A color adjustment apparatus includes a processor configured to: acquire desired color measurement value information about a target display by inputting a medium color measurement value of a target printing medium and spectral distribution characteristics of a specific color on the target display to a color measurement value calculation model that has been trained, using learning data including a combination of a medium color measurement value obtained by measuring a specific color on a printing medium, display color measurement value information indicating a display color measurement value obtained by measuring the specific color on a display that has been adjusted to be displayed as a color equivalent to the specific color on the printing medium, and spectral distribution characteristics of the specific color on the display before the adjustment is performed, based on the medium color measurement value of the printing medium and the spectral distribution characteristics of the display, to output the desired color measurement value information, which indicates the display color measurement value obtained when the specific color on the display is displayed as the color equivalent to the specific color on the printing medium; and adjust, based on the desired color measurement value information about the target display, a color profile of the target display.

An image forming system executes determination processing with an intensity of an image editing process being a first intensity and a determination threshold being a first value and does not execute the determination processing with the intensity of the image editing process being the first intensity and the determination threshold being a second value. The system executes the determination processing with the intensity of the image editing process being a second intensity greater than the first intensity and the determination threshold being the first value and does not execute the determination processing with the intensity of the image editing process being the second intensity and the determination threshold being the second value.

An image forming apparatus is provided with a storage portion that stores a plurality of pieces of schedule information, an image reading portion that generates image data of an original document including a plurality of description fields, a printing portion, and a control portion that recognizes a plurality of description field regions corresponding to the plurality of description fields, respectively, recognizes in-field information that is included in each of the plurality of description field regions in association with a date borne by a corresponding one of the plurality of description fields, extracts one of the plurality of pieces of schedule information and a piece of the in-field information which correspond to a common date as first subject information and second subject information, respectively, and performs control so that an update information image is printed.

According to one embodiment, an image processing apparatus includes a scanner, a memory, and a processor. The scanner acquires a read image of an original document. The memory stores the read image of the original document that is acquired by the scanner. The processor detects a highlighted region including a region that is highlighted with a chromatic color in the read image of the original document which is stored in the memory and a circled region including a region circled by the chromatic color, and classifies the highlighted region as a region for first processing and classifies the circled region as a region for second processing.

Provided are image forming apparatuses, non-transitory recording media each storing a computer-readable program for obtaining paper information, and paper-information obtaining methods. An image forming apparatus includes at least one reflection-type optical sensor that measures a sheet in a sheet path, and at least one backing configured to change optical density of a backing face which is to be placed under a sheet in the sheet path for a measurement of the sheet with each of the at least one reflection-type optical sensor. A hardware processor in a system including the image forming apparatus, causes the at least one reflection-type optical sensor to take measurements of a sheet in the sheet path by using different optical densities of the backing face, and calculates paper weight, which is weight of paper per unit area, of the sheet on the basis of the result of the measurements.

An image forming apparatus and method thereof are provided. The image forming apparatus includes: a scanner configured to generate a scan image by scanning a document, a processor configured to generate color information of a medium representing content of the document using a predetermined area of the scan image, and to gamma-correct color of an entire area of the scan image based on the color information, and a printer configured to print the gamma-corrected scan image.

Color values as a function of position within a painting may be determined by acquiring a plurality of sets of images of the painting. Each set of images may correspond to a different region within the painting. Each image in a set of images may be acquired using a different lighting condition. An optical system comprising a telecentric lens may be used to acquire each image. Within a set of images, corresponding lightness values of pixels may be compared. Lightness values varying from other corresponding lightness values more than a threshold amount may be eliminated. The non-eliminated lightness values for a pixel may be used to generate a processed value for the pixel. The processed values for each pixel representing an imaged region may be combined into a single image. Eliminating lightness values may remove specular highlights and/or shadows. Each of the single images corresponding to each set of images may be registered together to generate a color map image of the painting. The generated color map image may be used to correct color data collected by laser scanning the painting. A 3D printer may, for example, use the corrected laser color data in combination with an elevation map of the painting to produce a faithful reproduction of the painting.

An inkjet printer forms ink dots of a first ink and ink dots of a second ink on a recording medium. The inkjet printer performs first screen processing on image data of the second ink to generate a first dot group including the ink dots of the second ink, and performs second screen processing on image data of the second ink to generate a second dot group including the ink dots of the second ink. The inkjet printer forms a first printing layer, on the recording medium, of the ink dots of the first ink and the ink dots of the first dot group, and forms a second printing layer of the ink dots of the second ink, above or below the first printing layer.

An image processing apparatus has a first color conversion unit that converts a signal value at an achromatic grid point in a first color space among achromatic grid points in a color space, the signal value being closer to white than a first predetermined signal value, into a signal value that is even closer to white, and a second color conversion unit that converts a signal value at a grid point among grid points in the color space, the signal value being closer to white than a second predetermined signal value, into white are provided. The image processing apparatus converts a signal value of an input image using the first color conversion unit, and thereafter converting the signal value using the second color conversion unit.

An image forming apparatus includes an image forming section to form a correction pattern, a reading unit to read the pattern and generate first data, a color converter to convert the first data into second data, a memory to store density conversion data for a recording medium, a determiner to determine whether the memory contains the conversion data for the recording medium the pattern is formed, an acquisition unit to acquire spectral measured by an external colorimeter the memory does not contain the conversion data, a first density converter to convert the spectral data into density data, a density conversion data generator to correlate the second data and the density data and generate the conversion data, a second density converter to convert the second data into the density data using the conversion data, and a correction curve generator to generate correction curve data based on the density data.