From the course: Photoshop One-on-One: Fundamentals

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Saving an 8-bit GIF or PNG

Saving an 8-bit GIF or PNG - Photoshop Tutorial

From the course: Photoshop One-on-One: Fundamentals

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Saving an 8-bit GIF or PNG

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- [Instructor] In this movie, I'll show you how to save a highly graphical image as an eight bit gif or ping file. And so here we are looking at a sketch from one of the zillion times, we talked about adding thumbnails for each and every Deke's Techniques. Now here's how the math works out with eight bit files. First of all, consider that we have a bit, which is either on or off. So it has two states. And then you take it to the eighth power, hence an eight bit image. And when you do that math, you end up with 256 colors. Now your standard RGB image has 256 luminance levels per channel. And so in other words, you have 256 times 256 times 256 or 16.8 million colors in all. Whereas if you drop all the colors down to eight bits, then you get just 256 colors, but you also get some files savings as well. Now you can force the quick export command to export either gif or eight-bit ping files. The problem is you can't…

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