Abstract: An information processing apparatus is communicably connected to one or more image forming apparatuses each including: an image forming device that forms an image on a recording medium; an image reading device that reads the image to obtain read image data; and an image forming controller that executes a first inspection and detects in the read image data an image defect corresponding to a predetermined inspection item at a first cycle, the information processing apparatus including: a processing controller that: acquires inspection source data based on the read image data obtained from at least one of the image forming apparatuses, and executes a second inspection to inspect the inspection source data.

Abstract: An information processing device includes a processor holding restoration information that associates (i) defects predicted to occur in an inspection image read from a recording medium, (ii) a restoration operation for preventing each of the defects from occurring, and (iii) an executing device that executes the restoration operation, with one another. The processor extracts, from the restoration information, the restoration operation associated with one of the defects designated on a display screen displaying the inspection image read from the recording medium, and instructs the executing device to execute the extracted restoration operation.

Abstract: An information processing apparatus is communicably connected to one or more image forming apparatuses each including: an image forming device that forms an image on a recording medium; an image reading device that reads the image to obtain read image data; and an image forming controller that executes a first inspection and detects in the read image data an image defect corresponding to a predetermined inspection item at a first cycle, the information processing apparatus including: a processing controller that: acquires inspection source data based on the read image data obtained from at least one of the image forming apparatuses, and executes a second inspection to inspect the inspection source data.

Abstract: An information processing device includes a processor holding restoration information that associates (i) defects predicted to occur in an inspection image read from a recording medium, (ii) a restoration operation for preventing each of the defects from occurring, and (iii) an executing device that executes the restoration operation, with one another. The processor extracts, from the restoration information, the restoration operation associated with one of the defects designated on a display screen displaying the inspection image read from the recording medium, and instructs the executing device to execute the extracted restoration operation.

Abstract: An image inspection device which makes it easy to recognize a defect in an image formed on a recording medium, through an image display. The image inspection device includes an inspection report creating section for creating an inspection report which gives an inspection image read from a recording medium a mark indicating a defect generated in the inspection image. When the defect has a directional component, the inspection report creating section creates an inspection report which gives a mark indicating the direction of extension of the defect at a position where the defect has been generated in the inspection image.

Abstract: An image forming apparatus includes: an image former that divides a first image into a plurality of second images and forms the second images on an image carrier; a test image reader that reads the second images formed on the image carrier; and a hardware processor that: selects a number of the second images from among the second images read by the test image reader, the number of the second images being smaller than a number of division of the first image; combines the selected second images into a combined image; and detects an image defect in the combined image.

Abstract: An image inspection apparatus includes a tester and an image storage processor. The tester inspects image data for an abnormality and, in a case where the tester detected an abnormality, further detects a kind of the abnormality. The image data is generated by reading a surface of a sheet on which an image is formed by an image forming apparatus. The image storage processor determines a compression condition depending on whether or not the tester detected an abnormality and depending on the kind of the abnormality, performs compression processing of the image data under the compression condition, and generates data to be stored.

Abstract: A learning apparatus includes an image defect detector that detects an image defect on a sheet on which an image has been formed, a likelihood calculator that calculates a likelihood that an image forming member associated with the image formation is a generation factor of the image defect, a predictor that predicts a change in the image defect generated by the image forming member as a generation factor; and a learning unit that causes the predictor to perform learning using the detected image defect as learning data, wherein the learning unit changes, according to the likelihood, a learning mode of the image defect to be used as the learning data.

Abstract: An image processing apparatus includes a hardware processor that: divides each of pixels of image data in units of blocks, and compresses the image data using a maximum value and a minimum value of a pixel value in each of the divided blocks; extracts a maximum value and a minimum value of each of the blocks from the compressed image data; detects an edge of an object on the basis of at least one of the extracted maximum value and the minimum value of each of the blocks; performs edge correction of the compressed image data by increasing or decreasing the maximum value and the minimum value of each of the blocks within a correction range from the detected edge; and decompresses the image data that have undergone edge correction, using the maximum value and the minimum value of each of the blocks.

Abstract: An image inspection apparatus includes a tester and an image storage processor. The tester inspects image data for an abnormality and, in a case where the tester detected an abnormality, further detects a kind of the abnormality. The image data is generated by reading a surface of a sheet on which an image is formed by an image forming apparatus. The image storage processor determines a compression condition depending on whether or not the tester detected an abnormality and depending on the kind of the abnormality, performs compression processing of the image data under the compression condition, and generates data to be stored.

Abstract: An image processing apparatus including a contour extraction section which extracts a contour pixel of an object from pixels in image data that has tone values of a plurality of colors for each of the pixels; and a contour processing section which executes thinning processing of adjusting a tone value of an object color of the object and trapping processing of adjusting a tone value of a background color among tone values of colors in the contour pixel of the object which is extracted by the contour extraction section or in a contour pixel of the background of the object, wherein the contour processing section links an adjustment amount of the tone value of the background color by the trapping processing to an adjustment amount of the tone value of the object color by the thinning processing.

