2013-06-06 20:03:22 -0500 asked a question Memory Leak (I think) When Loading Classifier into cv::gpu::CascadeClassifier_GPU Hi All, when trying to load a cascade classifier into cv::gpu::CascadeClassifier_GPU my application thread memory is jumping high over 1GB. Is just in my machine ? CascadeLoaded = cascade_gpu.load(cascadeName); I've started to debug the above line and found that inside the file:cascadeclasifier.cpp (Line 626) stage_mat.upload(cv::Mat(1, (int) (stages.size() * sizeof(Stage)), CV_8UC1, (uchar*)&(stages[0]) )); The Memory is bloated. I'm loading this classifier (LBP) https://raw.github.com/Itseez/opencv/master/data/lbpcascades/lbpcascade_frontalface.xml Hope it helps you to help me. Regards, Jackal. 2013-06-06 06:53:10 -0500 commented question Error when calling to detectMultiScale (HogDescriptor) With GPU. Thank you ... :) 2013-06-06 06:33:58 -0500 commented question Error when calling to detectMultiScale (HogDescriptor) With GPU. Thanks StevenPuttemans, Well i don't know what I've change (maybe with the initialization) but it start to pass the function with no error. but in general it still works slowly ? is there any chance to make it work faster ? 2013-06-06 04:37:20 -0500 commented question Error when calling to detectMultiScale (HogDescriptor) With GPU. Thanks for your answer, I've tried that like you wrote just to be sure, but it returns the same error. It seems like i have something missing. Does this function worked to anyone with GPU ? Do i need something special to be installed ? Thanks in advance, Jackal. 2013-06-05 07:58:37 -0500 commented question Error when calling to detectMultiScale (HogDescriptor) With GPU. I'm initiate it like this: cv::gpu::GpuMat ColorSRC = cv::gpu::GpuMat(myImageHIGHT,myImageWIDTH,CV_8UC4,&myColorImageMat); is it ok ? (I've the same error in it's inside path to 8UC4 and 8UC1) 2013-06-05 07:42:37 -0500 commented question Error when calling to detectMultiScale (HogDescriptor) With GPU. I don't know if it's the same. mine is calling the HogDescriptor::detectMultiScale and yours calling the CascadeClassifier::detectMultiScale .. But this is the exception i get ... This is the call : hog.detectMultiScale(ColorSRC, found); This is the exception: Unhandled exception at at 0x7543C41F in OnysusPlayer.exe: Microsoft C++ exception: cv::Exception at memory location 0x665AE388. 2013-06-05 07:09:56 -0500 received badge ● Editor (source) 2013-06-05 07:09:10 -0500 asked a question Error when calling to detectMultiScale (HogDescriptor) With GPU. Hello , I've compile the opencv 2.4.5 with Cuda5 and trying to implement the detectMultiScale Call. since i've got an error i started to debug it. and found that in hog.cu the error raised. if (correct_gamma) compute_gradients_8UC1_kernel<<>>(height, width, img, angle_scale, grad, qangle); else compute_gradients_8UC1_kernel<<>>(height, width, img, angle_scale, grad, qangle);  cudaSafeCall( cudaGetLastError() ); cudaSafeCall( cudaDeviceSynchronize() );  also i can't debug into the compute_gradients_8UC1_kernel does anyone has any idea ? Regards, Jackal.