68 QImage
faxG4Decode(
const QByteArray &data,
int width,
int heightEstimate=0);
140 QByteArray
zlibUncompress(
const QByteArray &src, quint64 estimatedOutputSize=0);
QImage faxG4Decode(const QByteArray &data, int width, int heightEstimate=0)
Decompresses a bitonal image following the CCITT Group 4 compression standard.
This namespace gathers static methods for data compression and decompression.
zlibCompressionStrategy
Compression strategy.
QByteArray zopfliCompress(const QByteArray &src)
Compresses a QByteArray using zopfli.
QByteArray zlibUncompress(const QByteArray &src, quint64 estimatedOutputSize=0)
Uncompresses a QByteArray using zlib.
QByteArray faxG4Encode(const QImage &image)
Compresses a bitonal image following the CCITT Group 4 compression standard.
The default strategy is best for general data.
QByteArray zlibCompress(const QByteArray &src, zlibCompressionStrategy strategy=standard)
Compresses a QByteArray using zlib.
Strategy for data thar consists mostly of small values with a somewhat random distribution.