Questions - OpenCV Q&A Forum

492

views

no

answers

1

vote

2016-03-11 12:36:53 -0600 mihirranadive

camera preview from opencv shows bad/incorrect image. using javacameraview

3k

views

1

answer

no

votes

2015-08-30 04:56:30 -0600 berak

Null object reference while trying to show image on emulator, OpenCV4Android

407

views

1

answer

no

votes

2016-04-10 22:44:17 -0600 Tetragramm

Using OpenCV4Android, how to blur a part of an image?

1k

views

1

answer

no

votes

2016-04-20 08:43:08 -0600 sturkmen

How to create an ROI (Region-Of-Interest or submat) from a contour?

411

views

1

answer

no

votes

2016-06-27 14:51:16 -0600 Solace

Why is the drawContour() in OpenCV generating this strange Mask?

215

views

no

answers

no

votes

2016-06-24 13:12:11 -0600 jojo94

how to use opencv4android pca to train svm model? [closed]

750

views

1

answer

no

votes

2016-06-26 09:38:52 -0600 sturkmen

How to draw contours INSIDE the edges of detected shape/blob?

1k

views

1

answer

no

votes

2016-06-28 00:02:26 -0600 berak

Converting histogram Mat to BitMap - Getting OpenCV Error (src.type() == CV_8UC1 || src.type() == CV_8UC3 || src.type() == CV_8UC4)

880

views

1

answer

no

votes

2016-06-26 18:46:10 -0600 Solace

Why does calcHist() method create an empty black histogram Mat?

776

views

no

answers

no

votes

2016-06-26 18:44:38 -0600 Solace

Why am I getting this Assertion Failed error in my calcHist() call? [closed]

3k

views

1

answer

no

votes

2016-07-23 10:27:27 -0600 Solace

Is it possible to overlay a transparent image over a live camera view, such that it is overlayed over the captured photo as well?

24k

views

2

answers

no

votes

2016-10-11 02:19:27 -0600 berak

12 questions

camera preview from opencv shows bad/incorrect image. using javacameraview

Null object reference while trying to show image on emulator, OpenCV4Android

Using OpenCV4Android, how to blur a part of an image?

How to create an ROI (Region-Of-Interest or submat) from a contour?

Why is the drawContour() in OpenCV generating this strange Mask?

how to use opencv4android pca to train svm model? [closed]

How to draw contours INSIDE the edges of detected shape/blob?

Converting histogram Mat to BitMap - Getting OpenCV Error (src.type() == CV_8UC1 || src.type() == CV_8UC3 || src.type() == CV_8UC4)

Why does calcHist() method create an empty black histogram Mat?

Why am I getting this Assertion Failed error in my calcHist() call? [closed]

Is it possible to overlay a transparent image over a live camera view, such that it is overlayed over the captured photo as well?

How to initialize a Mat object with zeros

Links

Contributors

Tags