1. A method for determining the stain quality of a plurality of stained biological specimen slides, comprising: using an imaging station to obtain images of each of the specimen slides; and using an image processor to process the specimen slide images to identify a respective number of objects of interest (OOIs) within each of the biological specimen slides, wherein for each specimen slide the image processor measures a nuclear area of each identified OOI, measures a nuclear integrated optical density of each identified OOI, generates a scatter plot of the measured nuclear areas versus the nuclear integrated optical densities, and determines a stain quality of the specimens slide based at least partially upon a distribution characteristic of points within the scatter plot.