Is colour constancy good enough?
Brian Funt, Kobus Barnard and Lindsay Martin, "Is colour constancy good
European Conference on Computer Vision, 1998, pages 445-459.
This paper presents a negative result: current machine colour constancy
algorithms are not good enough for colour-based object recognition.
This result has surprised us since we have previously used the better of
these algorithms successfully to correct the colour balance of images for
display. Colour balancing has been the typical application of colour
constancy, rarely has it been actually put to use in a computer vision
system, so our goal was to show how well the various methods would do on
an obvious machine colour vision task, namely, object recognition. Although
all the colour constancy methods we tested proved insufficient for the
task, we consider this an important finding in itself. In addition
we present results showing the correlation between colour constancy performance
and object recognition performance, and as one might expect, the better
the colour constancy the better the recognition rate.
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Keywords: colour, colour constancy, object recognition, image indexing
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