"If you've always wanted to create animated images from scratch, there are now simple ways to learn how even if you're not a professional cartoonist. Animations work similar to cartoons because you must create a variety of images that are very similar, but different in just a small way. As the images are "flipped" or looped on the computer screen the animation comes to life.
Free animated gifs are available online, but sometimes you might need to create your own. For example, you might want to create a holiday special animation for your website to
To answer our questions about image types for your web page, Jeff Atwood is there. "When it comes to image formats on the internet, it's generally a three-way tie between JPEG, GIF, and PNG. Deciding which image format to use is relatively straightforward; you choose lossy JPEG when you're saving continuous-tone photographic images, and you choose between lossless GIF or lossless PNG when you're saving images with large blocks of the same or similar colors. See my comparison of GIF/PNG and JPEG if you're not clear on what the difference is. But the
Compression
PNG's compression is among the best that can be had without losing image information and without paying patent fees, but not all implementations take full advantage of the available power. Even those that do can be thwarted by unwise choices on the part of the user.
PNG supports three main image types: truecolor, grayscale and palette-based ("8-bit"). JPEG only supports the first two; GIF only the third (although it can fake grayscale by using a gray palette). The impact on compression comes from the ability to mix up image types in
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