JP2019125832A - Image processing apparatus, image processing method, and program - Google Patents

Abstract

To provide an image processing apparatus and the like capable of performing image processing in accordance with the user's intention.SOLUTION: An image processing apparatus 430 mounted on an image forming apparatus includes a feature amount extraction unit 32 that extracts feature amounts of image data, a document type determination unit 33 that determines the document type from the feature amount, a parameter setting unit 34 that sets image processing parameters by the user, a history storage unit 352 that stores a history of user settings, and an image processing unit 31 that performs image processing on the basis of the document type and the user settings. The document type determination unit 33 changes the determination criteria of the determination processing of the document type on the basis of the history of the user settings.SELECTED DRAWING: Figure 14

Description

  The present invention relates to an image processing apparatus and the like, and more particularly to an image processing apparatus and the like that performs image processing according to the type of a document based on input image data.

  Conventionally, in an image processing apparatus such as a digital multi-functional peripheral, it has become possible for each user to perform printing by setting printing conditions in accordance with usage and preference. Further, as a function of the image processing apparatus, one that performs printing by changing print settings according to the type of a document is also known.

  Although such a digital multi-functional peripheral is equipped with an original determination function that automatically determines the type (type) of an original, under the present circumstances, the print original and the print original (output from an image forming apparatus such as a printer) In the case where both are halftone dots, it was difficult to distinguish.

  Further, when processing a print original and a print original, appropriate processing may not be performed with the same image processing parameters. For example, the characteristics of reading by a scanner (image reading apparatus) are different between a print original and a print original, and color conversion aiming at the print original does not match the lightness or saturation of the print original, and color reproduction is different. It may be

  Therefore, as a conventional technique, for example, in an image reading apparatus having a function of automatically determining whether a document is a color document or a monochrome document, the determination criterion is updated based on the determination result of the document and the history information of the user setting. Patent Document 1 discloses that the determination result according to is switched.

  Further, as another technique, in an image processing apparatus having an image processing function, a system is disclosed in which a default value is updated from history information set by a user, and display of a screen is switched (see Patent Document 2). ).

JP, 2008-271166, A JP, 2011-166781, A

  However, in the technique of Patent Document 1 described above, only the automatic color selection function (ACS function) for determining whether the document is a color document or a monochrome document is considered. Since the image processing according to the reading characteristics is not supported, the image processing according to the user's intention according to the document can not be performed.

  If the user often selects the maximum value or the minimum value (or values in the vicinity) of the range that can be set by image adjustment when printing, a value that exceeds the settable range is set There is a possibility of trying. Therefore, as in Patent Document 2, changing the default value displayed to the user may not properly reflect the setting of the user. For example, when it is desired to change the setting beyond the range assumed by the user, there is a problem that it can not be dealt with only by changing the default value, and image processing according to the user's intention could not be performed.

  The present invention has been made in view of the above-described conventional problems, and an object of the present invention is to provide an image processing apparatus and the like capable of performing image processing in accordance with the user's intention.

  The present invention, in an image processing apparatus, includes a feature amount extraction unit for extracting a feature amount of image data, a document type determination unit that determines a document type from the feature amount, and a parameter setting unit for setting image processing parameters by a user. A history storage unit for storing a history of user settings; and an image processing unit for performing image processing based on the document type and the user settings, wherein the document type determination unit history of the user settings The present embodiment is characterized in that the determination criterion of the determination processing of the document type is changed based on the above.

  Further, according to the present invention, in the image processing apparatus, a parameter storage unit for storing image processing parameters, a parameter display unit for displaying the stored image processing parameters, a parameter setting unit for the user to set the image processing parameters, and A history storage unit for storing a history of settings, and an image processing unit for performing image processing based on the settings of the user, wherein the parameter display unit performs the image processing parameter based on the history of the settings of the user. Are switched and displayed.

  Further, according to the present invention, in the image processing apparatus, a feature amount extraction unit that extracts a feature amount of image data, a document type determination unit that determines a document type from the feature amount, and a parameter storage unit that stores image processing parameters. A parameter display unit for displaying the stored image processing parameters, a parameter setting unit for setting the image processing parameters by the user, a history storage unit for storing a history of the user settings, and the document type and the user settings The document type determination unit changes the determination criteria of the determination processing of the document type based on the history of the user setting, and the image processing is performed by the parameter display unit It is characterized in that the parameters are switched and displayed.

  Further, the present invention is an image processing method for performing image processing in an image processing apparatus, comprising the steps of: extracting a feature amount of image data; determining an original type from the feature amount; The method includes a setting step, a step of storing a history of setting of the user, and a step of performing image processing based on the document type and the setting of the user, and the document type is selected based on the history of the setting of the user. It is characterized in that the determination criteria of the determination process are changed.

  Further, the present invention is an image processing method for performing image processing in an image processing apparatus, comprising the steps of storing image processing parameters, displaying the stored image processing parameters, and setting user image processing parameters. , Storing the user's setting history, and performing image processing based on the user's setting, and switching and displaying the image processing parameter based on the user's setting history It is characterized by

  Further, the present invention is an image processing method for performing image processing in an image processing apparatus, comprising the steps of: extracting a feature amount of image data, determining an original type from the feature amount, and storing an image processing parameter A process of displaying stored image processing parameters, a process of setting image processing parameters by the user, a process of storing a history of setting of the user, and image processing based on the document type and the setting of the user And changing the determination criteria of the determination processing of the document type based on the history of the setting of the user, and switching and displaying the image processing parameter.

  Further, the present invention is a program for operating an image processing apparatus, wherein a computer has a function of extracting a feature of image data, a function of determining a document type from the feature, and an image processing parameter set by a user. The document type is executed based on the history of the user setting by executing the function to store, the history of setting of the user, and the function of performing image processing based on the document type and the setting of the user. The present invention is characterized in that the determination criteria of the determination process of (1) are changed.

  Further, the present invention is a program for operating an image processing apparatus, comprising a function of storing image processing parameters by a computer, a function of displaying the stored image processing parameters, and a function of setting image processing parameters by the user. Executing a function of storing a history of setting of the user and a function of performing image processing based on the setting of the user, and switching and displaying the image processing parameter based on the history of setting of the user It is characterized by

  Further, the present invention is a program for operating an image processing apparatus, comprising a function of extracting a feature of image data by a computer, a function of determining a document type from the feature, and a function of storing an image processing parameter. , The function of displaying the stored image processing parameters, the function of setting the image processing parameters by the user, the function of storing the history of the settings of the user, and performing the image processing based on the document type and the settings of the user The function is executed to change the determination criteria of the determination processing of the document type based on the history of the setting of the user, and the image processing parameter is switched and displayed.

