Contrast Enhancement of Medical Images-A Review

Imaging is one of the most important application areas of digital image processing. Processing of various medical images is very much helpful to visualize and extract more details like fractures, tumors and cancers from the image. There are many techniques available for enhancing the contrast of medical image. For enhancement of medical images, Contrast Enhancement is one of the most acceptable method. Different contrast enhancement techniques i.e. Linear Stretch, Histogram Equalization, Convolution mask enhancement, Region based enhancement, Adaptive enhancement are already available. Choice of Method depends on characteristics of image. This research work deals with contrast enhancement of X-Ray images and presents here a review of different contrast enhancement techniques so that max information will be visible.

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