An imaging system comprises a tuner and an image sensor including a plurality of pixel sensors. Each pixel sensor includes a photodetector, a stack of two or more filter layers comprising a given transition metal dichalcogenide (TMD), and one or more transparent glass layers positioned between adjacent filter layers. The stack selectively transmits received radiation to the photodetector based on a transmissivity of the filter layers, the transmissivity being based on a tuning context of the tuner. The imaging system sets the tuning context of the tuner and, for each of the pixel sensors, measures an intensity of radiation received from the stacks by the photodetector, determines a transmissivity of the stack based on both (i) the given TMD and (ii) the tuning context, and determines an intensity of radiation received by the pixel sensor at the stack based on the measured intensity and the determined transmissivity.