Panel A: A single band in the original (left) was selectively enhanced to create the altered image (right). This is an instance of data falsification.

Panel B: Image 1 is the original. Images 2 and 3 result from incremental increases in contrast over the entire original. Image 2 is acceptable; however image 3, from which a significant number of bands have disappeared, is not. Image 4, just one lane (leftmost) of image 3, is likewise unacceptable.