A photographic system and an associated image tuning method are provided. The image tuning method includes the steps of: capturing an image by an image sensor of the photographic system; analyzing an image content of the captured image to obtain a plurality of candidate images using a preference search strategy; providing the plurality of candidate images for selection by a user of the photographic system; determining an output image based on one of the candidate images selected by the user; and adjusting the preference search strategy by using the user's selection.