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move pyr_segmentation to IplImage

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This commit is contained in:
ser1zw 2013-01-20 02:53:24 +09:00
parent 6331e8dc53
commit 55aab3538a
6 changed files with 72 additions and 77 deletions
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38
ext/opencv/iplimage.cpp
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@ -60,7 +60,7 @@ define_ruby_class()
rb_define_method(rb_klass, "set_coi", RUBY_METHOD_FUNC(rb_set_coi), 1);
rb_define_alias(rb_klass, "coi=", "set_coi");
rb_define_method(rb_klass, "reset_coi", RUBY_METHOD_FUNC(rb_reset_coi), 0);
rb_define_method(rb_klass, "pyr_segmentation", RUBY_METHOD_FUNC(rb_pyr_segmentation), 3);
rb_define_method(rb_klass, "smoothness", RUBY_METHOD_FUNC(rb_smoothness), -1);
rb_define_singleton_method(rb_klass, "decode_image", RUBY_METHOD_FUNC(rb_decode_image), -1);
@ -591,6 +591,42 @@ high_pass_range(const IplImage *pImage, float lostPercentage, int &outLow, int &
outLow = (int)(lostPercentage * outHigh);
}
/*
* call-seq:
* pyr_segmentation(<i>level, threshold1, threshold2</i>) -> [iplimage, cvseq(include cvconnectedcomp)]
*
* Does image segmentation by pyramids.
* The pyramid builds up to the level <i>level<i>.
* The links between any pixel a on <i>level<i>i and
* its candidate father pixel b on the adjacent level are established if
* p(c(a),c(b)) < threshold1. After the connected components are defined, they are joined into several clusters. Any two segments A and B belong to the same cluster, if
* p(c(A),c(B)) < threshold2. The input image has only one channel, then
* p(c^2,c^2)=|c^2-c^2|. If the input image has three channels (red, green and blue), then
* p(c^2,c^2)=0,3*(c^2 r-c^2 r)+0.59*(c^2 g-c^2 g)+0,11*(c^2 b-c^2 b) . There may be more than one connected component per a cluster.
*
* Return segmented image and sequence of connected components.
* <b>support single-channel or 3-channel 8bit unsigned image only</b>
*/
VALUE
rb_pyr_segmentation(VALUE self, VALUE level, VALUE threshold1, VALUE threshold2)
{
IplImage* self_ptr = IPLIMAGE(self);
CvSeq *comp = NULL;
VALUE storage = cCvMemStorage::new_object();
VALUE dest = Qnil;
try {
dest = cIplImage::new_object(cvGetSize(self_ptr), cvGetElemType(self_ptr));
cvPyrSegmentation(self_ptr, IPLIMAGE(dest), CVMEMSTORAGE(storage), &comp,
NUM2INT(level), NUM2DBL(threshold1), NUM2DBL(threshold2));
}
catch (cv::Exception& e) {
raise_cverror(e);
}
if (!comp) {
comp = cvCreateSeq(CV_SEQ_CONNECTED_COMP, sizeof(CvSeq), sizeof(CvConnectedComp), CVMEMSTORAGE(storage));
}
return rb_ary_new3(2, dest, cCvSeq::new_sequence(cCvSeq::rb_class(), comp, cCvConnectedComp::rb_class(), storage));
}
VALUE
new_object(int width, int height, int type)