c++ - Create a single image from images array -

hi i'm trying create single image multiple images in opencv. images use same size.

what reshaping them single line , try merge them new image.

i create new image size of 2 images , pass array recieve error exc_bad_access(code=1, address = ..)

note: sizes of images correct size of single image : [170569 x 1] size of new_image : [170569 x 2]

my code below. thank you

int main(){       mat image[2];     image[0]= imread("image1.jpg",0);      image[1]= imread("image2.jpg",0);       image[0] = image[0].reshape(0, 1); //single line    image[1] = image[1].reshape(0, 1); //single line     int size = sizeof(image)/sizeof(mat);       mat new_image(image[0].cols,size,cv_32fc1,image);   } 

if understand need concatenate 2 image of same size 1 mat. wrote quick code perform task.

u can change argument function pointer , add other handlers care variant size image.

#include <iostream> #include <opencv2/opencv.hpp> #include <opencv2/highgui/highgui.hpp>  cv::mat cvconcatenatemat(const cv::mat &image1, const cv::mat &image2, bool iscol cv_default(true)){ if (iscol) {     cv::mat mergemat = cv::mat(image1.rows, image1.cols + image2.cols, image1.type());     (int j = 0; j < image1.rows; j++) {         (int = 0; < image1.cols; i++) {             mergemat.at<cv::vec3b>(j,i) = image1.at<cv::vec3b>(j,i);         }         (int = image1.cols; < mergemat.cols; i++) {             mergemat.at<cv::vec3b>(j,i) = image2.at<cv::vec3b>(j,i);         }     }     return mergemat; } else {     cv::mat mergemat = cv::mat(image1.rows + image2.rows, image1.cols, image1.type());     (int j = 0; j < image1.cols; j++) {         (int = 0; < image1.rows; i++) {             mergemat.at<cv::vec3b>(i,j) = image1.at<cv::vec3b>(i,j);         }         (int = image1.rows; < mergemat.rows; i++) {             mergemat.at<cv::vec3b>(i,j) = image2.at<cv::vec3b>(i-image1.rows,j);         }     }     return mergemat; } }  int main(int argc, const char * argv[]) {  cv::mat image1 = cv::imread("img1.jpg"); cv::mat image2 = cv::imread("img2.jpg"); cv::resize(image2, image2, image1.size());   cv::mat outimage = cvconcatenatemat(image1, image2, false);  cv::imshow("out image", outimage); cv::waitkey(0); return 0; 

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