Generating Digital Painting Lighting Effects via RGB-space Geometry

Ayush Thakur
10
Aug
2020

Lighting plays an important role in digital and matte painting. Unlike physical illumination in the real world or rendered scenes, the painted lighting effects in digital paintings are created by artists using heterogeneous strokes. In the paper titled "Generating Digital Painting Lighting Effects via RGB-space Geometry" the authors propose an image processing algorithm to generate digital painting lighting effects from a single image. The algorithm is based on the key observation that: artists use many overlapping strokes to paint lighting effects, i.e., pixels with dense stroke history tend to gather more illumination strokes. Based on this observation they devised an algorithm that can:

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