One disclosed embodiment is a method based on an iteratively employed Bayesian-probability-based pixel classification, used to refine an initial feature mask that specifies those pixels in a region of interest, including and surrounding a feature in the scanned image of a microarray, that together compose a pixel-based image of the feature within the region of interest. The application has at least one indicia having a first configuration and a second configuration different from the first configuration. 0001% of a total weight of the wear resistant material, wherein the wear resistant material includes by weight percent chromium 29. The conductive pillars protrude from the second surface. The latch control circuit has a variable resistance to compensate for an increasing internal voltage supply. The container has a box portion having a recessed base, a front wall, a back wall, and opposing side walls, a closure adapted to be releasably sealed on the box portion, and a circumferential channel in the box base.