From the course: Photoshop 2020 One-on-One: Fundamentals

Unlock the full course today

Join today to access over 22,600 courses taught by industry experts or purchase this course individually.

Saving an 8-bit GIF or PNG

Saving an 8-bit GIF or PNG - Photoshop Tutorial

From the course: Photoshop 2020 One-on-One: Fundamentals

Start my 1-month free trial

Saving an 8-bit GIF or PNG

“

- [Instructor] In this movie, I'll show you how to save a highly graphical image as an 8-bit gif or png file. 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 8-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 can take it to the eighth power, hence an 8-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, 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 file savings as well. Now you can force a quick export command to export either gif or 8-bit png files. The problem is you can't see what you're…

Contents