imagesSimilarity

imagesSimilarity(pictures: readonly DiffPixels[], options?: DiffImagesOptions): DiffImagesSimilarity

DiffImagesSimilarity imagesSimilarity(List<DiffPixels> pictures, [DiffImagesOptions? options]);

Field	What it says
similarity	How alike they all are, from 0 to 1. Times a hundred is the percentage.
identical	Whether not one pixel of any of them came out different.
pixels	How many pixels at least one of them covers.
matched	How many of those every one of them agrees about.
changed	The rest.
baseline	Which picture the rest were counted against.
each	How alike each picture is to the baseline, in order. The baseline's own is 1.
sizes	How large each picture was, in order.

The shorter question imageSimilarity asks about a pair, asked about a list. One picture disagreeing in a corner costs the set exactly as much as all of them disagreeing there, because what similarity asks is whether they agree — each is what says which of them did not, where the one number only says that one of them exists.

diffImages runs underneath, so every option means what it means there.