JP2002171402A - Image processing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an image processing apparatus that is configured so that a specific part is segmented from one original to correctly record the segmented part to a recording medium. SOLUTION: An image segmentation section 21e provided on a read section 21 segments and reads a part of an original within a mark described on the original. An image size recognition section 21f calculates a maximum longitudinal lateral size in the read original image, and calculates and determines a center position of the original on the basis of the longitudinal lateral size. A magnification factor setting section 21g compares a size of the recording medium (recording paper) with the size of the read original image and matches the center position of the read original image with the center position of the recording medium, and then sets a magnification factor depending on the difference between the longitudinal lateral size of the read original image and the longitudinal lateral size of the recording medium. An image rotating section 21h rotates the original image at a prescribed angle.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image processing apparatus having a structure in which a specific portion is cut out from a single document and can be correctly stored in a recording medium and recorded.

[0002]

2. Description of the Related Art Generally, an auto document feeder (A) is used for a copying machine and a facsimile machine having a copying function.
DF) or a flatbed type document mounting table for reading is provided. The ADF is for continuously and automatically feeding a large number of read originals to an optical reading system and continuously reading an image from each original surface.

[0003] On the other hand, a flat bed type reading original placing table has a cover glass as a transparent original supporting plate, and a user places the reading originals one by one at a predetermined position on the cover glass. It is placed and read by an optical reading system. The reading method (FBS) using a flatbed type document table is generally called “book reading”.

In such a copying machine or an image reading apparatus such as a facsimile apparatus having a copying function, originals of various sizes are read. An image is recorded on recording paper (recording medium) of a size selected according to the document size.

In some cases, only a desired portion, such as a table or an explanatory diagram, is cut out from a single document, and the cut out portion is enlarged to record an image on a recording sheet. In such a case, it is necessary to position the original on the flatbed scanner and record an image on the recording paper so that the portion of the original to be enlarged is properly accommodated in the recording paper.

[0006]

As described above, in order to correctly fit the portion of the document to be recorded on the recording paper, the position of the document is moved several times on the flatbed scanner and the recording paper is moved onto the recording paper. Copies were made and processed by trial and error. For this reason, there is a problem that the processing is time-consuming and the operation becomes complicated.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide an image processing apparatus configured to cut out a specific portion from a single document and correctly store the cut portion on a recording medium.

[0008]

SUMMARY OF THE INVENTION It is an object of the present invention to provide an image processing apparatus, comprising: a document cutting section for partially cutting and reading a document in a mark on the document; An image size recognizing unit for recognizing the size of the read original image, a recording medium size recognizing unit for recognizing the size of the recording medium, and a scaling factor of the original image cut out and read based on the image size and the size of the recording medium. This is achieved by providing a configuration including a scaling factor setting unit that sets

According to a second aspect of the present invention, there is provided the image processing apparatus according to the first aspect, further comprising an image rotating section for rotating the cut and read original image, and a vertical and horizontal size of the rotated image, and recording of the rotated image. It is characterized in that the magnification is set based on the difference between the vertical and horizontal sizes of the medium.

According to a third aspect of the present invention, in the image processing apparatus according to the first or second aspect, the image size recognizing unit calculates a center position of the clipped image, and calculates a center position of the calculated image. It is characterized in that it coincides with the center position of the recording medium.

According to the first aspect of the present invention, the process of automatically cutting out an original and partially scaling the image of the original so as to correctly fit on a recording medium is automatically performed. For this reason, it is not necessary to perform the alignment between the image and the recording medium by trial and error, and the operation is simplified and quick processing can be performed.

According to the second aspect of the present invention, the magnification is set based on the difference between the vertical and horizontal sizes of the image rotated by the image rotation unit and the vertical and horizontal sizes of the recording medium. Therefore, by rotating the image in accordance with the transport direction of the recording medium, the image can be correctly stored in the recording medium.

According to the third aspect of the present invention, the center position of the image coincides with the center position of the recording medium. For this reason, the image can be easily recorded on the recording medium.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 2 is a schematic block diagram showing a control device of an image reading device to which the image processing device of the present invention is applied. Next, this block diagram will be described.

In FIG. 2, a control device 1 of the image reading apparatus is shown.
1 has a control unit 12 for processing various signals and data. The control unit 12 is constituted by, for example, a CPU (Central Processing Unit).

The control unit 12 includes a line control unit (NCU) 1
4. Modem 15, Image memory 16, RAM 17, ROM
18, display unit 19, operation unit 20, reading unit 21, recording unit 2
2. The encoding / decoding unit 23 is connected.

