JP2020088736A - Information processing device, image rotation method of information processing device, and program - Google Patents

Abstract

To provide an information processing device capable of aligning the direction of a first read image after rotation and the direction of a second read image after rotation.SOLUTION: An information processing device includes an acquisition part for acquiring a first read image obtained by reading a first surface of a document and a second read image obtained by reading a second surface opposite from the first surface of the document, and an information processing part. The information processing part selects one character recognition image direction between a first character recognition image direction being the direction of the first read image specified by character recognition processing to the first read image and a second character recognition image direction being the direction of the second read image specified by character recognition processing to the second read image, and the image processing part rotates the first read image and the second read image on the basis of the selected character recognition image direction.SELECTED DRAWING: Figure 16

Description

The present invention relates to an information processing device that rotates a read image read from a document, an image rotation method of the information processing device, and a program.

Conventionally, as disclosed in Patent Document 1, by performing character recognition processing on a read image read from a document, the direction of the read image is specified, and the read image is rotated based on the specified direction of the read image. There is known an image reading device.

JP, 2009-194913, A

However, both sides of the original are read by the conventional original reading device, the first read image is rotated based on the direction of the first read image on the first side of the original, and the orientation of the second read image on the second side of the original is changed. When the first read image is rotated on the basis of the rotation, the direction of the first read image after rotation may be different from the direction of the second read image after rotation. For example, for one of the first read image and the second read image, the orientation was correctly specified by the character recognition processing, but for the other of the first read image and the second read image, the orientation was erroneously identified by the character recognition processing. If specified or if the orientation of the second read image could not be identified, the orientation of the first read image after rotation and the orientation of the second read image after rotation could not be aligned.

An information processing apparatus according to the present invention includes an acquisition unit that acquires a first read image obtained by reading a first side of a document and a second read image obtained by reading a second side of the document opposite to the first side. And an information processing section, wherein the information processing section has a first character recognition image orientation that is the orientation of the first read image identified by the character recognition processing for the first read image, and a character recognition processing for the second read image. From the second character recognition image orientation that is the orientation of the second read image specified by, one of the character recognition image orientations is selected, and the information processing unit performs the first reading based on the selected character recognition image orientation. The image and the second read image are rotated.

An image rotation method of an information processing apparatus according to the present invention includes a first read image read from a first surface of a document and a second read image read from a second surface of the document opposite to the first surface. Of the first read image, which is the direction of the first read image specified by the character recognition process for the first read image, and the direction of the second read image specified by the character recognition process for the second read image. Of the second character recognition image orientations, any one of the character recognition image orientations is selected, and the first read image and the second read image are rotated based on the selected character recognition image orientation.

A program of the present invention causes a computer to acquire a first read image read from a first side of a document and a second read image read from a second side opposite to the first side of the document. A first character recognition image orientation that is the orientation of the first read image identified by the character recognition processing for the first read image, and a second read image orientation identified by the character recognition processing for the second read image. A step of selecting any one of the character recognition image orientations from a certain second character recognition image orientation, and a step of rotating the first read image and the second read image based on the selected character recognition image orientation. Let it run.

It is a figure showing a reading system provided with a reader and an information processor. It is a block diagram of a reader and an information processor. It is a figure which shows the 1st surface of a 1st original. It is a figure which shows the 2nd surface of a 1st original. It is a figure which shows the 1st surface of a 2nd original. It is a figure which shows the 2nd surface of a 2nd original. It is a figure which shows the 1st surface of a 3rd original. It is a figure which shows the 2nd surface of a 3rd original. FIG. 9 is a diagram showing a first read image and a second read image displayed on the processing side display unit when the individual rotation process and the interlocking rotation process are not performed after the reading of the first document. FIG. 10 is a diagram showing a first read image and a second read image displayed on the processing side display unit when the individual rotation process and the interlocking rotation process are not performed after the reading of the second document. It is a figure which shows the 1st read image and the 2nd read image displayed on the process side display part, when an individual rotation process and an interlocking rotation process are not performed after reading a 3rd original. It is a flow chart which shows individual rotation processing. FIG. 9 is a diagram showing a first read image and a second read image displayed on the processing side display unit when the individual rotation process is performed after the reading of the first original. It is a figure which shows the 1st read image and 2nd read image displayed on the process side display part, when an individual rotation process is performed after reading a 2nd original. It is a figure which shows the 1st read image and 2nd read image displayed on the process side display part, when an individual rotation process is performed after reading the 3rd original. It is a flow chart which shows interlocking rotation processing. FIG. 9 is a diagram showing a first read image and a second read image displayed on the processing side display unit when the interlocked rotation process is performed after the reading of the second document. It is a figure which shows the 1st read image and 2nd read image displayed on the process side display part, when an interlocking rotation process is performed after reading a 3rd original. FIG. 3 is a diagram showing a first end area and a first non-end area of a document.

An embodiment of an information processing device, an image rotation method of the information processing device, and a program will be described below. The image itself and the image data for displaying the image are referred to as an image without any particular distinction.

The reading system Sy will be described with reference to FIG. The reading system Sy includes a reading device 1 and an information processing device 101. The reading device 1 and the information processing device 101 are communicably connected.

The reading device 1 includes an ADF 3 (Auto Document Feeder), a first reading unit 5, and a second reading unit 7.

The ADF 3 conveys the original 201 set on the setting unit 9. The ADF 3 includes a setting unit 9, a supply roller 11, a plurality of conveyance roller pairs 13, a conveyance motor 15, and a discharge unit 17. The original 201 is set on the setting unit 9. In the present embodiment, of the both sides of the document 201 set in the setting section 9, the surface facing diagonally downward, that is, the surface facing the setting section 9 is referred to as a first surface 203, and facing diagonally upward. The surface, that is, the surface facing the side opposite to the setting unit 9, is referred to as a second surface 205. The supply roller 11 conveys the original 201 set in the setting unit 9 toward the discharge unit 17 by using the conveyance motor 15 as a drive source. The transport roller pair 13 further transports the document 201 transported by the supply roller 11 toward the discharge unit 17 by using the transport motor 15 as a drive source. The document 201 transported by the transport roller pair 13 is discharged to the discharge unit 17.

The first reading unit 5 is provided so as to face the first surface 203 of the transported original 201, and reads the first surface 203 of the original 201. Although not shown, the first reading unit 5 includes a light source and an image sensor. The second reading unit 7 is provided so as to face the second surface 205 of the transported original 201, and reads the second surface 205 of the original 201. Although not shown, the second reading unit 7 includes a light source and an image sensor, like the first reading unit 5.

