colRange method

Mat colRange(
  1. int start,
  2. int end
)

Creates a matrix header for the specified column span.

The method makes a new header for the specified column span of the matrix. Similarly to Mat::row and Mat::col , this is an O(1) operation.

https://docs.opencv.org/4.x/d3/d63/classcv_1_1Mat.html#aadc8f9210fe4dec50513746c246fa8d9

Implementation

Mat colRange(int start, int end) {
  final p = calloc<cvg.Mat>();
  cvRun(() => cffi.Mat_colRange(ref, start, end, p));
  final dst = Mat._(p);
  return dst;
}