Differences Between The Digital And The Film Camera Part 11

Color balance and color saturation

Thus, the image created by any camera, is unique. It implements the balance of colors and the saturation (as which the vendor has considered as the best). Some vendors prefer to add warm (pinkish) colors, others, on the contrary, prefer cold (bluish). The third select a neutral, realistic saturation for accurate transmission of colors. (The vendor selects colors and saturation from each model on the basis of the assumptions of what colors and shades will be pleasant to the average buyer more. Such choice rarely happens to be casual; more often it is based on a basis of the selected corporate design).

Example of color saturation: warm (pinkish) colors Moreover, thanks to one or several DSP together with remaining logic, the camera combines tinctures of photographing with the analysis of type of the image. (Instead of whether the picture with a considerable quantity of blue color like the sky is, but the beige unit is not very casual) thus the manual adjustments of the photographer set through the interface of an operating system of the camera also are considered.

If the camera produces unnecessary noise, or its electronic lock leads to hazing appearance the special algorithm (set by the vendor) for performance of necessary corrections will be used. The similar image regulates sharpness/softness of the image; in advance given balance white etc. the example of a color saturation is used: cold (bluish) colors at this stage of handling of the image also exist the considerable differences between numeral cameras from different vendors.

As soon as the image will transit through DSP, the camera processor will transform a data stream to the image file. Normally photo meta data are attached to this file (value of a diaphragm, speed of a lock, balance white, exposure correction, flashout switching-on, time/date etc.) also If the file doesn’t register in formats RAW or TIFF, it is compressed according to the selected photographer compression ratio (it is normally possible to specify high, average or low compression) and logic of the camera.

Algorithms of compression in the camera try to observe balance between file size, processing rate and image quality. After that the image registers or in the built in storage (as a rule, in inexpensive numeral cameras), or on a removable card or another device (such way is used in the majority of cameras).

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