The QImage class provides a hardware-independent pixmap representation with direct access to the pixel data. ... QImage  ( const QSize &, int depth, int numColors=0, Endian bitOrder=IgnoreEndian )  . ... QRgb  color  ( int i ) const . ... QRgb  pixel  ( int x, int y ) const . ... Use the qRed, qGreen and qBlue functions ( qcolor.h ) to access the components, and qRgb to make an RGB triplet (see the QColor class documentation). 1-bpp (monochrome) images have a color table with maximum 2 colors. ...