JPH0493275A - Image filing device - Google Patents

Abstract

PURPOSE:To prevent the shortage of an image by a method wherein a printable area for an image to be outputted is calculated, an image reduction ratio is determined, and the image is reduced and printed within the printable area. CONSTITUTION:In an effective image recognition part 15, an effective image out of a printable area is discriminated from a calculated address. In the absence of the overflow of an effective image, the image in an image memory 9 is transferred to a printing memory 7 to be printed in a printing part 8. If an effective image is present out of the printable area at the right and left ends or the upper and lower ends, a reduction ratio is calculated by an overflow value, and the image is thinned out in an image reduction part 16, written in the printing memory 7, and printed in the printing part 8. If an effective image is present at either the right or left end or either the upper or lower end, the presence of a margin in the printable area at the opposed end is discriminated, and the image is shifted in an image shift part 11, transferred to the printing memory 7, and printed in the printing part 8. In this manner, all the image can be printed without the shortage of an effective image existing out of the printable area.

Description

Detailed Description of the Invention [Field of Industrial Application] The present invention recognizes an image outside the effective printing area in an image file device, and determines the overall movement amount or reduction based on parameter values that define the image size and printing area. The present invention relates to an image file device that determines a ratio and prints out an image within a designated print area.

[Conventional technology]

Regarding image reduction and printing, please refer to JP-A-61-2.
No. 67126 and Japanese Patent Application Laid-Open No. 63-8979. The plotter control devices disclosed in these publications are capable of enlarging the entire input image.

The image is reduced and output to fit the specified paper. On the other hand, although the image processing apparatus prints a part of the multi-window displayed in a reduced size, no consideration is given to correcting the lack of surrounding valid images.

[Problem to be solved by the invention]

In the above-mentioned conventional technology, when inputting an A4 size document using a scanner, for example, the entire document can be input.

However, when outputting this input document using a printer, due to the limitations of printer equipment, for example, on A4 size paper, there are several blank spaces on the top, bottom, left and right sides of the paper that cannot be printed.
Since ~10-odd I is required, there is a problem that characters written on the edge of the paper of the input manuscript are not output when printing. This problem is caused by the fact that it is technically difficult to print all the way to the periphery of pressure paper using, for example, a laser beam printer. Therefore, it is necessary to print with a margin around the periphery, and in the past, in order to eliminate image defects, it was unavoidable to print on printing paper with a large circumference.

SUMMARY OF THE INVENTION An object of the present invention is to solve these problems and provide an image file device that prints out all read images on printing paper of the same size without missing any images.

[Means to solve the problem]

In order to achieve the above object, an image is read out from the image recording section in which the image read by the image input section is recorded, and
For each image size in advance, or.

The printable area is determined based on parameters set for each printing device. Next, valid images outside the printable area are checked in the image memory to see if all the read images are within the printable area.

Vertical orientation because there are many characters and symbols in this area.

A valid image is recognized by determining the continuity of black dots in the horizontal direction. At this time, the memory address where the valid image is located is collected, and the extent to which the valid image protrudes from the printable area is calculated. The reduction ratio of the image is determined from the amount of protrusion of the effective image and the printable area, and the entire image is thinned out so that only the necessary portion, that is, the effective image outside the printable area, falls within the printable area. When the effective image is protruding from the top and bottom, the image is thinned out in the horizontal direction, and when it is visible from the left and right, the image is thinned out in the vertical direction. When the thinning is completed, the thinned data is transferred to the print memory and printed out.

Also, when it is determined that the valid image outside the printable area extends only to one side of the left and right, or one side of the top and bottom,
It recognizes whether there is a margin with a size that matches the protrusion dimension inside the edge of the printable area on the side opposite to the protruding side, and if there is a margin, it is only the size of the protruding valid image. , shift the entire image to the opposite side, transfer the data to the print memory, and print it out.

In addition, in order to print out an image read out from the single image recording section with a margin around it, the print range is calculated from the information specified by the parameter, and the valid image outside the print range is printed out with black dots. determine and recognize the continuity of the black dots or the aggregation of black dots and collect the memory address at that time,
Calculate how much the effective image protrudes outside the print area, determine the image reduction ratio from the amount of the effective image protrusion and the print range, perform calculation thinning so that all the valid images fit within the print area, and then print. Write to memory, print out the contents of memory.

