An image formation apparatus includes an image bearing member on which an electrostatic latent image is formed and a developing agent bearing member configured to carry a developer used to develop the electrostatic latent image formed on the image bearing member. The image formation apparatus forms an image by using the electrostatic latent image formed on the image bearing member. The image formation apparatus further includes an obtaining unit configured to obtain the information about a rotation speed of the image bearing member and a rotation speed of the developing agent bearing member; a determination unit configured to determine, according to the obtained information, a color conversion table used to transfer and record the input image data; and an image formation unit configured to convert a signal of the input image data according to the determined color conversion table and form an image with the converted signal value.

A print data generator includes a storage storing processor-executable instructions causing a processor to perform a process to generate print data from original full-color data. The process includes when a hue value of a pixel is within a specific hue range for an emphasis color, setting a density value of a reference color of the pixel based on a value value of the pixel, and setting a density of the emphasis color of the pixel based on a saturation value of the pixel and a difference value between the hue value of the pixel and a hue value of the emphasis color, and when the hue value of the pixel is out of the specific hue range, setting the density value of the reference color based on a luminance value of the pixel derived from RGB data, arid setting the density value of the emphasis color to zero.

A color separation processing method includes: preparing one or a plurality of tables including a first color and one or a plurality of second colors obtained by mixing the first color with one or a plurality of added colors; selecting the table including the first color in accordance with a color sample and selecting the second color corresponding to the color sample from the selected table; and obtaining color separation values of the first color and the added color constituting the selected second color.

A printing system is disclosed. The printing system includes a color management unit having a common color engine (CCE) to map input colors matching one of more criteria into output colors having a single color component to generate Preserve-X colors and a color cache to store the Preserve-X colors. The Preserve-X colors include the corresponding pairs of input colors and output colors

Systems and methods of separating a digital image using a specified colour palette into a sequence of separation plates is disclosed. The method comprises receiving the digital image and the specified colour palette; setting a desired integer number of ink quantization levels, Q; determining a plurality of ink levels (0%, 100%, and evenly spaced intermediate levels there between when Q>0); combining all of the plurality of ink levels by Cartesian product for each of the plurality of printing inks forming a list of possible ink combinations; calculating the colour values for one or more composite colours by linear combination of the colour values of each possible combination weighted by the levels, for each pixel colour value in the digital image finding the potential colour separation combination colour value that is the closest to the pixel colour value, adding each of the printing ink-ink level pairs that resulted in the closest potential colour separation combination colour value to a final combination colour palette, and including each of the plurality of pixels associated with the pixel colour value on a separation plate logically associated with each of the printing inks that resulted in the closest potential colour separation combination colour value; ordering the printing ink, ink level pairs within the final combination colour palette; and returning the final combination colour palette and separation plates.

Systems and methods of efficiently creating colour separations for subsequent use in multi-stage printing processes to produce an acceptable facsimile of user-selected artwork on a substrate are disclosed. The method obtains an initial colour palette ((i.e. an ordered list of a plurality of printing inks) from an electronic rendering and extracts a final colour palette from the initial colour palette by clustering the plurality of unique colour values corresponding to the plurality of printing inks in the initial colour palette into discrete colour clusters. The method finds a centroid for each discrete colour cluster, creates a reduced colour set containing a plurality of colour values within the particularly-defined colour space, each colour value in the reduced colour set corresponding to the colour value representative of each found centroid, orders the plurality of colour values in the reduced colour set to form the final colour palette as an ordered list of a plurality of printing inks, and then produces colour separation plates based on the electronic rendering and final colour palette.

A suspended inkjet printing system includes: a pair of support beams extending across a media path; a mounting frame mounted between the support beams, a print head chassis mounted on the mounting frame, the print head chassis being actuable between at least a printing position and a maintenance position; and a plurality of print heads mounted on the print head chassis, each print head extending across the media path and spaced apart along the media path in a direction of media propagation. A plurality of projections extend from the print head chassis into engagement with the mounting frame, the projections controlling a height of the print head chassis relative to the media path.

The present disclosure provides a color correction method, including: in response to original color data of a pixel, converting the original color data into original color coordinates in an original color space; mapping the original color coordinates to a sampling point space to obtain a mapped point corresponding to the original color coordinates in the sampling point space, and determining, according to mapped coordinates of the mapped point, a plurality of reference point coordinates corresponding to the mapped coordinates; obtaining reference point addresses of the reference point coordinates, and simultaneously reading color data of the reference point coordinates according to the reference point addresses; and obtaining corrected color data of the pixel through an interpolation algorithm according to the color data of the reference point coordinates. The present disclosure further provides a Field Programmable Gate Array, a chip and a display device.

A system for capturing color images comprising an image sensor with an array of light sensitive photosites of a plurality of colors. Each color has its own spectral sensitivity. Colors with a substantially low color separation are assigned a substantially high density of pixels in the photosite array and colors with a substantially high color separation are assigned a substantially low density of pixels in the photosite array. A digital image signal processor is adapted to receive a raw mosaicked image from said image sensor when the image sensor is impacted with light, and to reconstruct a full color image from the raw image data. Optionally, the raw image data is demosaicked, a chroma denoiser is applied to the image data and the image data is converted to a specified color space, wherein application of the chroma denoiser and conversion to a specified color space are performed in any order.

An image processing apparatus includes one or more processors that are configured to obtain image data obtained by optically reading an original image, to obtain a fluorescence light emission amount obtained by optically detecting a fluorescent color material in the original image, to estimate, based on the obtained fluorescence light emission amount, a color component attributable to the fluorescent color material in the obtained image data, the color component attributable to the fluorescent color material including a color component of reflected light in the fluorescent color material and a color component caused by emission when the fluorescent color material transitions from an excited state to a ground state, to separate a color component attributable to a subtractive color mixture color material from the obtained image data by using the estimated color component attributable to the fluorescent color material, and to output image data obtained by the separation.