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Abstract
In the literature, use of computer processing of radiographic images for easy and better interpretation has been established. However, in India, the subject is in its infancy. This paper deals with the processing and enhancement techniques such as Gray scale mapping, boundary detection, cycle enhancement, frequency filtering etc. which find application in cancer detection, lung and heart disease identification, lesions in blood vessels etc. and pattern recognition techniques for automatic chromosome analysis. The work done at Indian Institute of Science on some of these aspects is highlighted.