Warping: Images of two 2D electrophoresis gels, overlaid and warped with Delta2D. First image is colored in orange, second one colored in blue. Corresponding spots overlap after warping. Common spots are colored black, orange spots are only present (or much stronger) on the first image, blue spots are only present (or much stronger) on the second image.
Click this LINK to visit the original image and attribution information. Right click on the image to save the 800px teaching JPEG.