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Pixel Art / Re: Smiley Pixel Art!
« on: January 10, 2011, 01:53:53 pm »I'm pretty sure I had a psd file (I know I had one) and I saved that as gif, png, and jpeg. And I don't see any difference. I also knew that png used lossless but I didn't pay much attention, so I'll take the psd file and save it as jpeg, png and gif and see what happens.there isn't anything wrong with the jpeg...
Comparison 1
Comparison 2
Did you load up your own image, already saved as jpeg, and then just re-save as png and gif? If so, that's why you don't notice a difference. The compression already happened.
jpeg uses a technique called lossy compression to reduce the file size. It's called lossy because integrity is actually lost in the process of compression. This means pixels might not be where they were before, or may change color, to reduce the complexity of the image, thereby decreasing filesize. This is bad for pixel art, or virtually anything that isn't a high-resolution photograph.
png on the other hand uses lossless compression. The algorithm attempts to reduce filesize only by using means that do not affect the fidelity of the original, raw data.
And here is a gif:
And last but not least a jpeg/jpg:
and am wondering what I can do to make it better, here are a few things I've noticed already:
(Tell me if I need to use gif)