Since the reading device 1 includes the first reading unit 5 and the second reading unit 7, the first surface 203 and the second surface of the document 201 are conveyed while the document 201 is conveyed from the setting unit 9 to the discharge unit 17. 205 and can be read. A first read image 207 (see FIG. 9, etc.) read by the first reading unit 5 from the first surface 203, and a second read image 209 (FIG. 9, etc.) read by the second reading unit 7 from the second surface 205. The reference) is transmitted to the information processing apparatus 101. The reading device 1 may be configured to include a single reading unit and read the first surface 203 and the second surface 205 of the original 201 by inverting the original 201 with the ADF 3.

The information processing apparatus 101 controls the reading device 1 and receives the first read image 207 and the second read image 209 transmitted from the reading device 1. As the information processing device 101, for example, a personal computer, a smartphone, a tablet terminal, or the like can be used.

The reading device 1 and the information processing device 101 will be described with reference to FIG. The reading device 1 includes the reading side CPU 19 (Central Processing Unit), the reading side ROM 21 (Read Only Memory), and the reading side RAM 23 (Random Access Memory) in addition to the ADF 3, the first reading unit 5, and the second reading unit 7 described above. ), a read side operation unit 25, a read side display unit 27, and a read side communication unit 29.

The reading-side CPU 19 executes the program stored in the reading-side ROM 21 by using the reading-side RAM 23, and thereby controls the reading device 1 as a whole. The reading side operation unit 25 receives an operation from the user. As the reading side operation unit 25, for example, an operation key can be used. The reading side display unit 27 displays various information to the user. As the reading side display unit 27, for example, a liquid crystal display can be used. The touch panel display may function as the reading side operation unit 25 and the reading side display unit 27. The reading-side communication unit 29 transmits/receives various commands, as well as the first read image 207 and the second read image 209, to/from the processing-side communication unit 115 described later.

The information processing apparatus 101 includes a processing CPU 103, a processing ROM 105, a processing RAM 107, an external storage device 109, a processing operation unit 111, a processing display unit 113, and a processing communication unit 115. There is. The processing side CPU 103 is an example of an “acquisition unit” and an “information processing unit”. The number of the acquisition unit and the information processing unit is not limited to one, and may be configured by a plurality of CPUs, or instead of the processing side CPU 103 or in cooperation with the processing side CPU 103, a processing circuit such as an ASIC. May be used. The processing side CPU 103 is an example of a “computer”. Similarly to the above, the computer may be configured by a plurality of CPUs, or may be configured to use a processing circuit such as an ASIC instead of the processing CPU 103 or in cooperation with the processing CPU 103.

The processing-side CPU 103 executes the program stored in the processing-side ROM 105 or the external storage device 109 by using the processing-side RAM 107, thereby controlling the information processing apparatus 101 as a whole. The external storage device 109 stores various programs, for example, a scanner driver which is a control program for controlling the reading device 1. Further, the external storage device 109 stores the first read image 207 and the second read image 209 transmitted from the reading device 1 via the processing side RAM 107 functioning as a buffer. As the external storage device 109, for example, a HDD (Hard Disk Drive) or SSD (Solid State Drive) can be used.

The processing side operation unit 111 receives an operation from a user. As the processing side operation unit 111, for example, a keyboard, a mouse or the like can be used. The processing side display unit 113 displays various information such as an operation screen for operating the reading device 1 and the first read image 207 and the second read image 209 transmitted from the reading device 1. As the processing side display unit 113, for example, a liquid crystal display can be used. The touch panel display may function as the processing side operation unit 111 and the processing side display unit 113. The processing-side communication unit 115 transmits/receives various commands as well as the first read image 207 and the second read image 209 to/from the read-side communication unit 29.

The first original 201a, the second original 201b, and the third original 201c set in the setting unit 9 will be described with reference to FIGS. The first original 201a, the second original 201b, and the third original 201c are all vertically long and long-edge bound originals. That is, the upper side 211 of the first surface 203 and the upper side 211 of the second surface 205 of each original 201 are the same side. Normally, the originals 201 are set in the setting section 9 so that the upper side 211 of each original 201 is ahead of the conveying direction 31 by the ADF 3, but in the present embodiment, the upper side 211 of each original 201 is the conveying direction 31. It is assumed that the original 201 is set so as to be behind the document.

3 shows the first side 203 of the first original 201a, and FIG. 4 shows the second side 205 of the first original 201a. A plurality of characters 213 are printed upright on the first surface 203 of the first original 201a. Similarly, a plurality of characters 213 are printed upright on the second surface 205 of the first original 201a.

5 shows the first side 203 of the second original 201b, and FIG. 6 shows the second side 205 of the second original 201b. On the first surface 203 of the second document 201b, a plurality of characters 213 are printed in an upright orientation. On the other hand, on the second surface 205 of the second original 201b, an illustration 215 representing, for example, "person" is printed in an upright orientation. That is, the characters 213 are not printed on the second surface 205 of the second original 201b.

7 shows the first side 203 of the third original 201c, and FIG. 8 shows the second side 205 of the third original 201c. The illustration 215 is printed on the first surface 203 of the third original 201c in an upright orientation. Similarly, the illustration 215 is printed in an upright orientation on the second surface 205 of the third original 201c. That is, the characters 213 are not printed on the first surface 203 and the second surface 205 of the third original 201c.

FIG. 9 shows the first read image 207 and the first read image 207 displayed on the processing side display unit 113 when the information processing apparatus 101 does not execute the individual rotation process and the interlocked rotation process described below after the first original 201a is read. 2 shows a read image 209. FIG. 10 shows the first read image 207 and the second read image displayed on the processing side display unit 113 when the information processing apparatus 101 does not execute the individual rotation process and the interlocked rotation process after the second document 201b is read. An image 209 is shown. FIG. 11 illustrates the first read image 207 and the second read image displayed on the processing side display unit 113 when the information processing apparatus 101 does not execute the individual rotation process and the interlocked rotation process after the third document 201c is read. An image 209 is shown.

As described above, the originals 201 are set in the setting section 9 so that the upper side 211 of each original 201 is rearward in the transport direction 31. Therefore, the first read image 207 and the second read image 209 of all of the first original 201a, the second original 201b, and the third original 201c are oriented 180° from the upright orientation.

