JP2001024883A - Picture processor, method for controlling it, and recording medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To optimize processing conditions regarding correction of defective sections of pictures. SOLUTION: A picture processor reads a picture recorded on a photographic film with respect to R, G, B, and IR(infrared region) and discriminates whether or not a defective portion is to be corrected by referring to 'presence/absence of execution of defective portion correction' which is one of defect correction parameters set by an operator (170). When the correction is to be performed, the processor detects the defective portion to be corrected of the picture in accordance with set value of 'defective portion detecting standard' based on IR data (174 and 176), selects a correcting method applied to the defective portion in accordance with the set value of 'correcting method applied to defective portion correction' (182), and corrects the defective portion to be corrected in accordance with the set value of 'degree of defective portion correction' by applying the selected correcting method (184, 186, or 188-192).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image processing apparatus, a control method for the image processing apparatus, and a recording medium, and more particularly to acquiring image information, performing predetermined processing on the acquired image information, and outputting the processed image information. The present invention relates to an image processing apparatus, a control method for controlling the image processing apparatus, and a recording medium on which a program for controlling the image processing apparatus by a computer is recorded.

[0002]

2. Description of the Related Art A photographic film may be damaged on the emulsion surface or the back surface (the back surface of the emulsion surface) depending on how to handle the film. However, the photographic film has been damaged at a portion corresponding to the image recording area of the photographic film. In this case, if the image recorded on the photographic film is output (recorded on a recording material such as photographic paper or displayed on a display means such as a display), it depends on the degree of the scratch, However, they are often clearly recognized on the output image as defective portions such as low-density streaks and white streaks. Also, when foreign matter such as dust adheres to the surface of the photographic film, the foreign matter is clearly recognized as a defective portion.

In a surface exposure type photographic printing apparatus which irradiates light on a photographic film and irradiates light transmitted through the photographic film onto a photographic paper to expose and record an image on the photographic paper, a light source is used as a measure against scratches on the photographic film. A diffusion plate is disposed between the photographic film and the photographic film, and the light scattered by the diffusion plate is irradiated on the photographic film. However, it is difficult to erase a defective portion in an output image (an image recorded on a photographic paper by exposure) with the above technique, and the defect is only slightly reduced (the defective portion becomes less noticeable).

Further, an image recorded on a photographic film is represented by C
As a technique applied to an image reading apparatus that reads by a reading sensor such as a CD, Japanese Patent Application Laid-Open No. 11-75039 includes three wavelengths in a visible light range and one wavelength in a non-visible light range (for example, an infrared range or an ultraviolet range). A technique is disclosed in which a photographic film is read in at least four wavelength regions or more, and image information obtained by reading in a visible light region is corrected based on information obtained by reading in a non-visible light region.

The amount of transmitted light in the visible light range changes in accordance with the image density recorded on the photographic film, and at the same time, the light is partially refracted by the scratches or foreign matter even in the places where the photographic film has scratches or foreign matter. The amount of transmitted light is changed by being reflected or reflected. On the other hand, the light in the invisible light range is not affected by the image density recorded on the photographic film, although the amount of transmitted light changes at a portion where the photographic film has scratches or foreign matter.

Therefore, according to the technique described in Japanese Patent Application Laid-Open No. H11-75039, a flaw or a foreign matter on a photographic film is detected from a change in the amount of transmitted light in an invisible light range, and the photographic film is detected. Correcting fluctuations in the amount of transmitted light in the visible light range caused by scratches or foreign matter that is present, that is, images caused by scratches or foreign matter attached to the photographic film (represented by image information obtained by reading the visible light range) It is possible to reliably correct the defective portion of the image).

[0007]

However, the optimum processing conditions for correcting a defective portion caused by a scratch or foreign matter on a photographic film differ depending on various factors. The technique described in the above publication does not consider this point.

[0008] That is, at present, a plurality of types of correction methods are proposed as a correction method (correction algorithm) for correcting a defective portion. It has different features such as "high accuracy". Therefore, the repair method to be applied to the repair of the defective portion differs depending on the correction accuracy and the target processing speed required for the repair of the defective portion.

[0009] Even if any of a plurality of types of correction methods are applied, it takes time to detect and correct a defective portion. For example, an image recorded on a large amount of photographic film is read, and an image obtained by the reading is read. If you want to process and output information as fast as possible, increase the processing speed even if the quality of the output image is sacrificed by detecting and correcting defective parts. May be required to be prioritized.

Further, the degree of repair of a defective portion (how much the defective portion is repaired) affects the accuracy of repair of the defective portion and the finish when the repair fails, and even when a certain repair method is applied, Depending on the degree of correction of the defective part, the accuracy of correction of the defective part and the finish when the correction fails are changed. Therefore, regarding the degree of correction in the repair of the defective portion, depending on the correction accuracy required for the correction of the defective portion and the correction work that has to be performed depending on the finish when the correction fails, it is necessary for the operator to intervene. It depends on the permissible implementation frequency of the parameter correction operation).

In addition, for example, when a photographic film has a large number of scratches, it is originally desirable to correct a large number of defective portions corresponding to the respective scratches. When the size of the output image is small, many defects corresponding to small scratches (size and depth) on the photographic film are visible on the output image, while many of the parts are visible. It can be a very small defect of a difficult degree. As described above, the reference of the defective portion to be corrected also differs depending on the size of the output image, the target processing speed, and other factors.

On the other hand, in a large number of photoelectric conversion cells of a photoelectric conversion element such as a CCD built in a digital still camera (DSC: hereinafter simply referred to as a digital camera), a relationship between an incident light amount and an output signal is expected. Even if there is a cell (so-called defective pixel) having a different relationship, the image represented by the image data obtained by imaging the subject has the same effect as a defective portion caused by a scratch or foreign matter on the photographic film. The defective portion is generated. This defective portion can be repaired in the same manner as a defective portion caused by a scratch or foreign matter on a photographic film, and therefore, the optimum processing conditions in this repair differ depending on various factors.

The present invention has been made in view of the above facts, and has an image processing apparatus, an image processing apparatus control method, and a recording medium capable of optimizing processing conditions for correcting a defective portion of an image. The goal is to obtain

[0014]

In order to achieve the above object, an image processing apparatus according to the first aspect of the present invention acquires image information, performs predetermined processing on the acquired image information, and outputs the processed image information. An image processing apparatus, comprising: detecting means for detecting a defective portion of an image represented by the acquired image information; and setting parameters for correcting the defective portion, and correcting the defective portion on the image information. Correction means, input means for inputting an instruction relating to correction of a defective part, and detection of a defective part by the detection means in accordance with an instruction relating to correction of the defective part inputted via the input means; At least one of the setting of the defect and the correction of the defective part
And control means for controlling the two.

The image processing apparatus according to the first aspect of the present invention acquires image information, performs predetermined processing on the acquired image information, and outputs the processed image information. Irradiating light on a recording medium such as the one described above, and photoelectrically converting (reading) light transmitted or reflected by the recording medium by a photoelectric conversion element having a large number of photoelectric conversion cells, thereby reading an image recorded on the recording medium. Get image information,
As a predetermined process, various corrections (for example, darkness correction and shading correction, etc.) and various image processings (for example, color correction and density correction, etc.) may be performed and output, or light from a subject may be photoelectrically converted. A configuration in which image information of an image including the subject is acquired by performing photoelectric conversion by an element, and various kinds of correction and compression of image information are performed as predetermined processing and output (stored) to an information storage medium (a so-called “storage”). Digital camera).

An image reading apparatus which acquires image information by reading an image recorded on a recording medium and performs various corrections (for example, darkness correction and shading correction) as predetermined processing according to the present invention. A configuration in which image information may be obtained from an image reading device or an image information input device such as a digital camera, and various types of image processing (for example, color correction and density correction) may be performed as predetermined processing and output. May be used as the image processing apparatus according to the present invention.

According to the first aspect of the present invention, there is provided an image processing apparatus, comprising: detecting means for detecting a defective portion of an image represented by acquired image information; and a parameter for correcting the defective portion; On the other hand, there is provided a correcting means for correcting a defective portion. The detection of the defective portion of the image by the detection means can be specifically performed as follows.

That is, in the aspect in which the image information of the image is acquired by reading the image recorded on the recording medium, detecting the defective portion caused by a scratch or a foreign substance attached to the recording medium may be performed by, for example, As described in 7,
This can be performed by irradiating the recording medium on which the image is recorded with invisible light and detecting (photoelectric conversion) the invisible light transmitted or reflected by the recording medium. Further, in an aspect in which image information is obtained using a photoelectric conversion element, detecting a defective portion caused by a defective pixel of the photoelectric conversion element is performed, for example, at the time of manufacturing an image processing apparatus, by detecting a defective photoelectric conversion element. If the information for specifying the defective pixel is stored in the storage means, it can be performed by reading the information for specifying the defective pixel stored in the storage means.
Detection of a defective portion in an image processing apparatus configured to acquire image information from an image information input device, perform various types of image processing, and output the image information is performed by acquiring information on a defective portion of an image from the image information input device. be able to.

On the other hand, the correction of the defective portion by the correcting means is performed by, for example, as described in claim 7, information on a region corresponding to the defective portion of the image is replaced with information on a region existing around the defective portion on the image. The determination can be made by interpolation from information or by correcting the luminance of the defective portion so as to change.
The parameters (parameters for correcting a defective portion) set by the correcting means include, for example, the presence or absence of a defective portion to be corrected, information for specifying the defective portion to be corrected, and a method of correcting the defective portion. At least one of the information and the information indicating the degree of correction and the amount of correction for the defective portion can be used.

According to the first aspect of the present invention, there is provided input means for inputting an instruction relating to the correction of the defective part, and the control means operates in accordance with the instruction relating to the correction of the defective part inputted through the input means. At least one of detection of a defective portion by the detecting means, setting of parameters by the correcting means, and correction of the defective portion is controlled. The control of the detection of the defective portion by the detecting means can be performed, for example, by setting a reference for detecting the defective portion to be corrected by the detecting means.