  According to the image processing apparatus of the present invention, a feature quantity extraction unit that extracts feature quantities of image data, a document type determination unit that determines a document type from the feature quantities, and a parameter setting unit that the user sets image processing parameters And a history storage unit for storing a history of setting of the user, and an image processing unit for performing image processing based on the document type and the setting of the user, wherein the document type determination unit performs setting of the user By changing the determination criteria of the determination processing of the document type based on the history, it is possible to realize an image processing apparatus capable of performing image processing in accordance with the user's intention.

  Further, according to the image processing apparatus of the present invention, a parameter storage unit for storing image processing parameters, a parameter display unit for displaying the stored image processing parameters, a parameter setting unit for the user to set the image processing parameters, and a user And an image processing unit for performing image processing based on the setting of the user, the parameter display unit performing the image processing based on the history of the setting of the user By switching and displaying the parameters, an image processing apparatus capable of performing image processing in accordance with the user's intention can be realized.

  Further, according to the image processing apparatus of the present invention, a feature amount extraction unit for extracting a feature amount of image data, a document type determination unit that determines a document type from the feature amount, and a parameter storage unit for storing image processing parameters A parameter display unit for displaying the stored image processing parameters, a parameter setting unit for setting the image processing parameters by the user, a history storage unit for storing the history of the user settings, the document type and the user settings And an image processing unit that performs image processing based on the document type determination unit, changes the determination criteria of the determination processing of the document type based on the history of the setting of the user, and the parameter display unit By switching and displaying processing parameters, it is possible to realize an image processing apparatus capable of performing image processing in accordance with the user's intention.

  Further, according to the image processing method of the present invention, a process of extracting a feature of image data, a process of determining a document type from the feature, a process of setting an image processing parameter by a user, and setting of a user A process of storing a history, and a process of performing image processing based on the document type and the setting of the user, and changing the determination criteria of the determination process of the document type based on the history of the setting of the user Thus, image processing can be performed according to the user's intention.

  Further, according to the image processing method of the present invention, the steps of storing the image processing parameters, displaying the stored image processing parameters, setting the image processing parameters by the user, and storing the history of the user settings are stored. And image processing based on the setting of the user, and switching and displaying the image processing parameters based on the history of the setting of the user, an image according to the user's intention Processing can be performed.

  Further, according to the image processing method of the present invention, the step of extracting the feature amount of the image data, the step of determining the document type from the feature amount, the step of storing the image processing parameter, and the stored image processing parameter The method includes the steps of displaying, setting an image processing parameter, storing a history of setting of the user, and performing image processing based on the document type and the setting of the user, the user By changing the determination criteria of the determination process of the document type based on the history of setting, and switching and displaying the image processing parameter, it is possible to perform the image processing according to the user's intention.

  Further, according to the program of the present invention, in the image processing apparatus, the computer has a function of extracting a feature amount of image data, a function of determining a document type from the feature amount, and a function of setting an image processing parameter by a user. And a function of storing a history of setting of the user, and a function of performing image processing based on the document type and the setting of the user, and determining the document type based on the history of the user setting By changing the determination criteria of processing, it is possible to perform image processing in accordance with the user's intention.

  Further, according to the program of the present invention, in the image processing apparatus, the function of storing the image processing parameter by the computer, the function of displaying the stored image processing parameter, the function of the user setting the image processing parameter, and the user By executing a function of storing a history of setting of the function and a function of performing image processing based on the setting of the user, and switching and displaying the image processing parameter based on the history of setting of the user Image processing can be performed according to the user's intention.

  Further, according to the program of the present invention, in the image processing apparatus, the computer has a function of extracting a feature amount of image data, a function of determining a document type from the feature amount, and a function of storing image processing parameters. A function of displaying the stored image processing parameters, a function of the user setting the image processing parameters, a function of storing the user setting history, a function of performing image processing based on the document type and the user setting And change the determination criteria of the determination process of the document type based on the history of the setting of the user, and perform the image processing according to the user's intention by switching and displaying the image processing parameter. Can.

FIG. 1 is a block diagram showing a schematic configuration of an image forming apparatus on which an image processing apparatus according to a first embodiment is mounted. It is a block diagram which shows the characteristic structure of the said image processing apparatus. It is a block diagram which shows the basic composition of the said image processing apparatus. FIG. 6 is an explanatory view showing an example of changing the document type by a document type determination unit in the image processing apparatus. It is a flowchart which shows the processing process which determines the document classification based on the log of image adjustment by a user in the said image processing apparatus. It is a flowchart following FIG. It is a block diagram showing the characteristic composition of the image processing device concerning a 2nd embodiment. (A) to (d) are explanatory diagrams showing an example of changing a setting screen of parameters of image adjustment in the image processing apparatus. It is a flowchart which shows the processing process of changing a parameter setting range in the said image processing apparatus. It is a flowchart following FIG. (A) to (d) are explanatory views showing an example of changing a setting screen of image adjustment parameters in the image processing apparatus according to the third embodiment. It is a flowchart which shows the processing process of changing a parameter setting range in the said image processing apparatus. It is a flowchart following FIG. It is a block diagram showing the characteristic composition of the image processing device concerning a 4th embodiment. (A) to (d) are explanatory diagrams showing an example of changing the setting screen of the image adjustment parameter based on the history of setting change of the user in the image processing apparatus. 10 is a flowchart showing processing steps of changing the parameter setting range by determining the document type based on the history of image adjustment by the user in the image processing apparatus. It is a flowchart following FIG. It is a flowchart following FIG. 16, FIG.

First Embodiment
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is an example of an embodiment of the present invention, and is a block diagram showing a schematic configuration of an image forming apparatus on which an image processing apparatus according to the first embodiment of the present invention is mounted. FIG. 2 is a feature of the image processing apparatus FIG. 3 is a block diagram showing a basic configuration of the image processing apparatus, and FIG. 4 is an explanatory diagram showing an example of changing the document type by the document type determination unit in the image processing apparatus.

(Configuration of image forming apparatus)
The image forming apparatus 1 according to the first embodiment is a digital color multifunction peripheral provided with a copier mode (copy mode) for executing a copy function, and as shown in FIG. 10, an image input device 20, an image processing device 30, an image output device 40, a storage device 50, a software processing unit 60, a communication unit 70 for transmitting and receiving, a data input terminal 80 communicably connected to the image forming apparatus 1 The control unit 90 is configured.

  Here, the copier mode is a mode in which image data is read (a document is read by a scanner or the like to generate image data), and an image of the image data is printed on a sheet. When the copier mode is selected, the user can select either the monochrome mode for outputting a monochrome image or the full color mode for outputting a full color image.

  The operation panel 10 includes a display unit 11, and a user performs an input operation on the operation screen displayed on the display unit 11. In the display unit 11, selection of processing modes and various settings are possible.

  The image input device 20 is an image reading unit that reads an original and generates image data in the copier mode. Specifically, the image input device 20 has a scanner unit provided with a CCD (Charge Coupled Device), and converts the light reflected from the document into an electrical signal (analog image signal) separated into RGB colors. The electric signal is input to the image processing apparatus 30.

