Digital Imaging: RGB or CMYK?

Digital imaging is possible with RGB or CMYK; through this article let us think about mode which is more appropriate in digital imaging work.In digital imaging separate colors are called as channels, hence RGB and CMYK modes have three and four channels respectively. It practically means that a 30Mb file in RGB might be a 40Mb file in CMYK. In Photoshop work, a considerable amount of modification
?can be done on the individual channels. Important aspect in this article is look at favorite mode in Photoshop applications.The important question is whether we should work in Red, Green, Blue mode (RGB) or Cyan, Magenta, Yellow, Black (CMYB) mode?The answer to this question is most definitely in RGB mode and can be justified with the following reasons.1. It is fact that all the images are originally made of Red, Green and Blue combination.2. Basically all the scanning works will be performed in RGB mode as scanner will work in RGB mode. If in any case CMYK is offered as option, this is possible after the scanner has done the conversion.3. Generally all the digital images are created in RGB mode.4. Even though desktop inkjet printers use CMYK inks, these are basically RGB devices which accept an RGB file which will then convert to CMYK mode for printing application. If we send a CMYK file to such type of printer, firstly it will convert it to RGB and again it will convert back to CMYK.5. A wider range of color spectrum is possible with RGB than CMYK as RGB are primary colors.6. Device Performance are irrelevant for any RGB colour display as they are according to digital numbers and are totally independent on devices such as monitor.7. CMYK files require more memory than RGB files as it has four channels compared to three channels for RGB files.
Digital Imaging: RGB or CMYK?

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