JP4656066B2 - Image processing apparatus, control method thereof, and program thereof - Google Patents

Description

  The present invention relates to an image processing apparatus, a control method thereof, and a program thereof.

Conventionally, as an image processing apparatus, an apparatus that reads an image using a contact image sensor in which a plurality of photosensors are arranged has been proposed (see, for example, Patent Document 1). The apparatus described in Patent Document 1 replaces the pixel corresponding to the joint of each photosensor with the average value of the pixels on both sides, or replaces the pixel corresponding to the joint with either of the pixels on both sides. The image degradation caused by the joint of the photosensor is suppressed.
Japanese Patent Laid-Open No. 2004-31997

  However, in the apparatus described in Patent Document 1, although deterioration of the read image is suppressed, it is replaced with a pixel different from the pixel that is actually read. As a result, the image quality deteriorates. Further, such an image processing apparatus is required to read an image quickly.

  The present invention has been made in view of such a problem, and provides an image processing apparatus, a control method thereof, and a program thereof that can further suppress deterioration of a read image and can read an image more quickly. The purpose is to do.

  The present invention adopts the following means in order to achieve the above-mentioned object.

The image processing apparatus of the present invention
A reading unit in which a plurality of reading units are arranged adjacent to each other via a connection unit and can read an image;
A determination unit that determines whether or not a reading position of the reading unit that reads an image is the connection unit;
When the determination unit determines that the reading position is other than the connection unit, the reading unit of the reading unit is controlled to read the image at a predetermined non-connection unit timing, and the reading unit determines the reading position by the determination unit. Control means for controlling the reading means so as to read the image at a predetermined connecting portion timing having a reading interval longer than the non-connecting portion timing when determined to be the connecting portion;
It is equipped with.

  In this image processing apparatus, it is determined whether or not a reading position for reading an image of a reading unit in which a plurality of reading units are arranged adjacently via a connection unit and can read an image is a connection unit, and the reading position is connected. When it is determined that it is other than the portion, the image is read at a predetermined non-connection portion timing, and when it is determined that the reading position is a connection portion, the reading interval is longer than the non-connection portion timing at a predetermined connection portion timing. Read the image. As described above, in the reading at the connecting portion, the timing of the reading interval is longer than the timing of the non-connecting portion, thereby making it less susceptible to the influence of noise caused by the switching of the reading portion. Accordingly, it is possible to further suppress the deterioration of the read image as compared with the case where the reading result at the connection unit is corrected by the neighboring pixels. In addition, since the image is read at a timing shorter than the timing of the connection portion other than the connection portion, it is possible to read the image more quickly than the case where all the reading portions are controlled at the read timing in accordance with the connection portion. it can.

  The image processing apparatus according to the present invention includes a storage unit that stores the position of the imaging element of the connection unit among the plurality of imaging elements included in the reading unit, a pixel counter that counts the position of the imaging element that reads the image, The control unit counts up the pixel counter as the image is read by the reading unit, and the determination unit is configured to capture the value of the pixel counter in the storage unit. Whether or not the reading position is the connecting portion may be determined based on whether or not it is the position. In this way, where the image sensor of the connection unit is stored in the entire reading unit, and the connection unit can be determined regardless of which reading unit is reading the image, It can be determined relatively easily whether or not the reading position is a connection portion. Further, it is possible to relatively easily use reading units having different numbers of image pickup devices.

  The image processing apparatus according to the present invention reads the image by counting the reading unit, storage means for storing information relating to the number of the plurality of image sensors provided in the reading unit and information relating to the number of the reading units. A reading unit counter that specifies the reading unit; and a pixel counter that counts the position of the imaging element that reads an image among the reading units specified by the reading unit counter. The pixel counter corresponding to the reading unit being read is counted up as the image is read by the reading unit, and when the value of the pixel counter is a value at which the reading unit being read ends, the reading unit The counter counts up, and the determination means determines whether the reading position is based on whether the reading unit counter is counted up. It may alternatively be determined whether the connection part. By doing this, the number of storages of the positions of the image pickup devices in the connection unit can be suppressed by separately performing the count of the image pickup device and the count of the reading unit, and thus the storage area can be reduced.

