JPH11298655A - Image reader - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate the need of specifying the frame number of a film to a host computer and to eliminate the need of the read mechanism of the frame number of the film by outputting image data for a specified frame number even in the film of the frame number less than the specified frame number at the time of batch read. SOLUTION: A system controller 111 which receives a preview command monitors the state of a sub scanning position detection means 117, controls a film adapter 102 by a sub scanning motor 115 and also performs internal setting of an image mode. Then, a preview frame number is obtained and a wind-up instruction and the frame number are sent through a serial communication line 143 to the controller 117 of the film adapter 102. The status of the film adapter 102 is checked by the serial communication line 143 and judged while transferring images. When film wind-up end is judged and it is 40-frame wind-up by the status of the film adapter 102, an end processing is started. When it is not so, specified dummy data are written.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for feeding a long photographic film to an image input section and converting optical image information photographed on the film by an image reading section into an electric image signal.
The present invention relates to an image reading device for outputting to a host computer or the like.

[0002]

2. Description of the Related Art Conventionally, in an image reading apparatus for reading a long photographic film which has been developed, in order to read an image, all frames on the film are displayed as an index, and a necessary frame is selected from among the frames. I was doing the work of scanning.

The details will be described below.

First, an operator sets the total number of frames of a film on a host computer and instructs batch reading. In response to this instruction, the film scanner continuously feeds the film to the image reading unit including the line sensor, reads all frames at high speed at a low resolution, and transfers the reduced images of all frames to the host computer. The host computer displays this image as an index on a monitor. Thereafter, the operator specifies the frame number and the resolution of the frame whose image is to be read on the index display. In response to this instruction, the film scanner locates the designated frame and reads the image, and transfers the image data to the host computer.

[0005] In an image reading apparatus for transferring an image using an interface such as SCSI, the image amount of all frames is calculated in advance before reading, and the image amount to be transferred is set in the host computer and the image reading apparatus. This is usually the case.

[0006]

However, in the above-described conventional example, an operator is required to read all frames of a long photographic film at a low resolution and display reduced images of all frames on a host computer. All frame numbers of the film cartridge had to be specified in advance. The host computer calculates the total image amount from the designated total number of frames, and sets the total image amount in the host computer and the image reading device.

It is troublesome for the operator to specify all the frame numbers of the film cartridge in advance when reading a large amount of film, and when using a film autochanger or the like, it is necessary to take out the film from the storage of the cartridge and check the number of frames. was there.

In order to omit this operation, a special reading mechanism is required for optically and magnetically reading information on the cartridge or on the film.

Further, when reading the reduced image information of all the frames of the film, the image is transferred while handshaking with the host computer. Therefore, when the feeding is stopped due to a failure of the film feeding mechanism, the image reading device stops the image transfer. ,
There has been a problem that the host computer hangs while waiting for transfer.

The present invention has been made in view of the above points, and does not require the host computer to specify the number of frames of the film, does not require a mechanism for reading the number of frames of the film, It is an object of the present invention to provide an image reading apparatus which does not have to wait for the transfer of an image and does not display an unpleasant image on a host computer.

[0011]

The present invention can solve the above-mentioned problems by providing the following constitution.

(1) An image of a film is projected on a linear image sensor, main scanning is performed by electronic scanning in a longitudinal direction of the linear image sensor, and an image of the film in a direction orthogonal to the longitudinal direction is scanned. An image reading device that performs sub-scanning by relative movement with respect to the linear image sensor to read the film image and performs signal processing, and collectively reads image data of a plurality of frames recorded on the film, Output means,
An image reading apparatus which outputs, at the time of batch reading, image data for a specified number of frames even on a film having a number of frames less than the specified number of frames.

(2) The image reading apparatus according to the above (1), wherein the image data for the shortage can be set to an arbitrary value during the batch reading.

(3) The image reading apparatus according to any one of (1) and (2), wherein the transfer of image data is not stopped even when film feeding fails during the batch reading. .

(4) The image reading device according to any one of the above (1), (2) and (3), wherein the number of normally read frames is output during the batch reading.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to an example of a film scanner.

In the embodiment, the long film stored in the cartridge is read. However, the present invention is not limited to this. Even in the case of a 35 mm film, other frame data is recorded. Even in the case of a film, it can be carried out correspondingly.

