How to merge image fragments into one file?

Question

JavaScript

Hello!
I downloaded from the site 2 gis a map of the city, in the form of png fragments. It turned out 6171 pieces. How can I glue them together using node.js now? The names of the fragments correspond to their coordinates.

Answer 1

imagemagick look

Answer 2

Excellent montage utility
You can read the parameters here
The offset parameter is set -geometry +4+4
You can use canvas in the node , but I would still write a bash script with montageor convert.