$binarizer
$binarizer :
This class is the core bitmap class used by ZXing to represent 1 bit data. Reader objects accept a BinaryBitmap and attempt to decode it.
getBlackRow( $y, $row) : \Zxing\The
Converts one row of luminance data to 1 bit data. May actually do the conversion, or return cached data. Callers should assume this method is expensive and call it as seldom as possible.
This method is intended for decoding 1D barcodes and may choose to apply sharpening.
| $y | ||
| $row |
if row can't be binarized
array of bits for this row (true means black).
getBlackMatrix() : \Zxing\The
Converts a 2D array of luminance data to 1 bit. As above, assume this method is expensive and do not call it repeatedly. This method is intended for decoding 2D barcodes and may or may not apply sharpening. Therefore, a row from this matrix may not be identical to one fetched using getBlackRow(), so don't mix and match between them.
if image can't be binarized to make a matrix
2D array of bits for the image (true means black).
crop( $left, $top, $width, $height) : \Zxing\A
Returns a new object with cropped image data. Implementations may keep a reference to the original data rather than a copy. Only callable if isCropSupported() is true.
| $left | ||
| $top | ||
| $width | ||
| $height |
cropped version of this object.
Loading…