TBinaryBitmap.getBlackRow Method
Definition
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.
Delphi
function getBlackRow(y: Integer; row: IBitArray): IBitArrayParameters
- y
- Integer
The row to fetch, which must be in [0, bitmap height).
- row
- IBitArray
An optional preallocated array. If null or too small, it will be ignored. If used, the Binarizer will call BitArray.clear(). Always use the returned object.
Returns
IBitArray
The array of bits for this row (true means black).