[Effect]

The correction method of the present invention for preventing deletion of effective images during printout is as follows:
When reading a document image, the printable area is determined based on the size specification in the image input section and the parameter value of the pre-specified non-printable area or the parameter value of the surrounding all white area for each image size or printing device. decide. The image read out from the image recording unit is stored in the image memory for -1 days,
The presence or absence of a valid image outside the printable area is determined to be a valid image if the continuity or aggregation of black dots in the vertical and horizontal directions exceeds a specified value. After recognizing that valid image,
The address value of the memory is stored, and the maximum value of the effective image protrusion is calculated. The reduction ratio between the maximum area of this effective image and the printable area is determined and the reduction is automatically performed. Or, as a result of determining the valid image outside the printable area, if the valid image protrudes only on one side in the horizontal direction or one side in the vertical direction, move the valid image inside the edge of the printable area on the opposite side. It is determined based on the continuity of white data whether there is a margin corresponding to the protruding value of the effective image, and the effective image is automatically moved by the protruding area. In this way, the image is automatically reduced without operator intervention, or By moving, a valid image is reliably printed out, so it is possible to prevent a missing image from being printed out.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 to 6. FIG. 1 shows an overall block diagram of an image file device, showing an image input section 1 for reading and inputting an original image. A control processor 2 that controls the system, an operation unit 42 that gives system operation instructions, a display unit 3 that displays images or operation guidance, etc., and a control memory 12 that stores operation programs.
．． An image recording unit 13 that records the image input by the image input unit 1, compresses the image input by the image input unit 1 in order to write it to the image recording unit, or expands the data read from the image recording unit. an image processing section IO2 for temporarily storing image data; a print memory 7 for storing print data for printing out image data, etc., and a printing section 8 for printing out the contents of the print memory 7 on paper. Parameter section 5 which gives the unprintable area for each paper size according to the performance of the printing section 8. A print area calculation unit 14 that calculates a print area from the information in the parameter unit 5. Effective image recognition unit 152 that determines valid images outside the printing area; Image reduction unit 162 that reduces and thins out images based on the image reduction ratio; Image moving unit 11 that moves images. These are connected by a bus 6.

An example of a digital printer used in the printing section 8 of the image file device is a laser printer. This laser printer emits a laser beam onto a photoconductor to create a latent image, attaches toner to create a visible image, and prints by transferring and fixing the toner onto paper.The toner on the photoconductor is transferred. When removing the paper that adheres to the photoconductor due to static electricity, it is necessary to provide a margin because it will not peel off easily if there is an image on the leading edge.Additionally, it is necessary to provide margins at the left, right, and rear edges to avoid paper feed skew, etc. A margin is provided to prevent stains caused by toner that does not arrive at Transfer 8. The value of this margin differs for each print paper size or for each connected printing device.

To read and register a document image, the document to be read is set on the image input section 1, and the document image is read by operating a read key on the operation section 4. The read image is temporarily stored in the image memory 9 and displayed on the display unit 3. Next, by operating the write key on the operation unit 4, the data in the image memory 9 is transferred to the image processing unit 1.
0 and is registered in the image recording unit 13 while being converted into compressed data. At this time, the title given to the image and the size information of the read image are also stored.

Next, the case of searching and printing registered images will be explained. The title of the image to be searched for is input by key operation on the operation unit 4. The title of the image recording unit 13 is read and it is determined whether the same title is registered.

When the same title is found, the image and image size information are searched and read from the image recording section 13, and the image processing section 10
The data is decompressed and stored in the image memory 9, and the image is displayed on the display section 3. When printing this image, first print a second image for each image size or printing device.
The non-printable areas A, B, C, and D shown in the figure are input by key operations on the operation unit 4. When the value of this non-printable area is determined for each image size or device-specific, it can also be given as an initial value in advance and automatically set.

By setting the values of non-printable areas A, B, C, and D, printable areas E and F are determined for each paper size6.
Further, this information is stored in the parameter section 5.

When printing the image shown in FIG. 3 (1) retrieved from the image recording section 13, when the print key on the operation section 4 is operated, the image size information from the image memory 9 is read out and then input before the parameter section 5. The image size or the value of the unprintable area of the device is read out and the printable area is calculated. The image data stored in the image memory 9, whose areas are E and F, has a constant number of dots per line for each image size, so the memory address for each line also has a constant cycle.

Based on the printable area calculated from this, the address of the printable area of the image memory 9 is calculated. Once the address of this printable area is calculated.

An address space outside the printable area is required. The addresses outside the printable area of the image memory 9 are sequentially read out, the continuity of black data is recognized, and the amount of protrusion of the effective image is determined.