In the embodiment, a SCSI (Small Computer) is used as an interface with the host computer.
Although the System Interface is used, the present invention is not limited to this, and the present invention can be implemented using other types of interfaces.

(Embodiment) FIG. 1 is a block diagram showing an example of a main configuration according to the present invention.

An embodiment of the present invention will be described below with reference to the drawings.

Reference numeral 101 denotes a cold cathode tube serving as an illumination light source. Reference numeral 102 denotes a film adapter. The film adapter 102 holds a film cartridge 141 containing a film, and is movable in the Y direction on the paper. Reference numeral 140 denotes a motor for winding and rewinding the film stored in the film cartridge 141. The motor 140 drives the film at a high speed at the time of designated frame output and all frame reduced reading. Used for Reference numeral 142 denotes a controller, which receives commands from the system controller 111 via the communication line 143, transmits status, and the like, controls the motor 140 according to the contents of the commands, and transfers the film stored in the film cartridge 141 to the film cartridge 141. Performs high-speed driving of the film at the time of winding, rewinding, designated frame output, and all frame reduced reading.

Reference numeral 143 denotes a communication line.
Is the system controller 111 and the film adapter 1
The information is transmitted and received to and from the controller 142 of No. 02, which is serial communication here. Reference numeral 115 denotes a sub-scanning motor for moving the film adapter 102 in the sub-scanning direction, and here, a stepping motor. Reference numeral 116 denotes a sub-scanning motor driver. The sub-scanning motor driver 116 controls driving of the sub-scanning motor 115 in accordance with a command from the system controller 111. Reference numeral 117 denotes a sub-scanning position detecting unit for detecting a sub-scanning reference position, and a film adapter 1 using a photo interrupter.
02 is detected. Reference numeral 103 denotes an imaging lens system, and reference numeral 104 denotes a CCD linear image sensor (hereinafter, referred to as a linear image sensor). Here, the linear image sensor 104 is arranged so that the Z direction on the paper surface is the longitudinal direction. Due to this positional relationship, the main scanning direction, which is the longitudinal direction of the linear image sensor 104, and the sub-scanning direction, which is the moving direction of the film adapter 102, are orthogonal to each other. Reference numeral 105 denotes a focus fixing member that holds the linear image sensor 104 near the image plane of the imaging lens system 103 and integrally moves the linear image sensor 104 in the optical axis direction, that is, the X direction on the paper. A black level correction circuit 106 adjusts the black level of the analog image signal output from the linear image sensor 104. 107 is A / D
The converter converts an analog signal processed by the black level correction 106 into a digital signal. Reference numeral 108 denotes an image processing unit which performs image processing to be described later and processing such as a CCD drive pulse. The image processing 108 is configured by a gate array, and can perform various kinds of processing at high speed.

Reference numeral 109 denotes a line buffer. The line buffer 109 is for temporarily storing image data on which image processing has been completed, and is realized by a general-purpose random access memory. As shown in the figure, it is divided into two blocks for writing and reading, and when writing to one, the other is read and at the stage when writing to a predetermined capacity is completed,
Switching from writing to reading. Also, arbitrary data can be written by the system controller 111. Reference numeral 110 denotes an interface, which communicates with the host computer 114 and the like, and is realized here by a SCSI controller. A system controller 111 stores the sequence of the entire film scanner, and performs various operations in accordance with instructions from the host computer 114. Reference numeral 112 denotes a D / A converter that outputs a reference voltage of the black level correction 106. Reference numeral 113 denotes a CPU bus.
Is a system controller 111 and an image processing unit 108
, The line buffer 109, and the interface unit 11
0 and are constituted by an address bus and a data bus.

Reference numeral 118 denotes a light source lighting circuit for lighting the cold cathode tube 101, which is formed by a so-called inverter circuit. Numeral 119 is a magnetic information detecting and recording means for detecting magnetic information recorded on the film surface and recording magnetic information on the film surface, and is a reproducing / recording magnetic head. 120 is a linear image sensor 104
And 121 is a sample and hold control signal for sampling and holding the input signal. Reference numeral 122 denotes a RAM as a working area when performing image processing, and an offset RAM that temporarily stores various data and image data such as shading correction and color data synthesis. 123 is the focus fixing member 10
5 is a focus motor for moving 5 in the optical axis direction.
Reference numeral 24 denotes a focus motor driver that supplies a drive signal to the focus motor 123, and reference numeral 125 denotes a focus position detection unit that detects an initial position of the focus fixing member 105.
Reference numeral 130 denotes a gamma RAM for storing gamma curve data and performing gamma correction.

