wlucas-DFT

Mat centerCropMat(const cv::Mat& image, double cropPercentage)
{
	cropPercentage = min(cropPercentage, 1.0);

	int newRows = (int)floor(image.rows * cropPercentage + 0.5);
	int newCols = (int)floor(image.cols * cropPercentage + 0.5);
	Point center(image.cols / 2, image.rows / 2);

	Rect roi(
		center.x - (newCols / 2),