The setting of the parameter and the control of the correction of the defective portion by the correction means are performed, for example, by setting a correction method to be applied among a plurality of correction methods for the defective portion. This can be realized by performing at least one of setting a range, setting a degree of correction of a defective portion, and setting a criterion for selecting a defective portion to be corrected among the defective portions detected by the detecting means. .

As described above, according to the first aspect of the present invention, detection of a defective portion by the detecting device, setting of parameters by the correcting device, and correction of the defective portion are performed in accordance with an instruction regarding correction of the defective portion input through the input device. Since at least one is controlled, an instruction regarding the correction of the defective portion is input through the input unit so that the processing condition for the correction of the defective portion of the image is optimized. Can be optimized.

In the present invention, the instruction for correcting a defective portion input through the input means is, specifically,
For example, an instruction as described in the following claims 2 to 5 can be given. That is, according to the second aspect of the present invention, in the first aspect of the present invention, the instruction regarding the correction of the defective portion is
Selection of a repair method to be applied from among a plurality of repair methods for a defective portion, or an application range of each of the plurality of repair methods is instructed via input means, and the control means includes The correction means is controlled such that the correction method instructed to be selected is applied and the defective portion is corrected, or a plurality of types of correction methods are applied within the application range specified via the input means. It is characterized in that the correcting means is controlled so that the defective portion is corrected.

According to the second aspect of the present invention, selection of a repair method to be applied from among a plurality of repair methods or a range of application of each of the plurality of repair methods is provided as an instruction regarding repair of a defective portion. For example, based on the feature amount of the defective portion (for example, the correlation of the change in density of each component color in the defective portion of the image represented by the image information), each of the plurality of types of correction methods is applied to which case. A plurality of types of correction methods that are instructed via input means and have different features depending on, for example, correction accuracy or target processing speed required for correction of a defective portion. The user can select a correction method to be applied from the list and indicate the applicable range of each of the plurality of types of correction methods.

According to a second aspect of the present invention, the control means controls the correction means such that the correction method instructed to be selected through the input means is applied to correct the defective portion, or a plurality of types of the correction means are provided. Since the correction means is controlled such that the correction method is applied within the applicable range instructed via the input means to correct the defective portion, the correction accuracy and the target required for the correction of the defective portion are set. Depending on factors such as the processing speed, it is possible to optimize the correction method to be applied to the correction of the defective portion or the application range of one of a plurality of types of correction methods (one of the processing conditions for correcting the defective portion of the image). .

According to a third aspect of the present invention, in the first aspect of the present invention, whether or not the defective portion is to be repaired is instructed via the input means as an instruction relating to the repair of the defective portion. When an instruction to perform the correction is given, control is performed such that the detection unit detects the defective portion and the correction unit corrects the defective portion.

According to the third aspect of the present invention, whether or not a defective portion is to be repaired is instructed via an input means as an instruction relating to the repair of a defective portion. It is possible to instruct whether or not to repair a defective portion according to a target processing speed of the apparatus or the like. And
The control means according to claim 3, wherein when the instruction to correct the defective portion is given, the control means controls the detection means to detect the defective portion and to correct the defective portion by the correcting means. Depending on factors such as the target processing speed of
Whether or not a defective portion is to be corrected (one of the processing conditions for correcting a defective portion of an image) can be optimized.

According to a fourth aspect of the present invention, in the first aspect of the present invention, as an instruction relating to the correction of the defective portion, the degree of correction for the defective portion is instructed via the input means, and the control means is instructed through the input means. The correction unit is controlled so that the defective portion is corrected at the corrected degree.

According to the fourth aspect of the present invention, the degree of correction for the defective portion is instructed via the input means as an instruction relating to the correction of the defective portion. The degree of correction for the defective portion can be indicated according to the correction accuracy that is required, the permissible frequency of the correction work that may need to be performed when the correction fails, and the like. The control means according to the fourth aspect of the present invention controls the correction means so that the defective portion is corrected with the specified correction degree, so that the correction accuracy and correction work required for the correction of the defective portion are performed. The degree of correction of a defective portion (one of the processing conditions for correcting a defective portion of an image) can be optimized according to factors such as the permissible implementation frequency.

According to a fifth aspect of the present invention, in the first aspect of the present invention, a detection criterion or a selection criterion of a defective portion to be corrected is instructed through the input means as an instruction regarding the repair of the defective portion. The control means controls the detection means so that only a defective portion to be corrected is detected based on a detection criterion instructed via the input means,
Or controlling the correcting means so that only the defective part to be corrected is selectively corrected based on the selection criterion specified through the input means among the defective parts detected by the detecting means. It is characterized by.

According to the fifth aspect of the present invention, as an instruction relating to the repair of a defective portion, a criterion for detecting a defective portion to be repaired or a criterion for selecting a defective portion is instructed via input means. For example, the detection criterion or selection criterion of a defective portion to be corrected can be specified according to the correction accuracy and target processing speed required for the correction of the defective portion, or the size of the image represented by the output image information. Have been.

Further, the control means according to the invention of claim 5 includes:
The detecting means is controlled so that only the defective part to be corrected by the specified detection criterion is detected, or a defect to be corrected by the specified selection criterion among the defective parts detected by the detecting means. Since the correction means is controlled so that only the part is selectively corrected, the correction accuracy and the target processing speed required for the correction of the defective part,
Alternatively, optimizing a detection criterion or a selection criterion (one of processing conditions for correcting a defective portion of an image) of a defective portion to be corrected in accordance with factors such as the size of an image represented by output image information. Can be.

According to a fifth aspect of the present invention, the acquired image information is image information representing a physical quantity related to the amount of light transmitted or reflected by the image recorded on the recording medium. In the case of correcting a defective portion caused by a scratch or a foreign matter, for example, as described in claim 6, a defective portion on a recording medium is used as a detection standard or a selection standard of a defective portion to be corrected. A threshold value of a light amount variation amount of light (for example, invisible light) transmitted or reflected at a location to be caused by a scratch or a foreign substance attached to the location may be designated via input means. In this case, only defective portions whose light amount variation is equal to or larger than the threshold or larger than the threshold may be selected as correction targets, or only defective portions whose light amount variation is equal to or smaller than the threshold or smaller than the threshold may be selected as correction targets. It may be.

In the case where the acquired image information is image information representing an image recorded on a recording medium, the detecting means may record the image represented by the image information. By irradiating the recording medium with invisible light, a portion having a scratch or a foreign substance in an image recording area on the recording medium is detected as a defective portion of the image represented by the image information, and the correcting unit detects the defect of the image. The information of the area corresponding to the part is obtained by interpolation from the information of the area existing around the defective part on the image, or by correcting so that the luminance of the defective part changes, the image information is corrected. It is preferable to correct the defective portion.

According to the seventh aspect of the present invention, the recording medium on which the image represented by the image information is recorded is irradiated with invisible light, so that a defective portion of the image represented by the image information is formed within the image recording area on the recording medium. Since a portion with a scratch or foreign matter is detected, a defective portion caused by the scratch or foreign matter on the recording medium can be reliably detected. In addition, information of an area corresponding to a defective portion of the image is obtained by interpolation from information of an area existing around the defective portion on the image, or is corrected so that the luminance of the defective portion changes. As compared with the case where the light applied to the medium is diffused by a diffusion plate or the like, the defective portion can be surely corrected.

According to an eighth aspect of the present invention, in the first aspect of the present invention, the defective portion is corrected by the display means for displaying an image, the image represented by the acquired image information, and the correcting means. Display control means for displaying at least one of the images represented by the image information on the display means.

According to the present invention, display means for displaying an image is provided, and the image represented by the acquired image information and the image represented by the image information obtained by correcting the defective portion by the correction means are provided. Is displayed on the display means. Thus, for example, when an image represented by the acquired image information (an image in which a defective portion has not been corrected) is displayed on the display means, the operator can visually check the displayed image to correct the defective portion. Instructions can be input. Further, when an image represented by the image information in which the defective part has been corrected by the correcting means is displayed on the display means, the operator can visually check the displayed image to determine whether the previously input defective part is correct. It is possible to confirm whether or not the instruction regarding the correction is appropriate. Therefore,
According to the invention of claim 8, the operator can more easily determine and input an instruction relating to the correction of the defective portion.

According to a ninth aspect of the invention, there is provided a method for controlling an image processing apparatus, comprising acquiring image information, performing predetermined processing on the acquired image information, outputting the processed image information, and displaying the acquired image information. Detecting means for detecting a defective portion of the image;
Correcting means for setting a parameter for correcting the defective portion and correcting the defective portion with respect to the image information; anda control method of the image processing device for controlling the image processing device, comprising: A request for input of an instruction relating to correction is made, and at least one of detection of the defective part by the detecting means, setting of parameters by the correcting means, and correction of the defective part is performed in accordance with the instruction relating to the correction of the defective part inputted through the input means.
Since the first and second aspects are controlled, it is possible to optimize the processing conditions for correcting a defective portion of an image, as in the first aspect of the present invention.

The recording medium according to the tenth aspect of the present invention
Acquiring image information, performing predetermined processing on the acquired image information and outputting the image information, and detecting means for detecting a defective portion of an image represented by the obtained image information, and correcting the defective portion. A first step of requesting the input of an instruction relating to the correction of a defective portion in the image processing apparatus having the correction means for setting a parameter and correcting the defective portion with respect to the image information; And causing the computer to execute a process including a second step of controlling at least one of the detection of the defective portion by the detection unit, the setting of the parameter by the correction unit, and the correction of the defective portion in accordance with the instruction regarding the correction of the defective portion. The program for is recorded.

According to a tenth aspect of the present invention, the recording medium according to the first aspect includes a process including the first and second steps, that is, a computer (for example, a computer having an image processing apparatus built therein). Since a program for functioning as a control unit of the image processing apparatus is recorded, the computer reads out and executes the program recorded on the recording medium, so that a defective portion of the image is recorded in the same manner as the invention of claim 1. It is possible to optimize the processing conditions for the correction of.