  Note that the image input device 20 reads a document image in full color even when either full color mode or monochrome mode is selected.

  The image processing device 30 performs image processing on image data sent from the image input device 20 in the copier mode. Then, in the copier mode, the image data subjected to the image processing is transmitted to the image output device 40.

  The image output device (for example, a printer) 40 prints (forms an image) the image of the image data sent from the image processing device 30 on a recording medium (for example, paper, recording paper, etc.) A color printer using an electrophotographic system can be mentioned.

  The storage device 50 is a data storage device provided with a storage medium such as a hard disk or solid state drive (SSD) for temporarily storing image data handled by the image processing device 30, or a flash memory.

The software processing unit 60 executes various software stored in the storage device 50.
The communication unit 70 performs communication connection with an external device. For example, it is communicably connected to the data input terminal 80 to enable data input.

  The control unit 90 is a computer including a processor such as a central processing unit (CPU) or a digital signal processor (DSP), and centrally controls various hardware provided in the image forming apparatus 1. The control unit 90 also has a function of controlling data transfer between the hardware provided in the image forming apparatus 1.

  The image forming apparatus 1 according to the first embodiment is characterized in that the image processing apparatus 30 according to the first embodiment realizes image processing in line with the user's intention.

(Characteristic configuration of the image processing apparatus)
As shown in FIG. 2, the image processing apparatus 30 is mainly characterized by including an image processing unit 31, a feature amount extraction unit 32, a document type determination unit 33, a parameter setting unit 34, a storage unit 35 and a control unit 39. And

The image processing unit 31 performs image processing based on the document type and the setting of the user.
The feature amount extraction unit 32 extracts feature amounts of image data.
The document type determination unit 33 determines the document type from the feature amount of the document.
The parameter setting unit 34 allows the user to set image processing parameters.
The storage unit 35 is provided with an area for storing a control program 351 for controlling processing in each unit of the image processing apparatus 30 and a history storage unit 352 for storing a history of setting of the user.

(Basic configuration of image processing apparatus)
Here, the basic configuration of the image processing apparatus 30 according to the first embodiment will be described.
The image processing apparatus 30 is an integrated circuit that performs image processing on image data (image signal), and is configured of an application specific integrated circuit (ASIC).

  As shown in FIG. 3, the image processing apparatus 30 mainly includes an A / D (analog / digital) conversion unit 30a, a shading correction unit 30b, an input processing unit 30c, an automatic document type determination unit 30d, and a region separation processing unit 30e. Region separation signal compression unit 30f, compression unit 30g, region separation signal decoding unit 30h, decoding unit 30i, image adjustment unit 30j, color correction unit 30k, black generation / under color removal unit 30m, spatial filter unit 30n, magnification change unit 30p, an output tone correction unit 30q, and a halftone generation unit 30r are configured.

  The A / D (analog / digital) conversion unit 30 a is a block that converts a color image signal (RGB analog signal) sent from the image input device 20 into digital image data (RGB digital signal).

  The shading correction unit 30 b is a block that performs processing to remove various distortions generated in the illumination system, the imaging system, and the imaging system of the image input device 20 on the image data sent from the A / D conversion unit 30 a. .

  The input processing unit 30c is a block that performs gradation conversion processing such as γ correction processing on each of the RGB image data sent from the shading correction unit 30b.

  The automatic document type discrimination unit 30d determines the type of the document read by the image input device 20 based on the RGB image data (RGB density signal) subjected to processing such as γ correction by the input processing unit 30c. Do. Here, the type of the document to be determined includes a text document, a printed photo document, a text-printed photo document in which text and printed photos are mixed, and the like.

  The automatic document type discrimination unit 30d determines whether the read document is a color document or a black-and-white document based on the image data. It is also possible to determine whether the document is a blank document (whether it is a plain document or not). The determined result is transmitted and stored in the storage device as a document type signal.

  The area separation processing unit 30e determines, for each pixel of the input image, to which image area the pixel is classified based on the RGB image data, and generates an area separation signal indicating the determination result. I do.

  Here, the image area determined by the area separation processing unit includes a black character area, a color character area, a halftone area, and the like. In the region separation process, the image region may not be determined for each pixel, but may be determined for each block including a plurality of pixels.

  The segmentation class signal compression unit 30f is a block that performs compression processing on the segmentation class signal generated for each pixel. The compression processing in the region separation signal compression unit 30f is performed, for example, based on the MMR (Modified Modified Reed) method or the MR (Modified Reed) method, which is a lossless compression method.

  The control unit 90 temporarily stores the encoded code (coded image data) output from the compression unit 30g and the area separation signal code (compressed area separation signal) output from the area separation signal compression unit 30f. It is stored in the device 50 and managed as filing data. Then, when the copy output operation is instructed, the control unit 90 reads the encoded code and the segmentation code corresponding to the encoding code from the storage device 50, and the decoding unit 30i and the segmentation signal decoding unit 30h. Hand over to each. Further, based on the stored document type signal, image processing parameters corresponding to the document type are set in the processing unit of the subsequent stage.

  The control unit 90 associates the storage address or data name of the encoded code with the storage address of the area separation signal code, and writes it in a management table (not shown). That is, the control unit 90 controls the reading or writing of the coding code and the segmentation signal code using the management table.

  The decoding unit 30i decompresses the encoded code into RGB image data by performing a decoding process on the encoded code. In addition, the region separation signal decoding unit 30 h performs a decoding process on the region separation signal code.

The area separation signal decoded by the area separation signal decoding unit 30h is delivered to the color correction unit 30k, the black generation / undercolor removal unit 30m, the spatial filter unit 30n, and the halftone generation unit 30r.
Then, in the black generation / undercolor removal unit 30m, the spatial filter unit 30n, and the halftone generation unit 30r, switching of the image processing content is performed according to the type of the image area.

  The image adjustment unit 30j performs background removal correction by detecting the background of the RGB image data sent from the decoding unit 30i. Furthermore, the image adjustment unit 30 j performs adjustment of brightness, vividness, and RGB balance (color adjustment, overall color adjustment such as reddish bluish) based on setting information input from the operation panel by the user.

  The color correction unit 30k is a block that performs color correction processing to convert RGB image data into CMY image data when the full color mode is selected, and performs processing to improve color reproducibility on the image data. is there. Note that the above color correction processing is realized by creating a LUT (look-up table) in which input values (RGB) and output values (CMY) are associated, and looking up output values from the created LUT. .

  When the full color mode is selected, the black generation / under color removal unit 30m performs black generation to generate black (K) image data from the C, M, and Y image data output from the color correction unit 30k. This block is a block that performs processing of generating new CMY image data by subtracting black (K) image data from CMY image data. Thereby, when the full color mode is selected, as shown in FIG. 3, the CMY image data is converted into the CMYK four-color image data by the black generation / under color removal portion 30m.