FIG. 2 is an explanatory view of a film cartridge. The film cartridge 141 has a spool 200 around which a long photographic film 201 is wound. The film 201 is provided with a perforation 202 indicating the position of each frame. A magnetic recording layer 203 is formed on the entire surface or the edge of the film, and photographic data for each frame is magnetically recorded. Further, a bar code recording section is provided at the leading end (Leader) of the film, and information on the film is optically recorded.
The developed photographic film is stored in the film cartridge 1
It can be stored in a state where it is wound around 41.

Next, the operation of the film scanner of this embodiment to collectively read reduced images of all frames of the long film loaded in the film adapter 102 (hereinafter, referred to as preview scan) will be described.

The film adapter 102 has a controller 142 mounted thereon, and the controller 142 communicates with the system controller 111 via the serial communication line 143 while the motor 140 in the film adapter 102 is mounted.
Is driven to control winding and rewinding of the film stored in the film cartridge 141.

At the time of the preview scan, the motor 140
The image is read while the film is being fed by the winding operation. In normal scanning, after the position of a designated frame is determined by the motor 140, the film adapter 102
Is driven in the Y direction by a motor 115 to perform image reading.

S sent from the host computer 114
The format of the preview command of the CSI interface is configured, for example, as shown in FIG. Byte 0 (zero) is set with an operation code E8h indicating a preview command. Byte 1 is LUN (Lo
digital Unit Number). The number of frames to be previewed in byte 2 is set. Byte 3 sets a dummy data value to be sent to the host computer 114 when there are no more film frames to be read. Bytes 4 and 5 are Reserve Bytes for expansion and are 0 (zero)
Put in. Bytes 6 to 8 set the image amount to be read.

To perform a preview, first, the host computer 114 issues a preview resolution, color / monochrome type,
Set the number of bits for one pixel.

FIG. 9 shows a CDB (Command Descriptor BL) of the Set Window command.
(ock). Byte 0 (zero) in Figure 9
Is set to 24h indicating a Set Window command. Byte 1 is LUN (Logical Unit)
Number). Bytes 6 to 8 are Param
The length of the parameter list following the CDB or less is set in the “eter List Length”.

FIG. 10 is an explanatory diagram showing a parameter list of the Set Window command. Bytes 10
11 is the resolution of the main scanning in the X-Resolution,
Bytes 12 and 13 set the sub-scanning resolution in Y-Resolution. Bytes 22 to 25 indicate the number of main scanning pixels of the image in Width, and Bytes 26 to 29 indicate Lengt
h is set to the number of sub-scanning lines of the image. Byte 33 is I
The type of color / monochrome is set in the image composition, and the number of bits per pixel is set in the byte 34 in the byte per pixel. Byte 37 is RIF
(Reverse Image Format) to set the type of negative or positive.

In recent years, the APS (Advanced Photo System: also referred to as a new photo system) film of a new film format which has been proposed has taken 15 frames, 25 frames,
There is a 40-frame film cartridge. Therefore,
A description will be given by taking as an example the reduced reading of 40 frames, which is the maximum number of frames of the film.

Here, for example, the preview image is 8-bit multi-valued RGB color, and the negative film is 80 dpi resolution.
As (Dot Per Inch), the image data amount of 40 frames is calculated.

When the width of the film (the length in the Z direction in FIG. 1 and the width in FIG. 2) is set to 23 mm and calculated at a resolution of 80 DPI, the number of pixels per line is 23 × 80 / 25.4 = about 72 pixels Since the pixel RGB has 3 bytes, 72 × 3 = 216 bytes in the longitudinal direction of the film (the length in the Y direction in FIG. 1, the Len in FIG. 2).
gth) is 32 mm, and the number of lines is 40 × 32 × 40 × 80 / 25.4 = approximately 4032 lines. Therefore, the image data amount for 40 frames is 216 × 4032 = 870912. Bytes.

