The Origins of Digital Image Processing & Application areas in Digital Image Processing Medical Images
Bhausaheb Shinde · IOSR Journal of Engineering · 2011
One of the first application of digital image was in the newspaper industry, when picture were first sent by submarine cable between London and New York.Introducation of the Bartlane cable picture transmission system in the early 1920s reduced the time required to transport a picture across the Atlantic from more than a week to less than three hours.Spaecialized printing equipment coded pictures for cable transmission and then reconstructed them at the receiving end.Some of the initial problems in improving the visual quality of these early digital pictures were related to the selection of printing producers and the distribution of intensity levels.In facts ,digital images requires so much storages and computation power that progress in the field of digital image processing has been dependent on the development of digital computers and of supporting technologies that include data storage, display and transmission.The digital image is composed of a finite number of elements, each of which has a location and values.These elements are referred as picture element, image element &pixels.Pixels used to denote the element of a digital image.The process of acquiring an image of the area containing the text, preprocessing that image, extracting the individual characters , describing the character in the form suitable for computer processing & recognizing those individual character are Digital Image Processing.