hi I want to measure depth with OpenCV Stereo_match algorithms that are available in the examples(Cpp) I use. but Input data can not be detected in below loop: if (argc < 3) { print_help(); return 0; }

Inputs have been introduced in the form below: const char* algorithm_opt = "var"; const char* maxdisp_opt = "1024"; const char* blocksize_opt = "3"; const char* nodisplay_opt = "1"; const char* scale_opt = "1";

and: const char* img1_filename = "left110.jpg"; const char* img2_filename = "right110.jpg"; const char* intrinsic_filename = "C:/Users/farzad/Desktop/camera_calibration/camera_calibration/camera_calibration/intrinsics.yml"; const char* extrinsic_filename = "C:/Users/farzad/Desktop/camera_calibration/camera_calibration/camera_calibration/extrinsics.yml"; const char* disparity_filename = "disparity.jpg"; const char* point_cloud_filename = "point_cloud.xml";

where is the problem from???? thanks.

the complete code is:

/* * stereo_match.cpp * calibration * * Created by Victor Eruhimov on 1/18/10. * Copyright 2010 Argus Corp. All rights reserved. * */

include "opencv2/calib3d/calib3d.hpp"

include "opencv2/imgproc/imgproc.hpp"

include "opencv2/highgui/highgui.hpp"

include "opencv2/contrib/contrib.hpp"

include <stdio.h>

using namespace cv;

static void print_help() { printf("\nDemo stereo matching converting L and R images into disparity and point clouds\n"); printf("\nUsage: stereo_match <left_image> <right_image> [--algorithm=bm|sgbm|hh|var] [--blocksize=<block_size>]\n" "[--max-disparity=<max_disparity>] [--scale=scale_factor>] [-i <intrinsic_filename>] [-e <extrinsic_filename>]\n" "[--no-display] [-o <disparity_image>] [-p <point_cloud_file>]\n"); }

static void saveXYZ(const char* filename, const Mat& mat) { const double max_z = 1.0e4; FILE* fp = fopen(filename, "wt"); for(int y = 0; y < mat.rows; y++) { for(int x = 0; x < mat.cols; x++) { Vec3f point = mat.at<vec3f>(y, x); if(fabs(point[2] - max_z) < FLT_EPSILON || fabs(point[2]) > max_z) continue; fprintf(fp, "%f %f %f\n", point[0], point[1], point[2]); } } fclose(fp); }

int main(int argc, char* argv) { const char algorithm_opt = "--algorithm=sgbm"; const char* maxdisp_opt = "--max-disparity=1024"; const char* blocksize_opt = "--blocksize=3"; const char* nodisplay_opt = "--no-display"; const char* scale_opt = "--scale=1";

if(argc < 3)
{
    print_help();
    return 0;
}
const char* img1_filename = 0;
const char* img2_filename = 0;
const char* intrinsic_filename = 0;
const char* extrinsic_filename = 0;
const char* disparity_filename = 0;
const char* point_cloud_filename = 0;

enum { STEREO_BM=0, STEREO_SGBM=1, STEREO_HH=2, STEREO_VAR=3 };
int alg = STEREO_SGBM;
int SADWindowSize = 0, numberOfDisparities = 0;
bool no_display = false;
float scale = 1.f;

StereoBM bm;
StereoSGBM sgbm;
StereoVar var;

for( int i = 1; i < argc; i++ )
{
    if( argv[i][0] != '-' )
    {
        if( !img1_filename )
            img1_filename = argv[i];
        else
            img2_filename = argv[i];
    }
    else if( strncmp(argv[i], algorithm_opt, strlen(algorithm_opt)) == 0 )
    {
        char* _alg = argv[i] + strlen(algorithm_opt);
        alg = strcmp(_alg, "bm") == 0 ? STEREO_BM :
              strcmp(_alg, "sgbm") == 0 ? STEREO_SGBM :
              strcmp(_alg, "hh") == 0 ? STEREO_HH :
              strcmp(_alg, "var") == 0 ? STEREO_VAR : -1;
        if( alg < 0 )
        {
            printf("Command-line parameter error: Unknown stereo algorithm\n\n");
            print_help();
            return -1;
        }
    }
    else if( strncmp(argv[i], maxdisp_opt, strlen(maxdisp_opt)) == 0 )
    {
        if( sscanf( argv[i] + strlen(maxdisp_opt), "%d", &numberOfDisparities ) != 1 ||
            numberOfDisparities < 1 || numberOfDisparities % 16 != 0 )
        {
            printf("Command-line parameter error: The max disparity (--maxdisparity=<...>) must be a positive integer divisible by 16\n");
            print_help();
            return -1;
        }
    }
    else if( strncmp(argv[i], blocksize_opt, strlen(blocksize_opt)) == 0 )
    {
        if( sscanf( argv[i] + strlen(blocksize_opt), "%d", &SADWindowSize ) != 1 ||
            SADWindowSize < 1 ...