1. A method to process an image, comprising: obtaining a first image of a scene from a memory; obtaining a first statistic of the entire first image; identifying a region-of-interest (ROI) of the first image, wherein the ROI comprises less than the entire first image; obtaining the first statistic of the ROI; determining a tone curve for the first image based on a weighted combination of the first statistic of the entire first image and the first statistic of the ROI; applying the tone curve to a second image to generate a tone-mapped image; and storing the tone-mapped image in the memory.