In this way, when the first read image 207 or the second read image 209 is rotated from the upright direction, the characters 213, the illustration 215, etc. included in the first read image 207 or the second read image 209 are displayed to the user. It becomes hard to see. Therefore, the information processing apparatus 101 automatically corrects the orientation of the first read image 207 and the orientation of the second read image 209. The information processing apparatus 101 is provided with an individual rotation process and an interlocked rotation process in order to correct the orientation of the first read image 207 and the orientation of the second read image 209. The individual rotation process and the interlocked rotation process can be selected by the user on the operation screen displayed on the processing side display unit 113.

The individual rotation process will be described with reference to FIG. The individual rotation processing is realized by the processing side CPU 103 executing the scanner driver. The individual rotation process may be realized only by hardware.

In step S01, the processing side CPU 103 acquires the first read image 207 and the second read image 209 transmitted from the reading device 1.

In step S02, the processing side CPU 103 specifies the orientation of the first read image 207 by performing character recognition processing on the first read image 207. That is, the processing side CPU 103 detects the character 213 included in the first read image 207, and detects the detected individual characters 213 by, for example, counterclockwise rotation angles of 0°, 90°, 180°, and 270°. Rotate to match with a dictionary registered in advance. The processing-side CPU 103 specifies the rotation angle at which the character is most correctly recognized from 0°, 90°, 180°, and 270° as the direction of the character 213, and votes for the variable indicating the rotation angle. The processing-side CPU 103 specifies the rotation angle with the largest number of votes as the orientation of the first read image 207, based on the result of voting on all the detected characters 213.

In step S03, the processing side CPU 103 specifies the orientation of the second read image 209 by performing character recognition processing on the second read image 209. The specific method is the same as step S02.

In step S04, the processing side CPU 103 rotates the first read image 207 based on the first character recognition image orientation which is the orientation of the first read image 207 identified by the character recognition processing in step S02. Here, rotating the first read image 207 based on the orientation of the first character recognition image means that the first read image 207 is rotated clockwise by θ ₁ ° when the orientation of the first character recognition image is θ ₁ °. Alternatively, it means rotating in the counterclockwise direction by (360-θ ₁ )°. For example, when the orientation of the first character recognition image is 90°, the information processing apparatus 101 rotates the first read image 207 90° clockwise or 270° counterclockwise. Accordingly, the orientation of the first read image 207 is corrected so that the orientation of the first read image 207 becomes 0°, that is, the character 213 included in the first read image 207 is oriented upright. You can

In step S05, the processing side CPU 103 rotates the second read image 209 based on the second character recognition image orientation which is the orientation of the second read image 209 specified by the character recognition processing in step S03. Here, rotating the second read image 209 based on the orientation of the second character recognition image means, as in the case of the first read image 207, when the orientation of the second character recognition image is set to θ ₂ °. 2 This means that the read image 209 is rotated clockwise by θ ₂ ° or counterclockwise by (360-θ ₂ )°. The rotation direction of the first read image 207 and the rotation direction of the second read image 209 may be the same or opposite.

In step S06, the processing side CPU 103 causes the processing side display unit 113 to display the rotated first read image 207 and the rotated second read image 209, and ends the individual rotation processing.

Here, more specifically, in step S01, the processing side CPU 103 obtains the first read image 207 and the second read image 209 read from the first original 201a, and the case where the processing side CPU 103 reads the second original 201b. A case where the first read image 207 and the second read image 209 are acquired and a case where the first read image 207 and the second read image 209 read from the third original 201c are acquired will be described.

In step S01, when the processing side CPU 103 acquires the first read image 207 and the second read image 209 (see FIG. 9) read from the first original 201a, in step S02, the processing side CPU 103 The orientation of the first read image 207 is specified as 180° by the recognition processing. Similarly, in step S03, the processing side CPU 103 specifies the orientation of the second read image 209 as 180° by the character recognition processing.

In step S04, the processing side CPU 103 rotates the first read image 207 180° clockwise because the first character recognition image orientation that is the orientation of the first read image 207 identified by the character recognition processing is 180°. Alternatively, rotate 180° counterclockwise. As a result, the orientation of the first read image 207 is corrected to 0°.

In step S05, the processing side CPU 103 rotates the second read image 209 180° clockwise because the second character recognition image orientation that is the orientation of the second read image 209 specified by the character recognition processing is 180°. Alternatively, rotate 180° counterclockwise. As a result, the orientation of the second read image 209 is corrected to 0°.

In step S06, the processing side CPU 103, as shown in FIG. 13, the first read image 207 after rotation, that is, the first read image 207 in which the orientation of the image is corrected to 0°, and the second read image after rotation. The image 209, that is, the second read image 209 in which the orientation of the image is corrected to 0° is displayed on the processing side display unit 113.

In this way, when the processing-side CPU 103 performs the individual rotation processing, if the character recognition processing correctly identifies the orientation of both the first read image 207 and the second read image 209, the rotated first image is obtained. The direction of the first read image 207 and the direction of the second read image 209 after rotation can be aligned in a desired direction, that is, 0°.

When the processing-side CPU 103 acquires the first read image 207 and the second read image 209 (see FIG. 10) read from the second original 201b in step S01, the processing-side CPU 103 determines in step S02 1 The direction of the read image 207 is specified as 180°.

In step S03, as described above, the processing-side CPU 103 prints the illustration 215 instead of the characters 213 on the second surface 205 of the second original 201b, and thus the second read image 209 is obtained by the character recognition process. Can't pinpoint the direction of. Here, the orientation of the second read image 209 is originally 180°, but the processing side CPU 103 erroneously specifies the orientation of the second read image 209 as 0°.

In step S04, the processing side CPU 103 rotates the first read image 207 180° clockwise because the first character recognition image orientation that is the orientation of the first read image 207 identified by the character recognition processing is 180°. Alternatively, rotate 180° counterclockwise. As a result, the orientation of the first read image 207 is corrected to 0°.

In step S05, the processing side CPU 103 rotates the second read image 209 clockwise by 0° because the second character recognition image orientation that is the orientation of the second read image 209 specified by the character recognition processing is 0°. Alternatively, rotate 360° counterclockwise. That is, the processing side CPU 103 does not substantially rotate the second read image 209. Therefore, the orientation of the second read image 209 remains 180°.

In step S06, the processing side CPU 103, as shown in FIG. 14, the first read image 207 after rotation, that is, the first read image 207 in which the orientation of the image is corrected to 0°, and the second image not rotated. The read image 209, that is, the second read image 209 in which the orientation of the image remains 180° is displayed on the processing side display unit 113.

