Questions - OpenCV Q&A Forum

758

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no

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7

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2015-01-16 05:47:52 -0600 ricbra

Is it possible to identify fish by scale pattern with OpenCV? [closed]

6k

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2

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4

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2015-03-12 02:48:02 -0600 chengweige

Shape matching using fourier descriptor - Frequency domain

849

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no

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3

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2014-03-11 00:17:42 -0600 ram

shape detection and 3d model

shapedetection

440

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1

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2016-01-25 11:04:40 -0600 spyderespirt0

Why do I keep getting rotated rect's when they are circles? [closed]

572

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1

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1

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2016-01-27 18:12:55 -0600 SR

edge corners are not sharp with canny filter

236

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1

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2016-09-22 04:14:12 -0600 astronaut

How to detect heptagon object?

shapedetection

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1

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2016-11-28 09:12:30 -0600 berak

how to detect shape of polygons after canny edge detection

shapedetection

1k

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1

answer

1

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2017-08-21 11:43:36 -0600 m3rt

Detecting 16 squares in a live video in Python

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1

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2017-11-17 08:06:30 -0600 jetsports

Best method to detect darts in a dartboard from above

200

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1

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2018-01-19 22:49:24 -0600 CristianF

Simplest shape detection with orientation

547

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1

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2018-02-12 12:07:23 -0600 ya_ocv_user

Have we chosen a viable approach? Wood ring orientation recognition

2k

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2

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1

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2018-02-14 05:07:06 -0600 VxW

Detect crossing lines at a single point

2k

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1

answer

1

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2020-09-10 01:13:30 -0600 sturkmen

Replace Color of Components that have specific color and are have transparent pixels as neighbours

180

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2014-04-10 05:10:25 -0600 john1991

Object Recognition question please help [closed]

427

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2014-06-03 04:23:42 -0600 berak

javacv compare 2 custom shapes

777

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1

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no

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2014-10-17 04:08:13 -0600 berak

Identify irregular forms.

shapedetection

764

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2015-05-02 04:44:49 -0600 cza-57

Matching shapes (especially characters) based on their histograms [closed]

801

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2015-06-02 09:05:06 -0600 rohit.guitar

Weed extraction algorithm 2D images

shapedetection

1k

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2015-07-07 11:34:26 -0600 Eduardo

How Does Contour Extraction Work?

340

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1

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2015-10-05 02:05:39 -0600 David_86

Shape detection, why try several threshold levels?

539

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2015-10-10 04:52:38 -0600 bendesign55

Shape from motion or shape from silhouette?

872

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2015-12-27 12:58:40 -0600 zaloo

Object classification for rock paper scissors

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2016-01-25 12:54:07 -0600 spyderespirt0

How to detect an ellipse? [closed]

1k

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1

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2016-10-01 11:05:13 -0600 berak

Problem with contourArea return value

612

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1

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2016-11-17 00:42:04 -0600 berak

Hi.. i'm new to opencv and trying shape detection. I have faced the following error "Unhandled exception (opencv_imgproc243d.dll) in ShapeDetection.exe " Can anyone knows how to solve this???

286

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1

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2016-12-14 17:46:01 -0600 Tetragramm

Detection of the ceiling lighting shape

1k

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1

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2016-12-23 02:12:47 -0600 Balaji R

Shape identification C++

shapedetection

507

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1

answer

no

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2017-07-02 05:00:17 -0600 KjMag

How to isolate an arbitrary shape from noise?

shapedetection

452

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no

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no

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2017-09-18 13:13:00 -0600 JamieCorkhill

How can I use the Imgproc.findContours() method only on a certain portion of an image, and not the whole image? [closed]

840

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1

answer

-1

votes

2017-10-05 06:43:00 -0600 LBerger

37 questions

Is it possible to identify fish by scale pattern with OpenCV? [closed]

Shape matching using fourier descriptor - Frequency domain

shape detection and 3d model

Why do I keep getting rotated rect's when they are circles? [closed]

edge corners are not sharp with canny filter

How to detect heptagon object?

how to detect shape of polygons after canny edge detection

Detecting 16 squares in a live video in Python

Best method to detect darts in a dartboard from above

Simplest shape detection with orientation

Have we chosen a viable approach? Wood ring orientation recognition

Detect crossing lines at a single point

Replace Color of Components that have specific color and are have transparent pixels as neighbours

Object Recognition question please help [closed]

javacv compare 2 custom shapes

Identify irregular forms.

Matching shapes (especially characters) based on their histograms [closed]

Weed extraction algorithm 2D images

How Does Contour Extraction Work?

Shape detection, why try several threshold levels?

Shape from motion or shape from silhouette?

Object classification for rock paper scissors

How to detect an ellipse? [closed]

Problem with contourArea return value

Hi.. i'm new to opencv and trying shape detection. I have faced the following error "Unhandled exception (opencv_imgproc243d.dll) in ShapeDetection.exe " Can anyone knows how to solve this???

Detection of the ceiling lighting shape

Shape identification C++

How to isolate an arbitrary shape from noise?

How can I use the Imgproc.findContours() method only on a certain portion of an image, and not the whole image? [closed]

How to detect the same object with different shapes in an image?

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