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2017-03-18 18:34:15 -0600	received badge	● Popular Question (source)
2014-08-07 01:37:48 -0600	commented question	How to create a LBP histogram using OpenCV? I want to create a lbp histogram
2014-08-06 21:08:20 -0600	asked a question	How to create a LBP histogram using OpenCV? I want to create a lbp histogram in OpenCV for a picture. Is there any change to create a lbp histogram? Hope for Help.. #include "histogram.hpp" #include <vector> template <typename _Tp> void lbp::histogram_(const Mat& src, Mat& hist, int numPatterns) { hist = Mat::zeros(1, numPatterns, CV_32SC1); for(int i = 0; i < src.rows; i++) { for(int j = 0; j < src.cols; j++) { int bin = src.at<_Tp>(i,j); hist.at<int>(0,bin) += 1; } } } template <typename _Tp> double lbp::chi_square_(const Mat& histogram0, const Mat& histogram1) { if(histogram0.type() != histogram1.type()) CV_Error(CV_StsBadArg, "Histograms must be of equal type."); if(histogram0.rows != 1 \|\| histogram0.rows != histogram1.rows \|\| histogram0.cols != histogram1.cols) CV_Error(CV_StsBadArg, "Histograms must be of equal dimension."); double result = 0.0; for(int i=0; i < histogram0.cols; i++) { double a = histogram0.at<_Tp>(0,i) - histogram1.at<_Tp>(0,i); double b = histogram0.at<_Tp>(0,i) + histogram1.at<_Tp>(0,i); if(abs(b) > numeric_limits<double>::epsilon()) { result+=(aa)/b; } } return result; } void lbp::spatial_histogram(const Mat& src, Mat& hist, int numPatterns, const Size& window, int overlap) { int width = src.cols; int height = src.rows; vector<Mat> histograms; for(int x=0; x < width - window.width; x+=(window.width-overlap)) { for(int y=0; y < height-window.height; y+=(window.height-overlap)) { Mat cell = Mat(src, Rect(x,y,window.width, window.height)); histograms.push_back(histogram(cell, numPatterns)); } } hist.create(1, histograms.size()numPatterns, CV_32SC1); // i know this is a bit lame now... feel free to make this a bit more efficient... for(int histIdx=0; histIdx < histograms.size(); histIdx++) { for(int valIdx = 0; valIdx < numPatterns; valIdx++) { int y = histIdx*numPatterns+valIdx; hist.at<int>(0,y) = histograms[histIdx].at<int>(valIdx); } } } // wrappers void lbp::histogram(const Mat& src, Mat& hist, int numPatterns) { switch(src.type()) { case CV_8SC1: histogram_<char>(src, hist, numPatterns); break; case CV_8UC1: histogram_<unsigned char>(src, hist, numPatterns); break; case CV_16SC1: histogram_<short>(src, hist, numPatterns); break; case CV_16UC1: histogram_<unsigned short>(src, hist, numPatterns); break; case CV_32SC1: histogram_<int>(src, hist, numPatterns); break; } } double lbp::chi_square(const Mat& histogram0, const Mat& histogram1) { switch(histogram0.type()) { case CV_8SC1: return chi_square_<char>(histogram0,histogram1); break; case CV_8UC1: return chi_square_<unsigned char>(histogram0,histogram1); break; case CV_16SC1: return chi_square_<short>(histogram0, histogram1); break; case CV_16UC1: return chi_square_<unsigned short>(histogram0,histogram1); break; case CV_32SC1: return chi_square_<int>(histogram0,histogram1); break; } } void lbp::spatial_histogram(const Mat& src, Mat& dst, int numPatterns, int gridx, int gridy, int overlap) { int width = static_cast<int>(floor(src.cols/gridx)); int height = static_cast<int>(floor(src.rows / gridy)); spatial_histogram(src, dst, numPatterns, Size_<int>(width, height), overlap); } // Mat return type functions Mat lbp::histogram(const Mat& src, int numPatterns) { Mat hist; histogram(src, hist, numPatterns); return hist; } Mat lbp::spatial_histogram(const Mat& src, int numPatterns, const Size& window, int overlap) { Mat hist; spatial_histogram(src, hist, numPatterns, window, overlap); return hist; } Mat lbp::spatial_histogram(const Mat& src, int numPatterns, int gridx, int gridy, int overlap) { Mat hist; spatial_histogram(src, hist ... (more)
2014-07-07 23:22:17 -0600	received badge	● Scholar (source)
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2014-07-06 03:30:45 -0600	commented question	Debug assertion failed in my visual studio 12 on windows 8.1. How can I fix it? Yes, thank you its solved :)
2014-07-05 20:31:31 -0600	commented question	Debug assertion failed in my visual studio 12 on windows 8.1. How can I fix it? Then, have I changed my image path? Or what will I have to do?
