1. A method for ascertaining smells from air samples, the method comprising: exposing a thin film sensing portion of a gas sampling sensor within an optoelectronic nose, the thin film sensing portion reacting chemically when exposed to air samples; positioning the thin film sensing portion of the gas sampling sensor in a chamber of the optoelectronic nose for exposure to one or more air samples; obtaining the one or more air samples in the chamber through one or more airways of the optoelectronic nose to expose the thin film sensing portion of the gas sampling sensor to the one or more air samples; after an exposure time that allows chemical reactions to occur between the thin film sensing portion and the one or more air samples, capturing one or more images of the thin film sensing portion that is exposed to, and chemically reacts with, the one or more air samples using a camera associated with the optoelectronic nose; applying one or more image processing techniques to the one or more images to ascertain the smells of the one or more air samples; and outputting an indication of the ascertained smells.