Description Compute the scaled/shifted LUT on the base of histogram and user parameters, for recolouring the pixel values, using linear transfer function. Scaling results in changing the contrast (gain), shifting results in changing the brightness (offset).
Syntax lRet = [BIFilter.]ComputeLUT hHist Mode hLUT Contrast Brightness Error
Remarks lRet LONGLONG Handle of the newly created DIB on success or 0 on failure.
hHist LONGLONG Handle to a histogram.(256 unsigned byte).
Mode Long Create, destroy or compute LUT.
OPEN - Create the LUT (30).
COMPUTE - Compute the actual LUT (31)
CLOSE - Destroy the LUT
hLUT LONGLONG Handle to LUT.(256 unsigned byte). If this paramter is set to zero, a new LUT, otherwise this handle will be returned.
Contrast Long Value of the contrast.
Brightness Long Value of the brightness.
Error short* Error code.
See Also