The host computer 114 sets this amount of image data in the preview command bytes 6 to 8 and also sets it in an interface (not shown) via the driver software of the host computer 114. Furthermore,
The number of pixels 72 per line obtained as described above is represented by S in FIG.
et Window command bytes 22 to 25 Widt
h, and the total number of lines 4032 obtained above is also set in bytes 26 to 29 Length. In order to read in 8-bit multi-valued RGB color, the Image Composition of byte 33 is set to 5, the Bits Per Pixel of byte 34 is set to 8, and the resolution of 80 DPI is set to X-R of bytes 10 to 11.
Evolution and Y-Re of bytes 12 to 13
solution.

When receiving the preview command from the host computer 114, the film scanner of the present embodiment determines the number of preview frames of byte 2 shown in FIG.
, And transmits the winding command 04h to the controller 142 in the film adapter 102,
At the same time, the reading process is started. Film adapter 10
The controller 142 in 2 drives the motor 140 to start winding the film.

In this way, image reading is started,
If the final frame of the film is reached before reading the set maximum of 40 frames, the controller 142 in the film adapter 102 reports the frame end status 4Dh to the system controller 111 via the communication line 143. If the feeding is stopped due to a malfunction of the film feeding mechanism, the controller 142 in the film adapter 102 is stopped.
Reports the abnormal end status 44h to the system controller 111 via the communication line 143.

In these cases, the system controller 11
1 operates the image processing means 108 to operate the line buffer 1
09 to stop writing the image to line buffer 1
09 is cleared (zero) or filled with a specified value. Also in this case, the system controller 111 does not stop the image transfer with the host computer 114, but continues until the previously set image transfer amount ends. Therefore, the value written to the line buffer 109 is transferred to the host computer 114 thereafter.

When the operation is completed with the frame end status 4Dh, the internal variables (not shown) in the system controller 111 are stored in the controller 1 in the film adapter 102.
The number of frames at the time of termination, which are sent simultaneously from the terminal 42, are written. In this embodiment, the value is 25 or 15.

When the processing is terminated with the abnormal termination status 44h, the fact is written to the error flag.

When the controller 142 in the film adapter 102 completes the feeding of all the frames set previously,
The normal termination status 00h is sent to the system controller 111 via the communication line 143. The system controller 111 writes the number of frames transmitted at the end at the same time to an internal variable (not shown). In this embodiment, it is 40.

When the host computer 114 completes the transfer of the image information for all the frames set previously, it receives the SCSI status from the film scanner of this embodiment.
If the film feed ends normally or at the end of the frame, the Good status is displayed.
Condition status is returned.

When receiving the Good status, the host computer 114 further obtains the Get Film shown in FIG.
A Status command is sent to the film scanner of this embodiment, and the frame position at the end is checked.

In FIG. 11, byte 0 (zero) corresponds to Get Fi.
Operation indicating the lm Status command
E1h of Code is set. Byte 1 is LUN
(Logical Unit Number) is set. Bytes 2 to 5 are Reserve Reserve bytes for extension and are 0
Enter (zero). Bytes 6 to 8 set the length of the sense data returned from the film scanner.

FIG. 12 shows a Get Film Status.
Indicates the sense data returned from the film scanner when the command is issued, and the frame position at the end is set in byte 2.

If the application software used here reads all frames and then displays a preview image on the monitor screen, only the actual number of frames can be displayed. If the application software displays the transferred images sequentially, images for 40 frames are displayed on the monitor screen. At this time, even when the actual frame information is less than 40 frames, since the line buffer 109 has been cleared to 0 (zero) or set to the specified value, no unpleasant display is caused.

Next, the sequence of the preview command processing of the film scanner will be described with reference to the flowchart of FIG. 4 showing the preview operation.

Here, it is assumed that the film scanner has completed the initial setting, has received the Set Window command, and is in a waiting state for a preview command.

