ImageJ Free download Tools for calculating pixel values and the area of images Free download Tools for calculating pixel values and the area of images Vote: (12 votes) Program license: Free Developer: Joonas “Regalis” Rikkonen Version: 1.53 Works under: Mac Also available for Windows Vote: Program license (12 votes) Free Developer Version Joonas “Regalis” Rikkonen 1.53 Works under: Also available for Mac Mac OS X Windows