A print control apparatus includes: a job reception unit that receives a print job in which a plurality of different print conditions are capable of being set; a setting reception unit that receives setting of a single print condition among the plurality of print conditions; a print execution unit that prints an image based on the print job as a result of executing the print job in accordance with a single print condition. The print execution unit, when the print condition set in the setting reception unit is changed during execution of the print job, prints an image based on the print job executed under the print condition subsequent to the change immediately after an image based on the print job executed under the print condition prior to the change.

In a pixel of a part where two objects are superimposed, pixel values of the objects are compared to thereby set an attribute of the pixel to an attribute of one of the objects.

A method of enhancing quality of an image object included in a compound document, and an apparatus for performing the method are provided. The method includes receiving a request to print a compound document including an image object, merging parts corresponding to the image object from among data corresponding to the compound document and enhancing the quality of the image object, and encoding data corresponding to the compound document by using a printer control language (PCL) and outputting the encoded data.

An image processing apparatus sets a threshold value matrix for each of multiple color materials, and uses the set threshold value matrix to acquire a first threshold value. On the other hand, the image processing apparatus sets reference data on the basis of multivalued data of that color material. Then, the image processing apparatus calculates a second threshold value matrix by performing a predetermined process on the first threshold value on the basis of the reference data for that color material. Further, by comparing the second threshold value with the multivalued data, quantization data for printing a dot is generated. When doing this, the threshold value matrix and the reference data for that color material are set so as to make the graininess of a dot pattern of that color material lower than the graininess of a mixed color dot pattern obtained by mixing dot patterns of the respective multiple color materials.

An image forming system includes: a background member of a black color provided at an opposite side to a reading unit with respect to a conveyance path; and at least one processor configured to form a test chart on a first printing medium based on RIP data corresponding to the test chart, and inspect an inspection target image formed on a second printing medium by an image forming apparatus based on first image data obtained by reading the inspection target image formed on the second printing medium and the RIP data corresponding to the inspection target image. The test chart includes light patch images and dark patch images surrounding the light patch images, and each one of the light patch images and the dark patch images has different density.

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 processing apparatus includes a data input unit, an operation panel, a storage unit, and a control unit. The operation panel accepts a registration of a margin image and a setting of an emphasis region within the margin image. The storage unit stores data for emphasis including a registered margin image and positional data. The registered margin image is the margin image that has been registered, and the positional data indicates a position of the emphasis region in the registered margin image. When the control unit determines that the registered margin image is included in the page image data, the control unit performs an emphasis process on an image of a corresponding region whose position at the registered margin image included in the page image data is identical to a position of the emphasis region in the registered margin image included in the stored data for emphasis.

An image processing system includes a processor configured to generate stereoscopic image data including information representing a layer thickness of an image forming material adhered to a recording medium based on image data of a printed image and cause a display unit to display a preview image of a printed matter based on the stereoscopic image data, in which the information representing the layer thickness of the image forming material includes information representing an aspect in which an edge of a swelling portion of the image forming material is inclined toward a recording medium surface or an aspect in which the edge of the swelling portion of the image forming material is rounded.

An image forming apparatus includes an image forming portion, an adjustment processing portion, an acquisition processing portion, and a setting processing portion. The image forming portion forms an image using toner. During execution of an image forming process using the image forming portion, the adjustment processing portion uses the toner to adjust the image quality of an output image output by the image forming process. The acquisition processing portion acquires variation amount information related to the amount of variation in a predetermined state value related to the image forming portion caused by a start of the image forming process. The setting processing portion sets the frequency of adjustment of the image quality of the output image by the adjustment processing portion, based on the variation amount information acquired by the acquisition processing portion.

An image forming apparatus includes a forming unit, a storage unit, a correction unit, a measurement unit, and a changing unit. The forming unit forms an image. The storage unit stores correction data for correcting density irregularity in each of a plurality of regions obtained through division in a main scanning direction of the image formed by the forming unit. The correction unit corrects a density of the image formed by the forming unit for each of the plurality of regions based on the correction data stored in the storage unit. The measurement unit measures an image formation density by the forming unit in association with the correction by the correction unit. The changing unit changes the image formation density by the forming unit with a uniform change amount in the plurality of regions so that the image formation density measured by the measurement unit approaches a predetermined target density.