phash Questions
3
I trying to improve search similar images pHashed in MySQL database.
Right now I comparing pHash counting hamming distance like this:
SELECT * FROM images WHERE BIT_COUNT(hash ^ 202835905253510827...
Underpin asked 17/2, 2013 at 19:30
3
Solved
I want to use OpenCV's perceptual hashing functions from Python.
This isn't working.
import cv2
a_1 = cv2.imread('a.jpg')
cv2.img_hash_BlockMeanHash.compute(a_1)
I get:
TypeError: descriptor...
7
Similar image search problem
Millions of images pHash'ed and stored in Elasticsearch.
Format is "11001101...11" (length 64), but can be changed (better not).
Given subject image's hash "100111....
Saxony asked 25/9, 2015 at 15:37
3
Solved
I'm attempting to calculate the Hamming distance between an input hash and database-stored hashes. These are perceptual hashes, so the Hamming distance between them are important to me and tell me ...
Preachy asked 2/2, 2019 at 20:45
1
Solved
I'm trying to implement a general fingerprint memoizator: we have a file that can be expressed through an intelligent fingerprint (like pHash for images or chromaprint for audio) and if our desider...
Profant asked 9/5, 2016 at 8:23
2
Solved
I need to search a huge image database to find possible duplicate using pHash assuming those image records have the hash code generated using the pHash.
Now I have to compare a new image and I ha...
Pemmican asked 15/8, 2013 at 16:56
2
I've checked methods like Phasher to get similar images. Basically to resize images to 8x8, grayscale, get average pixel and create a binary hash of each pixel comparing if it's above or below the ...
Hyaline asked 27/5, 2014 at 9:14
1
Solved
I have questions about both sift and phash
First of all, I'm using SIFT to identify similar image in real-time service.
Like pictures by phone-camera, small amount of rotation and blurred ef...
Chinn asked 22/5, 2013 at 20:8
1
How to compile pHash for iOS?
I read the documentation but there's no mention of iOS/arm and Google doesn't help.
So if anyone was able to compile pHash for iOS please share your experience.
Bechler asked 2/7, 2012 at 9:33
1
Solved
Building pHash 0.9.4 on OSX can turn out to be tricky.
For those of you who've run into issues, my somewhat lengthy answer below might help.
Badderlocks asked 12/7, 2012 at 13:18
1
Solved
I know you can use pHash from .NET or Java, but I would like a pure .NET (preferably) or Java implementation. Are there any others available? I am interested in the image hashing functionalit...
Jackinthepulpit asked 18/11, 2011 at 6:30
1
Solved
I am currently trying to use pHash.dll on http://phash.org
Unfortunately it was written in C++, I'd have to use DLLImport
But the problem I am having is how to register pHash.dll (compiled thru V...
1
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