October 2009
Intermediate to advanced
464 pages
12h 24m
English
Content preview from Inkscape: Guide to a Vector Drawing Program, Third Edition
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Chapter 19. Tracing Bitmaps
Inkscape has the ability to convert bitmap images into paths via tracing. Inkscape uses routines from Potrace [http://potrace.sourceforge.net], with the generous permission of the author, Peter Selinger. Optionally, SIOX can be used as a preprocessor to help separate a foreground from a background.
Tracing an image is not an easy thing to do. Potrace works well for some types of artwork (black-and-white line drawing) and not so well for others (scans from screened color prints). The paths that are created can have thousands of nodes depending on the complexity of the image and may tax the power of your CPU. Using the Suppress speckles option can reduce the number of nodes generated by the scan. After the scan, you ...
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