The Crop filtercuts the image on the indicated coordinates.
With the help of this transformation it is possible to improve the composition after the exercised capture, for example, having cut the empty space of the photo and the image, or extra objects which got into the frame. It is also possible to cut out a certain object.
ROI parameter – area of the image cutting. In the parameter it is possible to define X coefficients (cutting on the horizontal), Y coefficient (on the vertical), Width and Height.