CODEWITHSUNDEEP
c++visual-studio-2010opencv
Masochist
Masochist

Reputation: 399

How to use CvAvgSdv in openCV + VS 2010

I read from this thread - Get most accurate image using OpenCV - that I can use variance to measure which of the input images are the sharpest. I can't seem to find a tutorial for this. I am very new to openCV. Right now, my code scans images from a folder and stores them using vector

for (int ct = 0; ct < images.size() ; ct++) {
    //should i put the cvAvgSdv function here?
    waitKey(0);
}

Thank you for any help!

Update: I called this fxn: cvAvgSdv(images[ct],&scalar_mean,&std_dev); and it gave me an error: No suitable conversion function from cv::Mat to const cvArr * exists.

Can I use the fxn without converting the Mat to iplImage? If not, what's the easiest way to convert the Mat?

Upvotes: 0

Views: 1950

Answers (1)

slggamer
slggamer

Reputation: 217

yes, it is. you should calc like this:

CvScalar mean, std_dev; 
cvAvgSdv(img,&mean,&std_dev,NULL);

Upvotes: 1

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