Examples disclosed herein relate to identifying a plurality of content areas of a document to be scanned, classifying each of the plurality of content areas into a content type, determining a minimum scanning resolution to maintain readability for each of the plurality of content areas according to the classified content type, and performing a scan of the document to a digital file, wherein each of the plurality of content areas is scanned at least at the determined minimum scanning resolution to maintain readability of the respective content area.

The invention relates to a method for scanning originals using a scanner, for example a flatbed scanner, said method comprising the steps of: (i) performing a pre-scan using a scanner bed (2) of the scanner, said scanner bed (2) having an extension in the x-direction and in the y-direction, in order to measure an x-extension (4) between a smallest (4a) and a largest extension value (4b) in the x-direction and to measure a y-extension (6) between a smallest (6a) and a largest extension value (6b) in the y-direction in respect of each of the originals on the scanner bed (2), and creating scanning frames (R1, R2, R3, R4, R5, R6) associated with the originals from the respectively measured extension values, (ii) specifying the scanning frame (R1, R2, R3, R4, R5, R6) with the largest y-extension (6) as the leading frame (R4), (iii) defining as subsequent frames (R3, R5) those which are located with their y-extension within a section (10) of the scanning bed which is spanned in the y-direction by the smallest and the largest extension value of the y-extension of the leading frame, (iv) creating an image processing dataset from said section, its leading frame and its subsequent frames, (v) registering said image processing dataset in a list of image processing datasets, (vi) performing steps (ii) to (v), without taking into account the scanning frames already existing in an image processing dataset, until all the scanning frames measured in step (i) are included in an image processing dataset, (vii) capturing image data by scanning the sections of the image processing datasets registered in the list, (viii) cropping the image data of originals from the captured image data along the scanning frame, and (ix) storing the cropped image data of the originals.

(FIG. 2)

An apparatus corrects a measurement value obtained by measuring a first image formed using a recording element that ejects ink, to identify a density characteristic of the recording element. The apparatus includes a first acquisition unit configured to acquire a second image obtained by measuring the first image, an identification unit configured to identify a boundary between regions in the second image, each of the regions corresponding to one of a plurality of head modules including the recording element, and a first correction unit configured to correct a measurement value of the second image based on the identified boundary.

An image reading apparatus includes a moving unit, a first detecting unit, and a second detecting unit. The moving unit moves a calibration plate in the main scanning direction relatively to a reading apparatus. The calibration plate is a plate for calibrating the reading apparatus. The reading apparatus has a reading unit and reading glass. The reading unit is arranged in the main scanning direction. The reading glass is disposed on a reading surface side of the reading unit. The first detecting unit detects an abnormality on the calibration plate from reading results. The reading results are obtained in such a manner that, while the moving unit is controlled to move the calibration plate, the reading unit reads the calibration plate. The second detecting unit detects an abnormality on the reading glass from the reading results.

An image processing apparatus operable to generate data for printing an image onto a printing medium using a plurality of color materials. The apparatus generates a plurality of color image data corresponding to the plurality of color materials based on image data; generates multinary color data corresponding to a combination of the plurality of color materials based on the plurality of color image data; and generates quantized data corresponding to each of the plurality of color materials based on the multinary color data and a threshold matrix. The apparatus generates the quantized data such that a color difference between a generated color in a case where a shift in a relative printing position does not occur and a generated color in a case where a shift in a relative printing position occurs is small.

An image processing apparatus operable to generate data for printing an image onto a printing medium using a plurality of color materials. The apparatus generates a plurality of color image data corresponding to the plurality of color materials based on image data; generates multinary color data corresponding to a combination of the plurality of color materials based on the plurality of color image data; and generates quantized data corresponding to each of the plurality of color materials based on the multinary color data and a threshold matrix. The apparatus generates the quantized data such that a color difference between a generated color in a case where a shift in a relative printing position does not occur and a generated color in a case where a shift in a relative printing position occurs is small.

There is a need to prevent the amount of information about read images from increasing excessively, improve the productivity, and reduce the storage capacity to store read images. There is provided a level setter that sets a level of accuracy for an image inspection process. An inspection image data generator generates inspection image data by using a resolution or a gradation setting corresponding to a level set by the level setter. A comparison image data generator generates comparison image data by using a resolution or a gradation setting corresponding to a level set by the level setter. Lowering a level set by the level setter decreases the amount of the inspection image data and the comparison image data.

A recording system for recording a recording image based on image data by repeating a pass operation in which a nozzle column discharges ink while reciprocating relatively to a recording medium in a main scanning direction to form dots on the recording medium, and a conveying operation of relatively moving the nozzle column and the recording medium in a sub-scanning direction crossing the main scanning direction, the recording system including an assigning section for obtaining a plurality of halftone data which is generated with respect to the same area of the image data based on the image data, and which corresponds to the ink of a predetermined color, and then assigning each of the halftone data obtained to the pass operations in the same direction in reciprocation in the main scanning direction in a predetermined recording area.

An apparatus corrects a measurement value obtained by measuring a first image formed using a recording element that ejects ink, to identify a density characteristic of the recording element. The apparatus includes a first acquisition unit configured to acquire a second image obtained by measuring the first image, an identification unit configured to identify a boundary between regions in the second image, each of the regions corresponding to one of a plurality of head modules including the recording element, and a first correction unit configured to correct a measurement value of the second image based on the identified boundary.

There is a need to prevent the amount of information about read images from increasing excessively, improve the productivity, and reduce the storage capacity to store read images. There is provided a level setter that sets a level of accuracy for an image inspection process. An inspection image data generator generates inspection image data by using a resolution or a gradation setting corresponding to a level set by the level setter. A comparison image data generator generates comparison image data by using a resolution or a gradation setting corresponding to a level set by the level setter. Lowering a level set by the level setter decreases the amount of the inspection image data and the comparison image data.