[0041]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an example of an embodiment of the present invention will be described in detail with reference to the drawings. In the following, as an example, a case where a defective portion caused by a scratch or a foreign substance on a photographic film is corrected will be described.

FIG. 1 shows an image processing system 10 according to the present embodiment. The image processing system 10 includes a film scanner 12, an image processing device 14, and a printer 1.
6 are connected in series. Note that the film scanner 12 and the image processing device 14 correspond to the image processing device according to the present invention.

The film scanner 12 is a film image recorded on a photographic material (hereinafter simply referred to as a photographic film) such as a photographic film (for example, a negative film or a reversal film). (A visualized negative image or positive image) and outputs image data obtained by the reading. As shown in FIG. 2, a light source 20 composed of a halogen lamp or the like and irradiating the photographic film 26 with light is used. It has. The light emitted from the light source includes light having a wavelength in the visible light range and light having a wavelength in the infrared range.

On the light exit side of the light source 20, a photographic film 2
A stop 21, a filter unit 23, and a light diffusion box 22 for diffusing the light irradiated on the photographic film 26 are arranged in this order.
The filter unit 23 includes a filter 23C that transmits only light in a wavelength range corresponding to R (R light) of incident light, and a filter 23M that transmits only light in a wavelength range corresponding to G (G light) of incident light. A filter 23Y that transmits only light in a wavelength range corresponding to B (B light) of incident light and a filter 23IR that transmits only infrared light (IR light) of the incident light are shown in FIG. It is configured to be fitted into a turret 23A rotatable in the direction of arrow A.

On the side opposite to the light source 20 with the photographic film 26 interposed therebetween, a lens 28 for forming an image of light transmitted through the photographic film 26 and an area CCD 30 are arranged in order along the optical axis L. The area CCD 30 is a monochrome CCD in which a number of CCD cells each having sensitivity in the visible light region and the infrared region are arranged in a matrix, and is arranged so that the light receiving surface coincides with the imaging point position of the lens 28. I have. A shutter (not shown) is provided between the area CCD 30 and the lens 28.

The area CCD 30 is connected to a scanner controller 33 via a CCD driver 31. The scanner control unit 33 includes a CPU, a ROM (for example, a ROM whose storage content is rewritable), a RAM, and an input / output port, which are connected to each other via a bus or the like.
The scanner control unit 33 controls the operation of each unit of the film scanner 12. In addition, the CCD driver 31 has an area CC.
A drive signal for driving D30 is generated, and area CC is generated.
The driving of D30 is controlled.

The photographic film 26 is a film carrier 24
1 (see FIG. 1, not shown in FIG. 2), and is positioned at a position (reading position) where the center of the screen of the film image coincides with the optical axis L. Also, the filter unit 23
In the state where the film image of the photographic film 26 is positioned at the reading position, the turret 23A is arranged such that each filter 23 except the filter 23IR or all the filters 23 including the filter 23IR are sequentially positioned on the optical axis L.
Is rotated.

Thus, the film image recording area on the photographic film 26 is sequentially read by the R light, the G light, the B light (and the IR light), and the area CCD 30 outputs a signal corresponding to the film image. Area CCD30
The signal output from is converted into digital image data by the A / D converter 32 and input to the image processing device 14. This image data is R, G, B (and IR)
And the data of each of the R, G, and B wavelength ranges excluding IR correspond to the image information of the present invention.

On the other hand, the scanner correction section 36 of the image processing device 14 sequentially performs various correction processes such as dark correction, density conversion, shading correction and the like on the input image data. An output terminal of the scanner correction unit 36 is connected to an input terminal of the I / O controller 38, and the image data subjected to each of the processes in the scanner correction unit 36 is input to the I / O controller 38. An input terminal of the I / O controller 38 is also connected to a data output terminal of the image processor 40, and receives image data subjected to image processing (details will be described later) from the image processor 40.

The input terminal of the I / O controller 38 is also connected to the control unit 42. The control unit 42 has an expansion slot (not shown). The expansion slot includes a PC card or an I / O card that can be loaded into the digital still camera.
A driver (not shown) for reading / writing data from / to an information storage medium such as a C card (hereinafter, collectively referred to as a digital camera card), a CD-R, etc., and for communicating with other information processing devices. Are connected. Image data input from outside via the expansion slot is input to the I / O controller 38.

The output terminal of the I / O controller 38 is connected to the data input terminal of the image processor 40 and the control unit 42, respectively, and further connected to the printer 16 via the I / F circuit 54. The I / O controller 38
The input image data is selectively output to each of the devices connected to the output terminal.

In this embodiment, each film image recorded on the photographic film 26 is read twice by the film scanner 12 at different resolutions.
First scan at relatively low resolution (pre-scan)
Then, even when the density of the film image is very low, the reading conditions (R, G,
Each film image is read at the light amount for each wavelength range B (the charge accumulation time of the area CCD 30). In this embodiment, IR reading is not performed at the time of prescan. Data (pre-scan image data) obtained by this pre-scan is input from the I / O controller 38 to the control unit 42.

The control unit 42 includes a CPU 46, a RAM 48,
ROM 50 (for example, a ROM whose storage content can be rewritten),
An input / output port 52 is provided, and these are connected to each other via a bus. The control unit 42 calculates an image feature amount such as a density of a film image based on the pre-scan image data input from the I / O controller 38,
For each film image, the reading conditions when the film scanner 12 performs re-reading (fine scan) at a relatively high resolution are determined, and the determined reading conditions are output to the film scanner 12.

Further, the control unit 42 calculates an image feature amount including extraction of a main part (for example, a region corresponding to a person's face (face region)) in the film image based on the pre-scanned image data. The scanner 12 automatically determines the processing conditions of various image processing for the image data (fine scan image data) obtained by performing the fine scan by calculation (setup calculation), and outputs the determined processing conditions to the image processor 40. I do.

Note that the control unit 42 controls the film scanner 1
A function for searching whether or not a defective portion caused by a foreign matter such as a scratch or dust attached to the photographic film 26 is present in an image represented by the image data, based on the IR data input from Step 2 Reference numeral 40 has a function of setting parameters for performing the defective portion correcting process.

A display 43, a keyboard 44, and a mouse (not shown) are connected to the bus of the control unit 42. Note that the keyboard 44 and the mouse correspond to the input means of the present invention, and the display 43 is provided in claim 8.
Corresponds to the display means described in (1).

The control unit 42 performs image processing equivalent to the image processing performed by the image processor 40 on the fine scan image data on the pre-scan image data based on the processing conditions of the calculated image processing. Generate data. Then, the generated simulation image data is converted into a signal for displaying an image on the display 43, and the simulation image is displayed on the display 43 based on the signal. In addition, when the operator checks the displayed simulation image for image quality and the like, and information indicating correction of processing conditions is input as a result of the inspection via the keyboard 44 or the mouse, the operator performs a test based on the input information. Recalculation of the processing conditions of the image processing is performed.

On the other hand, fine scan is performed on the film image by the film
The image data (fine scan image data) input to the / O controller 38 is input from the I / O controller 38 to the image processor 40.

The image processor 40 performs color / density correction processing including gradation conversion and color conversion, pixel density conversion processing, hypertone processing for compressing the gradation of an extremely low frequency luminance component of an image, and sharpness while suppressing graininess. Image processing circuits for performing various image processing such as hyper-sharpness processing for enhancing the image data.
Various image processing is performed according to the processing conditions determined and notified for each image by the control unit 42. Further, the image processor 40 has a function of performing a defective portion correcting process according to the parameters set by the control unit 42.

When the image data processed by the image processor 40 is used for recording an image on photographic paper, the image data processed by the image processor 40 is transmitted from the I / O controller 38 to the I / O controller 38. / F circuit 54
Is output to the printer 16 as image data for recording via the. When the image data after the image processing is output to the outside as an image file, the image data is output from the I / O controller 38 to the control unit 42. As a result, the control unit 42 outputs the image data input from the I / O controller 38 for output to the outside to the outside (the driver, the communication control device, or the like) as an image file via the expansion slot.

The printer 16 includes an image memory 58, R,
G and B laser light sources 60 and a laser driver 62 for controlling the operation of the laser light sources 60 are provided. The recording image data input from the image processing device 14 is stored in an image memory 58.
Is read out after being stored once, and is used for modulating the R, G, B laser light emitted from the laser light source 60.
The laser light emitted from the laser light source 60 is scanned on a printing paper 68 via a polygon mirror 64 and an fθ lens 66, and an image is exposed and recorded on the printing paper 68. The photographic paper 68 on which the image has been exposed and recorded is sent to the processor section 18 and subjected to color development, bleach-fixing, washing and drying.
Thus, the image recorded on the printing paper 68 by exposure is visualized.

Next, as an operation of the present embodiment, the principle of detection of a portion where a photographic film has a scratch or foreign matter by using IR light will be described. As shown in FIG. 3A, the amount of transmitted light when irradiating light on a portion of the surface of the photographic film on which no scratch or foreign matter is attached is larger than the amount of light incident on the photographic film by the amount of light absorbed by the photographic film. Attenuate by the amount of attenuation corresponding to. The wavelength range in which light is absorbed in the photographic film is approximately the visible light range, and IR light in the infrared range is hardly absorbed. The light quantity only slightly changes from the incident light quantity.

On the other hand, when light is applied to a damaged portion on a photographic film, a part of the irradiated light is refracted by the damaged portion. The amount of transmitted light (the amount of light transmitted linearly through the above-mentioned portion) is determined by the amount of light incident on the photographic film, the amount of attenuation caused by the absorption of light by the photographic film, and the amount of attenuation caused by refraction of light by scratches. Attenuates by the added amount of attenuation.
Note that FIG. 3A illustrates a case where the light incident side has a flaw, but the same applies to a case where the light exit side has a flaw.