The line control unit 14 is connected to the external line 13 and detects transmission of a dial pulse corresponding to the dial number of the other party and detection of an incoming call. The modem 15 modulates / demodulates data transmitted / received to / from a communication terminal device such as a facsimile machine of the other party, and connects to the line control unit 14.

The image memory 16 stores image data of a read image.
And the received image data. The RAM 17 stores management data for reservation transmission or memory reception. The ROM 18 stores data and programs necessary for various operations of the image reading apparatus.

A cathode ray tube (CRT) or a liquid crystal display (LC)
Various messages necessary for the operation of the image reading apparatus are displayed on the display unit 19 using D). An operation unit 20 including a keyboard, a mouse, and the like instructs various operations and stop of the image reading apparatus. The reading unit 21 reads an image of a document.

The recording section 22 prints an image on recording paper. The image is printed on both sides of the recording paper or on one side of the recording paper. Encoding / decoding unit 23
Encodes the image data of the read image by a predetermined encoding method, and decodes the received image data. Note that a clock unit may be provided in the control device 11 to count the current time, and the reception time may be stored in the communication management record using the output of the clock unit.

The reading section 21 includes an image processing circuit and a shading RAM for temporarily storing data obtained by a shading correction operation. The read image is subjected to various types of image processing by an image processing circuit, and then subjected to a binarization process.

The shading correction is a correction for compensating for variations in signal level in a read image. In this correction, a correction coefficient of the signal level is obtained before reading the original surface, and the correction coefficient is read and the image data is read.
It is used for correcting the signal level of each pixel data in the data.

FIGS. 3 to 5 are explanatory diagrams of the processing of the present invention. In FIG. 3, reference numeral 1 denotes a single document, and 2 denotes a specific portion of the document to be recorded on a recording sheet (recording medium). In this example, the portion corresponds to the upper left portion of the single document. Reference numeral 3 denotes a mark on which a red line or the like surrounding a specific portion 2 of the document is entered. Instead of writing a mark with a red line or the like, a specific portion 2 of the document may be designated by a tablet on the FBS. In this case, a specific portion 2 of the document is marked by specifying a range with a tablet on the FBS.

In FIG. 4, reference numeral 4 denotes a recording medium, and reference numeral 5 denotes an image obtained by enlarging an image obtained by reading a specific portion 2 of the document and recording the image on the recording medium. Image 5 recorded enlarged
Is set such that the center position thereof coincides with the center position of the recording medium 4. As described above, since the center position of the enlarged image 5 is aligned with the center position of the recording medium 4, the image can be easily viewed. In addition, since the process of correctly storing the image 5 in the recording medium 4 is automatically performed, the processing time is shortened and the operation of the user is simplified.

FIG. 5 shows a recording medium 6 conveyed in the horizontal direction.
FIG. 3 is an explanatory diagram showing an example of recording an image obtained by reading a specific portion 2 of the original. Reference numeral 9 denotes the read image.
The image is recorded on the recording medium 6 after being rotated by 0 degrees and enlarged so that the magnification is set so that the center position becomes the center position of the recording medium 4. As described above, when the read image is rotated and recorded on the horizontally long recording medium, when the transport direction of the recording medium is set in the horizontally long direction, the material may be easily read.

FIG. 6 is a flowchart showing the processing procedure of the present invention. Next, this flowchart will be described.

(1) In step S1, a function setting processing program is started, and in step S2, a method of setting a range of a specific portion cut out from one document is selected. In step S3, a method of surrounding a necessary portion with a mark such as a red line is selected. In step S4, a range designation method using a tablet on the FBS is selected.

(2) Next, a designated sheet (recording medium) is set in the process of step S5. Subsequently, in the process of step S6, it is determined whether or not the setting is such that the image is rotated as necessary. If the result of this determination is NO, then the original is read in the processing of step S7, and then the maximum value in the vertical and horizontal directions within the range specified in the processing of step S8 is detected, and the center position is calculated.

(3) If the decision result in the step S6 is YES, the original is read in the processing in a step S9, and the maximum value in the vertical and horizontal directions within the range designated in the processing in the step S10 is detected. Calculate the position. Next, step S
At 11 the image is rotated.

(4) In the process of step S12, the designated paper is aligned with the calculated center position, and the margin of the read original data is calculated. Next, in the process of step S13, the image is enlarged or reduced so that the margin becomes an optimum value. As described above, since the scaling ratio for enlarging or reducing the image is set so that the margin becomes the optimum value, the image can be recorded on the designated paper in a legible manner. In the process of step S14, a subroutine process of the printing process is performed.

