Grape interlacing software
Grape is a free interlacing software for lenticular print. Features:
Parameters (ppi, picture size, etc.) limited only by printer and computer characteristics
Supports non-square pixels
Runs on Windows 64-bit machines
To install, extract the contents of the downloaded archive to an empty folder. Reading the manual is strongly recommended.
Two versions of Grape are offered. Grape 1_42 is the standard version. Grape 1_51 supports centered calibration (see the related Blog post), is larger in size, and runs slightly slower.