1. A machine-implemented method, comprising: receiving a digital image having a collection of pixels each with a corresponding original value; processing each pixel as a centroid pixel surrounded by neighboring pixels; performing, for each of a plurality of centroid pixels, at least two of: determining at least one of a minima score and a maxima score, determining a delta pair and a delta pair difference, and determining a primary vector set and a vector score; generating an adjusted centroid pixel value for each of the plurality of centroid pixels to increase a difference between the original value of each given centroid pixel and the original value of at least one of its neighboring pixels based on the performed determinations for that given centroid pixel and an adjustment function; generating a combined adjusted digital image based on all of the adjusted centroid pixel values; and outputting the combined adjusted digital image, wherein the receiving, the processing, the performing, the generating, and the outputting are performed by one or more machines.