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Alexander Freytag d95f9f0906 added important note to readme regarding max size of supported images 11 éve
COPYING 9a56179e76 added felzenszwalb code 12 éve
Makefile 9a56179e76 added felzenszwalb code 12 éve
README d95f9f0906 added important note to readme regarding max size of supported images 11 éve
compileFelzenszwalbSegmentation.m 1de245ec3d added compilation program 11 éve
convolve.h 9a56179e76 added felzenszwalb code 12 éve
disjoint-set.h 9a56179e76 added felzenszwalb code 12 éve
filter.h 9a56179e76 added felzenszwalb code 12 éve
image.h 9a56179e76 added felzenszwalb code 12 éve
imconv.h 9a56179e76 added felzenszwalb code 12 éve
imutil.h 9a56179e76 added felzenszwalb code 12 éve
misc.h 9a56179e76 added felzenszwalb code 12 éve
pnmfile.h 9a56179e76 added felzenszwalb code 12 éve
segment-graph.h 0b6653a4a4 stable version - todo: check if given img has only 1 dimension (gray scale) 12 éve
segment-image-labelOutput.h d0370b9937 proper comments for segment-image-labelOutput 11 éve
segment-image.h 9a56179e76 added felzenszwalb code 12 éve
segment.cpp 9a56179e76 added felzenszwalb code 12 éve
segmentFelzenszwalb.cpp cb165c089b fixed memory leak, proper code layout 11 éve
segmentFelzenszwalb.m 810368e721 minor change on default value 12 éve

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!