Abstract: An image processing apparatus is an image processing apparatus configured to execute image processing based on image data obtained by reading a print image continuously printed on a printing medium, the print image is marked with one marker per inspection unit region, and the image processing apparatus includes an obtaining unit configured to obtain data of an inspection target image obtained by reading the print image of the one inspection unit region and data of an adjacent image obtained by reading a region that is adjacent to the print image of the one inspection unit region in a conveyance direction of the printing medium and includes the marker, and a generating unit configured to generate an aligned image by aligning the inspection target image with a reference image based on the position of the marker on the inspection target image and the position of the marker on the adjacent image.

Abstract: An image processing apparatus comprises an obtainment unit configured to obtain a density unevenness image in which uneven density caused by a nozzle in a nozzle row for discharging ink occurs in an image for printing, and a determination unit configured to determine whether a printing position of the image for printing needs to be moved based on a feature amount in each of the image for printing and the density unevenness image.

Abstract: An image processing apparatus includes one or more memories storing instructions, and one or more processors executing the instructions to obtain document data before printing, to set an inspection area that is an inspection target for an image represented by the obtained document data, to update, in a case when the document data is modified, the set inspection area based on the modified document data, and to generate, based on the modified document data, a reference image for inspection of a printed material.

Abstract: The user burden to perform again setting work of an inspection area accompanying modification of document data is reduced. The inspection area set for an image represented by document data for printing is updated based on modified document data.

Abstract: An image processing apparatus comprises an obtainment unit configured to obtain a density unevenness image in which uneven density caused by a nozzle in a nozzle row for discharging ink occurs in an image for printing, and a determination unit configured to determine whether a printing position of the image for printing needs to be moved based on a feature amount in each of the image for printing and the density unevenness image.

Abstract: This disclosure provides an image processing apparatus that is connected to a printing apparatus, sequentially receives a plurality of recording media on which printing was performed by the printing apparatus, and inspects a quality of images formed on the recording media, wherein the image processing apparatus receives a reference image, acquires a plurality of scanned images by sequentially scanning the recording media output from the printing apparatus and having the images to be inspected recorded thereon, receives phase information of an image bearing member of the printing apparatus, detects, for each of the scanned images, a defect on the scanned image by comparing a pixel value of the reference image and a pixel value of the scanned image, and determines whether a defect has reproducibility based on positions of defects on the recording media calculated from the phase information.

Abstract: This disclosure provides an image processing apparatus that is connected to a printing apparatus, sequentially receives a plurality of recording media on which printing was performed by the printing apparatus, and inspects a quality of images formed on the recording media, wherein the image processing apparatus receives a reference image, acquires a plurality of scanned images by sequentially scanning the recording media output from the printing apparatus and having the images to be inspected recorded thereon, receives phase information of an image bearing member of the printing apparatus, detects, for each of the scanned images, a defect on the scanned image by comparing a pixel value of the reference image and a pixel value of the scanned image, and determines whether a defect has reproducibility based on positions of defects on the recording media calculated from the phase information.

Abstract: An image processing apparatus that converts input image data into halftone image data that a plurality of arranged nozzles ejecting ink can print and includes one or more hardware processors and one or more memories storing one or more programs configured to be executed by the one or more hardware processors, the one or more programs including instructions for correcting a pixel value of each pixel in the input image data in accordance with a characteristic of the nozzle and generating first halftone image data by performing halftone processing for a second frequency component whose frequency is lower than that of a first frequency component of frequency components corresponding to the corrected input image data. Here, the first halftone image data is data that is generated to be printed with first dots whose dot size causes adjacent dots to overlap.

Abstract: The image processing apparatus according to the present disclosure is an image processing apparatus converting input image data into halftone image data that a plurality of arranged nozzles ejecting ink can print and including: one or more hardware processors; and one or more memories storing one or more programs configured to be executed by the one or more hardware processors, the one or more programs including instructions for: correcting a pixel value of each pixel in the input image data in accordance with a characteristic of the nozzle; and generating first halftone image data by performing halftone processing for a second frequency component whose frequency is lower than that of a first frequency component of frequency components corresponding to the corrected input image data. Here, the first halftone image data is data that is generated to be printed with first dots whose dot size causes adjacent dots to overlap.

