Would be interesting how this compares to tools like pixelmatch [1] which basically compares each pixel within YIQ color space using euclidian color distance.<p>[1] <a href="https:&#x2F;&#x2F;github.com&#x2F;mapbox&#x2F;pixelmatch-cpp" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;mapbox&#x2F;pixelmatch-cpp</a>