THotPDF.DecodeLoadedCCITTStream Method

Method summary: THotPDF.DecodeLoadedCCITTStream MethodCCITTFaxDecode image stream into a 24-bit bitmap

Declaration

function DecodeLoadedCCITTStream(AImageStream: THPDFStreamObject): TBitmap;

HPDFDoc

Name	Purpose
`AImageStream`	Loaded PDF stream object containing CCITT image data`CCITTFaxDecode`

Bitmap containing the decoded imageTBitmap, or nil when the stream parameters or encoded data are invalid

Group 3 one-dimensional, Group 3 mixed two-dimensional, and Group 4 rows are supported, including the T.4 and T.6 uncompressed extension codes
The decoder applies K, Columns, Rows, BlackIs1, EndOfLine, EncodedByteAlign, EndOfBlock, and DamagedRowsBeforeError from the resolved DecodeParms dictionary
Damaged-row recovery is available only when EndOfLine is true and K is non-negative; resynchronisation is bounded by the encoded stream length
The caller owns the returned bitmap instance