Abstract: An image processing apparatus includes a hardware processor that: divides each of pixels of image data in units of blocks, and compresses the image data using a maximum value and a minimum value of a pixel value in each of the divided blocks; extracts a maximum value and a minimum value of each of the blocks from the compressed image data; detects an edge of an object on the basis of at least one of the extracted maximum value and the minimum value of each of the blocks; performs edge correction of the compressed image data by increasing or decreasing the maximum value and the minimum value of each of the blocks within a correction range from the detected edge; and decompresses the image data that have undergone edge correction, using the maximum value and the minimum value of each of the blocks.

Abstract: An image forming device includes: a rasterizing section, a resolution converting section and a thinning section. The rasterizing section generates, by rasterization, image data having any one of standard resolution, resolution higher than the standard resolution and resolution lower than the standard resolution. The resolution converting section converts the resolution upon rasterization for the generated image data having the higher or lower resolution than the standard resolution into the standard resolution. The thinning section thins the image data having the standard resolution. When thinning the image data of which the resolution is converted higher than upon rasterization in the resolution converting section, the thinning section adjusts thinning strength to become larger upon thinning than when thinning the image data of which the resolution upon rasterization is kept as it is.

Abstract: An image processing apparatus including a contour extraction section which extracts a contour pixel of an object from pixels in image data that has tone values of a plurality of colors for each of the pixels; and a contour processing section which executes thinning processing of adjusting a tone value of an object color of the object and trapping processing of adjusting a tone value of a background color among tone values of colors in the contour pixel of the object which is extracted by the contour extraction section or in a contour pixel of the background of the object, wherein the contour processing section links an adjustment amount of the tone value of the background color by the trapping processing to an adjustment amount of the tone value of the object color by the thinning processing.

Abstract: An image processing apparatus includes a contour extracting unit, a contour processing unit, a dithering unit and a binarizing unit. The contour extracting unit extracts a contour pixel forming a contour part from pixels of image data having multiple gradation values. The contour processing unit performs adjustment to reduce a gradation value of the contour pixel extracted by the contour extracting unit. The dithering unit binarizes, by using a blue noise dither matrix, the gradation value of the contour pixel subjected to the adjustment by the contour processing unit. The binarizing unit binarizes, of the pixels of the image data, a gradation value of a non-contour pixel which is other than the contour pixel.

Abstract: An image processing apparatus includes a contour extracting unit, a contour processing unit, a dithering unit and a binarizing unit. The contour extracting unit extracts a contour pixel forming a contour part from pixels of image data having multiple gradation values. The contour processing unit performs adjustment to reduce a gradation value of the contour pixel extracted by the contour extracting unit. The dithering unit binarizes, by using a blue noise dither matrix, the gradation value of the contour pixel subjected to the adjustment by the contour processing unit. The binarizing unit binarizes, of the pixels of the image data, a gradation value of a non-contour pixel which is other than the contour pixel.

Abstract: Disclosed is an image forming system, including: a conveying unit configured to convey recording paper; an image forming unit configured to print an image on the recording paper; an image reading unit configured to optically read the recording paper and to obtain a read image; and a correction control unit configured to control an execution of a test operation in which a test pattern including one or more thin lines are printed on the recording paper by the image forming unit and in which the test pattern is read by the image reading unit, to collect information indicting operation state of each unit in the execution of the test operation, to evaluate the thin lines in the read image obtained in the test operation in consideration of the collected information and to carry out a correction relating to printing of a specified thin line.

Abstract: An image processing apparatus includes: an image generating section to generate an image having a gradation value for each pixel by a rasterizing process; and a position correcting section to correct a position of a certain region of the image on a pixel basis. The image generating section generates the image including a line image by the rasterizing process, so that a line width of the line image is adjusted to be equal to or more than twice a minimum line width which can be generated by the rasterizing process.

Abstract: Disclosed is an image forming system, including: a conveying unit configured to convey recording paper; an image forming unit configured to print an image on the recording paper; an image reading unit configured to optically read the recording paper and to obtain a read image; and a correction control unit configured to control an execution of a test operation in which a test pattern including one or more thin lines are printed on the recording paper by the image forming unit and in which the test pattern is read by the image reading unit, to collect information indicting operation state of each unit in the execution of the test operation, to evaluate the thin lines in the read image obtained in the test operation in consideration of the collected information and to carry out a correction relating to printing of a specified thin line.

Abstract: Provided is an image processing device including: an outline detection unit which analyzes image data to detect an outer edge pixel forming the outline of image, and to determine an edge direction of the outer edge pixel; a thinning unit which processes thinning by reducing a pixel value of the outer edge pixel; and an outline adjusting unit. The outline adjusting unit determines a correction value of front end fading to be adopted to the outer edge pixel, depending on sheet-feeding direction when the image data is printed and the edge direction of the outer edge pixel; reduces the correction value of front end fading, depending on the ratio of reduction by the thinning of the pixel value of the outer edge pixel; and corrects the front end fading by adding the reduced correction value to the pixel value of the outer edge pixel.