A Collection of Digital Photo Editing Methods

Abstract

This thesis addresses three self-contained photo editing methods. First,we introduce a method to correct over-exposure in an existing photograph. Over-exposure is unavoidable when the dynamic range of a scene is much larger than that of a camera sensor. Our method attempts to solve this problem by recovering the lightness and color separately. Second, we introduce a method of creating face makeup upon a face image with another image as the style example. The face makeup process of our method is analogous to physical makeup. The color and skin details are modified accordingly while the face structure is preserved. One major advantage lies in that only one example image is required. This renders face makeup by example very convenient and practical. Some additional makeup e ects, e.g. makeup by a portraiture, aging e ects, beard transfer etc. are also easily achievable by our method with slightly di erent parameter settings. Last, we introduce a method of creating image composite by seamlessly blending a region of interest from an image onto another one while faithfully preserving the color of regions specified by user markup.

These three methods are provided as standalone solution. They could potentially be integrated as add-ons into existing photo editing software, or else serve as standalone software.