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Digital Video and HD, 2nd Edition by Charles Poynton

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9

Resolution

To avoid visible pixel structure in image display, some overlap is desirable in the distributions of light produced by neighboring display elements, as I explained in Image structure, on page 75. Also, to avoid spatial aliasing in image capture, some overlap is necessary in the distribution of sensitivity across neighboring sensor elements. Such overlap reduces sharpness, but is beneficial to continuous-tone imagery. In this chapter, I will explain resolution, which is closely related to sharpness.

Resolution is an overloaded and ambiguous term that properly refers to spatial phenomena. It is confusing to refer to a sample as having 8-bit resolution; use precision or quantization instead. In computing, it is usual to use the term ...

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