How It Works
Lumigrafy creates beautiful, bold images by compositing multiple illumination photos. The method uses details from different illuminations such as grazing illumination, back-lights and dramatic shading key lights to automatically create enhanced images. Boosting details and contrast through the interplay of shadows, reflections and textures, it achieves well-balanced compositions that are comparable to those designed by professional artists.
The system starts from multiple illumination images, or light stacks. These are assembled into beautiful compositions. The Lumigrafy light montage works fast with hundreds of illuminations for a scene. The more illuminations there are, the more variety of details and shading can be used to create beautiful compelling montages.
User studies confirm that Lumigrafy presents substantial benefits over traditional Photoshop editing done by professional Artists.
- Viewers prefer Lumigrafy vs Artist compositions 80% of the time
- Compositions are fully automatic, not requiring user-assistance
- Lumigrafy is fast and scales to large numbers of pictures
Light glorifies everything. It transforms and ennobles the most commonplace and ordinary subjects. The object is nothing, light is everything.
– Leonard Missone
Lumigrafy is based on deep connections with the neuro-aesthetics of visual perception. It considers the aesthetics of shading, reflections and colour features such as textures in the depiction of a scene. Great illumination reveals stunning details and shading.
Our technique finds those components of light and assembles them into a single best composition, similar to how a professional artist would, however all done algorithmically. It produces beautiful results showing fair illumination, well-balanced details and an excellent use of contrast to highlight all object features.
The Lumigrafy methods are designed for:
- artistry: automatically creates compositions that are proven to be more beautiful than those manually edited by professional Photoshop artists
- ease of use: light stacks do not have any constraints on the types or positions of the light sources
- photo realism: the compositing process seamlessly integrates multiple illumination conditions
- correct exposure: the results are fairly lit, without showing distracting highlights or unpleasant shadows
In order to evaluate the efficiency of Lumigrafy, we've asked artists to create beautiful compositions using the same light stacks that are used as inputs to the automatic tool. We also show the stack-wise mean image, when all lights are enabled as a base-line.
The lighting instances are displayed quickly one after another in the animated sequences seen on the left part of the screen in the video, whereas the results of the Lumigrafy technique are shown on the right side. The light stacks are captured using several cameras and techniques: a consumer level DSLR, an advanced light dome or even a camera phone.