  In the image processing apparatus according to the aspect of the invention in which the position of the image sensor of the connection unit is stored, the storage unit stores the position of the image sensor of the connection unit corresponding to a plurality of reading resolutions that can be read by the reading unit. The determination unit may determine whether or not the reading position is the connection unit based on the position of the imaging element of the connection unit corresponding to the set reading resolution. In this way, it is possible to determine the position of the connection portion corresponding to a plurality of reading resolutions relatively easily.

  In the image processing apparatus according to the aspect of the invention, the predetermined connection unit timing may be set to a timing at which a reading interval is longer than the non-connection timing to an extent that suppresses an influence of noise generated when the reading unit is switched. Good. By doing so, the image reading timing at the connecting portion is made as short as possible, so that the image can be read more quickly.

The control method of the image processing apparatus of the present invention includes:
A method for controlling an image processing apparatus using an image processing apparatus including a reading unit in which a plurality of reading units are arranged adjacent to each other via a connection unit and capable of reading an image,
(A) determining whether the reading position of the reading means for reading an image is the connecting portion;
(B) When it is determined in step (a) that the reading position is other than the connecting portion, the reading unit of the reading unit is controlled to read the image at a predetermined non-connecting portion timing; a step of controlling the reading means to read the image at a predetermined connecting portion timing at which a reading interval is longer than the non-connecting portion timing when it is determined in a) that the reading position is the connecting portion;
Is included.

  In this method of controlling an image processing apparatus, it is determined whether or not a reading position for reading an image of a reading unit in which a plurality of reading units are arranged adjacent to each other via a connection unit and which can read an image is the connection unit. When it is determined that the position is other than the connection portion, the image is read at a predetermined non-connection portion timing, and when it is determined that the reading position is the connection portion, the predetermined connection whose reading interval is longer than the non-connection portion timing. The image is read at the part timing. As described above, in the reading at the connecting portion, the timing of the reading interval is longer than the timing of the non-connecting portion, thereby making it less susceptible to the influence of noise caused by the switching of the reading portion. Accordingly, it is possible to further suppress the deterioration of the read image as compared with the case where the reading result at the connection unit is corrected by the neighboring pixels. In addition, since the image is read at a timing shorter than the timing of the connecting portion other than the connecting portion, the image is read more quickly than, for example, a case where all the reading portions are controlled at a reading timing that matches the connecting portion. Can do. In this image processing apparatus control method, various aspects of the above-described image processing apparatus may be employed, and steps for realizing the functions of the above-described image processing apparatus may be added. .

  The program of the present invention is for causing one or a plurality of computers to realize each step of the above-described control method of the image processing apparatus. This program may be recorded on a computer-readable recording medium (for example, hard disk, ROM, FD, CD, DVD, etc.), or from a computer via a transmission medium (communication network such as the Internet or LAN). It may be distributed to another computer, or may be exchanged in any other form. If this program is executed by one computer or if each computer is assigned to each step and executed, each step of the above-described control method of the image processing apparatus is executed. An effect is obtained.

  Next, the best mode for carrying out the present invention will be described with reference to the drawings. FIG. 1 is a configuration diagram showing an outline of a configuration of a scanner device 10 according to an embodiment of the present invention. As shown in FIG. 1, the scanner device 10 of this embodiment includes a carriage 30 that reads an image of a read document placed on a reading surface 31 and a control unit 20 that controls the entire device.

