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20160523 00:40:43 0500  answered a question  Expectation Maximization: logarithm likelihood > 0 I have asked this question on stack overflow and has been answered : http://stackoverflow.com/questions/14... Here is the copy of the answer given in stackoverflow:

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20140922 02:38:12 0500  commented question  Expectation Maximization: logarithm likelihood > 0 @CalumMurray I haven't discover any solution about that. I also post the question in stackoverflow http://stackoverflow.com/questions/14230377/opencvoutputofthepredictfunctionofexpectationmaximization But didn't get any success... If you find the solution, please post it, thank's. 
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20130218 03:06:28 0500  commented answer  dot product Mat matrices Yes, you're right. Just I was confused that a dot product of matrices is a matrix multiplication which gives a matrix as output. And the dot product from openCV gives a scalar (as it treats matrices as vectors). But as OP is asking for cvDotProduct, there is no ambiguity. 
20130215 02:29:04 0500  commented answer  dot product Mat matrices For me, dot for matrices is matrix multiplication (I may wrong). Mat::dot is for vector in a Mat. Is the OP asking for a matrix multiplication or a dot between 2 vectors ? 
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20130214 18:41:07 0500  asked a question  Expectation Maximization: logarithm likelihood > 0 I try to find the propability of a pixel from one image (ImageCurrent.tif, see at the end) to belongs of the foreground and background of another image (ImageFormer.tif). Therefore, I create 2 GMMs (Gaussian Mixture Model) from one image with seperate foreground and background (using a mask). Then I used the predict function of the Expectation Maximization from OpenCV. When I get back the logarithm likelihood of the predict function, I have sometimes values >0 which is for me strange as the probability should be between 0 and 1 (so the log likelihood should be <=0). Is someone have experiment this kind of problem ? And how can I resolve it ? Here is a test program showing the problem: I tried the program with the followings images: : http://postimage.org/image/eatsc71lj/ : http://postimage.org/image/sz4ona21j/ :http://postimage.org/image/xjquwak0v/ EDIT: Is this can be a bug from OpenCV ? As I'm not sure if it is normal or not, I don't know if I should open a ticket. 