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I’m using the LBPHFaceRecognizer and I understand from reviewing bug 3514 that the correct Chi-Square distance should be CV_COMP_CHISQR_ALT. However, the only Chi-Square distance available in the opencv version 2.4.11 I’m using is CV_COMP_CHISQR. Has anyone compared recognition results for these two Chi-Square distance measures in a controlled way? What prediction errors can I expect if I don’t use the new Chi-Square distance? Finally, is there a way to specify which distance measure to use for the LBPHFaceRecognizer model? WJS

I’m using the LBPHFaceRecognizer and I understand from reviewing bug 3514 that the correct Chi-Square distance should be CV_COMP_CHISQR_ALT. However, the only Chi-Square distance available in the opencv version 2.4.11 I’m using is CV_COMP_CHISQR. Has anyone compared recognition results for these two Chi-Square distance measures in a controlled way? What prediction errors can I expect if I don’t use the new Chi-Square distance? Finally, is there a way to specify which distance measure to use for the LBPHFaceRecognizer model? WJS