How can i crop image on runtime?

[192661-원본-이미지.png|192661]

[192662-마스크-적용.png|192662]

First one is original image and second one is masked image i wanna crop.
i wanna crop original image in second image frame

Easiest way to enable and disable Mask component

public Mask mask;

public void EnableMask()
{
      mask.enabled = true;
}

@awesomepiaDev