  The carriage 30 includes a light source unit 32 that irradiates light on a document placed on a reading surface 31 and a contact image sensor (CIS) 36 that reads an image by receiving light reflected by the document. The light source unit 32 includes a red LED 34R that lights in red, a green LED 34G that lights in green, and a blue LED 34B that lights in blue. It is configured to be able to irradiate. In the CIS 36, a plurality of CCD chips 37 each having a plurality of image pickup elements 37a arranged in series are connected via a connection portion 37b. The image pickup element 37a is a photoelectric conversion element corresponding to a pixel, and converts a light when exposed to charge into a charge and stores it, and a CCD formed for each photodiode and capable of transferring charge received from the photodiode. And. In the present embodiment, the CIS 36 includes 15 CCD chips 37, and the CCD chip 37 is configured to be able to directly read an A4 size document including 688 imaging elements 37 a. The carriage 30 is driven by a drive motor 39 by a carriage belt 38 installed between a drive motor 39 attached to one end of the housing of the scanner device 10 and a driven roller 38 a attached to the other end of the housing. As a result, it moves in the carriage movement direction (sub-scanning direction). Although a CCD image sensor is exemplified here as the CIS 36, a CMOS image sensor may be employed. Further, although the CIS 36 in which the CCD chips 37 are arranged in one row in the main scanning direction is illustrated, two or more rows may be arranged.

  The control unit 20 includes a main controller 21 that controls the entire apparatus, a CIS controller 25 that drives and controls the CIS 36, a timing generator (TG) 26 that outputs the start timing of various operations of the CIS 36, and the like. An analog front end (AFE) 27 that converts the output electric signal into a digital signal, and an image processing circuit 28 that performs predetermined processing such as gamma correction on the signal input from the AFE 27 to create digital image data. ing. The main controller 21 is configured as a microprocessor centered on the CPU 22, and includes a ROM 23 for storing processing programs and various tables, a RAM 24 for temporarily storing data, and external devices such as a user personal computer (PC) 50. A connectable interface (I / F) 29 and an input / output port (not shown) are provided. Various signals such as a read command from the I / F 29 and digital image data signals from the image processing circuit 28 are input to the main controller 21. The main controller 21 also outputs a lighting signal to the light source unit 32, a drive signal to the drive motor 39, a digital image data signal to the I / F 29, a main clock signal to the CIS controller 25, and a read command signal. Is output. The CIS controller 25 includes a memory 25a that can store information and is backed up by a battery, and a pixel counter 25b that is used when the CIS 36 is read. The CIS controller 25 outputs, to the TG 26, a driving clock corresponding to the reading timing of the CIS 36 created based on the main clock input from the main controller 21. As shown in FIG. 2, the memory 25a stores image sensor position information 42, which is information related to the connection part 37b of the CCD chip 37, and timing information 43, which is information related to the reading timing of the CIS 36. The pixel counter 25b is a counter that replaces the image sensor 37a that is currently reading an original document with a pixel number and counts it so that it can be identified. In this specification, for convenience of explanation, the position of the image sensor 37a may be indicated by the value of the pixel counter. The TG 26 generates a CIS 36 drive pulse having a reading resolution of 1200, 600, and 300 dpi.

  Here, information stored in the memory 25a will be described. FIG. 2 is an explanatory diagram of the image sensor position information 42 and the timing information 43 stored in the memory 25a. The image sensor position information 42 stores information related to the position of the image sensor 37 a of the connection portion 37 b among the image sensors 37 a included in the CIS 36. Here, the value of the pixel counter corresponding to the position of the leading image sensor 37a of the second and subsequent CCD chips 37 in the main scanning direction is stored, including the offset value “100” at the start of reading. That is, the counter value of the first image sensor 37a with the chip number 1 counted from “0” is “100”, and the counter value of the first image sensor 37a with the chip number 2 is 788-100 = “688”. In addition, the position of the image sensor 37a of the connection unit 37b corresponding to a plurality of reading resolutions that can be read by the CIS 36 is also stored. For example, at 600 dpi, two pixels from the top are set to one pixel (two pixel addition), and at 300 dpi, four pixels from the top are set to one pixel (four pixel addition).