As described above, the direction of one of the first read image 207 and the second read image 209 was correctly identified by the character recognition processing, but the direction of the other of the first read image 207 and the second read image 209 was recognized. When the orientation is erroneously specified by the processing, the orientation of the rotated first read image 207 and the orientation of the rotated second read image 209 are aligned even if the processing-side CPU 103 performs the individual rotation processing. I can't.

When the processing side CPU 103 acquires the first read image 207 and the second read image 209 (see FIG. 11) read from the third original 201c in step S01, the processing side CPU 103 determines in step S02 as described above. In addition, since the illustration 215, not the characters 213, is printed on the first surface 203 of the third original 201c, the orientation of the first read image 207 cannot be accurately specified by the character recognition process. Here, the orientation of the first read image 207 is originally 180°, but the processing side CPU 103 erroneously specifies the orientation of the first read image 207 as 90°.

In step S03, since the processing side CPU 103 prints the illustration 215 instead of the character 213 on the second surface 205 of the third original 201c, the orientation of the second read image 209 is accurately determined by the character recognition processing. I cannot identify. Here, the orientation of the second read image 209 is originally 180°, but the processing side CPU 103 erroneously specifies the orientation of the second read image 209 as 0°.

In step S04, the processing-side CPU 103 rotates the first read image 207 90° clockwise because the first character recognition image orientation that is the orientation of the first read image 207 identified by the character recognition processing is 90°. Alternatively, rotate it 270° counterclockwise. Therefore, the orientation of the first read image 207 is 90°.

In step S05, the processing side CPU 103 rotates the second read image 209 clockwise by 0° because the second character recognition image orientation that is the orientation of the second read image 209 specified by the character recognition processing is 0°. Alternatively, rotate 360° counterclockwise. That is, the processing side CPU 103 does not substantially rotate the second read image 209. Therefore, the orientation of the second read image 209 remains 180°.

In step S06, the processing-side CPU 103, as shown in FIG. 15, rotates the first read image 207, that is, the first read image 207 whose image orientation is 90°, and the second read image that is not rotated. The image 209, that is, the second read image 209 in which the orientation of the image remains 180° is displayed on the processing side display unit 113.

As described above, when the orientations of both the first read image 207 and the second read image 209 are erroneously specified by the character recognition process, even after the processing-side CPU 103 performs the individual rotation process, the rotated image is not rotated. The orientation of the first read image 207 and the orientation of the second read image 209 after rotation cannot be aligned.

Therefore, the information processing apparatus 101 determines the orientation of the first read image 207 after rotation even when the orientation is erroneously specified by the character recognition process for at least one of the first read image 207 and the second read image 209. An interlocking rotation process that can align the orientation of the second read image 209 after rotation is provided.

The interlocked rotation process will be described with reference to FIG. This interlocked rotation process is an example of an “image rotation method”. The interlocked rotation process is realized by the processing side CPU 103 executing the scanner driver, similarly to the individual rotation process. The interlocked rotation process may be realized only by hardware.

In step S11, the processing side CPU 103 acquires the first read image 207 and the second read image 209 transmitted from the reading device 1.

In step S12, the processing side CPU 103 specifies the orientation of the first read image 207 by performing character recognition processing on the first read image 207, as in step S02. Further, the processing CPU 103 calculates the first image orientation reliability, which is the reliability with respect to the identified orientation of the first read image 207. That is, the processing-side CPU 103 votes for each character 213 included in the first read image 207, as in step S02, for a variable indicating the rotation angle at which the character is most correctly recognized. Further, the processing side CPU 103 stores the reliability of the character recognition processing for each rotation angle, and sets the average value of the reliability corresponding to the rotation angle with the largest number of votes as the first image orientation reliability.

In step S13, the processing side CPU 103 specifies the orientation of the second read image 209 by performing character recognition processing on the second read image 209. Further, the processing-side CPU 103 calculates the second image orientation reliability, which is the reliability with respect to the identified orientation of the second read image 209. The specific method is the same as step S12.

In step S14, the processing side CPU 103 determines whether the first image orientation reliability and the second image orientation reliability are both smaller than the threshold value. The threshold value is set to be larger than the reliability obtained when the orientation of the first read image 207 and the orientation of the second read image 209 cannot be accurately specified by the character recognition processing. The threshold value may be set in advance in the scanner driver, or may be set based on the user's selection operation received by the processing side operation unit 111. When the processing side CPU 103 determines that at least one of the first image orientation reliability and the second image orientation reliability is greater than or equal to the threshold value (S14; No), the process proceeds to step S15.

In step S15, the processing side CPU 103 determines whether or not the first image orientation reliability is equal to or higher than the second image orientation reliability. When the processing side CPU 103 determines that the first image orientation reliability is equal to or higher than the second image orientation reliability (S15; Yes), the process proceeds to step S16.

In step S16, the processing side CPU 103 rotates the first read image 207 and the second read image 209 based on the first character recognition image orientation that is the identified orientation of the first read image 207. Here, rotating the first read image 207 and the second read image 209 based on the first character recognition image orientation means that the first read image 207 is rotated when the first character recognition image orientation is θ ₁ °. Rotating clockwise by θ ₁ ° or counterclockwise by (360-θ ₁ )°, and rotating the second read image 209 clockwise by θ ₁ ° or counterclockwise by (360-θ ₁ )°. Means Thereby, the orientation of the first read image 207 after rotation and the orientation of the second read image 209 after rotation can be aligned. The rotation direction of the first read image 207 and the rotation direction of the second read image 209 may be the same or opposite.

On the other hand, in step S15, when the processing side CPU 103 determines that the first image orientation reliability is smaller than the second image orientation reliability (S15; No), the process proceeds to step S17.

In step S17, the processing side CPU 103 rotates the first read image 207 and the second read image 209 based on the second character recognition image orientation that is the identified orientation of the second read image 209. Here, rotating the first read image 207 and the second read image 209 based on the second character recognition image orientation means that the first read image 207 is rotated when the second character recognition image orientation is θ ₂ °. Rotate clockwise by θ ₂ ° or counterclockwise by (360-θ ₂ )°, and rotate the second read image 209 clockwise by θ ₂ ° or counterclockwise by (360-θ ₂ )°. Means Thereby, the orientation of the first read image 207 after rotation and the orientation of the second read image 209 after rotation can be aligned. The rotation direction of the first read image 207 and the rotation direction of the second read image 209 may be the same or opposite.

