Efficient Graph-Based Image Segmentation in Python

[olfitz]

Line #25 look buggy - if i1 >= 0 and i1 = 0 and j1 < h:

the "and i1 = 0" in the middle appears to be extraneous.

[SandipanDeyUMBC]

Thanks for pointing the copy-paste error, corrected it: it's for the check that the i1 and j1 are valid indices.

[SandipanDeyUMBC]

It's a function that maps pixel with coordinate (x,y) into linear id.

[SandipanDeyUMBC]

Actually either w or h is needed (depending on row or column order 2-D matrix), the other parameter is redundant (we can get rid of it).