2014-07-05 12:10:37 -0600	received badge	● Editor (source)
2014-07-05 12:08:17 -0600	asked a question	Debug assertion failed in my visual studio 12 on windows 8.1. How can I fix it? #include "opencv2/highgui/highgui.hpp" #include "opencv2/imgproc/imgproc.hpp" #include <iostream> #include <stdio.h> using namespace std; using namespace cv; /** * @function main / int main( int argc, char* argv ) { Mat src, dst; /// Load image src = imread( argv[1], 1 ); if( !src.data ) { return -1; } /// Separate the image in 3 places ( B, G and R ) vector<Mat> bgr_planes; split( src, bgr_planes ); /// Establish the number of bins int histSize = 256; /// Set the ranges ( for B,G,R) ) float range[] = { 0, 256 } ; const float* histRange = { range }; bool uniform = true; bool accumulate = false; Mat b_hist, g_hist, r_hist; /// Compute the histograms: calcHist( &bgr_planes[0], 1, 0, Mat(), b_hist, 1, &histSize, &histRange, uniform, accumulate ); calcHist( &bgr_planes[1], 1, 0, Mat(), g_hist, 1, &histSize, &histRange, uniform, accumulate ); calcHist( &bgr_planes[2], 1, 0, Mat(), r_hist, 1, &histSize, &histRange, uniform, accumulate ); // Draw the histograms for B, G and R int hist_w = 512; int hist_h = 400; int bin_w = cvRound( (double) hist_w/histSize ); Mat histImage( hist_h, hist_w, CV_8UC3, Scalar( 0,0,0) ); /// Normalize the result to [ 0, histImage.rows ] normalize(b_hist, b_hist, 0, histImage.rows, NORM_MINMAX, -1, Mat() ); normalize(g_hist, g_hist, 0, histImage.rows, NORM_MINMAX, -1, Mat() ); normalize(r_hist, r_hist, 0, histImage.rows, NORM_MINMAX, -1, Mat() ); /// Draw for each channel for( int i = 1; i < histSize; i++ ) { line( histImage, Point( bin_w(i-1), hist_h - cvRound(b_hist.at<float>(i-1)) ) , Point( bin_w(i), hist_h - cvRound(b_hist.at<float>(i)) ), Scalar( 255, 0, 0), 2, 8, 0 ); line( histImage, Point( bin_w(i-1), hist_h - cvRound(g_hist.at<float>(i-1)) ) , Point( bin_w(i), hist_h - cvRound(g_hist.at<float>(i)) ), Scalar( 0, 255, 0), 2, 8, 0 ); line( histImage, Point( bin_w(i-1), hist_h - cvRound(r_hist.at<float>(i-1)) ) , Point( bin_w(i), hist_h - cvRound(r_hist.at<float>(i)) ), Scalar( 0, 0, 255), 2, 8, 0 ); } /// Display namedWindow("calcHist Demo", CV_WINDOW_AUTOSIZE ); imshow("calcHist Demo", histImage ); waitKey(0); return 0; } The code below is used for histogram calculation using Local Binary Pattern in Visual Studio when i try to run in visual studio 12 then it shows debug assertion failed. and see the image for details Hope for a solution
2014-07-05 00:30:16 -0600	commented answer	when i tries to run simple code for OpenCV in Visual studio 12 it says many errors. How can i solve this Is this for opencv C:\Opencv243\build\x86\vc10\bin
2014-07-04 17:41:46 -0600	commented answer	when i tries to run simple code for OpenCV in Visual studio 12 it says many errors. How can i solve this I am using windows 8.1 Thank You Hope for a solution.