  The timing information 43 includes a normal reference drive clock th1 representing the reference signal acquisition timing among the read timings of the image sensor 37a other than the connection unit 37b, and the reference signal acquisition timing among the read timings of the image sensor 37a of the connection unit 37b. , A reference drive time tl indicating the acquisition timing of the actual measurement signal among the reading timings of the image sensor 37a, a reference sampling time tref necessary for acquiring the reference signal, and an acquisition of the actual measurement signal The measured sampling time tsig is stored. In the scanner device 10, first, a reference signal is obtained, and then an actual measurement signal output is obtained, and the difference between them is used as a read signal. FIG. 3 is an explanatory diagram of the drive clock and signal output in the normal image sensor 37a, and FIG. 4 is an explanatory diagram of the drive clock and signal output in the image sensor 37a of the connection portion 37b. In the normal image pickup device 37a, as shown in FIG. 3, the normal reference drive clock th1 cancels noise generated by switching from the previous image pickup device 37a in addition to the reference sampling time tref necessary for acquiring the reference signal. It is set to a value with a possible margin. In addition, the normal actual measurement drive clock tl is set to a value provided with a margin so that a change from the reference signal is not included in the actual measurement signal in addition to the actual measurement sampling time tsig necessary for obtaining the actual measurement signal. On the other hand, in the connection portion 37b, a larger noise is generated when the image sensor 37a is switched when the next CCD chip 37 is switched. Therefore, as shown in FIG. 4, the connection portion reference clock th2 is the normal reference drive clock th1. A value having a larger margin, that is, a time longer than the normal reference drive clock th1 is set. Here, the connection unit reference clock th2 is set to a timing longer than the normal reference drive clock th1 to such an extent that the influence of noise generated when the CCD chip 37 is switched is suppressed.

  Next, an operation of the scanner apparatus 10 of the present embodiment configured as described above, particularly an operation of setting a reading timing for reading an image will be described. FIG. 5 is a flowchart showing an example of a drive clock setting routine executed by the CIS controller 25, and FIG. 6 is an explanatory diagram showing the setting of the pixel counter and the drive clock over time. This routine is stored in the memory 25a, and is executed after receiving an image reading command from the user PC 50. When this routine is executed, the CIS controller 25 sets the drive clock that is the timing of the reading operation of the CCD chip 37 to the normal reference drive clock th1 and the actually measured drive clock tl, and sets the count-up set value of the pixel counter 25b to the non-set value. It is set to the value (normal value) of the connection part (step S100). Here, the count-up setting value of the pixel counter 25b is determined so that the pixel counter is incremented by 1 when the main clock counts a predetermined number (for example, 10 counts) so as to be a value corresponding to one pixel. In a reading processing routine (not shown) that is executed separately, the TG 26 performs reading control of the CCD chip 37 based on the drive clock set here (see FIG. 3). Next, it is determined whether or not it is the output timing of the shift signal as the reading start signal (step S110). If it is the output timing of the shift signal, the shift signal is output to the TG 26 (step S120). Here, it is assumed that the shift signal is output immediately after the start of this routine, after the pixel counter 25b starts counting (here, the counter value “1”) (t1 in FIG. 6). The pixel counter value up to “100” is set as an offset time as a time for sweeping out the charge accumulated in the photodiode of the image sensor 37a to the CCD. After step S120 or when it is not the shift signal output timing in step S110, it is determined whether the current pixel position is the connection portion 37b or other than the connection portion 37b (non-connection portion) (step S130). This determination is made based on whether or not the current value of the pixel counter 25b is the counter value of the image sensor position information 42 corresponding to the set reading resolution. When the current pixel position is a non-connection portion, the count process of the pixel counter 25b is executed based on the count-up setting value set in step S100 (step S140). Subsequently, it is determined based on the value of the pixel counter 25b whether or not the one-line reading process of the CIS 36 has been completed (step S150). If the one-line reading process has not been completed, the processes after step S110 are performed. Execute.