  The spatial filter unit 30 n performs spatial filter processing (emphasis processing, smoothing processing, and the like) with a digital filter based on the segmentation signal with respect to the CMYK or CMY image data output from the black generation / undercolor removal unit 30 m. Is going. That is, the spatial filter unit 30 n executes different image processing for each image area based on the area separation signal.

  The scaling unit 30 p is a block that performs enlargement and reduction processing of an image based on a scaling command (information indicating the magnification of a print image) input by the user via the operation panel 10.

  The output tone correction unit 30 q is a block that performs output γ correction processing for outputting the image data output from the scaling unit 30 p to a recording medium such as a sheet.

The halftone generation unit 30r executes tone reproduction processing (halftone generation processing) necessary for printing an image in the image output device 40 using an error diffusion method or a dither method.
Then, the CMYK or CMY image data output from the halftone generation unit 30r is delivered to the image output device 40, and the image output device 40 prints the image of the image data on a recording medium (for example, paper).

(Regarding color correction processing in the image processing apparatus)
Here, color correction processing in the image processing apparatus 30 will be described.
The color correction processing that is usually performed uses a color correction table (table for converting RGB signals into CMY signals) according to the output characteristics of the electrophotographic system, and converts parameters for performing black generation and under color removal.

  Then, the CMY signal is converted to a CMYK signal using the following equation.

With regard to the values α and β in the equation, an image is output with various values using an image output device, and appropriate values are obtained. In the electrophotographic method, the value is switched by the area separation signal.
For example, for the character area, for example, α = 1 and β = 1 are set, and the amount of generated black is increased to reduce the amount of CMY used. This reduces the amount of CMY to reduce color bleeding and reproduces black letters more clearly.

Instead of using the color correction table in the color correction unit, color correction processing may be performed by a color masking method. In the case of the color masking method, the L ^* a ^* b ^* value (CIE 1976 L ^* a ^* b ^* signal (CIE: Commission International de l'Eclairage: international lighting) output when a CMY signal is given to the image output device Committee: L ^* : Brightness, a ^* , b ^* : Chromaticity)) RGB data when the scanner reads a color patch with the same L ^* a ^* b ^* and CMY data given to the image output device A large number of sets are prepared, and the coefficients of the transformation matrix from a11 to a33 in Equation 3 are calculated from the combinations thereof. Color correction processing is performed using these coefficients. In order to further improve the accuracy, it is sufficient to add a second or higher order term.

(About the image processing apparatus)
Next, a method of determining the document type in the image processing apparatus 30 will be described.
The document type discrimination process in the image processing apparatus 30 is performed as follows.

(1) The minimum density value and the maximum density value in an n × m (for example, 5 × 15) block including the target pixel are calculated.
(2) The maximum density difference is calculated using the calculated minimum density value and maximum density value.
(3) A total density busyness (for example, the sum of values calculated for the main scanning direction and the sub scanning direction), which is the sum of the absolute values of density differences between adjacent pixels, is calculated.
(4) The calculated maximum density difference is compared with the maximum density difference threshold, and the calculated total density busyness is compared with the total density busyness threshold.
If the maximum density difference <the maximum density difference threshold and the total density busyness <the total density busy threshold, it is determined that the pixel of interest belongs to the background / print paper photographic area.
When the above condition is not satisfied, it is determined that the target pixel belongs to the character / halftone area.

(5) For pixels determined to belong to the background / printing paper photo area When the pixel of interest satisfies the maximum density difference <background / printing paper photo judgment threshold, it is determined to be the background pixel and the above conditions are not satisfied. It is determined that the printing paper is a photograph (continuous tone area) pixel.

(6) Regarding the pixel determined to belong to the character / halftone area If the pixel of interest satisfies the condition of total density busyness <maximum density difference multiplied by the character / halftone threshold, it is a character pixel If it is judged that the above condition is not satisfied, it is judged to be a halftone pixel.

(7) The number of pixels classified into the background area, the printing paper photograph area, the character area and the halftone dot area is counted, and the count value and the predetermined ground area, the printing paper photograph area, the halftone dot area and the characters are counted. The type of the entire document is determined by comparing with the threshold value for the area.

  For example, assuming that the detection accuracy is high in the order of characters, halftone dots, and printing paper, if the ratio of the character area is 30% or more of the total number of pixels, the ratio of the text original and the halftone area is 20% of the total pixels In the above case, when the ratio of the halftone original (printed photo original) and the printing paper photo area is 10% or more of the total number of pixels, it is determined that the printing paper is a photographic original.

  In addition, when the ratio of the character area and the ratio of the halftone area are respectively equal to or more than the threshold value, it is determined that the document is a character / halftone document (character print photo document).

The methods of (1) to (6) can be used as the area separation processing.
When the type of the original is to be determined, it is only necessary to determine the type of the original. Therefore, for example, (1) the resolution of the image data is reduced to lower the resolution; Use and do it using data that has been separated into regions.

(Image processing by image processing device)
Next, an example of image processing based on input image data in the image processing apparatus 30 according to the first embodiment will be described with reference to the drawings.

  In the image processing apparatus 30, image processing is performed according to the type of the original that is the basis of the image data. Specifically, when image processing is performed on a document image in the image processing apparatus 30, the automatic document type determination unit 30d determines that the determination result is an image including halftone dots in the document image (or When the user selects a document mode including halftone dots), it is determined whether the document is a print document or a print document, and image processing according to the document type is performed.

  Although the image processing apparatus 30 is configured to automatically determine the type (type) of the document by the automatic document type determination unit 30d, both the print document and the print document are halftone dots, which are difficult to distinguish. May be

  The characteristics of reading by the scanner unit (image reader) are different between the print original and the print original, and color conversion aiming at the print original may result in color reproduction with different shades of the print original (different lightness). When processing a print and a print original, appropriate processing may not be performed with the same image processing parameters.

  Therefore, in the case of an original for which the determination of the original type is difficult from the image scanned by the scanner unit of the image input device 20, as shown in FIG. 4A, the image adjustment displayed on the display unit 11 of the operation panel 10. In the setting screen 11a1, the user performs image processing by changing setting values so as to obtain a desired image from the default state of image adjustment.

Here, for example, the user is set to increase the lightness of the image.
The change of the image adjustment is stored in the history storage unit 352 of the storage unit 35 as a history of the setting change of the image adjustment by the user. Then, the document type determination unit 33 determines an appropriate document type based on the history (document type, lightness, setting frequency, etc.) of the image adjustment setting change by the user, and the document determined by the image processing unit 31 Optimal image processing is performed according to the type.

  In the document type determination unit 33, as shown in FIG. 4 (b), the document type is determined by the automatic document type determination unit 30d based on the information of the halftone image extracted from the image data by the feature amount extraction unit. For example, when the automatic document type discrimination unit 30d determines that the document is a print document as an image (image of halftone region) including many halftone images, the brightness of the image in the history of the image adjustment setting change of the user When it is often selected to increase / decrease the density, it is judged as a print original. As a result, the document type is changed to the print document.