Since the refraction of light due to scratches is also caused by IR light, the amount of transmitted IR light when the above-mentioned scratched portion is irradiated with IR light is attenuated according to the attenuation caused by the refraction of light due to the scratches. Decay by an amount. As shown in FIG. 3B, the refraction of light due to a flaw becomes remarkable as the scale (depth, etc.) of the flaw increases (visible light also has IR rays).
(The same applies to light.) Therefore, the amount of transmitted light when the above-mentioned scratched portion is irradiated with IR light decreases as the scale of the scratch increases. Therefore, the scale of the flaw on the photographic film can be detected based on the attenuation of the amount of transmitted IR light.

When light is applied to a portion of a photographic film on which foreign matter such as dust is attached, the irradiated light is reflected by the foreign matter, and thus depends on the size and type (light transmittance) of the foreign matter. In addition, when light is applied to a portion where the foreign matter is attached, the amount of transmitted light is greatly attenuated by the foreign matter. Attenuation of the amount of transmitted light when light is applied to a portion where a foreign substance is attached is the same as when the IR light is applied to the portion.

As described above, when the IR light is transmitted through the photographic film, the amount of transmitted light changes only at a portion of the photographic film where a scratch or foreign matter is attached, and even if an image is recorded on the photographic film. Since the image is not affected by the change in the transmission density of the image, the photographic film is irradiated with IR light to detect the amount of transmitted light, so that scratches and foreign substances on the photographic film can be detected.

Next, correction of a defective portion of an image represented by image data will be described. At the spot on the photographic film where there is a scratch or foreign matter, as described above, visible light (for example, R light,
(G light, B light) also changes, so that an area corresponding to a spot with a scratch or foreign matter on an image represented by image data obtained by photoelectrically converting visible light transmitted through a photographic film. Brightness and color are different from the original brightness and color (defects caused by scratches or foreign matter).

As shown in FIG. 3B, the emulsion layer of the photographic film is composed of R, G, and B photosensitive layers, and the image is exposed, recorded, and subjected to processing such as development. In the film (negative film), a negative C image is formed on the R photosensitive layer, a negative M image is formed on the G photosensitive layer, and a negative Y image is formed on the B photosensitive layer. Of the visible light transmitted through the photographic film, R light is attenuated (absorbed) by an amount corresponding to the transmission density of the negative C image in the R photosensitive layer.
The G light is attenuated (absorbed) by an amount corresponding to the transmission density of the negative M image in the G photosensitive layer, and the B light is attenuated by an amount corresponding to the transmission density of the negative Y image in the B photosensitive layer. Attenuated (absorbed).

Here, as shown in FIG. 3B, for example, when the back surface opposite to the emulsion surface is scratched,
The ratio of light absorption in each of the R, G, and B photosensitive layers to transmitted light is the same as that in the case where no damage is made. That is, in FIG. 3B, the incident light amount on the photographic film is I ₀ , and the transmitted light _amounts of R light, G light, and B light when there is no flaw are I _0R , I _0G , and I _0B , respectively. When the mark is attached, the amount of light that is linearly transmitted through the scratched portion and enters the emulsion layer is represented by I ₁ (I ₁ <I ₀ : I ₀ −I ₁ is the amount of light attenuation due to the scratch). Assuming that the transmitted light amounts of the R light, the G light, and the B light when attached are I _1R , I _1G , and I _1B , respectively, the following equation (1) holds. _{I 0R / I 0 ≒ I 1R} / I 1 I 0G / I 0 ≒ I 1G / I 1 I 0B / I 0 ≒ I 1B / I 1 ... (1)

Therefore, the defective portion corresponding to the portion where the back surface is scratched changes only the luminance as compared with the case where there is no scratch, and the color information of the image recorded on the photographic film is preserved. When the photographic film is irradiated with IR light, the IR
By adjusting the luminance of the defective area based on the ratio of the amount of incident light to the amount of emitted light or other physical quantity, it is possible to correct the defective part of the image represented by the image data (the luminance adjustment method).

In the case where the emulsion surface is damaged as shown in FIG. 3C, for example, if the emulsion surface is shallow, a part of each photosensitive layer is cut off, so that the transmitted light is reduced. The ratio of light absorption in each of the R, G, and B photosensitive layers with respect to is different from that in the case where there is no flaw. In addition, if the photosensitive layer is very deeply scratched such that all the photosensitive layers are peeled off, the light does not absorb the transmitted light in each photosensitive layer. Therefore, in any case, the relationship of the expression (1) does not hold.

As described above, the defect and the defect corresponding to the portion where the emulsion surface is scratched have different luminance and color compared to the case where there is no scratch regardless of the depth of the scratch. ,
Since the color information of the image recorded on the photographic film is also lost, it is difficult to accurately correct the defective portion even if the luminance is adjusted. For this reason, a correction method (interpolation method) for determining the luminance and density of a defective portion by interpolation from information on the area around the defective portion is suitable for correcting a defective portion corresponding to a portion where the emulsion surface is damaged. ing.

Note that the defective portions caused by the presence of foreign matter on the photographic film change in luminance and color as compared with the case where no foreign matter is attached. In this case, the interpolation method is also suitable.

Next, the defect correction parameter setting processing according to the present embodiment will be described. This defect correction parameter setting process is performed together with a defect portion correction condition determination process described later.
The defect correction parameter setting process is a process to which the control method of the image processing apparatus according to claim 9 is applied.
The defect correction parameter setting program is realized by the second CPU 46 executing the defect correction parameter setting program, and the defective part correction condition determination processing is realized by the defect part correction condition determination program being executed by the CPU 46 of the control unit 42. The defect correction parameter setting program and the defective portion correction condition determination program are initially stored in the information storage medium 72 (see FIG. 1) together with a program for causing the CPU 46 to execute other processes. Although the information storage medium 72 is shown as a floppy disk in FIG. 1, it may be constituted by a CD-ROM, a memory card, or the like.

When an information storage medium 72 is loaded into an information reading device (not shown) connected to the control unit 42 and transfer (installation) of a program from the information storage medium 72 to the image processing apparatus 14 is instructed, the information The reading device reads a defect correction parameter setting program, a defective portion correction condition determination program, and the like from the information storage medium 72, and stores the stored content in the rewritable ROM 50. Then, when it is time to execute the defect correction parameter setting process, a defect correction parameter setting program is read from the ROM 50, the program is executed by the CPU 46, and when the timing to execute the defect portion correction condition determination process comes. , A defective part repair condition determination program is read out from the ROM 50, and is read by the CPU 46.
Performed by

Thus, the image processing device 14 functions as the image processing device according to the first aspect. in this way,
An information storage medium 72 storing a defect correction parameter setting program, a defective portion correction condition determination program, and the like corresponds to the recording medium according to claim 10.

The defect correction parameter setting processing is performed at an arbitrary timing (for example, at the time of installation of the image processing system 10, at the start of a day, or at the start of processing of an individual photo film, etc.) in accordance with an instruction from the operator. Be executed. As shown in the flowchart of FIG. 4, first, in step 100, the current setting value of the defect correction parameter is set to RO.
Import from storage means such as M50. As shown in Table 1 below, the defect correction parameters according to the present embodiment are “whether or not to perform defective part correction” and “the correction method applied to defective part correction”.
It includes items of “degree of correction of defective portion” and “detection standard of defective portion”, and information is set for each item.

[0078]

[Table 1]

A default value is set for each item constituting the defect correction parameter. When the image processing system 10 is installed, a default value is stored for each item as a defect correction parameter in the storage means. I have. When the defect correction parameter setting process is first executed, default values are fetched from the storage means for each item as current setting values.

In the next step 102, as shown in FIG. 5, for example, a defect correction parameter setting screen for setting information on each item constituting the defect correction parameters is displayed on the display 43, and
The current setting value taken in step is displayed on the defect correction parameter setting screen. In step 104, a message requesting the operator to set the defect correction parameters is displayed on the display 43. Step 100 above
Reference numeral 104 corresponds to requesting "input of an instruction regarding correction of a defective portion". Step 1
At 06, it is determined whether or not the defect correction parameter has been set, and the process waits until the determination is affirmed.

Thus, by referring to the defect correction parameter setting screen, the operator recognizes the current setting value of each item constituting the defect correction parameter and takes into account factors such as the target processing speed of the image processing apparatus 14. Then, among the items, the item whose setting value should be changed is determined, and a new value (information) is set for the item whose setting value is determined to be changed.

For example, if it is desired to process the image processing system 10 at the highest possible speed at the expense of improving the image quality of the output image by correcting a defective portion in the image, Operates the keyboard 44 or the mouse, and selects "do not execute" as "whether or not to perform defective part correction". In this case, since the defective portion is not corrected (details will be described later), it is not necessary to set information on other items constituting the defect correction parameter. On the other hand, for example, when importance is attached to the improvement of the image quality of the output image, the operator operates the keyboard 44 or the mouse and selects “execute” as “whether or not to perform the defect portion correction”. Detecting and correcting a defective portion is performed only when “execute” is selected (described later).

In the present embodiment, two types of correction methods, ie, an interpolation method and a luminance adjustment method, are prepared as a method for correcting a defective portion. As described above, the interpolation method is a method of correcting a defective portion by newly obtaining the luminance and color of a defective portion from the luminance and color of an area other than the defective portion in the image by interpolation. Even if the information of the subject corresponding to the part is completely lost from the image data, the defective part can be corrected, and the correction accuracy is relatively high. However, it has the drawbacks that the processing is complicated and that an unsuccessful correction tends to result in an unnatural image, and the operation of adjusting the parameters when the correction fails is complicated.

The luminance adjustment method is a method of correcting a defective portion by correcting the luminance of a defective portion in image data. The method is simple, has few correction failures, and has a relatively low correction accuracy. It has the feature that an unnatural image is unlikely to occur even if it fails. However, when the information of the subject corresponding to the defective portion is completely lost from the image data, the defective portion cannot be corrected. As described above, the two types of correction methods have different features.

For this reason, for example, when it is particularly strongly desired that a defective portion in an image is corrected with high precision, the operator operates the keyboard 44 or the mouse to select “the correction method applied to the defective portion correction”. "Select only interpolation method". In this case, the defective portion is corrected by applying only the interpolation method (described later).

