The present disclosure relates generally to data hiding for retail product packaging and other printed objects such as substrates. One embodiment embeds an information signal in a spot color for printing on various substrates. The spot color is screened, and overprinted with process color tint. The tint is modulated prior to overprinting with optimized signal tweaks. The optimization can include consideration of a detector spectral dependency (e.g., red and/or green illumination). Many other embodiments and combinations are described in the subject patent document.

A color chart for color selection to select a color patch of the closest color to a target color from among a plurality of the color patches, in which the color patch that represents colors of either an adjustment target color or a reference color that substitutes the adjustment target color is a target patch, a direction that represents a direction in which a color is to be adjusted from the target patch in the color chart for color selection is an adjustment direction, and the adjustment direction from the target patch is wider than the direction counter to the adjustment direction from the target patch.

A display includes a display unit, an image sensor that takes an image of a predetermined area and outputs the taken image, and a hardware processor that detects the marker in the taken image, generates differential color information between color data of the marker in the taken image and color data of the marker in the print image data, displays a virtual object which reproduces the print image data in the display unit, sets an object adjustment value for adjusting a color tone of the virtual object displayed on the display unit based on the differential color information, and calculates a print adjustment value for adjusting a color tone reproduced by the image forming apparatus based on the object adjustment value.

A color conversion look-up table generating device of the present invention includes a converting unit configured to convert an actual color material value of a target grid point in the color conversion look-up table and an actual color material value of a neighbor grid point of the target grid point into virtual color material values, and a correcting unit that corrects the actual color material value of the target grid point on the basis of a virtual color material amount of the target grid point and a virtual color material amount of the neighbor grid point, wherein the virtual color material value is an output value of a virtual color material that absorbs only light of spectral reflectance in each of divided blocks in a case in which spectral reflectance of the actual color material is divided into n (n is an integer of 3 or more) blocks.

In an example, processing apparatus includes an interface to receive input data comprising color data, a color mapping module to map at least one color of the input data to a print apparatus color space according to at least one mapping, and a preview module to generate a representation of a printed output of the print apparatus according to the mapping. The print apparatus color space may be defined based on print materials to be used by a print apparatus, wherein at least one print material comprises phosphorescent material. The preview module may generate a first image representing an externally illuminated printed output of the print apparatus, and a second image representing a phosphorescing printed output of the print apparatus in a low light environment.

A purpose of the present invention is to implement, by specifying a process target area, an image generation device which generates an image (video) from which an image quality improving effect can be recognized and a display device which displays the image. An image generation device (1000) includes a screen duplication unit (1), a mask area determination unit (2), a composition unit (3), and an image quality adjustment unit (4). The screen duplication unit (1) extracts and outputs at least a part of an image area of an input image as a process target image. The mask area determination unit (2) determines a mask area of the process target image and generates a mask image specifying the mask area. The image quality adjustment unit (4) performs predetermined image process to the mask area, which is determined by the mask area determination unit (2) in the process target image and outputs the image, to which the image process is performed, as an image after image quality adjustment. The composition unit (3) acquires a composited image in which the process target image, the mask image, and the image after the image quality adjustment are composited so that the process target image, the mask image, and the image after the image quality adjustment are displayed on a display screen.

An information processing apparatus includes at least one memory device that stores a set of instructions, and at least one processor that executes the set of instructions. The set of instructions includes instructions to acquire color data from an application, set a generation method for generating gray image data from color data by selecting a method from a group including at least a first generation method and a second generation method different from the first generation method, generate PDL data of gray image data based on the acquired color data and the set generation method, and transmit the generated PDL data to a printing apparatus.

An image processing apparatus includes an acquisition unit and a first generation unit. The acquisition unit acquires plural images of a single material with different backgrounds. The first generation unit generates an image of the single material without a background color by using the plural images.

An image processing apparatus includes a first selection unit configured to select an adjustment color, a print control unit configured to cause a printer to print a chart including a patch corresponding to the adjustment color selected and patches corresponding to respective neighboring colors of the adjustment color, a second selection unit configured to select a target color from the colors corresponding to the respective patches on the chart, a generation unit configured to generate a color conversion table to the used for converting a color to be printed by the printer, by using the adjustment color selected and the target color selected, and a determination unit configured to determine an arrangement of the patches to be included in the chart to be printed by the printer, based on a color value of the adjustment color selected.

A color verification system of an aspect of the present invention includes an information processing apparatus that generates a job and an image forming apparatus that forms a color image on a sheet on the basis of the job. The information processing apparatus includes a storage portion that stores: information of the image forming apparatus under management; and target information including a target profile set to the image forming apparatus. Furthermore, when a plurality of different target profiles is set to the image forming apparatus, the information processing apparatus includes a job generation portion that generates the job: including image data containing a plurality of color verification images associated with the plurality of target profiles, respectively; and including an output setting.