Choosing the image format, and JPG Compression
Which image format should you choose for your Web images?
Here are some
helpful hints:
Life is full of choices: A window or aisle seat in an airplane, the smoking or nonsmoking section in a restaurant, GIF or JPEG images on a Web page. It's this latter choice, of course, that concerns FrontPage users the most.
Which image format should you choose for your Web images? That really depends on the images themselves. If your images are scanned photographs--or include gradations of color--JPEG is the best choice. If your images contain mostly large regions of solid colors, go with the GIF format. Also, you must use the GIF format if you want to create animations or transparent images. JPEG doesn't support these capabilities.
One other thing to note is that you should avoid over-compressing JPEGs in FrontPage Editor. A common practice among Web designers is to maximize the compression of JPEG images in their preferred graphics software application and then import the images into their FrontPage Web. However, FrontPage is set up by default to further compress the inserted images by as much as 75 percent, which noticeably degrades the quality of the image after the page is saved. To prevent this over-compression, right-click on the image that you just inserted into FrontPage Editor (prior to saving the page) and select Image Properties from the context menu. Change the JPEG compression setting to 100 percent, which will prevent FrontPage from performing any unnecessary compression.
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Kate Akers akersk@missouri.edu Last revised: 12/12/06 |
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