
March 15th, 2004, 01:04 PM
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HTML/CSS/Photoshop maven
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Join Date: Nov 2003
Location: CA
Posts: 184
  
Time spent in forums: < 1 sec
Reputation Power: 6
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There is no "magic button" you can push to convert a raster (bitmap) image into a vector image. Vector images are based upon mathematical vectors to calculate line curvatures, giving you precise lines and shapes to an infinite degree of zoom. Raster images, however, are 1-1 for pixels, meaning that the pixels you see at 100% are all that are in the image. If you zoom in on a raster image, you start to see pixelation whereas you don't see this with vector images. (To put it another way, raster images are like ink on a piece of paper while vectors are like cutouts layed over it. When you enlarge a piece of paper with ink on it, the image gets interpolated because it has to fill in data that isn't there; when you photocopy a cutout over a piece of paper, however, you have a sharp line because the original is all there, er, yeah, something like that.) Get what I'm saying?
*Breathes* Anyway, to convert a raster image into a vector image with a tool like Photoshop, you have to use the pen tools to make a new shape over the original. It won't come out exactly like the original, but it may come close depending on how good you are. Try it out, see what works and what doesn't, and come back here if you need more help. (Yes, this is a very time consuming method, but if that's what needs to be done, well, there you go.)
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