CODEWITHSUNDEEP
imagealgorithmimage-processingedge-detection
Taha
Taha

Reputation: 411

Image comparison of HD and SD images using Java

I have a database containing both the SD and HD version of same set of images. Problem is that their names are different from each other.

For example an image of a flower in SD has a name greatflower.png and the same flower has HD version with the name bestflower.png

The challenge is to find a similarity between them. I have tried resizing the images to the same width and height and then pixel by pixel comparing them but the results are not accurate. I just want to have an answer in terms of yes or no after the algorithm is done performing comparison between a pair of images.

My question is which library of java or algorithm will perform a perfect image similarity analysis between an HD and SD version of the image ?

Thanking you all in anticipation :)

Upvotes: 1

Views: 279

Answers (1)

MrSmith42
MrSmith42

Reputation: 10161

I would as a first step create color histograms of all images (for a reduced color-depth). Than you can use the histogram similarity to find candidates of same images.

In a second step I would resize both images to the same (quite small) size and than make a pixel by pixel comparison with little tolerance related to the colors. If more than 90% of the pixels are very similar, I would classify the images as being the same.

Upvotes: 1

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