Update on the INCITS W1.1 Standard for Evaluating the Color Rendition of Printing Systems
نویسندگان
چکیده
The color rendition ad hoc team of INCITS W1.1 is working to address issues related to color and tone reproduction for printed output and its perceptual impact on color image quality. The scope of the work includes accuracy of specified colors with emphasis on memory colors, color gamut, and the effective use of tone levels, including issues related to contouring. The team has identified three sub-attributes of color rendition: 1) color quantization – defined as the ability to merge colors where needed, 2) color scale – defined as the ability to distinguish color where needed, and 3) color fidelity – defined as the ability to match colors. Visual definitions and descriptions of how these sub-attributes are perceived have been developed. The team is presently defining measurement methods for these, with the first of the sub-attributes under consideration being color quantization. This presentation will briefly describe the definitions and appearance of the proposed sub-attributes. The remainder of the discussion will focus on the progress to date of developing test targets and associated measurement methods to quantify the color quantization sub-attribute.
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