This paper introduces an unsupervised color segmentation
method. The underlying idea is to segment the input
image several times, each time focussing on a different
salient part of the image and to subsequently merge all obtained
results into one composite segmentation. We identify
salient parts of the image by applying affinity propagation
clustering to efficiently calculated local color and texture
models. Each salient region then serves as an independent
initialization for a figure/ground segmentation. Segmentation
is done by minimizing a convex energy functional
based on weighted total variation leading to a global optimal
solution. Each salient region provides an accurate figure/
ground segmentation highlighting different parts of the
image. These highly redundant results are combined into
one composite segmentation by analyzing local segmentation
certainty. Our formulation is quite general, and other
salient region detection algorithms in combination with any
sem...