If a color component equals zero percent, there is no dot at this point and therefore no color. The tiny dots are of different sizes depending on the desired thickness of the color application. To produce an adequate image quality, industrial offset printing usually requires 300 dots per inch (dpi). The actual printing process is based on placing small, closely spaced dots which the human eye perceives as a color image once combined and viewed from a distance. That’s why the four printing colors cyan, magenta, yellow, and black - CMYK - are applied one after the other in industrial offset color printing. Paper is not transparent and therefore doesn’t allow light to pass through. This ensures a color-balanced reproduction on color monitors.ĭuring the printing process, however, white paper is usually printed on.
They are red, green, and blue and are used as part of the RGB color space. The eye is particularly sensitive to three light wavelengths. The use of colors for presenting on screen and in print follows the physical characteristics of the human eye.
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