horizontal white black transitions of original image TC
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i ve applied rlsa algorithm and labelled blocks in image, now i want to find features for block,one feature is given below:
horizontal white-black transitions of original data (TC)
pls anyone help me to find this i wan to find using matlab any idea anyone ?pls?
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Walter Roberson
el 2 de Mayo de 2012
Not enough information. The end of a labelled area does not necessarily represent a white to black transition: it could represent a transition from any non-black color to black.
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Image Analyst
el 2 de Mayo de 2012
What is the rlsa algorithm? For black-white transitions, have you considered the gray level cooccurrence matrix, done by graycomatrix() in the Image Processing Toolbox. What is a transition. If you have
0 0 0
0 1 0
0 0 0
how many transitions is that? One? Eight? Two? Four?
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Walter Roberson
el 4 de Mayo de 2012
Transitions are indicated by
IM(:,1:end-1) ~= IM(:,2:end)
But how do you want this expressed as a "feature" ? If you want the index of them then the number could be different for each row.
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