ppmmorph
TLDR
Morph between two images
$ ppmmorph -n [10] [control.ctl] [image1.ppm] [image2.ppm] > [sequence.ppm]
Generate frames$ ppmmorph -n [30] [morph.ctl] [start.ppm] [end.ppm]
SYNOPSIS
ppmmorph [options] controlfile image1 image2
DESCRIPTION
ppmmorph creates a morphing sequence between two images. Control points define corresponding features in both images, and the tool generates smooth transitions.
Part of Netpbm toolkit.
PARAMETERS
-n count
Number of intermediate frames.controlfile
Defines corresponding points.
EXAMPLES
$ # Create 10-frame morph
ppmmorph -n 10 morph.ctl face1.ppm face2.ppm > sequence.ppm
# Split into individual frames
ppmmorph -n 20 morph.ctl a.ppm b.ppm | pamsplit frame%d.ppm
# Create animation
ppmmorph -n 30 ctrl.txt img1.ppm img2.ppm | \
pamtogif > morph.gif
ppmmorph -n 10 morph.ctl face1.ppm face2.ppm > sequence.ppm
# Split into individual frames
ppmmorph -n 20 morph.ctl a.ppm b.ppm | pamsplit frame%d.ppm
# Create animation
ppmmorph -n 30 ctrl.txt img1.ppm img2.ppm | \
pamtogif > morph.gif
CONTROL FILE FORMAT
$ # Lines of corresponding points
# x1 y1 x2 y2 for image1 point to image2 point
100 50 150 60
200 100 250 110
# x1 y1 x2 y2 for image1 point to image2 point
100 50 150 60
200 100 250 110
CAVEATS
Requires careful control point placement. More points give smoother results. Images should be same size.
HISTORY
ppmmorph is part of Netpbm, implementing the morphing technique popularized in the 1990s for film effects.
