Daviddoria: Created page with 'OpenCV Error: Assertion failed (scn + 1 == m.cols && (depth == CV_32F || depth == CV_64F)) in perspectiveTransform, file /home/doriad/src/OpenCV-2.3.0/modules/core/src/matmul.cpp…'

2011-07-17T19:13:08Z

Created page with 'OpenCV Error: Assertion failed (scn + 1 == m.cols && (depth == CV_32F || depth == CV_64F)) in perspectiveTransform, file /home/doriad/src/OpenCV-2.3.0/modules/core/src/matmul.cpp…'

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OpenCV Error: Assertion failed (scn + 1 == m.cols && (depth == CV_32F || depth == CV_64F)) in perspectiveTransform, file /home/doriad/src/OpenCV-2.3.0/modules/core/src/matmul.cpp, line 1916
terminate called after throwing an instance of 'cv::Exception'
what(): /home/doriad/src/OpenCV-2.3.0/modules/core/src/matmul.cpp:1916: error: (-215) scn + 1 == m.cols && (depth == CV_32F || depth == CV_64F) in function perspectiveTransform

==stereoRectifyUncalibrated.cxx==
<source lang="cpp">
#include "opencv2/core/core.hpp"
#include "opencv2/imgproc/imgproc.hpp"
#include "opencv2/calib3d/calib3d.hpp"
#include "opencv2/highgui/highgui.hpp"

#include <fstream>
#include <iostream>
#include <sstream>
#include <string>

std::vector<cv::Point2f> ReadPoints(const std::string& filename);

int main( int argc, char* argv[])
{
// Verify arguments
if(argc < 5)
{
std::cerr << "Required arguments: input1.jpg input2.jpg points1.txt points2.txt" << std::endl;
return -1;
}

// Parse arguments
std::string image1FileName = argv[1];
std::string image2FileName = argv[2];
std::string points1FileName = argv[3];
std::string points2FileName = argv[4];

// Output arguments
std::cout << "Image1: " << image1FileName << std::endl
<< "Image2: " << image2FileName << std::endl
<< "Points1: " << points1FileName << std::endl
<< "Points2: " << points2FileName << std::endl;

// Read images
cv::Mat image1 = cv::imread(image1FileName, 1);
cv::Mat image2 = cv::imread(image2FileName, 1);

// Read points
std::vector<cv::Point2f> points1 = ReadPoints(points1FileName);
std::vector<cv::Point2f> points2 = ReadPoints(points2FileName);

if(points1.size() != points2.size())
{
std::cerr << "There must be the same number of points in both files (since they are correspondences!). File1 has " << points1.size() << " while file2 has " << points2.size() << std::endl;
return -1;
}

cv::Mat fundamentalMatrix = cv::findFundamentalMat(points1, points2, cv::FM_RANSAC, 3, 0.99);

std::cout << "F = " << fundamentalMatrix << std::endl;

cv::Mat H1, H2;
cv::stereoRectifyUncalibrated(points1, points2, fundamentalMatrix, image2.size(), H1, H2);

std::cout << "H1 = " << H1 << std::endl;
std::cout << "H2 = " << H2 << std::endl;

cv::Mat rectified(3,3,CV_64FC3);
cv::perspectiveTransform(image2, rectified, H2);

cv::imwrite("output.png", rectified);

return 0;
}

std::vector<cv::Point2f> ReadPoints(const std::string& filename)
{
// Read points
std::ifstream pointsstream(filename.c_str());

if(pointsstream == NULL)
{
std::cout << "Cannot open file " << filename << std::endl;
exit(-1);
}

// Read the point from the first image
std::string line;
std::vector<cv::Point2f> points;

while(getline(pointsstream, line))
{
std::stringstream ss(line);
float x,y;
ss >> x >> y;
points.push_back(cv::Point2f(x,y));
}

return points;
}

</source>

==CMakeLists.txt==
<source lang="cmake">
cmake_minimum_required(VERSION 2.6)

PROJECT(stereoRectifyUncalibrated)

FIND_PACKAGE(OpenCV REQUIRED )
INCLUDE_DIRECTORIES( ${OPENCV_INCLUDE_DIR} )

ADD_EXECUTABLE(stereoRectifyUncalibrated stereoRectifyUncalibrated.cxx)
TARGET_LINK_LIBRARIES(stereoRectifyUncalibrated ${OpenCV_LIBS})

</source>

OpenCV/WishList/Stereo/stereoRectifyUncalibrated - Revision history

Daviddoria: Created page with 'OpenCV Error: Assertion failed (scn + 1 == m.cols && (depth == CV_32F || depth == CV_64F)) in perspectiveTransform, file /home/doriad/src/OpenCV-2.3.0/modules/core/src/matmul.cpp…'