How to display Vec3b single ?

Nbb
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I have a cv::Mat color and to print the color I use cout << color.at<cv::vec3b>(row,col); It gives me [100,100,100].

but when I use cout << color.at<cv::vec3b>(row,col)[0] I get weird characters.

Seems like this works

uint8_t r = color.at<cv::Vec3b>(row,col)[0]
cout << unsigned(r);

1 answer

Vec3b is an array of char : you have to convert to int:

cout << static_cast<int>(color.at<cv::vec3b>(row,col)[0] );

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Asked: 2017-02-08 04:36:09 -0600

Seen: 1,493 times

Last updated: Feb 08 '17