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Abstract:
mage enhancement is a technique which is responsible for refining the image quality for better visibility. It is a process of altering the certain amount of image features by human interpretation to obtain enhanced image at the output. Basically, the images taken in low light can cause poor contrast which makes object and background non-differentiable and there is also a chance of involving noise in it. So, it becomes an important parameter to rectify these problems. Therefore many techniques have been developed. But most of these techniques are failed to preserve the brightness and naturalness of the image which results into washed out appearance with loss of information. Now, a new technique has been proposed to resolve these problems. In this technique, an image is divided into blocks and then passes through high pass filter as well as adaptive gamma correction weighted distribution method for preserving brightness without losing details.