is arranged. The projection device further includes a position reading means for reading the projected image, and further comprises a magnification measuring means for the projected image, and the position information obtained by the position reading means and the magnification information obtained by the magnification measuring means are 1. A preprocessing device for a layout scanner, comprising an arithmetic processing means for obtaining data for image processing in the layout scanner based on the data. 5. The preprocessing device for a layout scanner according to claim 4, wherein the position reading means is an XY digitizer.