IG_IP_DCRaw_white_point

Calculates white point corresponding to neutral color in camera color space based on two known color matrices corresponding to different light conditions.

Declaration:

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AT_ERRCOUNT ACCUAPI IG_IP_DCRaw_white_point_calculate ( AT_INT SrcChannelCount, HIGDoubleMatrix XYZToCam1, enumIGIlluminant Illuminant1, HIGDoubleMatrix XYZToCam2, enumIGIlluminant Illuminant2, const AT_DOUBLE* lpNeutralColor, AT_DPOINT* lpWhiteXY, );

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AT_ERRCOUNT ACCUAPI IG_IP_DCRaw_white_point_calculate (
        AT_INT SrcChannelCount,
        HIGDoubleMatrix XYZToCam1,      
        enumIGIlluminant Illuminant1,   
        HIGDoubleMatrix XYZToCam2,  
        enumIGIlluminant Illuminant2,   
        const AT_DOUBLE* lpNeutralColor,
        AT_DPOINT* lpWhiteXY,
);

Arguments:

Name	Type	Description
SrcChannelCount	AT_INT	Number of channels in the camera color space.
XYZToCam1	HIGDoubleMatrix	XYZ to camera matrix under Illuminant 1.
Illuminant1	enumIGIlluminant	Illuminant 1.
XYZToCam2	HIGDoubleMatrix	XYZ to camera matrix under Illuminant 2.
Illuminant2	enumIGIlluminant	Illuminant 2.
lpNeutralColor	const AT_DOUBLE*	Normalized coordinates of a neutral color.
lpWhiteXY	AT_DPOINT*	Returns the calculated white point coordinates.

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:

If only one color matrix is known, pass null to XYZToCam2.

Dimensions of XYZToCam1 and XYZToCam2 must be equal to (n, 3), where n is channel count of native cameracolor space (3 or 4). Number of entries in the lpNeutralColor array must be equal to channel count of native camera colorspace.