Image correction

Retinex filtering is based on Land's theory of image perception, proposed to explain the perceived colour constancy of objects under varying illumination conditions. Several approaches exist to implement the retinex principles, among these the multiscale retinex with colour restoration algorithm (MSRCR) combines colour constancy with local contrast enhancement so images are rendered similarly to how human vision is believed to operate.

Three different methods for correcting fluorescence bleaching. 1. Simple (framewise ratio based) 2. Exponential (curve fitting with exponential decay model) 3. Histogram matching (register histogram shape. with 16 bit, it takes long time... it should be improved).

**RescaleIntensity** changes the intensity range of an image to your desired specifications.

This module lets you rescale the intensity of the input images by any ofseveral methods. You should use caution when interpreting intensity and texture measurements derived from images that have been rescaled because certain options for this module do not preserve the relative intensities from image to image.