Further, for example, in a case where it is particularly strongly desired that a reduction in processing speed is suppressed to a minimum rather than that a defective portion is corrected with high accuracy, the operator operates the keyboard 44 or the mouse. Then, "only the luminance adjustment method" is selected as the "correction method applied to the defective portion correction". In this case, the defective portion is corrected by applying only the brightness adjustment method (described later).

In the case where, for example, importance is attached to the correction accuracy and the processing speed of the defective portion at the same level, the operator operates the keyboard 44 or the mouse and sets “the correction method applied to the defective portion correction” to “apply both. And specify the applicable range of both correction methods. As an example, FIG. 5 shows an example in which a bar for designating the application range of each correction method is scaled so that the application range (application ratio) can be changed stepwise, and an upward arrow symbol By sliding "▲" along the bar, the applicable range of each correction method can be specified. Instead of this, the applicable range may be designated by a numerical value.

In the present embodiment, when “apply both” is set as the “repair method applied to defect portion correction”, a predetermined feature amount is calculated for each defect portion to be corrected, and the calculation is performed. By comparing the predetermined feature value with a threshold value indicating the boundary of the application range of both correction methods, it is determined whether to apply the interpolation method or the luminance adjustment method. In the example of FIG. 5, the expressions “narrow”, “standard”, and “wide” that are easy to understand intuitively are described.
Is slid along the bar, the threshold is changed to a value corresponding to the position of the arrow symbol “▲” after the slide.

Further, even if the repair method applied to the repair of a defective portion is the same, as the degree of repair of the defective portion is reduced, the repair accuracy for the defective portion is reduced, but the probability of failure in repair (for each defective portion) Generally, the probability of having to readjust the defect correction parameter in units of parts) also decreases. For this reason, the operator must use the keyboard 4
By operating the mouse 4 or the mouse, the “degree of correction of the defective portion” is designated in accordance with, for example, a desired correction accuracy for the correction of the defective portion or an allowable range of the probability of the failure of the correction.

As an example, FIG. 5 shows an example in which a bar for designating the degree of correction is scaled to enable the degree of correction to be changed in a stepwise manner.
By sliding along the bar, the degree of correction can be specified. Alternatively, the degree of correction may be specified by a numerical value. In the example of FIG. 5, the expressions “weak” and “strong” that are easily perceived in a sense are described, but actually, when the arrow symbol “▲” is slid along the bar, the regulation that defines the degree of correction is defined. The value (in the present embodiment, a value within the numerical range of 0 to 1) is changed and set to a value corresponding to the position of the arrow symbol “▲” after sliding.

It is desirable that all the defective portions recognized by the IR data are originally corrected. For example, when it is desired that all the defective portions be corrected, the operator operates the keyboard 44 or the mouse, and "All detection" is selected as the "detection criterion of the defective portion". In this case, IR
All the defective parts recognized by the data are detected as the defective parts to be corrected.

In the case where a single image represented by the image data has a large number of defective portions, it may take a long time if all the defective portions are corrected.
For this reason, for example, when the processing speed is emphasized to some extent, the operator operates the keyboard 44 or the mouse to select “designation of detection criterion” as the “detection criterion of the defective portion” and to set the target of the image processing apparatus 14. The “criterion for detecting a defective portion to be corrected” is designated according to the processing speed or the like.

As an example, FIG. 5 shows an example in which a white bar for designating a detection criterion is scaled so that the range of a defective portion to be detected can be changed stepwise. By changing the length and position of the black bar shown therein, the detection criterion can be specified. Alternatively, the detection criterion may be designated by a numerical value.
FIG. 5 shows an example in which, based on a change in the amount of IR light, a defective portion excluding a defect portion having a minimum to relatively low value of the change in the amount of IR light is detected as a correction target.

In the example of FIG. 5, the expressions "small" and "large" that are easily perceived are described. However, when at least one of the length and the position of the black bar is changed, the correction is performed. The reference range of the variation of the transmitted light amount of the IR light at the portion corresponding to the defective portion on the photographic film (the upper limit and the lower limit of the variation: the “fluctuation amount of the light amount” Is set to a value corresponding to the position of both ends of the black bar after at least one of the length and the position is changed. When “detection criterion designation” is set as the “defect part detection criterion”, a defect part that matches the above “correction target defect part detection criterion” is detected as a correction target.

When the setting of the defect correction parameter by the operator is completed as described above and the completion of the setting is notified (for example, the button displayed as “OK” on the defect correction parameter setting screen shown in FIG. 5 is pressed) When the button is clicked), the determination at step 106 is affirmed, and the routine proceeds to step 108, where the set values of the defect correction parameters stored in the storage means are updated and stored by the set values by the operator.

In the next step 110, "whether or not to perform defective part correction" is set by setting the above-mentioned defect correction parameters.
Is changed from “execute” to “not execute” (or vice versa). In the present embodiment, the film scanner 12 is used only when a defective portion of an image is corrected.
Performs IR reading. The scanner control unit 33 of the film scanner 12 has IR reading control information (as an initial value) indicating whether or not to perform IR reading when reading an image recorded on the photographic film 26 (in this embodiment, only during fine scanning). The content corresponding to the default value of “whether or not to perform defective part correction” is stored in a storage means such as a ROM, and IR reading is performed by referring to IR reading control information stored in the storage means. It is determined whether or not to perform.

Therefore, if the determination in step 110 is affirmed, the process proceeds to step 112, where the film scanner 12 is notified that the IR reading has changed from execution to non-execution (or vice versa). Then, the defect correction parameter setting processing ends. As a result, the scanner control unit 33 of the film scanner 12 rewrites the contents of the IR reading control information stored in the storage unit. If the determination in step 110 is negative, the defect correction parameter setting processing ends without performing any processing.

Next, the image reading control process will be described with reference to the flowchart of FIG. This image reading control process is executed by the scanner control unit 33 of the film scanner 12 when an image reading instruction is given from the image processing device 14.

In the image reading control process, as described below, each image recorded on the photographic film 26 is pre-scanned (read at a relatively low resolution) and then fine-scanned (a relatively high resolution). In the embodiment using an area sensor (area CCD 30) as a reading sensor as in the present embodiment, switching of the reading resolution (obtaining image data of different resolution in each reading) is not performed. For example, at the time of pre-scanning, reading is performed at the same high resolution as at the time of fine scanning, and post-processing such as pixel thinning or pixel integration is performed on the obtained image data. Multiple times, and at the time of each reading, the pixel interval is controlled by an actuator such as a piezo element. Only area sensor distance corresponding to an integral fraction can be achieved by moving.

In step 130, the film carrier 2
4, the photographic film 26 is transported in a predetermined direction, and the film image recorded at the head of the photographic film 26 is controlled to be positioned at the reading position (the position where the center of the screen of the film image coincides with the optical axis L). . Next Step 1
After 32, a prescan is performed on the film image positioned at the reading position.

That is, in step 132, the R light, the G light
The turret 23 is driven to rotate so that the filter 23 (any of the filters 23C, 23M, and 23Y) that transmits only one of the light and the B light is positioned on the optical axis L. In the next step 134, the charge accumulation time of the area CCD 30 corresponding to the reading condition at the time of the pre-scan is determined by the CCD driver 31.
And the aperture 21 is moved to a position corresponding to the reading condition at the time of the pre-scan.
The film image positioned at the reading position is read in a wavelength range (R, G, or B) corresponding to the filter 23 positioned on the optical axis L.

In this reading, R light, G light or B light is applied to the film image positioned at the reading position, and the light transmitted through each part on the film image is transmitted to the area CCD.
This is achieved by the photoelectric conversion by 30 and accumulation as electric charge. The result of reading by the area CCD 30 (analog signal indicating the amount of accumulated charge) is output to the A / D converter 3
2, the image data is input to the image processing apparatus 14 as any one of R, G, and B prescan image data.

In step 136, it is determined whether or not reading (pre-scan) has been completed for each of R, G, and B with respect to the film image positioned at the reading position. If the determination is negative, the process returns to step 132, and steps 132 to 136 are repeated until the determination in step 136 is affirmative. As a result, reading (pre-scan) of R, G, and B is sequentially performed on the film image positioned at the reading position.

If the determination in step 136 is affirmative, the flow shifts to step 138 to determine whether or not the pre-scan has been completed for all the film images recorded on the photographic film 26. If the determination is negative, the process returns to step 130 to position the next film image at the reading position, and repeats the above-described prescan (from step 132). When prescanning of all film images is completed, the determination in step 138 is affirmed, and step 140 is performed.
Then, the process waits until the image processing apparatus 14 completes the calculation of the reading conditions at the time of the fine scan.

The reading conditions at the time of fine scanning are calculated by the image processing device 14 for each film image, and when the calculated reading conditions are notified from the image processing device 14 (the processing in the image processing device 14 will be described later). ), The determination in step 140 is affirmed, and the process proceeds to step 142 in which the photographic film 26 is transported by the film carrier 24 (for example, transported in a direction opposite to the pre-scanning direction), and the film image recorded on the photographic film 26 is read. It is controlled to be positioned at the position.

From the next step 144, the fine scan is performed on the film image positioned at the reading position. That is, in step 144, the filters 23C,
The turret 23 is driven to rotate so that one of 23M and 23Y is located on the optical axis L.

In the next step 146, the image processing apparatus 1
4, the reading conditions corresponding to the film image positioned at the reading position are fetched from among the reading conditions at the time of the fine scan notified from 4, and the charge accumulation time of the area CCD 30 corresponding to the fetched reading conditions is set to the CCD driver 31; After the diaphragm 21 is moved to the position corresponding to the reading condition, the area CCD 30 transfers the film image positioned at the reading position to the wavelength region (R or G or R) corresponding to the filter 23 located on the optical axis L. Read about B). The result of reading by the area CCD 30 is input to the image processing device 14 via the A / D converter 32 as fine scan image data of any of R, G, and B.

