readme.txt

很好的边缘检测源代码

Program:	ED256
Author:	James Matthews
Date:		19/10/2000
Version:	2.1

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       V e r s i o n s
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v2.1 (19th October, 2000)
- Will only draw the edges adjacent to the real picture if it fits.
- Added prototyping detection. See http://www.generation5.org/vision.shtml
- Flicker-free drawing.
- Wait cursor during long operations, and status bar explanations.

v2.0 (17th January, 2000)
- Added the filter dialog.
- Much better edge detection, using Laplacian Approximation
- Edges drawn to the side of the picture.
- Edges now saved to bitmap, won't disappear on redraw.

v1.0
- First public release.

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 B u g s   a n d   Q u i r k s
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v2.1
- The Windows GDI is TOO SLOW! I need a better way than GetPixel to 
  get the colour information. If anyone has a quick routine that gives me
  a RGB value for any colour-depth bitmap...I'd REALLY appreciate it.