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| GI 2002 Online Papers |
In order to texture surfaces realistically with texture images (e.g. photos), it is important to consider the un-derlying relief. Here, a method is proposed to recover a coherent bump map from a single texture image. Dif-ferent visual zones are first identified using segmenta-tion and classification. Then, by linearly separating the relief into a noise-like small-scale component and a smooth “shape-related” large-scale component, we can automatically deduce the bump map as well as an “un-shaded” color map of the texture. The major advantage of our approach, compared to sophisticated measure-ment techniques based on multiple photos or specific devices, is its practical simplicity and broad accessibil-ity, while it allows us to obtain very easily, via basic bump mapping or displacement mapping, rendering results of good quality.
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