public Rect getCropRect() {
        return cropRect;
    }
@param data the image data
@param dataWidth width of the data
@param dataHeight height of the data
@param imageFormat ImageFormat.NV21 or ImageFormat.YUY2
@param rotation camera rotation relative to display rotation, in degrees (0, 90, 180 or 270).
zxing-android-embedded/src/com/journeyapps/barcodescanner/SourceData.java