FIG. 1 is a block diagram partially showing an example of the reading section 21 of the present invention. In FIG. 1, reference numeral 21a denotes a charge coupled device (Charge Coupled Device).
(ce, CCD) to read the image of the original. The image data of the read original is converted from analog data to digital data by the A / D converter 21b. Next, the shading correction circuit 21c compensates for variations in signal level as described above.

The shading correction circuit 21c includes a shading correction circuit 21c.
A shading RAM for temporarily storing data obtained by the dengue correction operation is provided. The image processing circuit 21d is provided with a γ (gamma) correction circuit, a smoothing circuit, an edge enhancement circuit, and the like for improving the image quality. The image processing apparatus further includes a binarization processing circuit for performing various image processing on the read image by the image processing circuit and then performing a binarization process.

The document cutout section 21e is a mark 3 shown in FIG.
Is cut out and read. Image size recognition unit 2
1f calculates the vertical and horizontal maximum sizes of the read document image, and calculates and determines the central position of the document based on the vertical and horizontal maximum sizes.

The magnification setting section 21g compares the size of the recording medium (recording paper) with the size of the read document image, and adjusts the center position of the read document image to the center position of the recording medium. Then, the magnification is set based on the difference between the vertical and horizontal sizes of the read original image and the vertical and horizontal sizes of the recording medium.

The image rotating section 21h rotates the read document image by a predetermined angle. When the image is rotated, a predetermined scaling factor is set for the rotated image by the scaling factor setting unit 21g. The recording unit 22 is provided with a detection sensor 22a that detects the vertical and horizontal sizes of the recording medium (recording paper).

In the above example, a specific portion of one document is cut out, and the read document image is enlarged and recorded on a recording medium. The present invention can also be applied to a case where a large document such as a design drawing is cut out and a read document image is reduced and recorded on a recording medium. As described above, the magnification is set to an enlargement or reduction according to the size of the cut-out document and the size of the recording medium.

[0037]

As described above, according to the first aspect of the present invention, a process of automatically cutting out an original and partially scaling the image of the original so as to correctly fit on a recording medium is automatically performed. I have. For this reason, it is not necessary to perform the alignment between the image and the recording medium by trial and error, and the operation is simplified and quick processing can be performed.

According to the second aspect of the present invention, the magnification is set based on the difference between the vertical and horizontal sizes of the image rotated by the image rotation unit and the vertical and horizontal sizes of the recording medium. Therefore, by rotating the image in accordance with the transport direction of the recording medium, the image can be correctly stored in the recording medium.

According to the third aspect of the present invention, the center position of the image coincides with the center position of the recording medium. For this reason, the image can be easily recorded on the recording medium.

[Brief description of the drawings]

FIG. 1 is a block diagram partially showing an image processing apparatus according to an embodiment of the present invention.

FIG. 2 is a block diagram of a control unit of the image reading apparatus.

FIG. 3 is an explanatory diagram showing processing of the present invention.

FIG. 4 is an explanatory diagram showing the processing of the present invention.

FIG. 5 is an explanatory diagram showing a process of the present invention.

FIG. 6 is a flowchart showing a processing procedure of the present invention.

[Explanation of symbols]

 Reference Signs List 11 control device 12 control unit (CPU) 21 reading unit 21a CCD 21b A / D conversion circuit 21c shading correction circuit 21d image processing circuit 21e image cutout unit 21f image size recognition unit 21g scaling setting unit 21h image rotation unit 22 recording Unit 22a Recording paper size detection sensor

[Procedure amendment]

[Submission date] March 27, 2001 (2001.3.2)
7)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0001

[Correction method] Change

[Correction contents]

[0001]

[ 0001 ] 1. Field of the Invention [0002] The present invention relates to an image processing apparatus configured to cut out a specific portion from a single document and to correctly store the cut portion on a recording medium.

Claims (3)

[Claims] An image size recognition unit for recognizing a size of a document image cut out and read;
A recording medium size recognition unit that recognizes the size of the recording medium;
An image processing apparatus, comprising: a scaling ratio setting unit configured to set a scaling ratio of a document image cut out and read based on the image size and the size of a recording medium. 2. An image rotating unit for rotating the cut and read document image, wherein a scaling factor is set based on a difference between a vertical and horizontal size of the rotated image and a vertical and horizontal size of a recording medium. The image processing device according to claim 1, wherein 3. The image size recognizing unit calculates a center position of the cut-out image and matches the calculated center position of the image with a center position of a recording medium. An image processing apparatus according to claim 1.