CONTRAST ENHANCEMENT ALGORITHMS FOR FOGGY IMAGES

摘要

An increasing number of applications are making use of image processing technique. It is a non invasive and robust technique. Images are used in the modern applications such as object and lane detection, traffic surveillance, satellite, military and medical imaging need to have clear images that convey correct information. Capturing of image in fog conditions reduces visibility. It degrades quality and contrast of the image. Contrast of the image can be enhanced using modeling methods. A single foggy image is used as input to this work. Translated exponential functions are implemented to find the atmospheric veil and enhancement of contrast. Single foggy image is used as input to the algorithm that takes into account the exponential decay of the fog. In addition to the translated exponential function, some other algorithms have also been implemented in this work for comparison purpose.