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Alexander Freytag 962eb0a405 clean-up, code adaptation towards matlab-suitable data sizes, code commentations, stable version 12 tahun lalu
COPYING 9a56179e76 added felzenszwalb code 13 tahun lalu
Makefile 9a56179e76 added felzenszwalb code 13 tahun lalu
README d95f9f0906 added important note to readme regarding max size of supported images 12 tahun lalu
compileFelzenszwalbSegmentation.m 1de245ec3d added compilation program 12 tahun lalu
convolve.h 9a56179e76 added felzenszwalb code 13 tahun lalu
disjoint-set.h 9a56179e76 added felzenszwalb code 13 tahun lalu
filter.h 9a56179e76 added felzenszwalb code 13 tahun lalu
image.h 9a56179e76 added felzenszwalb code 13 tahun lalu
imconv.h 9a56179e76 added felzenszwalb code 13 tahun lalu
imutil.h 9a56179e76 added felzenszwalb code 13 tahun lalu
misc.h 9a56179e76 added felzenszwalb code 13 tahun lalu
pnmfile.h 9a56179e76 added felzenszwalb code 13 tahun lalu
segment-graph.h 962eb0a405 clean-up, code adaptation towards matlab-suitable data sizes, code commentations, stable version 12 tahun lalu
segment-image-labelOutput.h 962eb0a405 clean-up, code adaptation towards matlab-suitable data sizes, code commentations, stable version 12 tahun lalu
segment-image.h 962eb0a405 clean-up, code adaptation towards matlab-suitable data sizes, code commentations, stable version 12 tahun lalu
segment.cpp 9a56179e76 added felzenszwalb code 13 tahun lalu
segmentFelzenszwalb.cpp 962eb0a405 clean-up, code adaptation towards matlab-suitable data sizes, code commentations, stable version 12 tahun lalu
segmentFelzenszwalb.m 810368e721 minor change on default value 13 tahun lalu

README


Implementation of the segmentation algorithm described in:

Efficient Graph-Based Image Segmentation
Pedro F. Felzenszwalb and Daniel P. Huttenlocher
International Journal of Computer Vision, 59(2) September 2004.

The program takes a color image (PPM format) and produces a segmentation
with a random color assigned to each region.

1) Type "make" to compile "segment".

2) Run "segment sigma k min input output".

The parameters are: (see the paper for details)

sigma: Used to smooth the input image before segmenting it.
k: Value for the threshold function.
min: Minimum component size enforced by post-processing.
input: Input image.
output: Output image.

Typical parameters are sigma = 0.5, k = 500, min = 20.
Larger values for k result in larger components in the result.


NOTE ( by Alexander Freytag )
- only images with less then std::numeric_limits::max() pixels are supported properly!