2014-07-04 12:13:29 -0600	asked a question	when i tries to run simple code for OpenCV in Visual studio 12 it says many errors. How can i solve this `#include <opencv\cv.h> #include <opencv\highgui.h> using namespace cv; int main() { // Create matrix to store. Mat image; // initializing capture VideoCapture cap; cap.open(0); //create window to show image namedWindow("window",1); // copy webcam stream to image cap>>image; //print image to screen imshow("window",image); // delay 33ms waitKey(33); }` and its errors are 'OpenCV.exe' (Win32): Loaded 'C:\Users\Uzzal Das\Documents\Visual Studio 2012\Projects\OpenCV\Debug\OpenCV.exe'. Symbols loaded. 'OpenCV.exe' (Win32): Loaded 'C:\Windows\SysWOW64\ntdll.dll'. Symbols loaded. 'OpenCV.exe' (Win32): Loaded 'C:\Windows\SysWOW64\kernel32.dll'. Symbols loaded. 'OpenCV.exe' (Win32): Loaded 'C:\Windows\SysWOW64\KernelBase.dll'. Symbols loaded. 'OpenCV.exe' (Win32): Loaded 'C:\Opencv243\build\x86\vc10\bin\opencv_core243d.dll'. Cannot find or open the PDB file. 'OpenCV.exe' (Win32): Loaded 'C:\Opencv243\build\x86\vc10\bin\opencv_highgui243d.dll'. Cannot find or open the PDB file. 'OpenCV.exe' (Win32): Loaded 'C:\Windows\SysWOW64\msvcp110d.dll'. Symbols loaded. 'OpenCV.exe' (Win32): Loaded 'C:\Windows\SysWOW64\msvcr110d.dll'. Symbols loaded. 'OpenCV.exe' (Win32): Loaded 'C:\Users\Uzzal Das\Documents\Visual Studio 2012\Projects\OpenCV\Debug\msvcp100d.dll'. Symbols loaded. 'OpenCV.exe' (Win32): Loaded 'C:\Users\Uzzal Das\Documents\Visual Studio 2012\Projects\OpenCV\Debug\msvcr100d.dll'. Symbols loaded. 'OpenCV.exe' (Win32): Loaded 'C:\Windows\SysWOW64\user32.dll'. Symbols loaded. 'OpenCV.exe' (Win32): Loaded 'C:\Windows\SysWOW64\gdi32.dll'. Symbols loaded. 'OpenCV.exe' (Win32): Loaded 'C:\Windows\SysWOW64\ole32.dll'. Symbols loaded. 'OpenCV.exe' (Win32): Loaded 'C:\Windows\SysWOW64\oleaut32.dll'. Symbols loaded. 'OpenCV.exe' (Win32): Loaded 'C:\Windows\SysWOW64\advapi32.dll'. Symbols loaded. 'OpenCV.exe' (Win32): Loaded 'C:\Windows\SysWOW64\comctl32.dll'. Symbols loaded. 'OpenCV.exe' (Win32): Loaded 'C:\Windows\SysWOW64\avifil32.dll'. Symbols loaded. 'OpenCV.exe' (Win32): Loaded 'C:\Windows\SysWOW64\msvfw32.dll'. Symbols loaded. 'OpenCV.exe' (Win32): Loaded 'C:\Windows\SysWOW64\avicap32.dll'. Symbols loaded. 'OpenCV.exe' (Win32): Loaded 'C:\Windows\SysWOW64\combase.dll'. Symbols loaded. 'OpenCV.exe' (Win32): Loaded 'C:\Windows\SysWOW64\msvcrt.dll'. Symbols loaded. 'OpenCV.exe' (Win32): Loaded 'C:\Windows\SysWOW64\rpcrt4.dll'. Symbols loaded. 'OpenCV.exe' (Win32): Loaded 'C:\Windows\SysWOW64\sechost.dll'. Symbols loaded. 'OpenCV.exe' (Win32): Loaded 'C:\Windows\SysWOW64\winmm.dll'. Symbols loaded. 'OpenCV.exe' (Win32): Loaded 'C:\Windows\SysWOW64\msacm32.dll'. Symbols loaded. 'OpenCV.exe' (Win32): Loaded 'C:\Windows\SysWOW64\shell32.dll'. Symbols loaded. 'OpenCV.exe' (Win32): Loaded 'C:\Windows\SysWOW64\version.dll'. Symbols loaded. 'OpenCV.exe' (Win32): Loaded 'C:\Windows\SysWOW64\sspicli.dll'. Symbols loaded. 'OpenCV.exe' (Win32): Loaded 'C:\Windows\SysWOW64\winmmbase.dll'. Symbols loaded. 'OpenCV.exe' (Win32): Loaded 'C:\Windows\SysWOW64\shlwapi.dll'. Symbols loaded. 'OpenCV.exe' (Win32): Loaded 'C:\Windows\SysWOW64\cryptbase.dll'. Symbols loaded. 'OpenCV.exe' (Win32): Loaded 'C:\Windows\SysWOW64\cfgmgr32.dll'. Symbols loaded. 'OpenCV.exe' (Win32): Loaded 'C:\Windows\SysWOW64\devobj.dll'. Symbols loaded. 'OpenCV.exe' (Win32): Loaded 'C:\Windows\SysWOW64\bcryptprimitives.dll'. Symbols loaded. 'OpenCV.exe' (Win32): Loaded 'C:\Windows\SysWOW64\imm32.dll'. Symbols loaded. 'OpenCV.exe' (Win32): Loaded 'C:\Windows\SysWOW64\msctf.dll'. Symbols loaded. 'OpenCV.exe' (Win32): Loaded 'C:\PROGRA~2\SupTab ... (more)