On the other hand, in step S14, when the processing-side CPU 103 determines that both the first image orientation reliability and the second image orientation reliability are smaller than the threshold value (S14; Yes), the process proceeds to step S18.

In step S18, the processing side CPU 103 identifies the orientation of the first read image 207 by image analysis processing other than the character recognition processing. As a method of identifying the orientation of the first read image 207 by image analysis processing other than the character recognition processing, for example, the orientation of the image is determined based on the positional relationship of the characteristic parts of the “person” included in the first read image 207. A method of specifying, a method of specifying the orientation of the image based on the positional relationship between “sky” and “ground” included in the first read image 207, and the like can be used.

In step S19, the processing side CPU 103 specifies the orientation of the second read image 209 by image analysis processing other than the character recognition processing. The specific method is the same as step S18.

In step S20, the processing side CPU 103 rotates the first read image 207 based on the first non-character recognized image orientation that is the orientation of the first read image 207 identified by the image analysis processing other than the character recognition processing. Here, rotating the first read image 207 based on the orientation of the first non-character recognized image means that when the orientation of the first non-character recognized image is α ₁ °, the first read image 207 is rotated clockwise by α. _This means rotating by ₁ ° or counterclockwise (360-α ₁ )°. Thereby, the orientation of the first read image 207 is corrected so that the orientation of the first read image 207 becomes 0°, that is, the illustration 215 and the like included in the first read image 207 are oriented upright. be able to.

In step S21, the processing side CPU 103 rotates the second read image 209 based on the second non-character recognized image orientation which is the orientation of the second read image 209 specified by the image analysis processing other than the character recognition processing. Here, rotating the second read image 209 based on the second non-character recognized image orientation means that the second read image 209 is rotated clockwise by α ₂ degrees when the second non-character recognized image orientation is α ₂ °. It means rotating by ₂ ° or counterclockwise (360-α ₂ )°. As a result, the orientation of the second read image 209 is corrected so that the orientation of the second read image 209 is 0°, that is, the illustration 215 and the like included in the second read image 209 are oriented upright. be able to. The rotation direction of the first read image 207 and the rotation direction of the second read image 209 may be the same or opposite.

In step S22, the processing side CPU 103 displays the rotated first read image 207 and the rotated second read image 209 on the processing side display unit 113, and ends the interlocked rotation process.

Here, more specifically, in step S11, the processing side CPU 103 acquires the first read image 207 and the second read image 209 read from the second original 201b and the case where the processing side CPU 103 reads the third original 201c. A case where the first read image 207 and the second read image 209 are acquired will be described.

When the processing-side CPU 103 acquires the first read image 207 and the second read image 209 (see FIG. 10) read from the second original 201b in step S11, the processing-side CPU 103 determines in step S12 that the character By the recognition processing, the orientation of the first read image 207 is specified as 180°, and the first image orientation reliability is calculated as R ₁ .

In step S13, as described above, the processing-side CPU 103 prints the illustration 215 instead of the characters 213 on the second surface 205 of the second original 201b. Can't pinpoint the direction of. Here, the orientation of the second read image 209 is originally 180°, but the processing side CPU 103 erroneously specifies the orientation of the second read image 209 as 0°, and sets the second image orientation reliability to R ₂ . It shall be calculated. Since the second read image 209 does not include the character 213 that can be recognized, the second image orientation reliability (R ₂ ) is smaller than the first image orientation reliability (R ₁ ). Further, the first image orientation reliability (R ₁ ) is larger than the threshold value, but the second image orientation reliability (R ₂ ) is a value smaller than the threshold value.

In step S14, the processing side CPU 103 determines that the first image orientation reliability is equal to or higher than the threshold value among the first image orientation reliability (R ₁ ) and the second image orientation reliability (R ₂ ) (S14; No), and proceeds to step S15.

In step S15, the processing side CPU 103 determines that the first image orientation reliability (R ₁ ) is equal to or higher than the second image orientation reliability (R ₂ ) (S15; Yes), and proceeds to step S16.

In step S16, the processing side CPU 103 rotates the first read image 207 180° clockwise because the first character recognition image orientation that is the orientation of the first read image 207 identified by the character recognition processing is 180°. Alternatively, it is rotated counterclockwise by 180°, and the second read image 209 is rotated clockwise by 180° or counterclockwise by 180°.

In step S22, the processing-side CPU 103, as shown in FIG. 17, rotates the first read image 207, that is, the first read image 207 in which the orientation of the image is corrected to 0°, and the second read image after the rotation. The image 209, that is, the second read image 209 in which the orientation of the image is corrected to 0° is displayed on the processing side display unit 113.

In this way, the processing-side CPU 103 performs the interlocked rotation process, so that the character recognition process correctly identifies the orientation of one of the first read image 207 and the second read image 209. Regarding the other side of the second read image 209, even if the direction is erroneously specified by the character recognition processing, the direction of the first read image 207 after rotation and the direction of the second read image 209 after rotation are desired. Can be aligned in the direction of. The character 213 is printed not only when only the illustration 215 is printed like the second surface 205 of the second original 201b, but when the number of character recognizable characters 213 is small, the present configuration is also possible. Is useful.

When the processing-side CPU 103 acquires the first read image 207 and the second read image 209 (see FIG. 11) read from the third original 201c in step S11, the processing-side CPU 103 determines in step S12 that As described above, since the illustration 215 is printed on the first surface 203 of the third document 201c instead of the characters 213, the orientation of the first read image 207 cannot be accurately specified by the character recognition process. .. Here, the orientation of the first read image 207 is originally 180°, but the processing side CPU 103 erroneously specifies the orientation of the first read image 207 as 90°, and sets the first image orientation reliability to R ₃ . It shall be calculated.

In step S13, the processing-side CPU 103 accurately prints the orientation of the second read image 209 by the character recognition process because the illustration 215 is printed on the second surface 205 of the third document 201c instead of the character 213. I cannot identify. Here, although the orientation of the second read image 209 is originally 180°, the processing side CPU 103 erroneously specifies the orientation of the second read image 209 as 0°, and sets the second image orientation reliability to R ₄ . It shall be calculated. The first image orientation reliability (R ₃ ) and the second image orientation reliability (R ₄ ) are both values equal to or less than the threshold value.

