dhash
| Crates.io | dhash |
| lib.rs | dhash |
| version | 0.1.0 |
| source | src |
| created_at | 2019-03-06 01:33:00.235574 |
| updated_at | 2019-03-06 01:33:00.235574 |
| description | An implementation of `dhash` image signatures for rust |
| homepage | |
| repository | https://github.com/cetra3/dhash |
| max_upload_size | |
| id | 119012 |
| size | 7,391 |
(cetra3)
documentation
README
Dhash
This crate allows a dhash signature to be constructed from an image.
Requires the image crate
A dhash is a differential gradient hash that compares the difference in gradient between adjacent pixels, and provides a 64 bit signature of an image.
A dhash can be used to compare against other images for similarity and is resilient to differences in:
-
Aspect Ratio
-
Image Size
-
Brightness and Contrast
Implementation details taken from the Kind of Like That blog
Usage (CLI)
Install this crate:
cargo install dhash
Run dhash <img1> to print out a dhash of the image at path img1
$ dhash test.jpg
dhash for test.jpg is `13547707017824698364`
Run dhash <img1> <img2> to print out a dhash of both images and the distance between them (a lower number is closer):
$ dhash test.jpg other.jpg
dhash for test.jpg is `4485936524854165493`
dhash for other.jpg is `3337201687795727957`
distance is: 11