  On the other hand, when the automatic document type discrimination unit 30d determines that the image is a print document as an image of a halftone dot area, the user lowers the lightness of the image by image adjustment / increases the density in the history of setting change of image adjustment of the user. When the frequency of selecting the process is high, it is determined that the document is a print document. As a result, the document type is changed to the print document.

  In this manner, by discriminating between the print original and the print original, it is possible to provide the user with desired color reproduction based on the history of setting change of the user.

(Image processing according to document type by image processing device)
Next, in the image processing apparatus 30 according to the first embodiment, processing in the case of determining the document type based on the history of image adjustment by the user will be described along a flowchart.
5 and 6 are flowcharts showing processing steps of determining the document type based on the history of image adjustment by the user in the image processing apparatus according to the first embodiment.

  As shown in FIGS. 5 and 6, when the image processing of the read original is started by the image processing apparatus 30, the user can select the original mode. Here, the user can manually select an original mode such as a print picture or photographic paper picture, or can not automatically select a specific original mode, and can leave it to automatic selection processing by automatic original discrimination processing ( Step S101). Then, when the setting is changed from the initial setting value of the image adjustment by the user (step S103), the history of the change of the image adjustment is stored (step S105).

Then, it is determined whether the document mode is selected (step S107).
If it is determined in step S107 that the document mode is selected, it is determined whether the halftone dot area is determined to be a print document (step S111).

  On the other hand, if it is determined in step S107 that the document mode is not selected, automatic document type determination processing is executed (step S109), and the process proceeds to step S111.

  If it is determined in step S111 that the halftone dot area is determined to be a print document, the process proceeds to step S113, and it is determined whether the frequency of increasing the lightness in the stored history is high.

  If it is determined in step S113 that the frequency of raising the lightness is high in the stored history, the halftone dot area is changed to the setting for determining the print document (step S115), and the process proceeds to step S131. If it is not determined that the frequency of raising the lightness is high in the stored history, the process directly proceeds to step S131.

  On the other hand, if it is determined in step S111 that the halftone dot area is not determined to be a print document, the process proceeds to step S117, and it is determined whether the frequency of lowering the lightness is high in the stored history.

  If it is determined in step S117 that the frequency of lowering the lightness in the stored history is high, the setting is made such that the halftone dot area is determined to be a print document (step S119), and the process proceeds to step S131. If it is not determined that the frequency of lowering the lightness is high in the stored history, the process directly proceeds to step S131.

  In step S131, parameters corresponding to the setting of the document mode and the document type are set. Then, the document reading is executed (step S133), the image processing of the read document image is executed (step S135), and the image with the optimum setting according to the document type is output (step S137). Thus, the image processing according to the document type is executed.

  Here, when the user often selects the process of increasing the lightness of the image by image adjustment, the setting of the determination process is changed so that the pixel determined to be a halftone dot is determined to be the MFP output document (print document). I have to. On the other hand, when the user often selects the process of lowering the lightness of the image by image adjustment, the setting of the determination process is changed so that the pixel determined to be a halftone dot is determined to be a print document.

  As a criterion for determining the document type based on the history of the setting change of the user, for example, the case where the user setting for the last 10 times of the lightness change of the image adjustment increases the lightness three times or more (or lowers the lightness) Switch

  In the subsequent processing, the image processing parameters are switched according to the determination result of the document type. Specifically, the color correction LUT used in the color correction unit of FIG. 1 is changed according to the characteristics according to the type of document. If the halftone dot is determined to be a print original, a color correction LUT corresponding to the read characteristic of the print original is used. When the halftone dot is determined to be a print original, a color correction LUT corresponding to the read characteristic of the print original is used.

  Since the configuration is as described above, according to the first embodiment, the image processing unit 31, the feature amount extraction unit 32, the document type determination unit 33, and the parameters as the image processing device 30 configuring the image forming device 1 The setting unit 34 and the history storage unit 352 are provided, and the document type determination unit 33 changes the determination criteria of the determination process of the document type based on the history of the user setting. Because the image processing can be performed, the user can be provided with desired color reproduction.

Second Embodiment
Next, a second embodiment will be described with reference to the drawings.
In addition, for convenience of explanation, the same reference numerals are given to the configurations having the same functions as in the first embodiment, and the description will be omitted.

  FIG. 7 is a block diagram showing a characteristic configuration of the image processing apparatus according to the second embodiment, and FIGS. 8A to 8D show an example of changing a setting screen of image adjustment parameters in the image processing apparatus. FIG.

(Characteristic configuration of the image processing apparatus)
The image processing device 230 according to the second embodiment includes an image processing unit 31, a parameter setting unit 34, a storage unit 35, and a control unit 39, as shown in FIG. 7, and further, the parameter display unit 36. It is characterized by having.

  The storage unit 35 is provided with a parameter storage unit 353 in addition to the control program 351 and the history storage unit 352.

  The parameter display unit 36 is characterized by switching and displaying image processing parameters based on the history in which the image processing parameters are set by the user.

  Next, an example of image processing based on input image data in the image processing apparatus 230 according to the second embodiment will be described with reference to the drawings.

  In the image processing device 230, image processing is performed according to the type of the original that is the basis of the image data. Specifically, when image processing is performed on a document image in the image processing device 230, if the automatic document type discrimination unit 30d determines that the determination result is an image including halftone dots in the document image, the document It is determined whether the document is a print document or a print document, and image processing according to the document type is performed.

  When the user performs image adjustment when outputting an image, as shown in FIG. 8A, the image adjustment default on the image adjustment setting screen 211 a 1 displayed on the display unit 11 of the operation panel 10. From the state, the image processing is performed by changing the setting value so as to obtain a desired image.

  When the user often selects the maximum value (or the minimum value or the value near the value) of the settable range in image adjustment, if the user does not set a value exceeding the settable range, the user's intention is set. It may not be possible to reflect the user's intention just by changing the default value, as it may not be reproduced along with it.

  Therefore, as shown in FIG. 8A, by changing the settable range according to the history of the setting of the user, it is possible to perform the process reflecting the user's intention.

  When the frequency of selecting the maximum value (or the minimum value) of the setting range in the history of the setting change of the image adjustment of the user is frequent, the range of selectable settings is expanded. Specifically, the parameter corresponding to the setting outside the setting range is displayed in advance so as to be settable beyond the settable range in which the parameter is displayed.

  When it is determined in the parameter setting unit 34 that the setting range needs to be expanded, as shown in FIG. 8B, the parameter setting unit 34 is set outside the parameter settable range (settings 1 to 5) of the initial value. The corresponding parameter settings 6 and 7 are added to the setting area of the setting screen 211 a 1 so that the user can select. Here, reference numeral 211 b is an enlarged selectable range.