In step S14, the processing side CPU103 is first image direction reliability (R ₃₎ and a second image orientation reliability (R ₄₎ is determined to either the threshold value or less (S14; Yes), the process proceeds to step S18 ..

In step S18, the processing side CPU 103 specifies the orientation of the first read image 207 as 180° by the image analysis processing other than the character recognition processing. Similarly, in step S19, the processing side CPU 103 specifies the orientation of the second read image 209 as 180° by the image analysis processing other than the character recognition processing.

In step S20, the processing side CPU 103 sets the first read image 207 to the first non-character recognized image orientation of 180°, which is the orientation of the first read image 207 identified by the image analysis processing other than the character recognition processing. , 180° clockwise or 180° counterclockwise. As a result, the orientation of the first read image 207 is corrected to 0°.

In step S21, the processing side CPU 103 selects the second read image 209 because the second non-character recognized image orientation, which is the orientation of the second read image 209 specified by the image analysis processing other than the character recognition processing, is 180°. , 180° clockwise or 180° counterclockwise. As a result, the orientation of the second read image 209 is corrected to 0°.

In step S22, the processing side CPU 103, as shown in FIG. 18, the first read image 207 after rotation, that is, the first read image 207 in which the orientation of the image is corrected to 0°, and the second read image after rotation. The image 209, that is, the second read image 209 in which the orientation of the image is corrected to 0° is displayed on the processing side display unit 113.

As described above, the processing-side CPU 103 performs the interlocked rotation process, so that the orientation of the first read image 207 and the second read image 209 is not changed even after the orientation is erroneously specified by the character recognition process. The orientation of the first read image 207 and the orientation of the rotated second read image 209 can be aligned in a desired orientation. Note that when the illustration 215 alone is printed as in the case of the first surface 203 or the second surface 205 of the third original 201c, the character 213 is printed, but the number of character recognizable characters 213 is small. However, this configuration is useful.

Next, a modified example of the character recognition process performed in the individual rotation process or the interlocked rotation process will be described. As shown in FIG. 19, the header area 217 and the footer area 219 of the original 201 usually include characters 213 such as date, file name, page number, and rarely include an illustration 215. On the other hand, the area other than the header area 217 and the footer area 219 of the original 201 often includes the illustration 215 and the like as compared with the header area 217 and the footer area 219. Therefore, the illustration 215 or the like included in the area that is neither the header area 217 nor the footer area 219 is erroneously recognized as the character 213 by the character recognition processing, and as a result, the orientation of the first read image 207 is erroneously specified. There is a risk.

Therefore, the processing side CPU 103 performs character recognition processing only on the first end area 221 including the header area 217 and the footer area 219 of the first surface 203 of the original 201, and the character recognition processing is performed on the first end area 221. The orientation of the first read image 207 may be identified based on the first edge character orientation that is the orientation identified for the included character 213. The processing side CPU 103 defines a region within the range of the first dimension from the upper side 211 of the document 201 and a region within the range of the second dimension from the lower side 223 of the document 201 as the first end region 221. The first dimension and the second dimension may be preset in the scanner driver or may be set based on the user's selection operation received by the processing side operation unit 111, for example. The first end region 221 may include at least one of the header region 217 and the footer region 219. In this way, by performing character recognition only on the first end area 221, the illustration 215 or the like included in the area that is neither the header area 217 nor the footer area 219 is erroneously recognized as the character 213 by character recognition. You can avoid that. Therefore, even when the illustration 215 or the like is included in a region that is neither the header region 217 nor the footer region 219, the orientation of the first read image 207 can be accurately specified.

Further, as a further modification, the processing side CPU 103 may perform the character recognition processing as follows. First, the processing-side CPU 103 identifies the orientation of the character 213 included in the first end area 221 by performing character recognition processing on the first end area 221. In addition, the processing-side CPU 103 performs character recognition processing on the first non-edge region 225 that is neither the header region 217 nor the footer region 219 of the first surface 203, so that the first non-edge region 225 is formed. The direction of the included character 213 is specified. Subsequently, the processing side CPU 103 specifies the character 213 included in the first end area 221 rather than the first non-end character direction that is the direction specified for the character 213 included in the first non-end area 225. The orientation of the first read image 207 is specified by giving a large weight to the orientation of the first end portion character that is the generated orientation. That is, as described above, the processing-side CPU 103 gives a greater weight to the first end character direction than to the first non-end character direction when voting for the specified direction of the character 213. Accordingly, even if the illustration 215 included in the first end region 221 is mistakenly recognized as the character 213 by the character recognition, the influence thereof can be reduced. Therefore, even when the first non-edge region 225 includes the illustration 215 and the like, the orientation of the first read image 207 can be accurately specified.

Note that these modified examples can be similarly applied to the second read image 209 read from the second surface 205. That is, the processing side CPU 103 performs the character recognition processing only on the second end area (not shown) of the second surface 205 of the original 201, which includes at least one of the header area 217 and the footer area 219, and The orientation of the second read image 209 may be identified based on the second edge character orientation that is the orientation identified for the character 213 included in the second edge area. Further, the processing-side CPU 103 has the second non-end portion character that is the orientation specified for the character 213 included in the second non-end portion area that is the area that is neither the header area 217 nor the footer area 219 of the second surface 205. The orientation of the second read image 209 may be identified by weighting the second edge character orientation, which is the orientation identified for the character 213 included in the second edge region, more heavily than the orientation.

As a method of selecting either the first character recognition image orientation or the second character recognition image orientation, the processing side CPU 103 may select the one with the smaller reliability, contrary to the above embodiment. That is, when the processing side CPU 103 determines that the first image orientation reliability is larger than the second image orientation reliability, it selects the second character recognition image orientation, and the first image orientation reliability is the second image orientation. The first character recognition image orientation may be selected when it is determined to be lower than the reliability. Further, the processing side CPU 103 may select one of the first character recognition image orientation and the second character recognition image orientation based on the user's selection operation received by the processing side operation unit 111.

When the first image orientation reliability and the second image orientation reliability are both smaller than the threshold value, the processing side CPU 103 determines the reliability of the orientation of the first read image 207 specified by the image analysis processing other than the character recognition processing. And the reliability with respect to the orientation of the second read image 209 specified by the image analysis processing other than the character recognition processing, and based on the orientation of the image with the higher reliability, the first read image 207 and the first read image 207 are compared. The two-read image 209 may be rotated.