For example, when looking at character A in the image data of FIG. 31, it becomes as shown in FIG. This means that the higher the dot density, the more continuous the dots are with respect to the line thickness. If it is 400 dots/inch, the size of one dot is 63.5.
For two dots, it is 127 μm. If a line drawn with a commonly used 0.5 inch mechanical pencil is simply replaced with a dot, the line becomes 500 μm, resulting in continuous black data of approximately 8 dots. From this, it is possible to recognize a valid image by looking at the continuity in the horizontal or vertical direction.

In this way, the valid image is determined for each side, and the protrusion values J, L, and M of the valid image outside the printable area are calculated. By adding this value to the printable areas E and F, the effective image areas G and H are determined. When the reduction ratio is calculated from this, the horizontal F E direction is - and the vertical direction is 100. From this reduction ratio, the vertical and horizontal reduction values are determined in proportion to the dot density. The reduced image looks like FIG. 3 (2). This image is moved to another area of the image memory 9, then moved to the print memory 7 where print data is stored, and printed by the printing section 8.

As a result, all valid images are printed in the printable areas E and F on the printing paper as shown in FIG. 3, and there are no missing five images.

Next, the image retrieved from the image recording unit 13 is shown in FIG. 4 (1).
As shown in FIG. Is there a margin P for the protrusion value R in the lower end printable area, and is there a margin T for the protrusion value S in the right end printable area opposite to the left edge protrusion value S? If there is a margin, the image moving unit 11 moves it to the right by the S area and downward by the R value, and stores it in the image memory 1.
Write in 9. Next, it is transferred to the print memory 7 and printed out to the printing unit 8. The printing result will be as shown in Figure 4 (2),
All valid images are printed within the printable areas E and F.

Next, the flow of operation will be explained with reference to the flowchart of FIG.

Enter the title information of the image to be printed on the operation unit 4, and start execution by operating the print key on the operation unit 4. Size A of the non-printable area for each image size or device.
, B, C, and D are input by key operations on the operating section 4 and stored in the parameter section 5. Based on the input title information, an image matching the title is read from the image recording section 13, expanded by the image processing section 10, and written into the image memory 9.

At the same time, the image size is also read from the image recording section 13 and written into the image memory 9.

The parameter information of the non-printable area matching the image size is read from the parameter section 5, and the printable areas E and F are calculated by the print area calculation section 14. From this printable area calculation result, the address of the printable area of the image written in the one-image memory 9 is calculated.

Based on the calculated address, a valid image recognition unit 5 determines whether the valid image is outside the printable area. If there is no valid image protruding, the image in the image memory 9 is moved to the print memory 7 and printed by the printing unit 8. If there is a valid image outside the printable area, if it is on both the left and right edges or on both the top and bottom edges,
A reduction ratio is calculated based on the protrusion value, the image reduction unit 16 performs image reduction, and the image is written in the print memory 7 and printed by the printing unit 8. If the valid image is at one end of the left and right or one end of the top and bottom, it is determined whether there is a margin within the printable area at the opposite end, and the image is moved by the image moving unit 11 and stored in the print memory 7.
The printing unit 8 executes printing.

In this way, the entire image can be printed 8 without missing any valid images outside the printable area.

〔Effect of the invention〕

According to the present invention, a non-printable area is set in advance according to the performance of the printing device, and by recognizing valid images outside the printable area and reducing the thinning of the image, the deletion of valid images is prevented and printed. can do. This is particularly effective when printing drawings in which company names, numbers, symbols, etc. are written around the documents.

Further, if there is a margin within the printable area on the opposite side where the effective image protrudes, by moving the image, it is possible to prevent the effective image from being missing.

[Brief explanation of the drawing]

Figure 1 is a block diagram of an embodiment of the present invention, Figure 2 is an explanatory diagram of a printed image, Figures 3 and 4 are explanatory diagrams of a read image and a printed image, and Figure 5 is an illustration of effective image recognition. FIG. 6 is an operational flowchart. DESCRIPTION OF SYMBOLS 1... Image input part, 3... Display part, 5... Parameter part, 7... Print memory, 9... Image memory, 11... Image moving part, ]3... Image Recording unit, 15... Effective image recognition unit, 2... Control processor, 4... Operation unit, 6... Bus. 8... Printing section, 10... Image processing section, 12... Control memory, 14... Print area calculation section, 16... Image reduction section. Figure 3 of Figure 4: Lame - 5 wings 1st floor

Claims (1)

[Claims] 1. In an image file device consisting of an image input section, display section, operation section, printing section, image recording section, etc., there is a parameter instruction section that sets the printable area according to the print image size, and a parameter instruction section that is located outside the printable area. The system is equipped with an image recognition unit and an image processing unit, calculates the printable area for the output image, determines the image reduction ratio, and prints the image reduced within the printable area to prevent image loss. An image file device characterized by: