How can I create histogram from a set of values in OpenCV?
I have a text file which consist of several values. These values represent distance from origin to any point in the triangle. How can I create histogram from these values? Is there any functions in OpenCV which can create histogram from these values? Below my sample values are given:
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3.4 1.2 6.9 0.2 5.1 2.9
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Re: How can I create histogram from a set of values in OpenCV?
I tried in this way , but output is not acceptable.
Code:
int main(.......)
{
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double histogram_sample[1][6]={1.0,2.0,3.0,4.0,1.0,2.0};
Mat histogram(1,6,CV_64F,(void*)histogram_sample);
int histSize = 4;
float range[] = { 1.0, 4.0 } ;
const float* histRange = { range };
bool uniform = true; bool accumulate = false;
Mat hist;
calcHist( &histogram, 1, 0, Mat(), hist, 1, &histSize, &histRange, uniform, accumulate );
cout<<"hist:"<<hist<<endl;
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}
Output: hist:[0;0;0;0]