neto's profile - activity

Yeh this fix problem, more precisely add "-loopencv_core" or any lib like "-lopencv_(THE LIB OPENCV NAME HERE)

How segment correctly the pupil and iris? I'm trying to target both the iris and pupil border using opencv's Canny Edge,

How segment correctly the pupil and iris? I'm trying to target both the iris and pupil border using opencv's Canny Edge,

My code for calculate the log of all pixels in an image:

int main(int argc, char** argv)
{


    //ABRE A IMAGEM->CINZA e MOSTRA
    Mat img = imread("img.jpg", IMREAD_GRAYSCALE);
    Mat dest;

    cv::log(img, dest);
    namedWindow("t");
    imshow("t", dest);
    if (waitKey(0) == 27) destroyAllWindows();
    return 0;
}

Output:

OpenCV: terminate handler is called! The last OpenCV error is:
OpenCV(3.4.2) Error: Assertion failed (depth == 5 || depth == 6) in cv::log, file c:\build\3_4_winpack-build-win64-vc15\opencv\modules\core\src\mathfuncs.cpp, line 701

Assertion erro in log operation My code for calculate the log of all pixels in an image: int main(int argc, char** argv

ops, sorry

Assertion erro in log operation My code for calculate the log of all pixels in an image: int main(int argc, char** argv

Assertion erro in log operation My code for calculate the log of all pixels in an image: int main(int argc, char** argv

Is a simple program for add +30 in intesitys, but it stop during the 'for'

#include "stdafx.h"


#include < opencv2/opencv.hpp >

#include < iostream >

#include < opencv2/imgproc/imgproc.hpp >


using namespace cv;

using namespace std;

Vec3b logPoint(Vec3b RGB) {
    Vec3b res;
    res[0] = RGB[0]+30;
    res[1] = RGB[1]+30;


    return res;
}

int main(int argc, char** argv)
{


    //ABRE A IMAGEM->CINZA e MOSTRA
    Mat img = imread("img.jpg", IMREAD_GRAYSCALE);
    Mat dest(img.size().width, img.size().height,CV_8SC1);



for (int i = 0; i-1 < img.rows; i++) {
    for (int j = 0; j-1 < img.cols; j++) {
        Vec3b pixel = img.at<Vec3b>(i,j);
        dest.at<Vec3b>(i, j) = logPoint(pixel);

        //cout << logPoint(pixel)[0] << "|" << logPoint(pixel)[1]<<endl;

    }
}

namedWindow("img", WINDOW_AUTOSIZE);
imshow("img", img);
if(waitKey(0) == 27) destroyAllWindows();


return 0;

}

but why is 'for' not recommended? and I should do what to optimize an operation p to p that is not a simple sum, for exa

but why is not the use of 'for' recommended? and I should do what to optimize an operation p for p

Yep, I noticed this after, this code is only for theories practices . Thanks for your help!

unexpected error during execution Is a simple program for add +30 in intesitys, but it stop during the 'for' #include "