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Closed 10 years ago.
Is there any robust image hashing implementation in any programming language that I can use? This image hashing at minimum be able to generate the same hash for images that are altered in minor form (resized, rotated, minor touch, cropped etc ) .
The best example will be Tineye.com. They somehow hash each image and they are able to detect other duplicate images with minor modification.
I found some research but not implementation.
http://scholar.google.com/scholar?hl=en&as_sdt=0,10&q=robust+image+hashing
Related
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Closed 10 years ago.
Does anyone know what's the algorithm used behind the Photoshop "Match Color" function?
It seems it's not just a histogram equalization.
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Closed 11 years ago.
There are many applications to recognize similar faces. The most popular is Picasa. How do these applications do the following?
1) Detect face
2) Check for similar in database.
I would read this paper "Robust Real-Time Face Detection" to get started
also this one is interesting
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Closed 11 years ago.
At the present, there are a lot of SLAM algorithms out there, for example, a number of open-sources of SLAM in http://openslam.org/
What is the most famous one by now?
If I gonna choose one, What is the basic criterion I need to be considered for choosing one SLAM among the others?
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Closed 10 years ago.
Is there a hash function that is stable to small changes in text? I'm looking for the opposite of a cryptographic hash, where small changes in the source lead to huge changes in the result.
Something like a perceptual hash for text. Is there such a thing?
Edited: by "small changes in text" I mean changes in punctuation, correction of ortographic / grammatical mistakes, etc. The text itself is an article, like a wikipedia entry (but it can be much smaller, like 2 or 3 paragraphs).
Bonus points if somebody can point to a Python implementation.
You're looking for locality sensitive hashing.
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Closed 10 years ago.
which package would you use for writing algorithms in LaTeX? I know about algorithm, algorithmic and algorithms packages.
Thanks
The listings package is what you are looking for.
alt text http://files.droplr.com/files/35740123/13etch.listings.png
I'd add to your list algorithm2e.
Use Algorithmic for algorithms and psuedocode writing.
http://en.wikibooks.org/wiki/LaTeX/Algorithms_and_Pseudocode