Style DNA guide

Three looks

Each picture below is the sample pair the tool opens with. The table under each one is the whole recipe; everything not listed stays as the page opens.

The view changes what you see in the frame, not the scores: the radar and the overall similarity are the same in all three.

Side by side

The plainest view: each picture keeps its own shape, so you can judge the look by eye and then check the scores against what you see. Both samples are ornate portraits in soft light: texture scores 100% and brightness 94%. Their backgrounds, dark red against blue-green, are where they part, and warmth scores only 46%.

The weights change only the number beside the radar. Set Color histogram and Warmth to 2.0 and the other four to 0.0, and the overall similarity drops from 77% to 57%. Set Texture, Brightness and Contrast to 2.0 and the rest to 0.0, and it rises to 94%.

Half and half

Both pictures are stretched to one frame and laid one over the other. Shapes in the same place line up, such as the two pale faces and the halos; the rest looks doubled. See overlay blend.

Drag Blend slowly from 0% to 100% to fade from A to B. At every step each pixel is a plain mix of the two, so the blend is never darker than the pictures themselves.

Only what differs

The frame shows the gap between the two pictures, pixel by pixel, made three times stronger. Where they match it is black; the brightest areas are where they differ most. The sample pair's subjects sit in different places, so almost the whole frame lights up. See difference view.

The overall similarity is still 77%: the six measures compare each whole picture, not each pixel in place.