jan@swivax.UUCP (Jan Wielemaker) (12/09/88)
I'm searching for an algorithm to scale arbitrary bitmaps by arbitrary scale factors (e.g. 0.26, 1.7, 13, etc.). I've seen some pretty good results with FrameMaker on SUNS, but as I need it to operate in a program of mine that is of no use. The best is a C-function that can scale SUN PixRects, but a description of a good algorithm or a reference to a publication would be of great help as well. Thanks --- Jan Wielemaker
cnc@hpcilzb.HP.COM (Chris Christensen) (12/10/88)
If you get a response to this question, could you please post it. I too would be interested. Chris Christensen
markv@hpmwtd.HP.COM (Mark VanMeeter) (12/13/88)
>I'm searching for an algorithm to scale arbitrary bitmaps by arbitrary >scale factors (e.g. 0.26, 1.7, 13, etc.). I've seen some pretty good >results with FrameMaker on SUNS, but as I need it to operate in a >program of mine that is of no use. The best is a C-function that can >scale SUN PixRects, but a description of a good algorithm or a reference >to a publication would be of great help as well. The following reference may be of use...... Schreiber, W. and Troxel, D. ``Tranformation Between Continuous and Discrete Representations of Images: A Perceptual Approach'', IEEE Transactions on Pattern Analysis and Machine Intelligence, March 1985 ---------- Mark VanMeeter