This paper presents a technique for blindly removing image non-linearities in the absence of any calibration information or explicit knowledge of the imaging device. The basic approach exploits the fact that a non-linearity introduces specific higher-order correlations in the frequency domain (beyond second-order). These correlations can be detected using tools from polyspectral analysis. The non-linearities can then be estimated and removed by simply minimizing these correlations.
Blind removal of image non-linearities
2001-01-01
753194 byte
Conference paper
Electronic Resource
English
Blind Removal of Image Non-Linearities
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