Questions - OpenCV Q&A Forum

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2019-08-28 13:46:21 -0600 invernie

findContours approach in Python open-cv returns different results on the same image depending on when the masked is applied [closed]

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2016-10-03 00:49:56 -0600 berak

keeping the alpha channel in transparent image mat

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2017-06-29 19:56:11 -0600 Tetragramm

Overlaying masked image over another?

overlay
mask

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2019-10-10 08:24:10 -0600 nicolasabril

Error while working with contours

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2020-09-27 09:11:36 -0600 Chris

How to color the pixels in an image depending on whether they are inside/outside a zone/circle?

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2013-02-13 02:09:44 -0600 Mathieu Barnachon

Video mask in OpenCV

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2013-07-07 07:00:40 -0600 pheips

FeatureDetector with mask input (third parameter)

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2013-05-30 10:18:18 -0600 william

Output image which combine pixels from different smoothing filter mask

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2013-06-09 14:09:30 -0600 user1446598

How to save only ROI pixels in a Mat using a binary mask?

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2013-06-11 08:43:31 -0600 unxnut

Check if binary mask is not empty?

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2013-07-29 14:21:06 -0600 LadyZayin

MatchTemplate on a single color [closed]

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2013-08-27 03:07:31 -0600 lenteken

Best method to count the black and white pixels of the image.

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2013-09-06 03:13:12 -0600 SergioBasurco

Transparent border after calibration

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2013-09-10 08:30:01 -0600 abrykt

Surf and masks

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2013-11-18 10:55:30 -0600 Pedro Batista

How to get values of a Matrix which are non zero

setTo
mask

775

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2013-12-09 05:39:43 -0600 Haris

Hello Friends, How can i create a mask image in opencv and create trimap segments. Please guide its urgent.

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2014-02-27 02:49:37 -0600 StevenPuttemans

I need an equalization function with mask like this: equalizeHist(src, dst, mask)

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2014-04-14 08:42:27 -0600 ntb-werz

set color transparent in the android camera preview

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2014-10-07 07:42:22 -0600 JNI

Thresholding + masking image erratic results

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2015-02-10 01:49:08 -0600 Rajind

Getting masked area to be transparent ?

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2015-03-19 04:18:16 -0600 Guanta

Does a mask in "detectandcompute" restrict feature point center (pt), or contributing pixels (to the calculation of the feature point)

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2015-03-22 08:33:34 -0600 215

Making a mask that is dynamic.. [closed]

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2015-05-01 05:40:02 -0600 PeppertunaOfTradeDay

Question of maskgenerator class [closed]

mask

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2015-05-09 20:04:37 -0600 215

Overrule the OpenCV exception [closed]

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2019-02-12 05:24:41 -0600 LBerger

How to Multiply cv::Mat with mask

463

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2015-10-13 07:27:59 -0600 StevenPuttemans

Shouldn't Mat::copyTo be documented with the type of mask?

mask
masking

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2015-10-25 13:21:23 -0600 LorenaGdL

Extracting objects from background with watershed

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2015-11-06 09:35:39 -0600 vitruvius

How to draw contours of each segmented object [closed]

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2016-03-07 04:44:51 -0600 Pedro Batista

Blurring non-rectangular region of an image, then downsample whole image

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1

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2016-04-11 14:10:52 -0600 LBerger

94 questions

findContours approach in Python open-cv returns different results on the same image depending on when the masked is applied [closed]

keeping the alpha channel in transparent image mat

Overlaying masked image over another?

Error while working with contours

How to color the pixels in an image depending on whether they are inside/outside a zone/circle?

Video mask in OpenCV

FeatureDetector with mask input (third parameter)

Output image which combine pixels from different smoothing filter mask

How to save only ROI pixels in a Mat using a binary mask?

Check if binary mask is not empty?

MatchTemplate on a single color [closed]

Best method to count the black and white pixels of the image.

Transparent border after calibration

Surf and masks

How to get values of a Matrix which are non zero

Hello Friends, How can i create a mask image in opencv and create trimap segments. Please guide its urgent.

I need an equalization function with mask like this: equalizeHist(src, dst, mask)

set color transparent in the android camera preview

Thresholding + masking image erratic results

Getting masked area to be transparent ?

Does a mask in "detectandcompute" restrict feature point center (pt), or contributing pixels (to the calculation of the feature point)

Making a mask that is dynamic.. [closed]

Question of maskgenerator class [closed]

Overrule the OpenCV exception [closed]

How to Multiply cv::Mat with mask

Shouldn't Mat::copyTo be documented with the type of mask?

Extracting objects from background with watershed

How to draw contours of each segmented object [closed]

Blurring non-rectangular region of an image, then downsample whole image

OpenCV mean function crashes with mask created from OpenCV threshold function?

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