  On the other hand, when the current pixel position is the connection portion 37b in step S130, the drive clock is set to the connection portion reference drive clock th2 and the actual measurement drive clock tl, and the count-up setting value is set to the value of the connection portion (step). S160, t2 in FIG. Here, since the connection reference drive clock th2 is set to be longer than the normal reference drive clock th1, the count-up setting value is the value corresponding to the connection reference drive clock th2, that is, the main clock is It is determined that the pixel counter 25b is incremented by 1 when the count is larger than a predetermined number (for example, 15 counts). Next, the count process of the pixel counter 25b is executed based on the count-up setting value set here (step S170, see FIG. 6), and then the process after step S110 is executed (t3 in FIG. 6). Thus, only the image sensor 37a of the connection part 37b of the CIS 36 is set to a reading timing longer than usual. Note that the TG 26 performs reading control of the CCD chip 37 based on the driving clock set here (see FIG. 4).

  On the other hand, when the reading process for one line is completed in step S150, the value of the pixel counter 25b is cleared to “0” (step S180), and the reading process of the document is performed based on the reading setting range when the reading command is issued. It is determined whether or not the processing has been completed (step S190). When the reading process is finished, this routine is finished as it is. When the reading process is not finished, that is, when there is an unread line, the processes after step S110 are executed. Here, in a reading processing routine (not shown) that is executed separately, each time reading of one line is completed, the light emission of the light source unit 32 is switched to the red LED 34R, the green LED 34G, and the blue LED 34B to read an image.

  Here, the correspondence between the components of the present embodiment and the components of the present invention will be clarified. The CIS 36 of the present embodiment corresponds to the reading unit of the present invention. Among these, the CCD chip 37 corresponds to the reading unit, the image sensor 37a corresponds to the image sensor, and the connection unit 37b corresponds to the connection unit. The CIS controller 25 corresponds to a determination unit and a control unit, the memory 25a corresponds to a storage unit, and the pixel counter 25b corresponds to a pixel counter. Further, the normal reference drive clock th1 and the actually measured drive clock tl correspond to a predetermined non-connection portion timing, and the connection portion reference drive clock th2 and the actually measured drive clock tl correspond to a predetermined connection portion timing. In the present embodiment, an example of the control method of the image processing apparatus of the present invention is also clarified by describing the operation of the scanner apparatus 10.

  According to the scanner device 10 of the present embodiment described in detail above, the connecting portion 37b is a reading position for reading an image of the CIS 36 in which a plurality of CCD chips 37 are arranged adjacently via the connecting portion 37b and can read an image. When it is determined that the reading position is other than the connection portion 37b, the image is read with the normal reference drive clock th1 and the actual measurement drive clock tl as the reading interval, and the reading position is the connection portion 37b. When the determination is made, the image is read with the connection portion reference drive clock th2 and the actual measurement drive clock tl having a reading interval longer than the timing other than the connection portion. As described above, in the reading by the connecting portion 37b, by using a timing having a reading interval longer than the timing other than the connecting portion, the influence of noise caused by the switching of the CCD chip 37 or the like is made difficult. Therefore, it is possible to further suppress the deterioration of the read image as compared with the case where the reading result at the connection unit 37b is corrected by the neighboring pixels. In addition, since the image is read at a timing shorter than the timing of the connection portion 37b except for the connection portion 37b, the image is more quickly compared to the case where all the CCD chips 37 are controlled at the read timing according to the connection portion 37b. Can be read. Further, where the image sensor 37a of the connection unit 37b is stored in the memory 25a in the entire CIS 36, and the position of the image sensor 37a is grasped using the pixel counter 25b, the reading position is the connection unit 37b. Whether or not a plurality of CCD chips 37 having different numbers of image sensors can be used relatively easily. Further, the positions of the connection portions 37b corresponding to a plurality of reading resolutions that can be read by the CIS 36 are stored, and it is determined whether or not the reading position is the connection portion 37b based on the positions of the connection portions 37b corresponding to the reading resolutions. Therefore, the position of the connecting portion 37b corresponding to a plurality of reading resolutions can be determined relatively easily. Furthermore, the connection unit reference drive clock th2 is set to a timing at which the reading interval is longer than the normal reference drive clock th1 to the extent that the influence of noise generated when the CCD chip 37 is switched is set. The image reading timing becomes as short as possible, and the image can be read more quickly.