The processing-side CPU 103 is not limited to the configuration in which the rotated first read image 207 and the rotated second read image 209 are displayed on the processing-side display unit 113, and may be displayed on the reading-side display unit 27, for example. Of course, the information may be output to another device communicatively connected to the information processing device 101.

When a plurality of originals 201 are set in the setting unit 9 and the plurality of originals 201 are continuously read, the first character recognition image orientation and the second character recognition image orientation obtained for the first original 201 Of these, the selected image orientation may be applied to the second and subsequent originals 201. For example, the first character recognition image orientation (270°) is selected from the first character recognition image orientation (270°) and the second character recognition image orientation (90°) obtained for the first original 201. To do. In this case, the first read image 207 and the second read image 209 read from the first original 201 are rotated based on the first character recognition image orientation (270°) selected for the first original 201. In addition, the first read image 207 and the second read image 209 read from the second and subsequent originals 201 are also based on the first character recognition image orientation (270°) selected for the first original 201. You may rotate it. As a result, with respect to the second and subsequent originals 201, a process of specifying the orientation of the first read image 207 and the orientation of the second read image 209, and either the first character recognition image orientation or the second character recognition image orientation is performed. The process of selecting can be omitted.

The character recognition process is not limited to the configuration performed by the information processing device 101, and may be performed by the reading device 1. That is, the reading device 1 specifies the orientation of the first read image 207 and the orientation of the second read image 209 by the character recognition processing, and the information processing device 101 determines the orientation of the first character recognition image and the orientation of the second character recognition image. The configuration may be obtained from the reading device 1.

The reading device 1 may have a configuration in which the above-described embodiments and modifications are combined. Further, it is needless to say that the reading device 1 is not limited to the above-described embodiments and modified examples, and various configurations can be adopted without departing from the spirit of the present invention.

Hereinafter, the information processing apparatus, the image rotation method of the information processing apparatus, and the program will be additionally described.
An acquisition unit for acquiring a first read image obtained by reading the first surface of the document and a second read image obtained by reading the second surface of the document opposite to the first surface, and an information processing unit. And an information processing unit configured to detect the first read image, which is the direction of the first read image specified by the character recognition process for the first read image, and the second read image specified by the character recognition process for the second read image. Of the second character recognition image orientations, the information processing unit selects the first read image and the second read image based on the selected character recognition image orientation. Rotate.

According to this configuration, the first read image and the second read image are rotated based on either the first character recognition image orientation or the second character recognition image orientation. Therefore, for one of the first read image and the second read image, the direction is correctly specified by the character recognition process, but for the other of the first read image and the second read image, the direction is erroneously specified by the character recognition process. Even when specified, the orientation of the first read image after rotation and the orientation of the second read image after rotation can be aligned.

In this case, the information processing unit determines whether the first image orientation reliability, which is the reliability for the first character recognition image orientation, is greater than the second image orientation reliability, which is the reliability for the second character recognition image orientation. And the information processing unit determines that the first image orientation reliability is higher than the second image orientation reliability, the first character recognition image orientation of the first character recognition image orientation and the second character recognition image orientation is determined. When the image orientation is selected and it is determined that the first image orientation reliability is lower than the second image orientation reliability, the second character recognition image orientation is selected from the first character recognition image orientation and the second character recognition image orientation. It is preferable to select.

According to this configuration, the first read image and the second read image are rotated based on whichever of the first character recognition image orientation and the second character recognition image orientation has the higher reliability. Therefore, for one of the first read image and the second read image, the direction is correctly specified by the character recognition process, but for the other of the first read image and the second read image, the direction is erroneously specified by the character recognition process. Even when specified, the orientation of the first read image after rotation and the orientation of the second read image after rotation can be aligned in the desired orientation.

In this case, the information processing unit determines whether the first image orientation reliability and the second image orientation reliability are smaller than the threshold value, and the information processing unit determines the first image orientation reliability and the second image orientation reliability. When it is determined that the degree is smaller than the threshold value, the direction of the first read image is specified by performing an image analysis process other than the character recognition process on the first read image, and the character is detected on the second read image. By performing an image analysis process other than the recognition process, the orientation of the second read image is identified, and the information processing unit causes the orientation of the first read image identified by the image analysis process other than the character recognition process for the first read image. The second non-character which is the orientation of the second read image specified by the image analysis processing other than the character recognition processing for the second read image by rotating the first read image based on the first non-character recognized image orientation It is preferable to rotate the second read image based on the orientation of the recognized image.

According to this configuration, when the first image orientation reliability and the second image orientation reliability are smaller than the threshold value, the first read image is rotated based on the first non-character recognized image orientation, and the second non-character recognition image is rotated. The second read image is rotated based on the orientation of the recognized image. Therefore, for both the first read image and the second read image, even if the orientation is erroneously specified by the character recognition processing, the orientation of the first read image after rotation and the orientation of the second read image after rotation And can be aligned in a desired direction.

In this case, the information processing unit specifies the orientation of the characters included in the first end area by performing character recognition processing on the first end area including at least one of the header area and the footer area on the first surface. , The orientation of the first read image is identified based on the orientation of the first edge character, which is the orientation identified for the characters included in the first edge area, and the information processing unit causes the information processing unit to identify the header area and the footer of the second surface. By performing character recognition processing on the second edge area including at least one of the areas, the orientation of the character included in the second edge area is specified, and the orientation of the character included in the second edge area is specified. It is preferable to specify the direction of the second read image based on a certain second edge character direction.

With this configuration, it is possible to avoid erroneously recognizing an illustration or the like included in the area of the first surface that is neither the header area nor the footer area as a character by character recognition. Therefore, even when an illustration or the like is included in a region that is neither the header region nor the footer region, the orientation of the first read image can be accurately specified. Similarly, it is possible to avoid erroneously recognizing an illustration or the like included in the area of the second surface which is neither the header area nor the footer area as a character by character recognition. Therefore, even when an illustration or the like is included in a region that is neither the header region nor the footer region, the orientation of the second read image can be accurately specified.

In this case, the information processing unit identifies the orientation of the character included in the first non-edge region by performing the character recognition process on the first non-edge region that is neither the header region nor the footer region of the first surface. However, by giving a greater weight to the first end character direction than to the first non-end character direction that is the direction specified for the characters included in the first non-end region, the direction of the first read image is changed. The information processing unit identifies the orientation of the character included in the second non-edge region by performing character recognition processing on the second non-edge region that is neither the header region nor the footer region of the second surface. However, by giving a greater weight to the second end character direction than to the second non-end character direction that is the direction specified for the characters included in the second non-end region, the direction of the second read image is changed. It is preferable to specify.

