sb-Internet Images - used to display the picture. The GIF...

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Types of Images for the Internet Computer image files can be very large. For example, a three-inch square image suitable for printing in a book can be up to three megabytes in size. Fortunately, there are ways to compress image files. This is important because images load faster in a web page when they are compressed. For example, a three-megabyte file that’s compressed might only take a second to download. There are three file formats that are most popular for displaying images on the internet: GIF (Graphic Exchange Format) The GIF format compresses a file by examining the image for consistent patterns and then rewriting the digital image to a shorthand based on those repeated patterns, reducing the number of colors
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Unformatted text preview: used to display the picture. The GIF format can compress images by about 4:1. JPEG (Joint Photographic Experts Group) JPEG format compresses a file by tossing out subtle color differences in the image that human eyes are less likely to recognize. Depending on the level of image quality you require, JPEG can accomplish compression ratios between 10:1 and 100:1. PNG (Portable Network Graphics)PNG typically has a 9:1 compression ratio. It was created to replace the GIF format with an image file that does not require a patent license to use. This format can have an 8 bit alpha channel, which allows the images to be semi transparent, providing a more professional look....
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This note was uploaded on 06/06/2010 for the course IT 1203 taught by Professor Saut during the Spring '10 term at Art Institute of Atlanta.

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