  It should be noted that the present invention is not limited to the above-described embodiment, and it goes without saying that the present invention can be implemented in various modes as long as it belongs to the technical scope of the present invention.

  For example, in the above-described embodiment, the image sensor position information 42 that stores the number of pixel counters of the image sensor 37a of the connection unit 37b in the entire CIS 36 is stored in the memory 25a, and the counter value of the pixel counter 25b and the image sensor position are stored. Based on the number of pixel counters stored in the information 42, it is determined whether or not the reading position is the connecting portion 37b. However, the CIS controller 25 reads the image by counting the CCD chip 37. A reading unit counter (not shown) for specifying the CCD chip 37 is provided. As shown in FIG. 7, the number of image pickup elements 37a (pixel count number) provided in the CCD chip 37 and the number of CCD chips 37 (chip count number) are provided. ) Is stored in the memory 25a, and the pixel count is read as the CIS 36 is read. When the value of the pixel counter is the value at which the CCD chip 37 being read ends, the reading unit counter is counted up. As shown in FIG. 8, is the reading unit counter counted up? Whether or not the reading position is the connecting portion 37b may be determined based on whether or not the reading position is determined. FIG. 7 is an explanatory diagram of the count number information 44 stored in the memory 25a, and FIG. 8 is an explanatory diagram showing the setting of the pixel counter, chip counter, offset counter and drive clock over time. A CIS 36 is constituted by CCD chips 37 having the same number of image pickup devices 37a. The count number information 44 includes an offset count number, a pixel count number, and a chip count number that is information corresponding to the number of CCD chips 37. Stored for each reading resolution. First, when a reading command is received from the main controller 21, the CIS controller 25 counts up an offset counter as shown in FIG. Note that the offset counter, the pixel counter, and the chip counter count up based on the count number of the main clock as in the above-described embodiment. Next, when the counter value of the offset counter reaches the value stored in the count number information 44 (here, “100”), the counter value is cleared and the pixel counter 25b is counted up (t2 in FIG. 8). Subsequently, when the counter value of the pixel counter reaches the value stored in the count number information 44, the counter value is cleared and the chip counter is counted up (t3 in FIG. 8). At this time, assuming that the reading position is the connection portion 37b, the normal reference drive clock th1 is switched to the connection portion reference drive clock th2. By doing this, the number of image sensor positions stored in the connecting portion 37b can be suppressed by separately performing the count of the image sensor 37a and the count of the CCD chip 37, and therefore, compared with the image sensor position information 42. Thus, the storage area of the memory 25a can be suppressed (see FIGS. 2 and 7).

  In the above-described embodiment, the CIS controller 25 that executes the drive clock setting routine has been described. However, this may be configured by an ASIC (Application Specific Integrated Circuit).

  In the above-described embodiment, the image processing apparatus of the present invention has been described as the scanner apparatus 10, but is not particularly limited as long as it includes a CCD chip 37 having a joint and reads an image, and is a multi-function including a printing apparatus. It may be a printer or a FAX apparatus. Further, although the present invention has been described with respect to the aspect of the scanner device 10, it may be an aspect of a control method for the image processing apparatus or an aspect of a program for this method.

