Programming Project #2
15-463: Computational Photography
Assignment
The assignment results are ok. The image warping movie came out with some ghosting that I was not able to remove completely. Initially, the eyes were not lining up properly, but once this was corrected, the ears stopped lining up. This may have been a problem with the interpolation of points. The mean faces, on the other hand, were quite horrible; there seemed to be some issues with lining up the faces with the correlation points. I unfortunately did not have time to fix these one-by-one.The program consists of two main files, with two additional helper functions
- warp_zmouri(imageName1, imageName2) - the warp function, this takes in the names of two images, reads in the correspondence points from files "input_points.txt" and "base_points.txt," writes each frame to a file, and returns a matrix with all of the images
- mean_face(img, pts) - the mean_face function, this takes in a 4-dimensional matrix of a set of images, and a 3-dimensional matrix for a set of correspondence points for each image, calculates the mean face, and returns it, along with the results of my face warped to the mean geometry
- morph(im1, im2, im1_pts, im2_pts, tri, warp_frac, dissolve_frac) - the morph helper function, this takes two images, the correspondence points, the delaunay triangulation, and warp/dissolve parameters, and returns the morphed image
- computeAffine(tri1_pts, tri2_pts) - the affine helper function, this takes in two matrices of triangle points, and returns an affine transformation matrix from the first to the second
EDU>> m = warp_zmouri('Zach Mouri-scaled.jpg', 'Chris Marshall-scaled.jpg');
EDU>> movie2avi(m, 'warp.avi');
Note that the points for the warped images must be saved in the current directory as "input_points.txt" and "base_points.txt"
Warp Results
The following AVI was created in MATLAB and is the result of the image warp. Click to download (230 KB)In addition, this directory contains the initial and scaled images, the set of correlation points, and each intermediate morph.