In step 148, it is determined whether reading (fine scan) has been completed for each of R, G, and B with respect to the film image positioned at the reading position. If the determination is negative, the process returns to step 144,
Until the determination in step 148 is affirmed, step 144 is performed.
Step 148 is repeated. As a result, reading (fine scan) for R, G, and B is sequentially performed on the film image positioned at the reading position.

If the determination in step 148 is affirmative, the flow shifts to step 150 to refer to the IR read control information stored in the storage means to read the IR of the film image positioned at the reading position. It is determined whether or not to perform. When the defective portion of the image is corrected (when “execute” is set as “whether or not to perform the defective portion correction”), the determination is affirmed and the process proceeds to step 152, where only the IR light is transmitted. The turret 23 is driven to rotate so that the filter 23IR is positioned on the optical axis L.

At step 154, a predetermined charge accumulation time is set in the CCD driver 31, and after the diaphragm 21 is moved to a predetermined position, the area CCD 30 reads IR of the film image positioned at the reading position. I do. The result of reading by the area CCD 30 is input to the image processing device 14 via the A / D converter 32 as IR data.

When the determination in step 150 is denied (when “do not execute” is set as “whether or not to perform defective part correction”), the above-described step 15 is performed.
Steps 2 and 154 are not performed. Therefore, the time required to read each film image can be reduced.

In the next step 156, photographic film 2
Then, it is determined whether or not the fine scan has been completed for all the film images recorded in No. 6. If the determination is negative, the process returns to step 142 to position the next film image at the reading position, and repeats the above-described fine scan (steps 144 to 154). When the fine scan of all film images is completed, the determination in step 156 is affirmed, and the image reading control process ends.

Next, the processing executed by the image processing device 14 when the above-described pre-scan and fine scan are sequentially performed by the film scanner 12 will be described. The R, G, and B image data output from the film scanner 14 as a result of the pre-scan is performed.
After being corrected by the scanner correction unit 36 of FIG.

Each time the R, G, B image data of a single film image is input, the control unit 42 first responds to the input R, G, B image data based on the input R, G, B image data. At the time of the fine scan for the film image to be performed, an appropriate reading condition is determined so that the accumulated charge amount is increased as much as possible within a range where the accumulated charge is not saturated in each cell of the area CCD 30.

Further, the control unit 42 controls the input R, G, B
Setup operation for automatically determining processing conditions of various image processing for high-resolution image data (fine scan image data) obtained by fine scan on a film image corresponding to the image data based on the image data of And notifies the image processor 40 of the processing conditions determined by the setup calculation.

Further, the fine scan of the film image is performed by the film scanner 12 so that the relatively high resolution R, G,
B image data (and IR data)
After being corrected by the scanner correction unit 36, the data is input to the control unit 42 and the image processor 40, respectively.

In the control section 42, the image processor 40
Prior to the execution of various image processing in, a defective portion correction condition determination process is performed. Hereinafter, the defective part repair condition determination processing will be described with reference to the flowchart of FIG.

In step 170, "execute" is set as "whether or not to perform defect repair" by referring to the current setting value of "whether or not to perform defect repair" which is one of the defect repair parameters. It is determined whether or not the defective part is to be corrected based on whether or not the correction is made. Step 170 corresponds to the control by the control means.

If "do not execute" is set as "whether or not to perform defective part correction", the determination in step 170 is denied, and the routine proceeds to step 196, where the input R, G, B image is input. After displaying a positive image (positive image of the processing target image represented by the input image data) on the display 43 using the data, the process proceeds to step 198.
In this case, since the detection and correction of the defective portion are not performed, the processing speed of the image processing device 14 can be improved.

On the other hand, if “execute” is set as “whether or not to execute defective part correction”, step 17 is executed.
The determination of 0 is affirmed, and the routine proceeds to step 172. If “execute” is set as “whether or not to perform defective part correction”, as described above, the film image is also read by the film scanner 12 with respect to the IR. At 172, the R, G, B, and IR image data of the processing target image input to the control unit 42 is loaded into the RAM 48 or the like.

In step 174, the current set value of the "defective part detection reference" which is one of the defect correction parameters is fetched. In the next step 176, the R, G, B and IR image data fetched into the RAM 48 or the like are read. Based on R,
A defect detection process is performed to detect a defect in the image to be processed represented by the G and B image data. This defective portion detection processing is performed as follows in accordance with the current setting value of the “defective portion detection standard”.

The amount of transmitted light when the photographic film is irradiated with IR light is not affected by the transmission density of the image recorded on the photographic film (the IR light is not absorbed in the emulsion layer). As shown in the figure, normally, it is substantially constant irrespective of the position on the image, and lowers only at a portion where the photographic film has a scratch or foreign matter. Since the IR data represents the amount of transmitted IR light at each position on the image to be processed, based on the IR data, the amount of transmitted IR light at a location on the image to be processed that is free of scratches or foreign matter ( For example, the maximum value of the transmitted light amount) is set as the reference value. A portion where the amount of change (reduction amount) of the transmitted light amount with respect to the reference value is equal to or larger than a predetermined value (a value determined in consideration of a slight change in the transmitted light amount of IR light at a portion where no scratch or foreign matter is attached) is detected.

For example, when “all detections” is set as the “detection criterion of a defective portion”, the change amount (decrease amount) of the transmitted light amount with respect to the reference value is a predetermined value (there is no scratch or foreign matter). All of the locations (values determined in consideration of slight variations in the amount of transmitted IR light at the locations) or more are detected as defective portions to be corrected. Also, when the “detection reference designation” is set as the “detection reference for defective portion”, the variation (decrease amount) of the transmitted light amount with respect to the reference value falls within the range that matches the “detection reference for defective portion to be corrected”. Are detected as defective portions to be corrected.

In step 176, information (for example, the position, size, shape, and the like of the defective portion) for identifying each detected defective portion to be corrected and information such as the amount of decrease in the amount of transmitted IR light are stored in the RAM 48 or the like. Remember. In step 176, the film scanner 12 measures the amount of transmitted IR light of the image.
The detecting means according to the present invention corresponds to the detecting means according to the present invention (specifically, the detecting means according to claim 7). It corresponds to the control by the control means.

In step 178, it is determined whether or not there is a defective part detected as a defective part to be corrected in the above-described defective part detecting process. If the determination is negative, the process proceeds to step 196 without correcting the defective portion. Accordingly, for example, when the operator sets the “criterion for detecting a defective portion to be corrected” so as to narrow the defective portion detected as a correction target for the purpose of suppressing a reduction in processing speed, the “detection standard ], The probability that there is no defective part that matches the "detection criteria" increases, and if there is no defective part that matches the "detection criteria", the defective part is not corrected.
A decrease in the processing speed of the image processing device 14 is suppressed.

If there is a defect detected as a defect to be corrected, the determination in step 178 is affirmed, and the routine goes to step 180, where one of the defect correction parameters, "defect correction" Import the current setting value of "degree". Then, in the next step 182, the current setting value of the “repair method applied to defect portion correction” which is one of the defect correction parameters is fetched, and a correction method applied to the defect portion correction is performed based on the fetched setting value. "Only interpolation method"
It is determined whether “only the brightness adjustment method” or “both are applied”.

If the correction method applied to the defective portion correction is "only the interpolation method", the process proceeds from step 182 to step 184, where the interpolation method is applied to all the defective portions to be corrected. Fix it. That is, the luminance and color of the defective portion to be corrected are newly calculated by interpolation from the luminance and color of the area around the defective portion, and the value of each pixel in the defective portion (R, G, B Density values or values representing hue, lightness, and saturation) may be D1
The original value of each pixel is D2, and the current set value of the "degree of defect correction" taken in step 180 is α, and the corrected value D3 of each pixel in the defective portion is obtained according to equation (2). D3 = α · D1 + (1−α) D2 (2) The above processing is performed on all the defective portions to be corrected, and the R, G, and B image data of the image to be processed is corrected, thereby obtaining a defective portion. Make corrections.

In this case, since all the defective portions to be corrected are corrected by the interpolation method, the processing takes time and the probability of the correction failure is slightly high. Irrespective of whether the defect is caused by a scratch on the emulsion surface or a foreign matter on the photographic film, the defect to be corrected can be corrected with high accuracy. In addition, since the defective part is corrected at the correction degree according to the setting value of the “defect part correction degree”, the correction of the defective part is performed so that the correction accuracy for the correction of the defective part and the probability of the correction failure fall within an allowable range. Will be done.

Step 184 corresponds to the correcting means according to the present invention (specifically, the correcting means according to claim 7). Is corresponding to the control by the control means.

If the correction method applied to the defective portion correction is “only the luminance adjustment method”, step 18
Step 2 is followed by step 186, in which the luminance adjustment method is applied to all the defect portions to be corrected, and the luminance correction amount of the defect portion is calculated based on the variation in the amount of transmitted IR light in the defect portion. L1 is the luminance value of each pixel in the defective portion corrected according to the luminance correction amount, L2 is the original luminance value of each pixel, α is the current setting value of the “degree of defect correction”, and The corrected luminance value L3 is obtained according to equation (3). L3 = α · L1 + (1−α) L2 (3) The above processing is performed on all the defective portions to be corrected, and the R, G, and B image data of the image to be processed is corrected, so that the defective portion is obtained. Make corrections.

In this case, since all the defective portions to be corrected are corrected by the brightness adjustment method, the correction accuracy is not sufficient for a defective portion caused by a scratch on the emulsion surface or a foreign matter on the photographic film. In addition, since the correction process itself is completed in a short time and an unnatural image is unlikely to be generated even when the correction fails, it is unlikely that complicated work such as parameter adjustment is required. It is possible to avoid a significant decrease in speed and a burden on the operator. In addition, since the defective part is corrected at the correction degree according to the setting value of the “defect part correction degree”, the correction of the defective part is performed so that the correction accuracy for the correction of the defective part and the probability of the correction failure fall within an allowable range. Will be done.