1 is a configuration diagram showing an outline of the configuration of a scanner device 10. FIG. It is explanatory drawing of the image pick-up element position information 42 and the timing information 43. FIG. It is explanatory drawing of the drive clock and signal output in the normal image pick-up element 37a. It is explanatory drawing of the drive clock and signal output in the connection part 37b. It is a flowchart showing an example of a drive clock setting routine. It is explanatory drawing showing a pixel counter and the setting of a drive clock with time. It is explanatory drawing of the count number information 44 memorize | stored in the memory 25a. It is explanatory drawing showing each counter and the setting of a drive clock with time.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 Scanner apparatus, 20 Control unit, 21 Controller, 22 CPU, 23 ROM, 24 RAM, 25 CIS controller, 25a Memory, 25b Pixel counter, 26 Timing generator (TG), 27 Analog front end (AFE), 28 Image processing circuit 29 interface (I / F), 30 carriage, 31 reading surface, 32 light source unit, 33 irradiation unit, 34R red LED, 34G green LED, 34B blue LED, 36 contact image sensor (CIS), 37 CCD chip, 37a Element, 37b Connection part, 38 Carriage belt, 38a Driven roller, 39 Drive motor, 42 Image sensor position information, 43 Timing information, 44 Count number information, 50 User personal computer (PC).

Claims (6)

A reading unit in which a plurality of reading units are arranged adjacent to each other via the connection unit and can read an image;
A determination unit that determines whether or not a reading position of the reading unit that reads an image is the connection unit;
When the determination unit determines that the reading position is other than the connection unit, the reading unit of the reading unit is controlled to read the image at a predetermined non-connection unit timing, and the reading unit determines the reading position by the determination unit. A control unit that controls the reading unit of the reading unit to read the image at a predetermined connection unit timing that has a reading interval longer than the non-connection unit timing when it is determined as the connection unit;
Storage means for storing the position of the imaging element of the connection unit corresponding to a plurality of reading resolutions readable by the reading means;
The determination unit is an image processing apparatus that determines whether or not the reading position is the connection unit based on a position of the imaging element of the connection unit corresponding to the set reading resolution . The image processing apparatus according to claim 1,
A pixel counter that counts the position of the image sensor that reads the image;
The storage unit stores a position of an image sensor of the connection unit among a plurality of image sensors included in the reading unit,
The control means counts up the pixel counter as the image is read by the reading means,
The determination unit determines whether the reading position is the connection unit based on whether the value of the pixel counter is the position of the image sensor of the connection unit stored in the storage unit,
Image processing device. The image processing apparatus according to claim 1,
A reading unit counter that identifies the reading unit that is reading an image by counting the reading unit;
A pixel counter that counts the position of the image sensor that reads an image of the reading unit identified by the reading unit counter;
The storage unit stores information related to the number of imaging elements included in the reading unit and information related to the number of the reading units,
The control unit counts up the pixel counter corresponding to the reading unit that is reading an image as the image is read by the reading unit, and the reading unit that is reading the pixel counter value ends. When the value is a value, the reading unit counter is counted up, and the determination unit determines whether the reading position is the connection unit based on whether the reading unit counter is counted up,
Image processing device. The predetermined connection unit timing is set to a timing at which a reading interval is longer than the non-connection timing to an extent that suppresses the influence of noise generated when the reading unit is switched.
The image processing apparatus according to claim 1 . A control method for an image processing apparatus including a reading unit in which a plurality of reading units are arranged adjacent to each other via a connecting unit and capable of reading an image,
(A) determining whether the reading position of the reading means for reading an image is the connecting portion;
(B) When it is determined in step (a) that the reading position is other than the connecting portion, the reading unit of the reading unit is controlled to read the image at a predetermined non-connecting portion timing; a step of controlling the reading means to read the image at a predetermined connecting portion timing at which a reading interval is longer than the non-connecting portion timing when it is determined in a) that the reading position is the connecting portion;
(C) storing the position of the image sensor of the connection unit corresponding to a plurality of reading resolutions that can be read by the reading unit;
The step (a) is a method of controlling an image processing apparatus that determines whether or not the reading position is the connecting portion based on the position of the imaging element of the connecting portion corresponding to the set reading resolution . A program for causing one or more computers to execute each step of the control method of the image processing apparatus according to claim 5 .

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