An image processing system capable of preventing resubmission of a scanned image from being required due to an undesired object which obstructs visibility. The image processing system includes a scanned image generation unit configured to read an original and generate a scanned image of the read original, and submits an image to a management server. A continuous pixel area which includes a plurality of pixels whose pixel values are higher than a predetermined density threshold value and has an area size equal to or larger than a predetermined value is identified from a scanned image. Whether or not the identified continuous pixel area is an area of an undesired object which obstructs visibility is determined. A continuous pixel area determined as the area of an undesired object is notified to a user before the scanned image is submitted to the management server.

An information processing apparatus includes a processor configured to: obtain characteristic values including smoothness and basis weight of a recording medium; and identify the type of the recording medium on the basis of the smoothness and the basis weight.

An image reading apparatus includes a transparent member, a conveyance unit, a reading unit reading an image information through the transparent member from the sheet conveyed by the conveyance unit, and a guide member provided upstream of a reading position where the reading unit reads the image information from the sheet with respect to a sheet conveyance direction. The guide member includes a sheet-like sheet member having elasticity. A leading end of a downstream side of the guide member in the sheet conveyance direction is a folded portion formed by folding back the sheet member.

An inspection apparatus capable of preventing lowering of position matching accuracy. Control points are positioned in a lattice form on a scanned image of a print product, for performing position matching between the scanned image and a reference image registered in advance. An approximate line of a column and an approximate line of a row intersecting the approximate line of the column are calculated based on two or more control points positioned in the same column and the same row as one control point. One control point determined to be corrected is corrected based on the respective approximate lines of the column and the row. The print product is inspected by comparing a position-matched scanned image generated based on the control points including position-corrected control points and position-updated control points, and the reference image.

An image processing apparatus extracts an image area corresponding to a margin area of a chart for evaluation from a scanned image obtained by scanning a printed material on which the chart is printed. The image processing apparatus evaluates the printed material based on, in a case when a printing medium used for the printing is determined to be a printing medium having a specific characteristic based on the image area corresponding to the margin area, the scanned image from which influence based on the specific characteristic is decreased.

An image forming apparatus includes a recording medium accommodation portion that accommodates a recording medium, a storage portion that stores information about the recording medium that is accommodated in the recording medium accommodation portion and previously printed, a sensing portion that senses opening and closing of the recording medium accommodation portion, a comparison portion that compares currently set setting information about the recording medium with the information about the recording medium stored in the storage portion on a condition that the sensing portion senses that the recording medium accommodation portion is not open between previous printing and current printing, and an output portion that outputs a comparison result of the comparison portion.

An image forming apparatus includes: a first hardware processor that receives setting of a type of a recording medium by a user; a detector that detects a type determination parameter for a recording medium including a recording medium for which setting of a type has been received by the first hardware processor; a second hardware processor that determines a type of a recording medium based on a detection result of the detector; an image former that forms an image on the recording medium; and a third hardware processor that transmits, to an external device, at least two pieces of information of information regarding the type received, information regarding the type determined by the second hardware processor, or information regarding matching or mismatching of the type received and the type determined with respect to the recording medium for which setting of a type has been received by the first hardware processor.

An image forming system includes circuitry. The circuitry reads an inspection target image from a printed matter. The circuitry generates a difference image between the inspection target image and a comparison target image. The circuitry performs processing on the difference image using a threshold value to perform determination as to whether a defect of the printed matter is present. The circuitry calculates a threshold value for show-through at which a show-through of the printed matter is not determined as the defect of the printed matter among multiple threshold values based on a result of the determination.

A reading apparatus includes a reading device and circuitry. The reading device reads a recording medium in a direction intersecting a conveyance direction of the recording medium. The circuitry detects a reference image for cutting processing of the recording medium, based on read information read by the reading device.

An image processing apparatus includes a control unit configured to control execution of monochromatic calibration and multi-color calibration, and a registration unit configured to register paper types of paper to be used at time of execution of the monochromatic calibration, a monochromatic target value set for each of the paper types used for the monochromatic calibration, paper types of paper to be used at time of execution of multi-color calibration, and a multi-color target value set for each of the paper types used for the multi-color calibration. The image processing apparatus executes the multi-color calibration, after executing the monochromatic calibration, via the control unit by using paper of a paper type selected from common paper types out of the registered paper types and the monochromatic target value and the multi-color target value set for the selected paper type.