1. A processing system for an input device having a plurality of sensor electrodes, the processing system comprising: a sensor module comprising sensor circuitry configured to operate the plurality of sensor electrodes to capture first resulting signals and second resulting signals; and a determination module configured to: generate a first image of sensor values from the first resulting signals, the first image of sensor values having first errors associated with the first resulting signals being captured at different times along a first axis; generate a first profile of sensor values from the second resulting signals, the first profile of sensor values each corresponding to a different point along the first axis and having second errors; and produce a modified image of sensor values based on the first image of sensor values and the first profile of sensor values, the modified image of sensor values having reduced errors compared with the first errors.