inceddy / image-compare
micro Lib for image comparison
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Last update: 2024-10-27 03:47:20 UTC
README
PHP micro Lib for image comparison
Installation
Add this repo as dependency in your composer.json
{ "require": { "inceddy/image-compare": "dev-master" } }
Concept
The idea behind this comparison is simple.
- Eliminate the background to white
- Isolate the remaining areas
- Compare the mean-color of all areas and the area count in both images
Sample
// Load first image $image1 = Image::fromFile('demo_inputs/image1.png'); // Load second image to compare $image2 = Image::fromFile('demo_inputs/image2.png'); // If both images have an known background substract it $mask = Image::fromFile('demo_inputs/mask.png'); $image1 = $image1->subtract($mask, 15); // use 15% tolerance $image2 = $image2->subtract($mask, 15); // use 15% tolerance // Compare both images $equal = $image1->compare($image2); // Returns a boolean value whether these images are equal or not // Or if you are interessted in how equal they are $diff = $image1->difference($image2); // Retuns a float between 1 and 0, where 1 is equal and 0 is total difference