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

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!