Keep Images Small - Use JPEG images for photographs. In most painting programs, there are options to vary the amount of compression ("quality") of the images you are saving. Try different values. Very often painting programs have a very high default, say 90 (on a scale of 1 to 100). You might find that a lower value, say 70, produces equally good results, without any visible loss in quality. The ideal quality will depend on the content of the image, so try it and see.
- Use GIF or PNG images for computer generated pictures, line drawings, cartoons, etc. It really helps to keep these files small if you can clean up the images in your paint program, by erasing any "stray" pixels. Think large blocks of solid color. Even relatively few stray pixels (for example on a badly scanned image), can greatly increase GIF or PNG file sizes.
- Check the image files are as small (in pixels) as they can be. A very common problem is that a user makes or scans an image at a large size (say 1,000X1,000 pixels), and then embeds it in their HTML page at a much smaller size (say 250X250) pixels. Loading the image into your paint program, and re-scaling it to the correct final size, will not only make for a smaller image, but will also make your HTML pages display much faster.
|
|