Upon receiving the preview command, the system controller 111 monitors the state of the sub-scanning position detecting means 117, and switches the film adapter 102 to the sub-scanning motor 11
5 so as to come to the initial position (S230
1). According to the parameters of the Set Window command received before this command, the internal settings of the image mode such as resolution, color / monochrome, negative / positive are made (S2
302). Next, the preview frame number of the preview command is obtained (S2303), and the winding command 04h and the frame number are sent to the controller 117 of the film adapter 102 via the serial communication line 143 (S2304). While transferring the image, the status of the film adapter 102 is checked and determined by the serial communication line 143 (S230).
5). If NO is determined and the frame advance is not completed, the process returns. If YES is determined and the frame advance is completed, the process proceeds to the next step, that is, it is determined that the film winding is completed.
In the status of the film adapter 102, it is checked whether 40 frames have been wound. If 40 frames have been wound, the process proceeds to the end processing (S2309). Otherwise, the process proceeds to the next step, and the writing to the line buffer 109 is stopped.
The dummy data specified by the line buffer 109 preview command byte 3 is written (S2307). In the next step, the process waits for the remaining image transfer to be completed. If it is determined that the image transfer has been completed (S2308), image reading end processing is performed, and the film adapter 102 is moved to the sub-scanning motor 115.
Is controlled so as to come to the initial position (S2309).
Then, the status is returned to the host computer, and this flowchart ends.

Next, basic operations of the film scanner and the host computer will be described with reference to FIG.

FIG. 5A shows a basic type of the operation sequence of the film scanner, in which the power of the film scanner is turned on.
(S2001), and initialize (initialize) (S2).
002), the next step is a command waiting routine, and waits for communication from the host computer. If there is no command communication, return (S2003). If there is command communication, go to the next step to start communication with the host computer. The process starts (S2004). If it is determined in the next step that no command has been received, the process returns. If it is determined that a command has been received (S2005), an operation corresponding to the command is executed in the next step, and the execution is sequentially sent to the host computer. The information is transmitted (S2006), and thereafter, the process returns to S2005.

FIG. 5B shows the basic type of operation sequence of the host computer. The power of the host computer is turned on (S2007), the host computer is initialized (S2008), and then the film scanner on the communication bus is turned on. Is retrieved (S2009), and application software including driver software is started (S2010).
In the next step, the user operates the application software and enters what the film scanner will do,
If it is determined that there is no operation instruction, the process returns. If it is determined that there is an operation instruction (S2011), the application software creates an operation command as a communication command and outputs it to the film scanner via the driver software (S201).
2). In the next step S2013, the application software receives the operation status from the film scanner via the driver software, provides information to the user on the screen, and ends the command response process. The process returns to step S2011 as soon as the command response process is completed.

FIG. 6 is a flowchart showing the command execution operation in step S2006 shown in FIG. 5A in the film scanner of this embodiment.

First, it is determined in step S2101 whether the command is a preview command. If the command is a preview command, the process advances to step S2102; otherwise, the process advances to step S210.
Proceed to 3. In step S2102, a sequence for executing the preview command is performed. In step S2103, it is determined whether the command is a focus adjustment command. If the command is a focus adjustment command, the process proceeds to S2104; otherwise, the process proceeds to S2104.
Proceed to 105. In S2104, a sequence for executing the focus adjustment command is performed. In step S2105, it is determined whether the command is a main scan command. If it is a main scan command, the process proceeds to S2106; otherwise, S21.
Proceed to 07. In step S2106, a sequence for executing the main scan command is performed. In step S2107, it is determined whether the command is an eject command. If the command is an eject command, the process proceeds to S2108; otherwise, the process proceeds to S2109. In S2108, a sequence for executing the eject command is performed. In step S2109, it is determined whether the command is a film type command. If it is a film type command, the flow advances to S2110; otherwise, to S2111
Proceed to. In S2110, a sequence for executing the film type command is performed. In S2111, it is determined whether or not the received command is another command (*). If the command is another command (*), the process proceeds to S2112.
Proceed to 2113. In S2112, a sequence for executing another command (*) is performed. In S2113, a process is performed when an abnormal command is input. And S
At 2114, a command execution end is transmitted to the host computer, and the command execution routine is ended.

FIG. 7 is a flowchart showing the main scan operation in S2106 shown in FIG. S2501
Then, it is determined whether or not the main scan command includes an AE designation command. If an AE is specified, the process advances to step S2502; otherwise, the process advances to step S25.
Proceed to 07.

