All Questions
Tagged with opencv image-processing
12,374
questions
0
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30
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How to identify the similarity(in %) between 2 "Black & White" only images / similarity between shapes ignoring colors?
I've searched all possible related keywords that I can think of, but the results are not really what I'm looking for, as most algorithm I found puts high concern on COLOR.
The idea of my application ...
-3
votes
0
answers
48
views
How to add horizontal lines to the table in image opencv
I want to add horizontal lines to the below image
resultant output should be like:
Any methods on how to work it out, even if there are diff images which don't have horizontal lines.
I've tried ...
- 19
4
votes
3
answers
166
views
Compromise between quality and file size, how to save a very detailed image into a file with reasonable size (<1MB)?
I am facing a small (big) problem: I want to generate a high resolution speckle pattern and save it as a file that I can import into a laser engraver. Can be PNG, JPEG, PDF, SVG, or TIFF.
My script ...
- 2,308
-2
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31
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how to open windows when ı run the computer_vision.py [closed]
ı didn't open the windows like frame,white_region,extended_midlane.. etc. I think ı wrote the codes correctly. but it can be mistake. I don't know.I'll share my codes with you.
this computer_vision.py
...
- 7
3
votes
1
answer
59
views
How can I optimize the process to find the best 4-sided shape that contains my mask?
I am currently working on a project where I need to detect pool table and pool balls from a video frame.
I then need to recreate the state of the game in a 2D mini-map, and in order to do so I need ...
- 43
0
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0
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33
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can opencv.js really find page corners
Has anyone had any success with opencv.js in finding page corners? There is a lot of noise on various discussion sites about it's ability - but I cannot find it to work when looking for a document ...
- 1,171
-2
votes
1
answer
66
views
Trouble detecting/removing two watermarks that vary location across image dataset
I have a problem with removing watermarks from a collection of images. The watermarks appear near each other but are different (see below). One watermark is a red square and has white text inside of ...
- 9
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31
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Circle detection and implementation of mask using Python [closed]
I am trying to detect cavities in an image and then create a mask. Then I want to use that mask on different images and extract the cavities from the images. I am able to create a general mask, but ...
-1
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0
answers
98
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How do I mark the differences between the two pictures with C++?
I want to compare the two images below, but none of the codes I have tried produce any meaningful output. Here are the pictures :
Orginal
Changed
Desired Result
First, the sizes of the pictures are ...
- 1
-3
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0
answers
76
views
What's the best/most robust way to check if 2 images are the same or very similar
I have some video recording of my screen where I am drawing some diagrams, but there are a lot of moments where the screen is idle. Because I am using Camtasia, the cursor is not saved directly on the ...
- 326k
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77
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Image stitching with opencv-python
So I've been trying to stitch some images together to create one big panorama but the Stitcher from OpenCV doesn't want to do so.
There's enough overlap on the images so the Stitcher should be able to ...
- 93
3
votes
1
answer
100
views
Break the curve wherever there is a significant change in the curve
Wherever there's a significant change in the curve, I need to break the curve with a break thickness of just 1 pixel (I just want to break the curves into multiple parts). I have attached an image for ...
0
votes
1
answer
61
views
What is the best way to draw an CV_8UC1 matrix image with Cairo?
I have a matrix image in the format CV_8UC1, i.e. one byte per pixel of monochrome image data. I need to draw this matrix image using Cairo, i.e. to a Gtk drawing area. Speed is critical, as this ...
- 273
1
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0
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51
views
Extra items while segmenting characters in license plate
I'm working on a license plate detection project which is mostly for educational purposes.
I have gone through some process to locate the license plate and applied perspective transform upon the ...
- 164
1
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0
answers
35
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detect objects in animation using blender`s depth camera and python`s OpenCV
I`m tring to get depth using depth camera of blender instead of cv2.StereoBM_create.compute and depth map looks so much better. but when get 3d points by it with using of a new function (depth_to_3d) ...
- 40