Image Dithering |
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Image dithering occurs when a browser on a 256-color computer can not display a color that is not in its color palette and it tries to approximate the color with available colors. Dithering makes an image appear speckled. | ||
Original (24 bit, millions of colors) | Dithered (as seen on a 256-color computer) | |
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The dithered image is a screen shot of the original image as viewed in Netscape on a PC with the color depth set to 256 colors. To avoid dithering, create graphics using colors that are contained in the Web-safe color palette. Also be conscious of the effect that dithering may have on photographs you place on your Web pages. Note: In most cases, reducing the colors in a 24-bit photo to the Web-safe palette will not give you a usable image. |