According to this configuration, even when the illustration or the like included in the first non-edge portion area is erroneously recognized as a character by character recognition, the influence thereof can be reduced. Therefore, even when an illustration or the like is included in the first non-edge portion area, the orientation of the first read image can be accurately specified. Similarly, even when an illustration or the like included in the second non-edge portion area is erroneously recognized as a character by character recognition, the influence can be reduced. Therefore, even when an illustration or the like is included in the second non-edge portion area, the orientation of the second read image can be accurately specified.

An image rotation method of an information processing apparatus obtains a first read image read from a first side of a document and a second read image read from a second side opposite to the first side of the document. , A first character recognition image orientation that is the orientation of the first read image identified by the character recognition processing for the first read image, and a second orientation of the second read image that is identified by the character recognition processing for the second read image One of the two character recognition image orientations is selected, and the first read image and the second read image are rotated based on the selected character recognition image orientation.

According to this configuration, the first read image and the second read image are rotated based on either the first character recognition image orientation or the second character recognition image orientation. Therefore, for one of the first read image and the second read image, the direction is correctly specified by the character recognition process, but for the other of the first read image and the second read image, the direction is erroneously specified by the character recognition process. Even when specified, the orientation of the first read image after rotation and the orientation of the second read image after rotation can be aligned.

The program causes the computer to obtain a first read image read from the first side of the document and a second read image read from the second side opposite to the first side of the document. A first character recognition image orientation that is the orientation of the first read image identified by the character recognition processing for the first read image, and a second orientation that is the orientation of the second read image identified by the character recognition processing for the second read image A step of selecting any one of the character recognition image orientations and a step of rotating the first read image and the second read image based on the selected character recognition image orientation are executed.

According to this configuration, the first read image and the second read image are rotated based on either the first character recognition image orientation or the second character recognition image orientation. Therefore, for one of the first read image and the second read image, the direction is correctly specified by the character recognition process, but for the other of the first read image and the second read image, the direction is erroneously specified by the character recognition process. Even when specified, the orientation of the first read image after rotation and the orientation of the second read image after rotation can be aligned.

Reference numeral 101... Information processing apparatus, 103... Processing side CPU, 201... Original, 203... First side, 205... Second side, 207... First read image, 209... Second read image, 217... Header area, 219... Footer Regions, 221,... First end regions, 225,... First non-end regions.

Claims (7)

An acquisition unit for acquiring a first read image obtained by reading the first surface of the document and a second read image obtained by reading the second surface of the document opposite to the first surface;
An information processing unit,
The information processing unit includes a first character recognition image orientation that is the orientation of the first read image identified by the character recognition processing for the first read image, and the character identification processing identified for the second read image. Select one of the character recognition image orientations from the second character recognition image orientation that is the orientation of the second read image,
The information processing unit, wherein the information processing unit rotates the first read image and the second read image based on the selected orientation of the character recognition image. The information processing unit determines whether the first image orientation reliability, which is the reliability for the first character recognition image orientation, is greater than the second image orientation reliability, which is the reliability for the second character recognition image orientation. Judge,
When the information processing unit determines that the first image orientation reliability is higher than the second image orientation reliability, the first information recognition direction among the first character recognition image orientation and the second character recognition image orientation is the first character recognition image orientation. When a character recognition image orientation is selected and it is determined that the first image orientation reliability is lower than the second image orientation reliability, the one of the first character recognition image orientation and the second character recognition image orientation is The information processing apparatus according to claim 1, wherein the orientation of the second character recognition image is selected. The information processing unit determines whether the first image orientation reliability and the second image orientation reliability are smaller than a threshold value,
When determining that the first image orientation reliability and the second image orientation reliability are smaller than the threshold value, the information processing unit performs image analysis processing other than character recognition processing on the first read image. By doing so, the direction of the first read image is specified, and by performing image analysis processing other than character recognition processing on the second read image, the direction of the second read image is specified,
The information processing unit determines the first read image based on a first non-character-recognized image orientation, which is the orientation of the first read image identified by an image analysis process other than the character recognition process on the first read image. Rotating the second read image based on a second non-character-recognized image orientation that is the orientation of the second read image identified by image analysis processing other than the character recognition processing for the second read image. The information processing apparatus according to claim 2, wherein: The information processing unit specifies a direction of a character included in the first end area by performing character recognition processing on a first end area including at least one of a header area and a footer area on the first surface. The orientation of the first read image is identified based on the orientation of the first edge character, which is the orientation identified for the characters included in the first edge area,
The information processing unit specifies a direction of a character included in the second end area by performing character recognition processing on a second end area including at least one of a header area and a footer area on the second surface. 4. The orientation of the second read image is identified based on the second edge character orientation that is the orientation identified for the character included in the second edge area. The information processing device according to claim 1. The information processing unit performs character recognition processing on a first non-edge portion of the first surface that is neither the header region nor the footer region, so that the orientation of characters included in the first non-edge region And assigning a greater weight to the first end character direction than to the first non-end character direction, which is the direction specified for the characters included in the first non-end region, Specify the orientation of the scanned image,
The information processing unit performs a character recognition process on a second non-edge portion of the second surface that is neither the header region nor the footer region, so that the orientation of the characters included in the second non-edge region is increased. And assigning a greater weight to the second end character direction than to the second non-end character direction, which is the direction specified for the characters included in the second non-end region, The information processing apparatus according to claim 4, wherein the direction of the read image is specified. Acquiring a first read image read from the first side of the original and a second read image read from the second side of the original opposite to the first side,
A first character recognition image orientation that is the orientation of the first read image identified by the character recognition processing for the first read image, and a orientation of the second read image identified by the character recognition processing for the second read image Select one of the character recognition image orientations from the second character recognition image orientation
An image rotation method for an information processing apparatus, comprising rotating the first read image and the second read image based on the selected orientation of the character recognition image. On the computer,
Acquiring a first read image read from the first side of the original document and a second read image read from the second side of the original opposite to the first side;
A first character recognition image orientation that is the orientation of the first read image identified by the character recognition processing for the first read image, and a orientation of the second read image identified by the character recognition processing for the second read image Selecting one of the character recognition image orientations among the second character recognition image orientations
Rotating the first read image and the second read image based on the selected orientation of the character recognition image;
A program characterized by causing to execute.

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