Questions - OpenCV Q&A Forum

375

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2017-08-15 06:33:41 -0600 marcus

How to Surf Descriptors as input for a SVM Classifier

SURF
SVM

208

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no

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votes

2017-07-25 06:58:38 -0600 berak

Strange XML file behaviour

892

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2017-07-17 06:52:28 -0600 Nani

SVM cross validation parameters optimisation and accuracy

274

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no

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2017-06-19 13:20:53 -0600 nicolagrosu

Find specific shape drawn by user

244

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2017-06-14 09:35:37 -0600 shincodex

OpenCV 3.2 vs OpenCV 2.4.11 SVM trainer files and predict

SVM
ml

263

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no

answers

no

votes

2017-06-09 18:33:02 -0600 topherpalmtree

Loading OpenCV SVM from xml model on iOS gives incorrect alpha and support vector indices

613

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2017-05-25 03:29:36 -0600 Umar Farooq

Why does my custom HOG detector always draws a rectangle on the center of image even when I have obtained good accuracies on Test data?

1k

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2017-05-23 12:30:11 -0600 lanka

opencv 3.2 python svm problem

153

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2017-05-23 07:04:10 -0600 waschbaer

Got an error when re-training SVM.

SVM
training

147

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no

votes

2017-05-04 10:43:45 -0600 eipoa

is the sigmoid kernel in SVM same as it in LIBSVM?

741

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2017-05-02 04:36:58 -0600 eipoa

3.2.0 SVM OpenCV Error: Assertion failed (samples.cols == var_count && samples.type() == CV_32F) in predict, file C:/repo/mingw-w64-opencv/src/opencv-3.2.0/modules/ml/src/svm.cpp, line 1930

226

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2017-05-01 07:13:17 -0600 vidushig2

What should be default value of features for classification stored in csv file using svm classifciation

224

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2017-04-14 04:37:24 -0600 alexMm1

CHI2 response in opencv SVM

208

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no

answers

no

votes

2017-03-31 18:47:54 -0600 wolffang david

Implementation of svm multicalse opencv Phyton

SVM

272

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no

answers

no

votes

2017-02-27 05:49:18 -0600 Infinito

Error while saving trained SVM in OpenCV 3.2.0 Java

194

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no

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2017-02-16 06:55:09 -0600 drake7707

Add weights to samples in the training set?

adaboost
SVM

824

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no

answers

1

vote

2017-02-09 10:08:07 -0600 Nikolay

HOG and SVM Training and Testing Issues

710

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answers

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2016-11-26 07:04:26 -0600 Zahraa11

Saving or Loading model in SVM

147

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answers

no

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2016-11-21 16:37:14 -0600 aneksteind

Cannot detect a simple rectangle

SVM
HOG

142

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no

answers

no

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2016-11-18 06:05:15 -0600 Akash Garg

SVM predicting '1' for every test image.

opencv
SVM

676

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answers

no

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2016-11-16 14:47:37 -0600 aneksteind

Custom HOG not detecting features

197

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2016-11-02 04:26:49 -0600 johu

Is there a way to delete the uncompressed support vectors

142

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2016-10-17 20:31:25 -0600 hoangnh

Smile Detector in mobile development

55

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2016-10-07 13:07:21 -0600 bertumen.wj

In svm classifier if I train it with 3 classes can it detect if the image is not part of the Training classes?

SVM

996

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no

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no

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2016-09-19 12:14:32 -0600 Angulu

Support Vector Regression prediction values

113

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no

answers

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2016-09-10 05:38:14 -0600 bertumen.wj

can Bag of words + SVM identify banknote denomination?

SVM
BOW

1k

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no

answers

1

vote

2016-08-27 03:56:51 -0600 Angulu

Using PCA and LDA for dimensionality reduction for SVM

118

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answers

no

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2016-08-07 21:10:08 -0600 tiziran

Long exit from program (long runtime exit). after save SVM opencv it is take long time to exit program

1k

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no

answers

no

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2016-06-15 17:08:46 -0600 mcgrawjt

getDaimlerPeopleDetector vs. getPeopleDetector48x96 vs. custom SVM

634

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no

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no

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2016-05-31 09:24:34 -0600 HenryChen1620

123 questions

How to Surf Descriptors as input for a SVM Classifier

Strange XML file behaviour

SVM cross validation parameters optimisation and accuracy

Find specific shape drawn by user

OpenCV 3.2 vs OpenCV 2.4.11 SVM trainer files and predict

Loading OpenCV SVM from xml model on iOS gives incorrect alpha and support vector indices

Why does my custom HOG detector always draws a rectangle on the center of image even when I have obtained good accuracies on Test data?

opencv 3.2 python svm problem

Got an error when re-training SVM.

is the sigmoid kernel in SVM same as it in LIBSVM?

3.2.0 SVM OpenCV Error: Assertion failed (samples.cols == var_count && samples.type() == CV_32F) in predict, file C:/repo/mingw-w64-opencv/src/opencv-3.2.0/modules/ml/src/svm.cpp, line 1930

What should be default value of features for classification stored in csv file using svm classifciation

CHI2 response in opencv SVM

Implementation of svm multicalse opencv Phyton

Error while saving trained SVM in OpenCV 3.2.0 Java

Add weights to samples in the training set?

HOG and SVM Training and Testing Issues

Saving or Loading model in SVM

Cannot detect a simple rectangle

SVM predicting '1' for every test image.

Custom HOG not detecting features

Is there a way to delete the uncompressed support vectors

Smile Detector in mobile development

In svm classifier if I train it with 3 classes can it detect if the image is not part of the Training classes?

Support Vector Regression prediction values

can Bag of words + SVM identify banknote denomination?

Using PCA and LDA for dimensionality reduction for SVM

Long exit from program (long runtime exit). after save SVM opencv it is take long time to exit program

getDaimlerPeopleDetector vs. getPeopleDetector48x96 vs. custom SVM

Error using setSVMDetector of HOGDescriptor

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