IG_IP_DCRaw_tone_LUT

Builds tone correction LUT.

Declaration:

	Copy Code
AT_ERRCOUNT ACCUAPI IG_IP_DCRaw_tone_LUT_build ( AT_INT ChannelDepth, AT_DOUBLE Exposure, AT_DOUBLE Shadows, HIGLUT* ToneLUT );

Arguments:

Name	Type	Description
ChannelDepth	AT_INT	Bit depth of the LUT.
Shadows	AT_DOUBLE	Amount by which to move the black point.
Exposure	AT_DOUBLE	Exposure compensation, in f/stops.
ToneLUT	HIGLUT*	Returns new LUT.

Return Value:

Returns the number of ImageGear errors that occurred during this function call.

Supported Raster Image Formats:

This function does not process image pixels.

Remarks:

The LUT moves image's black point by 2^16 / 1000 * Shadows, and adjusts white point according to Exposure parameter. Exposure parameter is measured in f/stops and works similar to modifying the camera exposure.