8 April 2011

IMAGE MODELS (Colour Modes)


RGB (Red, Green, Blue)
·      The primary image mode for graphic is RGB. You should be aware of the other modes though.
·      Is faster to work with thank CMYK, as RGB creates a smaller file size making it perfect for the web.

CMYK (cyan, magenta, yellow, Black)
·      Produced dulled out colour as it doesn’t use light when its printed out.
·      Used in most office printers

GREY SCALE
·      Grayscale images include actually shades of grey.
·      You can make coloured images Grayscale, but you cannot do the reverse.
·      HOWEVER you can turn a Grayscale picture into a DUOTONE image (two colours)

BITMAP
·      Mode images are made up of black and white pixels only with no shades of grey or colour included.




RESOLUTION TYPES
NOTE: The larger the dpi the better the quality image

300dpi:
·      Commercial printing of book, glossy magazines and brochures.

150-200dpi:
·      For laser and inkjet printers (home office) and make a test print to clarify the best resolution for your printer

72-96dpi:
·      For email attachments, the web. Power point and multimedia

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