ImageJ/Fiji - The Image Window
Video Highlights and Helpful Links
The ImageJ User Guide (https://imagej.nih.gov/ij/docs/guide/...) is a fantastic tool for all things ImageJ… looking up built-in commands, etc.
**Note: The names ‘ImageJ’ and ‘Fiji’ are used interchangeably… we recommend new users download/install/use the Fiji distribution (https://imagej.net/software/fiji/index) of ImageJ, as Fiji Is Just ImageJ