Here, in the setting screen 211a1, a parameter setting range and assignment of parameters will be described.
In the second embodiment, the parameter setting range of the initial value (default) is set to 1, 2, 3, 4, 5 as setting 1 to 5 for parameters 1 to 9 as shown in FIG. The parameters are 3, 4, 5, 6, and 7, respectively.

  When expanding the parameter setting range, as shown in FIG. 8D, setting 1 to 7 for parameters 1 to 9 corresponds to settings 1, 2, 3, 4, 5, 6, 7 As parameters 3, 4, 5, 6, 7, 8, 9, they are expanded to settings 6, 7.

  In this way, although the parameter setting can only be set up to the setting 5 of the upper limit in the initial value, setting 6 and 7 of higher values can be set by changing the parameter setting range.

(Image processing according to document type by image processing device)
Next, processing in the case where the parameter setting range is changed based on the history of image adjustment by the user in the image processing apparatus 230 according to the second embodiment will be described along a flowchart.
9 and 10 are flowcharts showing processing steps for changing the parameter setting range in the image processing apparatus according to the second embodiment.

  As shown in FIGS. 9 and 10, when the image processing of the read original is started by the image processing apparatus 230, the user can select the original mode. Here, the user can manually select an original mode such as a print picture or photographic paper picture, or can not automatically select a specific original mode, and can leave it to automatic selection processing by automatic original discrimination processing ( Step S201). Then, when the setting is changed from the initial setting value of the image adjustment by the user (step S203), the history of the change of the image adjustment is stored (step S205). Then, it is determined whether the frequency of setting near the upper limit (lower limit) of the parameter setting range is high (step S207).

  If it is determined in step S207 that the frequency set near the upper limit (lower limit) of the parameter setting range is high, the process proceeds to step S209, and it is determined whether the parameter remains outside the set upper limit (lower limit). Be done. If it is determined that the parameter remains outside the set upper limit (lower limit), the parameter setting range is expanded (step S215), and the process returns to step S203. On the other hand, if it is determined that no parameter remains outside the set upper limit (lower limit), the process proceeds to step S211.

  On the other hand, if it is not determined in step S207 that the frequency set near the upper limit (lower limit) of the setting range of the parameter is high, the process proceeds to step S211.

In step S211, it is determined whether the document mode is selected.
If it is determined in step S211 that the document mode is selected, the process proceeds to step S231. On the other hand, if it is determined in step S211 that the document mode is not selected, automatic document type discrimination processing is executed (step S213), and the process proceeds to step S231.

  In step S231, parameters corresponding to the setting of the document mode and the document type are set. Then, the document reading is executed (step S233), the image processing of the read document image is executed (step S235), and the image with the optimum setting according to the document type is output (step S237). Thus, the image processing according to the document type is executed.

  In this manner, in the image processing apparatus 230, when the user performs image adjustment, the setting range is selected if the parameter remains when the setting close to the setting upper limit (or the setting lower limit) is frequently selected. The user can be provided with desired color reproduction by assigning the parameters outside of the enlarged setting items to the enlarged setting items.

  According to the second embodiment, the image processing apparatus 230 includes the image processing unit 31, the parameter setting unit 34, the storage unit 35, and the control unit 39 according to the second embodiment, and further, the parameter display The image processing parameters are switched and displayed based on the history in which the image processing parameters are set by the user by the parameter display unit 36. Therefore, the intention of the user exceeds the parameter setting range of the initial value. Since the image processing can be performed along with the above, it is possible to provide the user with desired color reproduction.

Third Embodiment
Next, a third embodiment will be described with reference to the drawings.
In addition, for convenience of explanation, the same reference numerals are given to components having the same functions as those of the second embodiment, and the description will be omitted.

  FIGS. 11A to 11D are explanatory diagrams showing an example of changing a setting screen of image adjustment parameters in the image processing apparatus according to the third embodiment.

(Characteristic configuration of the image processing apparatus)
The third embodiment has the same configuration as that of the second embodiment in the configuration of the image processing apparatus, and changes the settable range based on the history of setting change of the image adjustment. Similarly, the present invention is characterized in that the parameter outside the current parameter can be selected by changing the parameter assigned to the setting of the image adjustment instead of expanding the parameter settable range.

  In the third embodiment, as shown in FIG. 11A, when the frequency of selecting the maximum value (or the minimum value) of the setting range is high in the history of the setting change of the image adjustment, the selectable setting range Change the assignment of parameters corresponding to Specifically, not only the settable range in which the parameters are displayed but also parameters corresponding to settings outside the parameters are prepared in advance.

  When it is determined that the setting range needs to be expanded, as shown in FIG. 11B, the correspondence between the setting selection items displayed on the screen and the parameters so as to correspond to the parameters outside the current settable range. Change

  In the parameter setting range of the initial value, as shown in FIG. 11C, from the state where parameter 6 is assigned to setting 4 and parameter 7 is assigned to setting 5, as shown in FIG. , Parameter 4 in setting 4 and parameter 9 in setting 5 are changed. At this time, the display is changed to new assignment setting 4 (parameter 8) close to the original selection item 5 (parameter 7).

  By configuring in this way, switching of the parameter changes the scale change amount from setting 3 to setting 4 to be displayed from parameter 5 to parameter 8 so that the parameter changes significantly when setting near the upper limit It will be possible to make settings.

(Image processing according to document type by image processing device)
Next, processing in the case where the parameter setting range is changed based on the history of image adjustment by the user in the image processing apparatus according to the third embodiment will be described along the flowchart.
12 and 13 are flowcharts showing processing steps for changing the parameter setting range in the image processing apparatus according to the third embodiment.

  As shown in FIGS. 12 and 13, when the image processing apparatus starts image processing of the read document, the user can select the document mode. Here, the user can manually select an original mode such as a print picture or photographic paper picture, or can not automatically select a specific original mode, and can leave it to automatic selection processing by automatic original discrimination processing ( Step S301). Then, when the setting is changed from the initial setting value of the image adjustment by the user (step S303), the history of the change of the image adjustment is stored (step S305). Then, it is determined whether the frequency set near the upper limit (lower limit) of the parameter setting range is high (step S307).

  If it is determined in step S307 that the frequency set near the upper limit (lower limit) of the parameter setting range is high, the process proceeds to step S309, and it is determined whether the parameter remains outside the set upper limit (lower limit). Be done. If it is determined that the parameter remains outside the setting upper limit (lower limit), the relationship between the setting range and the parameter assignment is changed (step S315), and the parameter setting range is assigned to the initial setting item. The display is changed to the item to which the parameter closest to the parameter is assigned (step S317). Then, the process returns to step S303.

  On the other hand, if it is determined that no parameter remains outside the set upper limit (lower limit), the process proceeds to step S311.

  If it is not determined in step S307 that the frequency of setting near the upper limit (lower limit) of the parameter setting range is high, the process proceeds to step S311.

