* @param overallEstModuleSize estimated module size so far
* @param estAlignmentX x coordinate of center of area probably containing alignment pattern
* @param estAlignmentY y coordinate of above
- * @param allowanceFactor number of pixels in all directons to search from the center
+ * @param allowanceFactor number of pixels in all directions to search from the center
* @return {@link AlignmentPattern} if found, or null otherwise
* @throws ReaderException if an unexpected error occurs during detection
*/