A method and computer device for determining a spatial luminance distribution over at least one image of a scene illuminated by at least one illuminant (121) are provided. The image comprises RGB channels. A linear combination of the RGB channels is applied to determine the luminance distribution. The linear combination has a set of coefficients comprising a respective coefficient for each of the RGB channels. The coefficients are determined by identifying a spectral power distribution, SPD, of the at least one illuminant and performing a search to determine values of the set of coefficients that minimise a spectral mismatch between: a) the identified SPD weighted by the linear combination; and b) the identified SPD weighted by a luminosity function.

One embodiment, in the form of a method, includes capturing at least one image with an imaging device of a machine vision device. The at least one image is captured within an environment within which the machine vision device is deployed. This method then queries a color scheme model based on the captured at least one image to identify a color scheme to utilize within the machine vision device and may subsequently implement the identified color scheme on the machine vision device for processing images captured by the imaging device.

In some examples, a computing device includes a first display device coupled to a second display device by hinges. After determining that the computing device has been moved from a first orientation to a second orientation, the computing device may receive ambient light data from ambient light sensors associated with the first and second display device, temperature data from temperature sensors associated with the first and second display device, and color data from color sensors associated with the first and second display device. After determining that power is being received from an external power source or that the user prefers the display devices may be color matched, the computing device may perform one or more color adjustments based on the ambient light data, the temperature data, and the color data, thereby reducing a difference in a perceived color between the first display device and the second display device.

To provide a device, system, and program with which it is possible for photometric information or colorimetric information corresponding to an international industry standard to be accurately measured in a simple manner. In one embodiment, a measurement apparatus (1) includes: an imaging unit (11) that acquires image data of an image; converters (141, 142) that use image data shooting information to convert the image data into data including photometric information or colorimetric information; and an output unit (16) that outputs the photometric information or the colorimetric information obtained by the converters.

A method, system, and computer program product for applying a perceptually uniform color space to image color values within a captured image data. The method includes identifying, via a processor of an image capturing device, a perceptually uniform color space that includes only real colors identified within a plurality of real-world images. The method further includes applying, via the processor, the perceptually uniform color space to a color processing stage of an image processing pipeline. The method further includes in response to receiving, at the image capturing device, image data including image color values associated with a primary color space, converting, via the processor, the image color values to the perceptually uniform color space to generate image data having more perceptual uniformity for colors that are frequent in the real world.

Provided is a change degree deriving device including a receiving unit that receives an image obtained by capturing a known color body and an object while focusing on the object, the known color body including plural of color samples, each of which has a known color numerical value, and a detection image, and a detecting unit that detects a focus deviation of the color samples in the image, based on the detection image.

Products, such as branding labels and currency, fabricated to include an optical security element. The optical security assembly may include a carrier film or substrate. An image element, e.g., a printed ink layer, is provided on a first surface of the carrier film/substrate, and the optical security assembly further includes an array or plurality of micro lenses on a second surface of the carrier film/substrate opposite the image element. In order to make the registration and print requirements easier, a mask is provided between the printed ink layer to define color pixels, and the printed ink layer is provided in the form of color blocks in a checkboard pattern with each block aligned with a portion of the mask and a subset of the holes or openings that define the viewable color pixels.

An estimated image data calculator is configured to calculate, as estimated image data, for each of image data of respective colors outputted from an imaging element, on the basis of a pixel value of a first pixel on one of two lines adjacent to each other in the image data, and a pixel value of a second pixel on the other of the two lines and adjacent to the first pixel, image data of a non-reading region between a reading region in a document corresponding to the one of the two lines and a reading region in the document corresponding to the other of the two lines. A pixel value correcting unit is configured to correct at least one of the pixel value of the first pixel and the pixel value of the second pixel on the basis of the estimated image data.

A method includes obtaining first color information for each of a plurality of first samples of a first target color with a color measurement device connected to a computing device including a display. A digital color image of at least one first target color is displayed on the display. An offset value for each first target color is determined such that the digital color image of each first target color matches the corresponding first target color on each of the first samples. A second sample including a second target color is scanned to obtain second color information. A processor of the computing device determines, using the offset values of the first target colors, an interpolated offset for the display such that the digital image of the second target color matches the second tar get color.

A printing processor receives print job instructions to combine variable printing information and fixed data to build a print job to be printed using a printing engine. The variable printing information is unrasterized-type data. The printing processor evaluates the print job instructions to determine whether the configuration of the variable printing information is compatible with configurations of different fixed data forms (the fixed data forms are rasterized-type data). The graphic user interface displays menu selections of only the fixed data forms determined to be compatible with the configuration of the variable printing information.