Retinex Image Processing--Publications--SPIE 5907, San Diego,
California
Conference
Image enhancement, image quality, and noise
Abstract
The Multiscale Retinex With Color Restoration (MSRCR) is a
non-linear image enhancement algorithm that provides simultaneous
dynamic range compression, color constancy and rendition. The
overall impact is to brighten up areas of poor contrast/lightness but
not at the expense of saturating areas of good contrast/brightness. The
downside is that with the poor signal-to-noise ratio that most image
acquisition devices have in dark regions, noise can also be greatly
enhanced thus affecting overall image quality. In this paper, we will
discuss the impact of the MSRCR on the overall quality of an
enhanced image as a function of the strength of shadows in an
image, and as a function of the root-mean-square (RMS)
signal-to-noise (SNR) ratio of the image.
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