All Questions
Tagged with preprocessing image-processing
9
questions
0
votes
1
answer
2k
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Subtracting DC Offset a Complex Signal?
If I take the magnitude of a complex signal, and then subtract the mean amplitude, I remove DC offset but lose the real and imaginary components. How can I properly subtract the DC offset of a complex ...
- 11
3
votes
1
answer
208
views
correcting mirror ghosting effect
I have an application in which I have to process images taken through a mirror. The camera and mirror positions are fixed, and the object is always in the same position with respect to the mirror. The ...
- 31
1
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0
answers
189
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pre-processing to improve feature detector before tracking
I am trying to make tracking for soccer player, I need to detect features from this player and then estimate the distance difference of these pixels over number of frames.
first I have to detect the ...
- 161
0
votes
4
answers
369
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Is this image good enough for OCR?
Hello I'm trying to ocr on a special image.
I've done adaptive threshold , polartocartesian transformation.
this is my original image
this is adaptive threshold
this is polartocartesian ...
- 257
-1
votes
1
answer
74
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what are best features [closed]
I am doing OCR for Kannada and English. What are the best features in image? Please also tell me some tools to perform OCR before implementing it as code (like Rapiedminer for machine learning).
- 143
1
vote
3
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542
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Is it an excessive pre-processing step in image processing?
I wanted to consult with some experts whether or not this pre-processing step is excessive for what I'm trying to achieve. I am in a similar scenario as the author of the article, where I have many ...
- 139
0
votes
2
answers
2k
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Should I consider rgb values of a pixel as one value?
I was reading this paper for a project work.
We train on 1.6 million 32*32 color images that have been preprocessed
by subtracting from each pixel its mean value over all images and then
...
- 103
7
votes
1
answer
1k
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What segmentation methods can be used for simple images?
As related to the project I am currently involved in, I have come to realize that one thing that might help is for me to 'segment' my image. To that end, I have shown a very simple example below.
...
- 9,847
8
votes
4
answers
1k
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Preprocessing to improve Harris corner tracking between video frames?
In our unmanned aerial vehicle grayscale video image stabilization application, we're having difficulty finding the "good" Harris corners in frame N+1 selected from frame N. The source of the ...
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