Qt run time error in using compute function of HOG descriptor

[d_stranz]

IplImage *oMatDeltaImage  = cvLoadImage("E:\\Wihart\\Car_Images\\(785).jpg",CV_LOAD_IMAGE_UNCHANGED);

IplImage *oMatDeltaImage  = cvLoadImage("E:\\Wihart\\Car_Images\\(785).jpg",CV_LOAD_IMAGE_UNCHANGED);

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How do you know that "oMatDeltaImage" is a valid pointer? I presume that if cvLoadImage() fails, it will return a NULL pointer. You don't check the return value, you simply use it in the next line and in SVM_classifier() and assume it is OK.

The debugger would probably have found your error in less time than it took to make your post.