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answered 2015-07-14 01:55:19 -0600
invert every bit in an array
Converts an array to another data type with optional scaling.
updated 2015-08-15 14:05:13 -0600
Mat a=imread("lena.jpg",cv::IMREAD_UNCHANGED);
Mat b,c; bitwise_not(a,b); b.convertTo(c,CV_32F);