edge detection

Posted by Ru Wang on Jun 01, 2007; 5:54pm
URL: http://imagej.273.s1.nabble.com/edge-detection-tp3699234.html

Hello All,

I am using Image J to detect my grain image.
http://picasaweb.google.com/wangru.ustc/Image_ProcessAlbum
The first one is the origin image and the last one is the final image.
But you can see the result is not that satisfactory. I am wondering
if you can come up with a better procedure to detect the boundaries.
Mine is the following:

1. find edges
2. sharpen
3. threshold
4. make binary
5. invert
6. skeltenize
7. dilate
8  skelen
9  remove the unconnected lines

Thanks.

Ru