1. A computer implemented method for applying a visual discrimination model for single image applications comprising: receiving an image; defining a plurality of regions of interest in the image including a first region located to contain a feature to be detected and a second region located to encompass a background; determining metrics for visibility of the feature, wherein the metrics are determined by generating channel Just-Noticeable Difference (JND) maps for the single image, determining JND summary metrics for the plurality of regions, and determining a difference in JND metrics between the plurality of regions; and adjusting parameters of the JND metrics to increase a visibility of the feature in the image.