Resum
Blind gamma estimation is the problem of estimating the gamma function that is applied to a linear image both for perceptual reasons and for the compensation of the non-linear behavior of displays. Gamma values change both inter-and intra-camera. In the latter case, the change comes from the use of different scene settings. In this letter we propose a new approach that relies on the use of more than a single image from the same scene. We estimate the gammas for all the different images at the same time with a method based on exploiting the structure of the standard in-camera processing pipeline. Our results improve over the state-of-the-art.
Idioma original | Anglès |
---|---|
Número d’article | 7018951 |
Pàgines (de-a) | 1316-1320 |
Nombre de pàgines | 5 |
Revista | IEEE Signal Processing Letters |
Volum | 22 |
Número | 9 |
DOIs | |
Estat de la publicació | Publicada - 1 de set. 2015 |