Cartoon-versus-texture issue
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Image decomposition into cartoon and texture patterns plays an important role in high definition image processing.
In order to improve the definition of an image or a video, consider
(a) decomposing the image into smooth/texture components,
(b) enhancing every component separately and then
(c) fusing the enhanced results.
This yields high quality images and videos, even for images issued from a low definition camera.
How to perform cartoon-texture decomposition?
Reference
[Atto & Mercier, 2015]
provides functional objectives that operate structural image decomposition associated with sharp cartooning effect (piecewise smooth fields separated by 2D curves) and rich textural information (sparse variation fields).
Sparseness/Compressibility
In addition with the image definition improvment (enhancing separately cartoon and texture features), cartoon-versus-texture decomposition issue is another way of addressing image compression problem: cartoon is highly compressible (sparse in the wavelet domain) whereas texture compressibility depends only on texture richness ('Disney' texture is more sparse than 'Iguana' texture).
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