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Abstract
One of the most common degradations in medical images is their poor contrast quality and noise. Therefore, the image has to get under a process called image enhancement which contains an aggregation of techniques that look for improving the visual aspect of an image. Medical images are one of the fundamental images, because they are used in more sensitive field which is a medical field. Researchers made various attempts to enhance the biomedical images using various signal processing methods. Several techniques have been explored and reported for improving the quality of the medical images. Still, there is a scope of improvement in the area of quality enhancement of the medical scans. The basic objective of this study is to evaluate and discuss different techniques and approaches proposed in order to handle different medical imaging types. The paper provides a short overview of different methods presented in the prospect of medical image enhancement.
Key words: ULTRASOUND, Medical images, Brain, visualization, soft tissues, Tongue diagnosis. Computed Tomography (CT)
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