Image Morphing

Tong-Yee Lee

Image MorphingAnimate transitions between two images

Specify CorrespondenceWarpingBlending

Cross-Dissolving

Blend images with “over” operator

Image Morphing

Combine warping and cross-dissolving

Image Morphing

The warping step is the hard oneAim is to align features in images

Feature-based WarpingBerier and Neeley use feature pairs of lines to control warp

Given a pixel P in dest image, where is P’ in source image?

Warping with One line pair

What happen to the “F”?

Warping with One line pairWhat happen to the “F”?

Warping with One line pair

What happen to the “F”?

Warping with One line pair

What happen to the “F”?

Warping with Multiple Line Pairs

Warping with Multiple Line Pairs

Weighting Effect of Each Line PairTo weight contribution of each line pair

T. Berier and Neeley use:

Warping Psuedocode

Warping Psuedocode

Berier and Neeley’s Examples