public crop ( int left, int top, int width, int height ) : ZXing.LuminanceSource | ||
left | int | The left coordinate, 0 <= left < Width. |
top | int | The top coordinate, 0 <= top <= Height. |
width | int | The width of the rectangle to crop. |
height | int | The height of the rectangle to crop. |
return | ZXing.LuminanceSource |