CMYK Printers use CMYK – representing the colors, cyan, magenta, yellow and black inks, when printing 4-color process work. These are called subtractive colors, as combining them all gives the color black. Subtracting one or more of these colors will yield any other color. When combined in various percentages, these four inks will create an entire spectrum of colors, including those used in col...

The production of a printed product involves three stages: prepress, the printing process (press) itself, and finishing (post press). There are various types of equipments (printers, scanners) and various qualities image are present in the market. These give different color rendering each time during reproduction. So, a color key tool has been developed keeping Color Management Scheme (CMS) in ...

The digital color printing process can be described by the color reproduction characteristics (CRC) function that maps the input color to the output color. The CRC map is high dimensional in that there are potentially high number of output colors that a digital color printing process can reproduced. To maintain color consistency, it is desirable to have the CRC to match the desired CRC map at a...

Recent color printing technologies based on the principle of revealing colors on pre-functionalized achromatic supports by laser irradiation offer advanced functionalities, especially for security applications. However, for such technologies, the color prediction is challenging, compared to classic ink-transfer printing systems. The spectral properties of the coloring materials modified by the ...

In printing, halftoning algorithms are applied in order to reproduce a continuous-tone image by a binary printing system. The image is transformed into a bitmap composed of dots varying in size and/or frequency. Nevertheless, this causes that the sparse dots found in light shades of cyan (C) and magenta (M) appear undesirably noticeable against white substrate. The solution is to apply light cy...

This paper proposes and compares different methods of representing the primary color tone reproduction curves (TRC) for the stabilization control in a color xerographic printing process. TRC stabilization is vital in maintaining high consistency in color printout. Colors are typically represented by a 3-dimensional representation such as the CIELAB or CIEXYZ colorspaces. For stabilization contr...

Recently, the use of color image data has been growing fast in the area of image processing.1–7 To express natural color in conventional low-cost color devices, the color image should be quantized for monitoring and dithered for printing. A video monitor displays a color image by modulating the intensity of three primary colors (red, green, and blue) at each pixel of the color image. In a digit...

Abstract As 3D printing becomes an increasingly popular technology, knowledge of the processes employed by a printer becomes more important. In this paper, one particular printer, the Zcorp Spectrum Z510, is studied in terms of its color production. Two approaches to a spectral model are evaluated in terms of their ability to predict output colors of the printer based on input RGB values. The m...

In this study, we report poly(1H-thieno[3,4-d]imidazol-2(3H)-one) (pTIO) derivatives for an electrochromic (EC) type e-paper and its novel printing fabrication process. pTIO is a kind of conductive polymer (CP) s which are known as one of the EC materials. The electrochromism of pTIO is unique, because its color in doped state is almost transparent (pale gray). A transparent state is required t...