Technical analysis: color separation and digitization

What does digital separation mean?

When copying a photo by printing, the photo must be divided into four basic colors: yellow, magenta, cyan, and black. The early method was to use a plate-making camera to record the images of each color on the film separately. Later, the scanner was used to linearly decompose the image and scan A computer is a computer peripheral that can capture images.

In recent years, the advanced platform scanners use sophisticated image sensors to directly scan the image into the lens to avoid image distortion caused by glass reflection; plus anti-reflective internal design, virtual drum scanning and each scanning channel With 16,000 color levels, the light is kept clear and detailed under strict control and the colors are true and bright; even if the color of the original image is extremely dark, its photometric sensor function will not increase the noise of the image while scanning the best effect. In addition, the manuscript will be automatically transported, scanned and output, which reduces the pre-processing time and greatly improves the production efficiency. The built-in light box and preset auxiliary frame line are convenient for the user to accurately place the manuscript before scanning, saving after scanning. Time adjusted by software.

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