C# (OpenCV) 中的等效 Java Mat.put()

Question

I have been facing this line of code in a book(JAVA) many times. It seems like it sets matrix with hardcoded values.

Mat src = new Mat(4, 1, CvType.CV_32FC2); 
src.put(0, 0,
    0, 0, 
    img.width() - 1, 0, 
    0, img.height() - 1, 
    img.width() - 1, img.height() - 1 
); 

And couldn't find what is equivalent to .put method in C#. I have latest 4 version.

Answer 1

put method inserts data at starting position specified by row and column .

public int put(int row, int col, int[] data)

Equivalent in OpenCVSharp is

Mat src = new Mat(4, 1, MatType.CV_32FC2, 
    new [] 
    {
        0, 0, 
        img.Width - 1, 0, 
        0, img.Height - 1, 
        img.Width - 1, img.Height - 1 
    });

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