In step S311, it is determined whether the document mode is selected.
If it is determined in step S311 that the document mode is selected, the process proceeds to step S331. On the other hand, if it is determined in step S311 that the document mode is not selected, automatic document type discrimination processing is executed (step S313), and the process proceeds to step S331.

  In step S331, parameters corresponding to the setting of the document mode and the document type are set. Then, the document reading is executed (step S333), the image processing of the read document image is executed (step S335), and the image with the optimum setting according to the document type is output (step S337). Thus, the image processing according to the document type is executed.

  In this manner, in the image processing apparatus, when the user performs image adjustment, if the frequency at which the setting close to the setting upper limit (or the setting lower limit) is selected is high, the scale is displayed when the parameter remains. By changing the amount of change (the width of change) corresponding to one scale (one unit) and assigning the outside parameter to the setting item, it is possible to make the setting by greatly changing the parameter. .

  Since the configuration is as described above, according to the third embodiment, as the configuration of the image processing apparatus, as in the second embodiment, the image processing unit 31, the parameter setting unit 34, and the storage unit 35 , And a parameter display unit 36, and when there is a high frequency of setting the vicinity of the setting limit based on the history in which the image processing parameter is set by the user, the parameter display unit 36 By changing the amount of change corresponding to one scale of the scale displayed on the setting limit, it becomes possible to make a large change in the setting for setting, and image processing according to the user's intention can be performed. Because it can, the user can be provided with desired color reproduction.

Fourth Embodiment
Next, a fourth embodiment will be described with reference to the drawings.
For convenience of explanation, the same numerals are given to the composition which has the same function as a 1st embodiment and a 2nd embodiment, and explanation is omitted.

  FIG. 14 is a block diagram showing a characteristic configuration of the image processing apparatus according to the fourth embodiment, and FIGS. 15 (a) to 15 (d) are parameters of image adjustment based on the history of setting change of the user in the image processing apparatus. It is an explanatory view showing an example which changes a setting screen.

(Characteristic configuration of the image processing apparatus)
As shown in FIG. 14, the image processing apparatus 430 according to the fourth embodiment includes an image processing unit 31, a feature amount extraction unit 32, a document type determination unit 33, a parameter setting unit 34, and a storage unit 35. A control unit 39 is provided, and further, a parameter display unit 36 is provided.

  The storage unit 35 is provided with a parameter storage unit 353 in addition to the control program 351 and the history storage unit 352.

  When the user performs image adjustment when outputting an image, as shown in FIG. 15B, the frequency at which the user selects the process of increasing the lightness of the image by image adjustment is the same as in the first embodiment. If the number is large, as shown in FIG. 15C, the document type determination unit 33 changes the setting of the determination process so that the pixel determined to be a halftone dot is determined as a print document.

  When the pixel determined as the halftone dot is already set as the print original, that is, when the setting of the determination process of the pixel determined as the halftone dot is not changed, as in the second embodiment, FIG. As shown in, the settable range of the image adjustment is changed.

  Further, when the user frequently selects the process of lowering the lightness of the image by image adjustment, the setting of the determination process is changed so that the pixel determined to be a halftone dot is determined to be a print document, as in the first embodiment. Do.

  When the pixel determined as the halftone dot is already set as the print original, that is, when the setting of the determination process of the pixel determined as the halftone dot is not changed, the settable range of the image adjustment as in the second embodiment Change

  The other processing is performed in the same manner as the image processing in the first embodiment and the second embodiment.

(Image processing according to document type by image processing device)
Next, in the image processing apparatus 430 according to the fourth embodiment, processing in the case of determining the document type based on the history of image adjustment by the user will be described along the flowchart.
FIGS. 16, 17 and 18 are flowcharts showing processing steps of changing the parameter setting range by determining the document type based on the history of image adjustment by the user in the image processing apparatus according to the fourth embodiment.

  As shown in FIGS. 16, 17, and 18, when the image processing of the read original is started by the image processing device 430, the user can select the original mode. Here, the user can manually select an original mode such as a print picture or photographic paper picture, or can not automatically select a specific original mode but leave it to automatic selection processing by automatic original discrimination processing ( Step S401). Then, when the setting is changed from the initial setting value of the image adjustment by the user (step S403), the history of the change of the image adjustment is stored (step S405).

  Then, it is determined whether the halftone dot area is the setting of the print original (step S407). If it is determined in step S407 that the halftone dot area is determined to be a print document, the process advances to step S409 to determine whether the frequency of increasing the lightness in the stored history is high.

  If it is determined in step S409 that the frequency of raising the lightness is high in the stored history, the halftone dot area is changed to be determined as a print original (step S411), and the process proceeds to step S431. If it is not determined that the frequency of raising the lightness is high in the stored history, the process proceeds to step S413.

  In step S413, it is determined whether the frequency of setting near the upper limit of the parameter setting range is high. If it is determined in step S413 that the frequency of setting near the upper limit of the parameter setting range is high, the process proceeds to step S415, and it is determined whether a parameter remains outside the setting upper limit. If it is determined that the parameter remains outside the setting upper limit, the setting range of the parameter is expanded (step S417), and the process returns to step S403. On the other hand, if it is determined that no parameter remains outside the set upper limit, the process proceeds to step S431.

  On the other hand, if it is determined in step S407 that the halftone dot area is not determined to be a print document, the process proceeds to step S421.

  In step S421, it is determined whether the frequency of lowering the lightness in the stored history is high. If it is determined in step S421 that the frequency of lowering the lightness is high in the stored history, the halftone dot area is changed to be a print document (step S423), and the process proceeds to step S431. If it is not determined that the frequency of lowering the lightness is high in the stored history, the process proceeds to step S425.

  In step S425, it is determined whether the frequency set near the lower limit of the parameter setting range is high. If it is determined in step S425 that the frequency of setting near the lower limit of the parameter setting range is high, the process proceeds to step S427, and it is determined whether a parameter remains outside the setting lower limit. If it is determined that the parameter remains outside the setting lower limit, the setting range of the parameter is expanded (step S429), and the process returns to step S403. On the other hand, if it is determined that no parameter remains outside the set lower limit, the process proceeds to step S431.

In step S431, it is determined whether the document mode has been selected.
If it is determined in step S431 that the document mode has been selected, parameters corresponding to the setting of the document mode and the document type are set (step S435). Then, the document reading is executed (step S437), the image processing of the read document image is executed (step S439), and the image with the optimum setting according to the document type is output (step S441).

On the other hand, if it is determined in step S431 that the document mode is not selected, the document type determination process is performed (step S433), and the process proceeds to step S435. Image output is performed.
Thus, the image processing according to the document type is executed.