On the other hand, in step S2502, the system controller 111 controls the sub-scanning motor 115 so as to reach the initial reference position for sub-scanning. In step S2503, the system controller 111 issues a light source lighting command to the light source lighting circuit 118. In step S2504, the system controller 111 sets a CCD driving pulse for measuring the amount of light to the image processing unit 108, and permits generation of the driving signal 120. In step S2505, a pre-scan is performed, the value of the film density is estimated from the light amount measurement result, and the value of the gain is calculated. In step S2506, the driving signal 120 is stopped. In the next step S2507, a gain value is set. In step S2508, the system controller 111 causes the sub-scanning motor 115 to move to the initial reference position for sub-scanning.
The speed of the sub-scanning motor 115 is set according to the resolution in the scan command in S2509. S251
At 0, an operation pulse in the main scanning direction is set in the image processing means 108 according to the resolution in the scan command, and a drive signal 120 is generated. In step S2511, the scan amount in the sub-scanning direction and the image processing range in the main scanning direction are determined according to the scan range in the scan command, and scanning is performed. S
At 2512, the drive signal 1 generated at S2510 is used.
Stop 20. In step S2513, the system controller 1
Numeral 11 issues a light source turn-off command to the light source lighting circuit 118. S2
At 514, the sub-scanning position detecting means 117 is monitored, and the sub-scanning motor 115 is moved to the initial reference position of the film. In step S2515, the main scan command ends.

[0058]

As described above, according to the present invention,
When reading all frames of a long photographic film at a low resolution, it is not necessary for the operator to specify the number of film frames to the host computer. A mechanism for reading the information optically and magnetically is no longer necessary.

Further, even if the feeding is stopped due to a malfunction of the film feeding mechanism, the problem that the host computer hangs up while waiting for the transfer by transferring the dummy data is also solved.

Furthermore, by providing a specific color such as white or black or a means for transferring an image as dummy data for the remaining image amount, an unpleasant image is not displayed on the host computer. This has the effect.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an example of a main part configuration according to the present invention.

FIG. 2 is an explanatory view of a film cartridge.

FIG. 3 is an explanatory diagram of a line buffer.

FIG. 4 is a flowchart showing a preview operation.

5A is a diagram illustrating a basic type of an operation sequence of a film scanner, and FIG. 5B is a diagram illustrating a basic type of an operation sequence of a host computer.

FIG. 6 is a flowchart showing a command execution operation;

FIG. 7 is a flowchart showing a main scan operation.

FIG. 8 is an explanatory diagram of a preview command.

FIG. 9 is an explanatory diagram of a Set Window command.

FIG. 10 is an explanatory diagram of a parameter list of a Set Window command.

FIG. 11 is an explanatory diagram of a Get Film Status command.

FIG. 12 is an explanatory diagram of a sense data block of a Get Film Status command.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 101 Light source (cold-cathode tube) 102 Film adapter 103 Imaging lens system 104 Linear image sensor 105 Focus fixing member 106 Black level correction circuit 107 A / D converter 108 Image processing means 109 Line buffer 110 Interface 111 System controller 112 D / A Converter 113 CPU bus 114 Host computer 115 Sub-scanning motor 116 Sub-scanning motor driver 117 Sub-scanning position detecting means 118 Light source lighting circuit 119 Magnetic information detection and recording means 120 Drive signal 121 Sample hold control signal 122 Offset RAM 123 Focus motor 130 Gamma RAM 140 Motor 141 Film cartridge 142 Controller 143 Communication line

Claims (4)

[Claims] 1. An image of a film is projected on a linear image sensor, a main scan is performed by electronic scanning in a longitudinal direction of the linear image sensor, and the image of the film and the image in a direction orthogonal to the longitudinal direction are scanned. An image reading device that performs sub-scanning by relative movement with a linear image sensor to read the film image and performs signal processing, and reads and outputs image data of a plurality of frames recorded on the film at a time. An image reading device for outputting, at the time of batch reading, image data of a specified number of frames even on a film having a number of frames less than the specified number of frames. 2. The image reading apparatus according to claim 1, wherein the image data for the shortage can be set to an arbitrary value during the batch reading. 3. The image reading apparatus according to claim 1, wherein transfer of image data is not stopped even when film feeding fails during the batch reading. 4. The image reading apparatus according to claim 1, wherein the number of normally read frames is output during the batch reading.