Step 186 also corresponds to the correcting means according to the present invention (specifically, the correcting means according to claim 7). Is corresponding to the control by the control means.

If the repair method applied to the repair of the defective portion is "apply both", the process proceeds from step 182 to step 188, and the repair method is applied to each of the defective portions to be repaired by applying the interpolation method. Or a predetermined feature value for determining whether the correction is performed by applying the brightness adjustment method. In the present embodiment, as an example of the predetermined feature amount,
A feature quantity representing a correlation between changes in the transmitted light amounts of the R light, the G light, and the B light in the defect portion is used.

For example, when the back surface of the photographic film is damaged, as shown in FIG. 8A, the transmitted light amounts of the R, G, and B light are substantially the same at the damaged portion. , The change in the transmitted light amount of the R light, the G light, and the B light is highly correlated. On the other hand, when the emulsion surface of the photographic film is damaged, as shown in FIG. 8B, for example, the change in the transmitted light amount of R light, G light, and B light at the damaged portion is not constant. , R light, G light, and B light have a low correlation with the change in the amount of transmitted light (the same applies to a case where a foreign matter is attached to a photographic film).

FIG. 8 shows a typical case, and there are many cases in which it is not clear which correction method should be applied, such as a case where both sides of a photographic film are actually scratched. However, it is preferable to apply the luminance adjustment method if information on the color of the subject remains in the R, G, and B image data, and to apply the interpolation method if the information does not remain. Is desirable,
Based on a characteristic amount (for example, a value obtained by integrating the difference between the differential values of the changes in the transmitted light amounts of the R light, G light, and B light) indicating the correlation between the changes in the transmitted light amounts of the R light, G light, and B light in the defective portion. The corrective method to be applied can be properly determined for each defective portion.

In step 188, for each of the defective portions to be corrected, the above-described predetermined feature values are calculated, and then the set values of the applicable ranges of both the repair methods (representing the boundaries of the applicable ranges of both the repair methods). Threshold value), and by comparing a predetermined feature amount of each defective portion with the set value, correction is performed by applying an interpolation method or correcting by applying a brightness adjustment method for each defective portion. Is determined.

Specifically, if the predetermined feature value is equal to or less than the set value of the applicable range (if the correlation between the changes in the transmitted light amounts of the R, G, and B lights is high), the correction method to be applied is A luminance adjustment method is selected, and an interpolation method is selected as a correction method to be applied if the predetermined feature amount is equal to or larger than the set value or larger than the set value (if the correlation is low). It should be noted that the above step 188 is the same as step 1 described above.
Together with 82, control by the control means according to claim 2 is supported.

Then, in the next step 190, correction is performed by applying the interpolation method to the defective part determined to be corrected by applying the interpolation method in the same manner as in the previous step 184. Further, in the next step 192, correction is performed by applying the luminance adjustment method to the defective portion determined to be corrected by applying the luminance adjustment method in the same manner as in step 186.
Steps 190 and 192 also correspond to the correcting means according to the present invention (specifically, the correcting means according to claim 7).

In this case, the correction method is selected in accordance with the application range set by the operator, and even when the correction accuracy for the defective portion and the processing speed are regarded as equally important, the correction accuracy is selected. The defect portions to be repaired are corrected so as to satisfy both the required level for processing and the required level for processing speed.

When the correction of the defective portion is completed, step 194
To R, R,
After displaying the image (positive image) represented by the image data based on the G and B image data, the process proceeds to step 198. Step 194, together with step 196, corresponds to the display control means. Step 1
At 98, a message requesting the operator to execute the test on the image displayed on the display 43 is displayed on the display 43, and the test result input by the operator via the keyboard 44 or the like is determined.

When the message is displayed, the operator verifies the image displayed on the display 43,
In consideration of the target processing speed of the image processing system 10 and the like, an image verification process for determining whether or not the current setting value of the defect correction parameter is appropriate is performed. When it is determined that the current setting value of the defect correction parameter is not appropriate, information for instructing resetting of the defect correction parameter is input via the keyboard 44 or the like.

In this case, the defect correction parameter setting process (FIG. 4) is executed again in step 200, and a new set value is designated by the operator for each item of the defect correction parameters determined to be inappropriate by the operator. (Correction work by the operator), and the set value is changed according to the instruction of the operator. As a result, even if the initially set defect correction parameters are inappropriate, the defect correction parameters are optimized according to various factors. After performing the processing of step 200, step 170
The process from step 170 onward is repeated again according to the defect correction parameter changed and set.

The defect correction parameter setting screen shown in FIG. 4 is used for a large number of images (for example, all images recorded on one photographic film, all images processed by the image processing system 10 and the like). This is a screen for setting commonly used defect correction parameters.
At 0, it is also possible to correct the defect correction parameters for each image.

In connection with the above, for example, if “not executed” is set as “whether or not to perform defective part correction”, but the defective part of the image displayed on the display 43 is conspicuous, etc. It may also be possible to change “whether or not to perform defective part correction” from “not performed” to “performed” only for an image. In this case, IR reading of the corresponding image may be performed (or IR reading may be performed at the time of fine scan even when “not performed” is set as “whether or not to perform defective part correction”). Can obtain IR data.

On the other hand, in the image verification process, if the verification result indicating that the current setting value of the defect correction parameter is appropriate is input via the keyboard 44, step 1 is executed.
The process proceeds from step 98 to step 202, where parameters relating to correction of the defective portion of the image to be processed (correction parameters: corresponding to “parameters for correcting the defective portion” according to claim 1) are those of the defective portion to be corrected. Presence / absence, information for identifying each defective part to be repaired (for example,
Shape, size, etc.), information indicating a repair method for each defective portion, step 184 or step 186 or step 1
Parameters used for correcting each defective portion calculated in steps 90 and 192 (for example, the degree of correction for the defective portion, the value of each pixel in the defective portion calculated by interpolation in the interpolation method, and the change in the amount of transmitted IR light in the brightness adjustment method) The luminance correction amount of the defective portion calculated from the amount is stored in the RAM 48 or the like.

In the next step 204, R, G, B image data (and IR data) from the film scanner 12 are read.
It is determined whether or not the above-described processing has been performed on all the input film images. If the determination is negative, the process returns to step 170, and the processing from step 170 onward is repeated with an unprocessed film image as an image to be processed. If the determination in step 204 is affirmative, the correction parameters stored for each film image in step 202 are notified to the image processor 40, and the defective portion correction condition determination processing ends.

Upon completion of the above-described defective part repair condition determination processing, the image processor 40 performs various image processing on the input image data under the processing conditions determined by the setup calculation in the control unit 42, and
The control unit 42 refers to the correction parameter notified from the control unit 42 by performing the defective part correction condition determination processing.
Then, when there is a defective portion to be corrected, the defective portion to be corrected is subjected to a defect portion correction process of applying a correction method specified by the correction parameter and correcting the defective portion at a correction degree specified by the correction parameter. . Thus, the image processor 40 also corresponds to the correcting means of the present invention. As a result, the defective portion selected as the correction target is erased from the image recorded on the printing paper 68 by exposure.

In the above description, as an example of an image reading apparatus for reading an image recorded on a photographic film, a configuration in which an image is read by an area sensor (area CCD 30) in which photoelectric conversion cells are arranged in a matrix has been described. The present invention is not limited to this, and an image may be read by a line sensor in which photoelectric conversion cells are arranged in a line. In the above description, the configuration in which an image is read by photoelectrically converting light transmitted through a photographic film has been described. However, the configuration is not limited to this, and the configuration in which an image is read by photoelectrically converting light reflected by a photographic film is described. May be adopted.

Further, in the above description, when “detection criteria of defective part” is used as an item for specifying a defective part to be corrected, and “designation of detection criteria” is set as “detection criteria of defective part”, Only the portion within the range in which the change amount (reduction amount) of the transmitted light amount with respect to the reference value matches the “correction target defect portion detection criterion” was detected as the correction target defect portion.
The present invention is not limited to this, and as an item for specifying a defective portion to be repaired, a "defect portion selection criterion"
In the defective part detection process, a defective part in which the amount of change (decrease) in the amount of transmitted light with respect to the reference value is equal to or more than a predetermined value is set in the same manner as in the case where "all detection" is set as the "defect part detection reference". All the defective parts may be detected, and only the defective parts that match the “defect part selection criteria” may be selected from the detected defective parts as the defect parts to be corrected.

As the "selection criterion", the variation of the light amount may be used in the same manner as the "detection criterion". For example, the upper limit of the number of defective portions to be repaired is used. In the ascending order, the number of defective portions within the set upper limit may be selected as the defective portion to be corrected. In this case, it is possible to prevent the processing time required for correcting a defective portion from being extremely increased even for an image having a large number of defective portions. Further, the size of the defective portion or the like may be used as the “selection criterion”.

In the above description, the interpolation method and the brightness adjustment method are described as an example of a correction method applicable to the correction of a defective portion. However, the present invention is not limited to this. For example, a low-pass filter is applied to the defective portion. In this case, a correction method for blurring the defective portion or a correction method for inserting a light diffusion plate in the optical path between the light source 20 of the film scanner 12 and the photographic film 26 to make the defective portion inconspicuous may be used.

Further, in the above, R, G,
B is read, and R, G,
Although an example of reading B and IR has been described, the present invention is not limited to this. IR reading may be performed only at the time of pre-scanning, or may be performed at the time of pre-scanning and fine scanning.

In the above description, the case where a defective portion caused by a scratch or a foreign matter on a photographic film is corrected has been described, but the present invention is not limited to this. For example, CCDs provided in film scanners, digital cameras, etc.
If there is a defective pixel in the photoelectric conversion element such as
A defective portion similar to a defective portion caused by a scratch or a foreign matter occurs in an image or an image represented by image data obtained by imaging a subject. The present invention is applied to the correction of the defective portion caused by the pixel defect, and for example, “whether or not to perform the defective portion correction”, “the correction method applied to the defective portion correction”, “degree of correction of the defective portion”
The operator can set defect correction parameters including items such as “defect portion selection criteria”, and the defect portion is corrected in accordance with the set value of the defect correction parameter. It is also possible to optimize the processing conditions in the correction.

