Am Samstag, 4. Februar 2006 17:58 schrieb Rich Shepard: > A document requires screen shots as illustrations. I've used The GIMP to > capture the window, scaled the result to 100 pixels/inch resolution, and a > size of 4 inches wide. Then it's saved as a .png file. The document will > almost certainly be printed by readers on a laser or color inkjet printer.
I would not scale the image. The dimensions of the screenshot in inch don't matter at all, what matters is the number of pixels, and that is predetermined by the window you want to capture. You can do the final scaling in LyX, this is often preferable, because you scale to 100% text width or some other document related size. When I do screenshots, I simply save the resulting file as png. Sometimes I crop unnessecary borders away, but more manipulations are normally not needed. > I'm seeking comments on whether there is a better way to represent these > images. That is, should the resolution be higher? Is a different file format > a better choice? PNG is a good file format for this task: it is a bitmap format, and has lossless compression that works well for typical screen contents. It will be included without conversion in the resulting pdf with pdflatex, and it can be easily converted to eps by LyX if you use latex with postscript output. JPEG would also be an alternative, but only if you have file size probelms, since it compresses lossy. There are a lot of commercial software manuals with JPEG screenshots, but that looks ugly. > They are raster images to begin with, so conversion to a > vector format such as .eps will almost certainly result in resolution loss. I don't think so. EPS can contain vector and bitmap data, with a good converter the result will be equivalent to the original image (but typically require more storage on disk). Georg
