On Thu, 17 Jun 2010, [email protected] wrote:
face recognition is not based on colour in any sense, it is based on
number and orientation of segments of the contours, at least in haar's
algorithm ...
Those lines are expressed using pixels and each of those pixels have a
colour.
A segment detector could detect lines all over a picture, but it needs to
be thresholded to lines significant enough. Lines that are too subtle have
to be left out. In dark faces, or à contre-jour, how does Haar's algorithm
figure out that lines inside of the face are more significant than those
outside ?
_ _ __ ___ _____ ________ _____________ _____________________ ...
| Mathieu Bouchard, Montréal, Québec. téléphone: +1.514.383.3801
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