  According to the fourth embodiment, the image processing apparatus 430 includes the image processing unit 31, the feature amount extraction unit 32, the document type determination unit 33, the parameter setting unit 34, and the parameter display according to the fourth embodiment. Document storage unit 35 includes parameter storage unit 353 in addition to history storage unit 352 in storage unit 35, so that document type determination unit 33 determines the determination criteria for the document type determination process based on the history of user settings. Since the display is changed to display the display of the image processing parameter beyond the parameter setting range of the initial value, the image processing according to the user's intention can be performed, and the user can be provided with desired color reproduction.

  In the embodiment described above, the document type determination unit 33, which is a characteristic configuration of the image processing apparatus, determines the print document and the print document determined in the halftone dot area. As the determination, for example, a document mainly composed of character information, a document mainly composed of photograph information, a document such as plain paper or the like may be determined.

  Further, the present invention developed in the image processing apparatus according to the above-described embodiment may be configured by hardware logic or may be realized by software using a CPU as follows.

  That is, the image processing apparatus is a storage device such as a CPU that executes an instruction of a control program that realizes each function, a ROM that stores the program, a RAM that expands the program, and a memory that stores the program and various data. A medium) etc. may be provided.

  The recording medium includes, for example, a tape system such as a magnetic tape and a cassette tape, a magnetic disk such as a floppy (registered trademark) disk / hard disk, and an optical disk such as a CD-ROM / MO / MD / DVD / CD-R. A disk system, a card system such as an IC card (including a memory card) / optical card, or a semiconductor memory system such as a mask ROM / EPROM / EEPROM / flash ROM can be used.

  The image processing apparatus may be configured to be connectable to a communication network, and the program code may be supplied via the communication network. The communication network is not particularly limited. For example, the Internet, intranet, extranet, LAN, ISDN, VAN, CATV communication network, virtual private network, telephone network, mobile communication network, satellite communication A network etc. are available.

  Further, the transmission medium constituting the communication network is not particularly limited. For example, IEEE1394, USB, power line carrier, cable TV line, telephone line, wired line such as ADSL line etc., infrared rays like IrDA or remote control, Bluetooth ( It is also possible to use a radio such as a registered trademark), an 802.11 radio, an HDR, a mobile telephone network, a satellite link, and a terrestrial digital network.

  The present invention can also be realized in the form of a computer data signal embedded in a carrier wave, in which the program code is embodied by electronic transmission.

  As described above, the present invention is not limited to the above-described embodiment, and various modifications can be made within the scope of the claims. It is obvious that those skilled in the art can conceive of various changes or modifications within the scope described in the claims, that is, they are appropriately changed without departing from the scope of the present invention. Embodiments obtained by combining technical means are also included in the technical scope of the present invention.

1, 230, 430 Image processing apparatus 10 Operation panel 11 Display section 11a1, 211a1 Setting screen 20 Image input apparatus 30 Image processing apparatus 31 Image processing section 32 Feature quantity extraction section 33 Document type determination section 34 Parameter setting section 35 Storage section 36 Display unit 39 Control unit 40 Image output device 50 Storage device 60 Software processing unit 70 Communication unit 80 Data input terminal 90 Control unit 352 History storage unit 353 Parameter storage unit

Claims (12)

In the image processing apparatus
A feature amount extraction unit that extracts feature amounts of image data;
A document type determination unit that determines a document type from the feature amount;
A parameter setting unit for setting image processing parameters by the user;
A history storage unit that stores a history of user settings;
An image processing unit that performs image processing based on the document type and the setting of the user;
Equipped with
The image processing apparatus, wherein the document type determination unit changes a determination criterion of the determination processing of the document type based on a history of setting of the user.   The image processing apparatus according to claim 1, wherein the setting of the user changes a lightness of the image data. In the image processing apparatus
A parameter storage unit that stores image processing parameters;
A parameter display unit for displaying the stored image processing parameters;
A parameter setting unit for setting image processing parameters by the user;
A history storage unit that stores a history of user settings;
An image processing unit that performs image processing based on the setting of the user;
Equipped with
The image processing apparatus, wherein the parameter display unit switches and displays the image processing parameter based on a history of setting of the user.   The image processing apparatus according to claim 3, wherein the switching of the image processing parameter increases or decreases a scale to be displayed.   5. The image processing apparatus according to claim 4, wherein the switching of the image processing parameter changes a change amount corresponding to one scale of the scale to be displayed. In the image processing apparatus
A feature amount extraction unit that extracts feature amounts of image data;
A document type determination unit that determines a document type from the feature amount;
A parameter storage unit that stores image processing parameters;
A parameter display unit for displaying the stored image processing parameters;
A parameter setting unit for setting image processing parameters by the user;
A history storage unit that stores a history of user settings;
An image processing unit that performs image processing based on the document type and the setting of the user;
Equipped with
The document type determination unit changes the determination criteria of the determination processing of the document type based on the history of the setting of the user,
The image processing apparatus, wherein the parameter display unit switches and displays image processing parameters. An image processing method for performing image processing in an image processing apparatus, comprising:
Extracting features of the image data;
Determining a document type from the feature amount;
Setting the image processing parameters by the user;
Storing a history of user settings;
Performing image processing based on the document type and the setting of the user;
Equipped with
An image processing method comprising: changing determination criteria of an original type determination process based on a history of setting of the user. An image processing method for performing image processing in an image processing apparatus, comprising:
Storing image processing parameters;
Displaying the stored image processing parameters;
A step of setting image processing parameters by the user;
Storing a history of user settings;
Performing image processing based on the setting of the user;
Equipped with
An image processing method comprising switching and displaying the image processing parameters based on a history of setting of the user. An image processing method for performing image processing in an image processing apparatus, comprising:
Extracting features of the image data;
Determining a document type from the feature amount;
Storing image processing parameters;
Displaying the stored image processing parameters;
A step of setting image processing parameters by the user;
Storing a history of user settings;
Performing image processing based on the document type and the setting of the user;
Equipped with
An image processing method comprising: changing a determination criterion of determination processing of a document type based on a history of setting of the user and switching and displaying an image processing parameter. A program for operating the image processing apparatus,
By computer
A function of extracting feature quantities of image data;
A function of determining a document type from the feature amount;
The ability to set image processing parameters by the user;
The function of storing the history of user settings,
A function of performing image processing based on the document type and the setting of the user;
And changing the determination criteria of the determination processing of the document type based on the history of the setting of the user. A program for operating the image processing apparatus,
By computer
The function of storing image processing parameters,
A function to display stored image processing parameters;
The ability for the user to set image processing parameters;
The function of storing the history of user settings,
A function of performing image processing based on the setting of the user;
And displaying the image processing parameter based on the history of the user's settings. A program for operating the image processing apparatus,
By computer
A function of extracting feature quantities of image data;
A function of determining a document type from the feature amount;
The function of storing image processing parameters,
A function to display stored image processing parameters;
The ability for the user to set image processing parameters;
The function of storing the history of user settings,
A function of performing image processing based on the document type and the setting of the user;
And changing the determination criteria of the determination processing of the document type based on the history of the setting of the user, and switching and displaying the image processing parameter.

Images