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“Typical matrix consists of a digital camera located on the same plane of cells, which respond only to the brightness, creating a monochrome image. To obtain information about color, Kodak engineer Bruce Bayer 20 years ago suggested a filter in front of each cell one of three colors - green, red and blue, which add up to the desired shade. This technology is used to this day. To each cell with red and blue filters for two-and green, as this color provides basic information about the brightness.

After digitizing the picture consists of pixels of red, green and blue. Work directly intermediate image is unusable. To each pixel of the output was a natural shade (ie, includes all three color components), the camera's processor, or RAW-converter summarize color of adjacent pixels, which uses a sophisticated algorithm to color interpolation.

Depending on the manufacturer and the specific model of the CTF, RAW-file may contain information as to the interpolation and after (until the final stage of processing). Most modern digital cameras use the first approach, as RAW conversion software almost always offer more advanced algorithms. In addition, they are constantly improving, and the processor can change the camera, buying a new one. Improving intrachamber JPEG algorithms developed in parallel with the improvement of the matrices. That it often determines the advantages of new models to their predecessors - for example, on the Nikon D40 DSLR D70.

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