Extraction of regular textures from real images

A texel repeated at equal distances over space creates
a regular texture. Such textures appear everywhere, in nature
(e. g., the trunk of a palm tree) as well as out of it (e. g., tiles of
floors). However, regular textures are rarely found in real images,
due to, i. a., lighting variations and the projection from the
three dimensions onto two. The detection and processing of such
near-regular textures is a challenging task with many application
fields. In this paper different methods are considered and compared
to detect near-regular textures from real images and to extract
their regular textures.