nitram2342/degate — pull request #12 by xorrhks0216 (2013-03-04 07:11:12+00:00)
Title: using canny edge detection

- Wire matching uses Canny edge detection.
- Canny edge detection has good performance than those of Zero crossing edge detection. It can detect outline of wire. But it is necessary to be a single line.
- low & high hysteresis text bar were added at wire matching menu by using 'glade interface design program'.
- optimum hysteresis values are 0.07, 0.25.(sample project, degate_0.1.0_2011-05-05_1607_legic_prime.zip, in degate.org)