Some images must contain dithering to look good, but it's best to Dithering adds different-colored pixels inĬlose proximity to each other to simulate secondary colors or smooth gradations Palette, so make sure you experiment with all three before you make your final Every image you optimize will lookīest and result in a smaller file size using a different color-reduction Image using a slightly different algorithm. Each palette reduces the number of colors in the Once you choose the number of colors, you can experiment with the threeĬolor-reduction palettes- perceptual, selective, andĪdaptive-to figure out which one gives you the best-looking image To choosing a color reduction palette-it's sheer experimentation. The trick is to find theīalance between the fewest number of colors and the best-looking image. Unfortunately, reducing the number of colors to tooįew colors can compromise the composition. Although FigureĬhange, these files are better suited to the GIF file format, rather than the Areas where colors change increaseįile size, which is the reason you shouldn't optimize continuous-toneĢ are best suited to GIF optimization because theyĬontain flat, graphical content. Horizontal, vertical, or diagonal direction. The GIF fileįormat looks for patterns in artwork, such as large runs of a single color in a JPEG of optimizing and compressing flat or simple graphic images with solidĪreas of color-logos, illustrations, cartoons, line art.
The GIF file format does a better job than Understand what you can do to make the smallest possible files. When you optimize images as GIFs in Photoshop CS2, it's important to A previousįocused on the basics of JPEG optimization. There are only a few graphic file formats you can use on the web. It's your job to create the best-looking images with the smallest file Optimizing images for the web is an art and a science. Adobe Photoshop CS2 for the Web Hands-On Trainingįor more information on Web design, visit our
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