Project 1

Project 1: Images of the Russian Empire: Colorizing the Prokudin-Gorskii photo collection

Brief Overview & Methodology

The goal of this project was to take the digitized Prokudin-Gorskii glass plate images and, through image processing techniques, produce a color image. In order to do this, I first separate an image file into three sub-images, each of which represent a color channel. After searching over a window of displacements, I then use SSD to score how well the images match. I align the green and red channel to the blue channel and then stack the images to output the smaller images. For the larger images, I use an image pyramid that finds the displacement on a scaled-down image and then change that displacement for the other scales up. Most of my larger images came out well, but a couple of them were not aligned too well, maybe because of the background color of the image and I would probably a better algorithm to correct this.