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2016-05-18 07:52:48 -0600 | asked a question | Basic operations on mat variable in android Initially i used MATLAB for testing my logic and it works smoothly in matlab. But now i want to implement the same in android with help of OpenCV. I am looking for a way to simply access the individual pixel values and do simple mathematical operations on the same (addition and multiplication). I found many answers online, but most of them have their specific set of probelm which they simply solved by using some method already available in openCV. Any help would be very helpful. |
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2016-04-09 06:37:24 -0600 | answered a question | Can someone help me and give an android example that use opencv machine learning with java code Well for starters you can start from here. I hope that helps. Even i am trying to do something similar so keep posting the update/progress. |
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2015-07-19 06:29:35 -0600 | commented question | Unable to compile program due to dependencies @berak can i have your email id. we tried to fresh install openCV and try to compile again but no luck. We came to conclusion of comparing our flags after installation. We compared our CMakeCache.txt files and we find there are huge amount of differences. But i am not sure what that means. So i you can provide me your emailID, i can share the txt files. |
2015-07-09 22:02:29 -0600 | commented question | Unable to compile program due to dependencies Yes these are just bits of code so it wont compile. Another thing is i believe there is no problem with the code itself, because the same code without any face:: namespace declaration compiles smoothly on my friends laptop (the system on which we were originally working). I took the codes to test on my end and wasn't even able to compile it. Then i also gave a try of compiling it on different system, but no luck. |
2015-07-09 10:58:05 -0600 | commented question | Unable to compile program due to dependencies I added the namespace declaration but i keep getting the same error as before. error: ‘face’ cannot appear in a constant-expression cv::Ptr<face::facerecognizer> model, mouthModel; and yes i have also added face:: to all the places where its model = createEigenFaceRecognizer(); or mouthModel = createEigenFaceRecognizer(); |
2015-07-09 08:35:01 -0600 | received badge | ● Editor (source) |
2015-07-09 05:35:27 -0600 | asked a question | Unable to compile program due to dependencies Command used to compile the code:- disguise_gui_1306.cpp:102:9: error: ‘FaceRecognizer’ was not declared in this scope cv::Ptr<facerecognizer> model, mouthModel; ^ disguise_gui_1306.cpp:102:23: error: template argument 1 is invalid cv::Ptr<facerecognizer> model, mouthModel; ^ disguise_gui_1306.cpp:102:30: error: invalid type in declaration before ‘,’ token cv::Ptr<facerecognizer> model, mouthModel; ^ disguise_gui_1306.cpp: In function ‘void snapshotCB(Fl_Widget, void)’: disguise_gui_1306.cpp:233:40: error: base operand of ‘->’ is not a pointer int predictedMouthLabel = mouthModel->predict(testSample); ^ disguise_gui_1306.cpp:243:31: error: base operand of ‘->’ is not a pointer int predictedLabel = model->predict(testSample); ^ disguise_gui_1306.cpp:261:29: error: base operand of ‘->’ is not a pointer int predictedLabel = model->predict(testSample); ^ disguise_gui_1306.cpp: In function ‘void trainFaceRecogniserModel(std::vector<cv::mat>, std::vector<int>)’:
disguise_gui_1306.cpp:395:39: error: ‘createEigenFaceRecognizer’ was not declared in this scope
model = createEigenFaceRecognizer(); disguise_gui_1306.cpp:396:10: error: base operand of ‘->’ is not a pointer model->train(img, lab); ^ disguise_gui_1306.cpp: In function ‘int main(int, char**)’: disguise_gui_1306.cpp:417:39: error: ‘createEigenFaceRecognizer’ was not declared in this scope
model = createEigenFaceRecognizer(); disguise_gui_1306.cpp:418:10: error: base operand of ‘->’ is not a pointer model->train(images, labels); ^ disguise_gui_1306.cpp:433:15: error: base operand of ‘->’ is not a pointer mouthModel->train(mouthimages, mouthlabels); I have tried using:- cv::Ptr<face::facerecognizer> model, mouthModel; error: ‘face’ cannot appear in a constant-expression cv::Ptr<face::facerecognizer> model, mouthModel; The same code compiles perfectly on my friends laptop,and the only difference i am able to understand is he have installed opencv in usr/local while i have the same in downloads folder. Kindly help,because i have been stuck around this from couple of days. I have even installed extra folders from https://github.com/itseez/opencv_contrib, but no difference. These are relevant parts of code, I am trying to detect a mouth and face and then create a database of the same. (more) |
2015-07-09 05:01:18 -0600 | commented question | installing extra modules Ok....I was thinking of the same. Thank you. Appreciate your prompt reply :-) |
2015-07-09 04:43:20 -0600 | commented question | installing extra modules I actually tried that, but i get the following error. error: ‘face’ cannot appear in a constant-expression cv::Ptr<face::facerecognizer> model, mouthModel; |
2015-07-09 04:10:30 -0600 | commented question | installing extra modules I installed the modules successfully. But still i am getting the same error.. ie:It have not solved the problem i was originally facing,which is error: ‘FaceRecognizer’ was not declared in this scope cv::Ptr<facerecognizer> model, mouthModel; To which i was suggested to install the extra modules. But that doesnt seem to help either. |
2015-07-09 02:31:27 -0600 | commented question | installing extra modules guidance or explanation of what exactly is happening would be also of great help. thank you |
2015-07-09 02:30:59 -0600 | asked a question | installing extra modules Hi there, I am facing the same problem. But i am little confused with the instructions. $ cd <opencv_build_directory> $ cmake -DOPENCV_EXTRA_MODULES_PATH=<opencv_contrib>/modules <opencv_source_directory> $ make -j5 which is build directory, opencv contrib and opencv source directoy. As far as i am able to get it build_directory:- is directory in which i made the build folder while installing opencV. in my case it will be "Downloads/opencv-3.0.0-rc1/build" opencv_contrib :- is the folder which i downloaded from git. in my case "Downloads/opencv_contrib-master" source_directory :- i am not getting any clue here,my guess is its in "usr/local/include/opencv2" ?? I have tried options but nothing seem to solve my problem. Please help me out here. Thank you |
2015-07-09 02:30:59 -0600 | answered a question | Add Modules from opencv_contrib to opencv 3.0 Hi there, I am facing the same problem. But i am little confused with the instructions. $ cd <opencv_build_directory> $ cmake -DOPENCV_EXTRA_MODULES_PATH=<opencv_contrib>/modules <opencv_source_directory> $ make -j5 which is build directory, opencv contrib and opencv source directoy. As far aa i am able to get it build_directory:- is directory in which i made the build folder while installing opencV. opencv_contrib :- is the folder which i downloaded from git. source_directory :- i am not getting any clue here,my guess is its in "usr/local/include/opencv2" ?? Please helpme out here. Thank you |