Colour depth is referring to the number of bits that a pixel represents in a monitor to display a colour. The higher the bits/pixel the better the image will be displayed and this will also increase the variety of colours.
The early monitors that were invented only supported 1-bit colours and these where in black and white(Monochrome). Example - The Apple Macintosh and Atari ST.
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| Apple Macintosh |
Our home monitors nowadays supports 32 bit colour which can vary between 16.7million colours. The higher the bits the more memory one requires tho every computer nowadays comes with a video card that supports high bit colours.
24 bit and 32 bit can support up to 16,777,215. The 32bit has an alpha channel that makes it better since it can support up to 4,294,967,296. The alpha channel will help the colours create more gradients,transparencies and shadows .
One can clearly see that the third box has more quality than the others as the pixels are producing more colours than the others.
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| Comparison |
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