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Hi all,

I try to understand the letter recognition sample of OpenCV and i'm stuck on this line

        int cls_label = responses.at<int>(i) - 'A';

Can somebody explain what this line means ?

Thank you !

Hi all,

I try to understand the letter recognition sample of OpenCV and i'm stuck on this line

        int cls_label = responses.at<int>(i) - 'A';

Can somebody explain what this line means ? more precisely what this 'A' is doing here ?

Thank you !

Hi all,

I try to understand the letter recognition sample of OpenCV and i'm stuck on this line

        int cls_label = responses.at<int>(i) - 'A';

Can somebody explain what this line means ? more precisely what this 'A' is doing here ?

Thank you !