private final int width;
private final int height;
- public LuminanceSource(int width, int height) {
+ protected LuminanceSource(int width, int height) {
this.width = width;
this.height = height;
}
/**
* Fetches one row of luminance data from the underlying platform's bitmap. Values range from
* 0 (black) to 255 (white). Because Java does not have an unsigned byte type, callers will have
- * to bitwise and with 0xff for each value. It is preferrable for implementations of this method
+ * to bitwise and with 0xff for each value. It is preferable for implementations of this method
* to only fetch this row rather than the whole image, since no 2D Readers may be installed and
* getMatrix() may never be called.
*