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rdococ

Guest

n-bit colour depth and dithering

Colour depth is how many bits/numbers are needed to display a pixel on the screen. For example, 1-bit is only White. However if the number could be 0, it could support Black aswell.
Then we carry into 2-bit, which gives us 2 extra colors: dark grey and light grey.
Then, 4-bit is the least amount of bit depth in colour that can display colours.
And 8-bit greatly adds more bricks to build up the colours of 16,777,00+ for 24-bit. If RGBA is used in the code, it allows transparency too. 8-bit can display VERY close to 24-bit, like 16-bit.
Then 16-bit is a low-level version of 24-bit, which CAN display extremely close to the colours for 24-bit.
Oh, and there is an n-bit which our eyes display in.
And 24-bit is the truecolour--- but without transparency. 32-bit is basically 24-bit with transparency. However, I can provide 24-bit transparency, coded in my head:
It blends into what's behind it, and is re-drawn every move over a different colour item, and it then part blends into the different colour.
32-bit could be 24-bit with RGBA, but instead it carrys out it's own "binary-home-made" transparency.
31-bit is 32-bit, but with a removed un-used bit.
Then we carry out to 64-bit, which enhances 31-bit and 32-bit with extra memory space. More for...
128-bit,
256-bit and
468-bit!

---Dithering!--
So, welcome to the dithering area.
I do not know all ditherings, but the one I've been focusing on is the Floyard-dithering method. Based on that dithering method, I made my own, which IS basically the one it's based on, but it makes everything larger by 25%. But it decreases the zoom by 25% too. It makes it look like it's actually fisically displaying 24-bit. That isn't the case. This works better with 8-bit RGBA, making it look fisically like 32-bit not 24-bit. Also, it can display 32-bit combined with the transparency method, it can display 32-bit right from 4-bit. However it can only display grey-scale if combined with 2-bit and 1-bit. Try making your own dithering methods by posting about it in this forum topic.

Jeremifier

Guest

Re: n-bit colour depth and dithering

Uhh.... wat? :/