Abstract: An image processing apparatus configured to convert an input image into a halftone image to be output by a recording unit of an output apparatus includes a determination unit configured to determine a correction coefficient based on a characteristic of the recording unit for each of a plurality of pixels in the input image, a filter processing unit configured to perform filter processing on the correction coefficient using a low pass filter, a correction unit configured to correct a pixel value of each of the plurality of pixels in the input image based on the correction coefficient on which the filter processing has been performed, and a halftone processing unit configured to convert a corrected image output from the correction unit into the halftone image by dither processing. The low pass filter is configured to reduce a high-frequency component depending on the dither processing.

Abstract: An object of the technique of the present disclosure is to reduce the noise gap that appears at the boundary between light and dark portions in HDR composition of images captured in a time-division manner. The technique of the present disclosure comprises: an obtaining unit configured to obtain a plurality of captured images of an object captured under exposure conditions having different SN ratio characteristics; a combining unit configured to generate a high-dynamic range image by combining the plurality of captured images; a division unit configured to divide the generated high-dynamic range image into a plurality of regions; a derivation unit configured to derive a noise gap amount representing the difference in noise amount between the divided regions obtained by the division; and an updating unit configured to update at least one of the exposure conditions on the basis of the noise gap amount.

Abstract: An image processing apparatus configured to convert an input image into a halftone image to be output by a recording unit of an output apparatus includes a determination unit configured to determine a correction coefficient based on a characteristic of the recording unit for each of a plurality of pixels in the input image, a filter processing unit configured to perform filter processing on the correction coefficient using a low pass filter, a correction unit configured to correct a pixel value of each of the plurality of pixels in the input image based on the correction coefficient on which the filter processing has been performed, and a halftone processing unit configured to convert a corrected image output from the correction unit into the halftone image by dither processing. The low pass filter is configured to reduce a high-frequency component depending on the dither processing.

Abstract: An object of the technique of the present disclosure is to reduce the noise gap that appears at the boundary between light and dark portions in HDR composition of images captured in a time-division manner. The technique of the present disclosure comprises: an obtaining unit configured to obtain a plurality of captured images of an object captured under exposure conditions having different SN ratio characteristics; a combining unit configured to generate a high-dynamic range image by combining the plurality of captured images; a division unit configured to divide the generated high-dynamic range image into a plurality of regions; a derivation unit configured to derive a noise gap amount representing the difference in noise amount between the divided regions obtained by the division; and an updating unit configured to update at least one of the exposure conditions on the basis of the noise gap amount.

Abstract: The image processing apparatus of the present invention is an image processing apparatus that generates gloss intensity distribution image data indicating a gloss intensity distribution based on captured image data obtained by capturing an image of a subject having concavity/convexity irradiated by a surface light source. The image processing apparatus sets an area, in which specularly reflected light from the surface light source enters a planar mirror and which is the same size as or smaller than that of an area captured by an image capturing apparatus in a case where the planar mirror is arranged at substantially the same position as that of the subject, as a measurement area of the gloss intensity distribution based on surface light source position information indicating the position of the surface light source and image capturing position information indicating the position of the image capturing apparatus that captures an image of the subject.

Abstract: The image processing apparatus of the present invention is an image processing apparatus that generates gloss intensity distribution image data indicating a gloss intensity distribution based on captured image data obtained by capturing an image of a subject having concavity/convexity irradiated by a surface light source. The image processing apparatus sets an area, in which specularly reflected light from the surface light source enters a planar mirror and which is the same size as or smaller than that of an area captured by an image capturing apparatus in a case where the planar mirror is arranged at substantially the same position as that of the subject, as a measurement area of the gloss intensity distribution based on surface light source position information indicating the position of the surface light source and image capturing position information indicating the position of the image capturing apparatus that captures an image of the subject.

Abstract: Conventional calculation of light source data requires a high load and is unstable. An information processing device derives light source data which represents a state of a light source of an image represented by a captured image based on image capturing condition data at the time of capturing the image of a subject.

Abstract: Conventional calculation of light source data requires a high load and is unstable. An information processing device derives light source data which represents a state of a light source of an image represented by a captured image based on image capturing condition data at the time of capturing the image of a subject.

Abstract: An electron-emitting device according to the present invention, comprises: an insulating member having a top face, a side face and a recess portion formed between the top face and the side face; a cathode electrode which is disposed on the side face and has an electron emitting portion located in a boundary portion between the side face and the recess portion; and a gate electrode which is disposed on the top face and of which an edge faces the electron emitting portion, wherein the boundary portion in which the electron emitting portion is located has concavity and convexity in a direction parallel to the top face.