1. A method comprising: capturing, using a capturing device of a mobile device, an image containing: a dipstick having colored test reagents, and color board comprising a grid of grey patches and a plurality of reference color patches; deriving, based on the grid of grey patches, local illumination parameters associated with the colored test reagents and the plurality of reference color patches; determining whether illumination parameters are sufficient for interpreting the colored test reagent given capturing and processing capabilities of the mobile device; in a case the illumination parameters are insufficient, notifying a user that an interpretation of the colored test reagents is not possible, otherwise, applying one or more image enhancement operation to the captured image, based on an analysis of the grid of grey patches, to yield enhanced reference color patches; and interpreting the one or more colored test reagents, by projecting the colored test reagents onto a vector of a subset of the enhanced reference color patches.