>So for example, if the projector resolution is 1024x768, you should use >images around 1000 pixels wide, since anything larger is going to be reduced >to the projector resolution.
You're absolutely right - images larger than the maximum screen size don't get you anything (unless the image gets cropped or only a small portion is used). Two tidbits I'd pass along -- First, if you're using photoshop to reduce the image from its original size, after you've shrunk use 'unsharp mask' instead of 'sharpen' or 'sharpen more' to clean up the image. For an image that's about 1000px wide, try something like amount: 40%, radius: 1.4px, threshold: 5 levels. Unsharp mask really gets at the actual edges between things and tightens those instead of the whole image. Also sharpen a little less than you want to. Second, for a ppt deck when saving the image to be used, you probably only need a jpg with about 60-80% quality. You can go higher, but you're not going to get that much more detail and the file size will reduce significantly. I'd be surprised if any image that was going to be used in ppt was more than 500k. -bw. -- -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Bruce Wyman, Director of Technology Denver Art Museum / 100 W 14th Ave. Pkwy, Denver, CO 80204 office: 720.913.0159 / fax: 720.913.0002 <bwyman at denverartmuseum.org>