As for a defective portion caused by a pixel defect, for example, it is not possible to detect a defective portion caused by a defective pixel during device manufacturing.
For example, at the time of manufacturing an image processing apparatus, information for specifying a defective pixel of a photoelectric conversion element found by inspection is stored in a ROM or the like built in the apparatus, and the information is detected by reading the information stored in the ROM or the like. be able to. Also, for example, a configuration in which a single photoelectric conversion element performs photoelectric conversion (reading) of visible light and IR light, respectively (for example, a configuration in which a turret is rotated to sequentially read light in each wavelength range).
With the film scanner described above, the detection of a defective portion of an image caused by a pixel defect of the photoelectric conversion element can be performed by comparing a read result of visible light with a read result of IR light.

[0155]

As described above, according to the first and ninth aspects of the present invention, a detecting means for detecting a defective portion of an image represented by acquired image information and a parameter for correcting the defective portion are set. Correction means for correcting the defective portion with respect to the image information is provided. According to the instruction regarding the correction of the defective portion input via the input means, detection of the defective portion by the detection means and parameter setting by the correction means are provided. Since at least one of the setting and the correction of the defective portion is controlled, there is an excellent effect that the processing conditions for the correction of the defective portion of the image can be optimized.

According to a second aspect of the present invention, in the first aspect of the present invention, as the instruction regarding the repair of the defective portion, selection of a repair method to be applied from a plurality of types of repair methods for the defective portion or a plurality of types of repair methods is provided. The application range of each of the repair methods is specified, and the correction means is controlled such that the correction method instructed to be selected is applied to correct the defective portion, or the application range in which a plurality of types of correction methods are specified. In each of the above, the correction means is controlled so that the defective portion is corrected by being applied.
In addition to the above effects, there is an effect that the applicable range of a repair method or a plurality of types of repair methods to be applied to the repair of a defective portion can be optimized.

According to a third aspect of the present invention, in the first aspect of the present invention, whether or not the defective portion is to be repaired is instructed as an instruction relating to the repair of the defective portion, and it is instructed to perform the repair of the defective portion. In such a case, control is performed so that the detection of the defective part by the detection means and the correction of the defective part by the correction means are performed. In addition to the above-described effects, it is possible to optimize whether or not the defective part is corrected. Has an effect.

According to a fourth aspect of the present invention, in the first aspect of the present invention, the degree of correction for the defective portion is instructed as an instruction relating to the correction of the defective portion, and the defective portion is corrected at the instructed degree of correction. Control the corrective means,
In addition to the effects described above, there is an effect that the degree of correction of a defective portion can be optimized.

According to a fifth aspect of the present invention, in the first aspect of the present invention, a detection reference or a selection criterion of a defective portion to be corrected is instructed as an instruction relating to the correction of the defective portion, and the correction is performed based on the specified detection criterion. Either control the detecting means so that only the target defective part is detected, or selectively correct only the defective part to be corrected by the specified selection criterion among the detected defective parts. Since the correction means is controlled so as to be performed, in addition to the above-described effects, there is an effect that the criterion for selecting a defective portion to be corrected can be optimized.

According to a seventh aspect of the present invention, in the first aspect of the present invention, by irradiating the recording medium with invisible light, a flaw or foreign matter in an image recording area on the recording medium is attached as a defective portion of the image. Is detected and the information of the area corresponding to the defective part of the image is obtained by interpolation from the information of the area around the defective part on the image, or corrected so that the luminance of the defective part changes By doing so, the defective portion is corrected for the image information. In addition to the above-described effects, the defective portion caused by a scratch or a foreign substance on the recording medium can be reliably detected, and the defective portion can be reliably detected. This has the effect that it can be corrected to

According to an eighth aspect of the present invention, in the first aspect of the present invention, at least one of the image represented by the acquired image information and the image represented by the image information in which the defect has been corrected by the correcting means is displayed on the display means. Since it was displayed,
In addition to the above effects, there is an effect that the operator can more easily determine and input an instruction regarding the correction of the defective portion.

According to a tenth aspect of the present invention, there is provided a first step of requesting the input of an instruction relating to the correction of a defective portion, and the detection of the defective portion by the detection means in accordance with the instruction relating to the correction of the defective portion input via the input means. Since the program for causing the computer to execute the process including the second step of controlling at least one of the setting of the parameter by the correction means and the correction of the defective portion is recorded on the recording medium, There is an excellent effect that processing conditions can be optimized.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of an image processing system according to an embodiment.

FIG. 2 is a perspective view illustrating a schematic configuration of a film scanner.

FIG. 3A is a conceptual diagram showing light transmission in a portion of a photographic film without scratches and foreign matter, a portion with a scratch, and a portion with foreign matter, and FIG. (C) is a conceptual diagram showing light transmission when the back surface is scratched and (C) shows the light transmission when the emulsion surface of the photographic film is scratched.

FIG. 4 is a flowchart illustrating the content of a defect correction parameter setting process.

FIG. 5 is an image diagram showing an example of a defect correction parameter setting screen.

FIG. 6 is a flowchart illustrating the content of an image reading control process.

FIG. 7 is a flowchart showing the content of a defect portion correction condition determination process.

FIG. 8A shows a case where the back surface is scratched.
(B) shows R light, G light, and B light when the emulsion surface is scratched.
FIG. 4 is a diagram illustrating an example of a change in transmitted light amount of light and IR light.

[Explanation of symbols]

 12 Film Scanner 14 Image Processing Device 20 Light Source 23 Filter Unit 26 Photo Film 30 Area CCD 40 Image Processor 42 Control Unit 44 Keyboard 72 Information Storage Medium

Claims (10)

[Claims] 1. An image processing apparatus for acquiring image information, performing predetermined processing on the acquired image information, and outputting the processed image information, wherein a detection unit detects a defective portion of an image represented by the acquired image information. Setting parameters for correcting the defective portion and correcting the defective portion with respect to the image information; inputting means for inputting an instruction regarding correction of the defective portion; and Control means for controlling at least one of detection of a defective part by the detection means, setting of a parameter by the correction means, and correction of the defective part in accordance with an instruction on correction of the defective part inputted by the operator. Image processing apparatus. 2. An instruction for correcting the defective portion,
Selection of a repair method to be applied from the plurality of repair methods for the defective portion, or an application range of each of the plurality of repair methods is instructed via input means, and the control means includes: Controlling the correcting means so that the correction method indicated by the selection is applied to correct the defective portion, or a plurality of types of correction methods are applied within the application range specified through the input means. The image processing apparatus according to claim 1, wherein the correction unit is controlled so that each of the correction units is applied to correct the defective portion. 3. An instruction for correcting the defective portion,
Whether or not to repair the defective part is instructed via the input means, and the control means, when instructed to perform the repair of the defective part, detects the defective part by the detecting means and performs the correcting means. 2. The image processing apparatus according to claim 1, wherein control is performed such that the defective portion is corrected by the following. 4. An instruction for correcting the defective portion,
The degree of correction for the defective part is instructed via the input means, and the control means controls the correction means such that the defective part is corrected with the degree of correction instructed via the input means. The image processing apparatus according to claim 1. 5. An instruction for repairing the defective portion,
A detection criterion or a selection criterion of a defective portion to be corrected is specified via the input means, and the control means detects only a defective portion to be corrected based on the detection criterion specified via the input means. Or selectively repairing only the defective portions which are to be corrected by the selection criterion specified through the input device among the defective portions detected by the detecting device. 2. The method according to claim 1, wherein the control unit controls the correction unit so that the correction is performed.
An image processing apparatus as described in the above. 6. As the image information, image information representing a physical quantity related to the amount of light transmitted or reflected by an image recorded on a recording medium is acquired, and a detection criterion or selection of a defective portion to be corrected is obtained. As a reference, a threshold value of a light amount variation amount of light transmitted or reflected at a portion corresponding to a defective portion on the recording medium due to a scratch or a foreign substance attached to the portion is specified via the input unit. The image processing apparatus according to claim 5, wherein 7. Obtaining image information representing an image recorded on a recording medium as the image information, wherein the detecting unit irradiates the recording medium on which the image represented by the image information is recorded with invisible light, Detecting a portion with a scratch or foreign matter in the image recording area on the recording medium as a defective portion of the image represented by the image information, the correcting unit converts information of an area corresponding to the defective portion of the image on the image. The correction of the defective portion is performed on the image information by obtaining from the information of the area existing around the defective portion by interpolation, or by correcting the luminance of the defective portion so as to change. The image processing device according to claim 1. 8. Display means for displaying an image, at least one of an image represented by the acquired image information and an image represented by image information in which a defective portion has been corrected by the correcting means. The image processing apparatus according to claim 1, further comprising: a display control unit configured to display the image data. 9. Detecting means for acquiring image information, performing predetermined processing on the acquired image information, outputting the processed image information, and detecting a defective portion of an image represented by the acquired image information; Correction means for setting a parameter for correcting the defect, and correcting the defective portion with respect to the image information; and a control method of the image processing device for controlling the image processing device comprising: And controlling at least one of the detection of the defective portion by the detecting device, the setting of the parameter by the correcting device, and the correction of the defective portion in accordance with an instruction regarding the correction of the defective portion input through the input device. A method for controlling an image processing apparatus, comprising: 10. Detecting means for acquiring image information, performing predetermined processing on the acquired image information, outputting the processed image information, and detecting a defective portion of an image represented by the acquired image information; A correction means for setting a parameter for correcting the defect and correcting the defective portion with respect to the image information; and a first step for requesting an input of an instruction regarding the correction of the defective portion, A process including a second step of controlling at least one of detection of a defective portion by the detecting device, setting of a parameter by the correcting device, and correction of the defective portion in accordance with an instruction regarding correction of a defective portion input through the device. Recording medium for storing a program for causing a computer to execute the program.