Imaging Fundamentals
A digital image refers to a series of two- or three-dimensional spatially ordered digitized samples of some physical quantity. The physical quantity can be practically anything. In digital photography, for example, samples represent light intensity values acquired across the lens. In positron emission tomography (PET imaging), the spatially ordered samples represent the detected level of a radioactive chemical (reflected in the number of so-called annihilation events) that is taken up by the brain or some other organ. In remote sensing, the spatially organized data could represent heat or vegetation density, and so on. The basic key to understanding images is in realizing that the spatially ordered samples are really just ...
Get Java™ Media APIs: Cross-Platform Imaging, Media, and Visualization now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
