The Color Conversion C API provides a color space dialog that can be used to initialize a conversion. To do a dialog based initialization follow the steps below:
Define the following global variables:
HANDLE ClrHandle;
L_UCHAR *pRGBData;
L_UCHAR *pLABData;
L_INT nWidth;
L_INT nHeight;
L_INT nInAlign;
L_INT nOutAlign;
Display the color space dialog box to initialize as follows:
L_ClrDlg(DLG_LAB, NULL, &ClrHandle, NULL);
Convert from RGB to CIELab as follows:
L_ClrConvert(ClrHandle, pRGBData, pLABData, nWidth, nHeight, nInAlign, nOutAlign);
At the end, free the color conversion handle:
L_ClrFree(ClrHandle);
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