Re: [Lcms-user] Trouble with converting rgb to lab

2008-12-14 Thread Kai-Uwe Behrmann
XIAOCAO, did you test all the intermediate results for existence, e.g. if(!hInProfile) { error = 1; exit error; } and so on. The next would be to look at the input and output buffers content. Step 5, personally I never needed. kind regards Kai-Uwe Behrmann -- developing for colour management

[Lcms-user] Trouble with converting rgb to lab

2008-12-02 Thread XIAOCAO
HI, I have trouble with converting some couples of RGB pixels into CIELAB color space based on an rgb icc profile(eg. sRGB.icm). I take the following steps: Here are some variables: unsigned char *bufferIn; WORD *bufferOut; cmsCIELab lab; WORD wlab[3]; 1) open a rgb pr