DIP Lecture 22: Image blending

ECSE-4540 Intro to Digital Image Processing Rich Radke, Rensselaer Polytechnic Institute Lecture 22: Image blending (4/30/15) 0:00:04 Image blending problem statement 0:02:05 Classical matte paintings 0:04:11 Hard-edged compositing 0:07:46 Blurring the seam with weighted transition regions 0:11:24 Multiresolution blending with image pyramids 0:13:29 Gaussian pyramids 0:16:01 Laplacian pyramids 0:21:03 Recovering the original image from the Laplacian pyramid 0:22:56 Image compositing with pyramids 0:27:07 Example 0:28:44 Poisson image editing 0:30:08 Why not use multiresolution blending? 0:32:31 The gradient-based problem 0:35:26 Solution to the problem: the Poisson equation 0:37:23 The discretized linear system 0:46:41 Matlab examples of Poisson compositing 0:55:43 Improvements using mixed gradients 1:01:31 Extensions and refinements Follows Sections 3.1-3.2 of the textbook, http://cvfxbook.com/ Key references: P. J. Burt and E. H. Adelson. A multiresolution spline with application to image mosaics. ACM Transactions on Graphics, 2(4):217--36, Oct. 1983. http://dx.doi.org/10.1145/245.247 P. Pérez, M. Gangnet, and A. Blake. Poisson image editing. In ACM SIGGRAPH (ACM Transactions on Graphics), 2003. http://dx.doi.org/10.1145/1201775.882269