00001 #include "EdgeDetection/MicroEdgeDetector.h" 00002 00003 #include <cmath> 00004 00005 namespace EdgeDetection 00006 { 00007 Edge MicroEdgeDetector::DetectEdge(Image* image) 00008 { 00009 if (image == 0) throw "The parameter 'image' cannot be NULL."; 00010 if (image->GetWidth() != size || image->GetHeight() != size) throw "The parameter 'image' was out of range."; 00011 00012 double moment00 = Image::Combine(image, mask00); 00013 double moment10 = Image::Combine(image, mask10); 00014 double moment01 = Image::Combine(image, mask01); 00015 double moment11 = Image::Combine(image, mask11); 00016 double moment20 = Image::Combine(image, mask20); 00017 double moment02 = Image::Combine(image, mask02); 00018 00019 double rotatedMoment00 = moment00; 00020 double rotatedMoment10 = sqrt(moment10 * moment10 + moment01 * moment01); 00021 double rotatedMoment20 = (moment10 * moment10 * moment20 + 2 * moment10 * moment01 * moment11 + moment01 * moment01 * moment02) / (moment10 * moment10 + moment01 * moment01); 00022 00023 double offset = (4 * rotatedMoment20 - rotatedMoment00) / (3 * rotatedMoment10); 00024 double angle = atan2(moment01, moment10); 00025 00026 return Edge(offset, angle); 00027 } 00028 };
