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PDF two-third-inch-4k-uhd-production-whitepaper.pdf
Schade Snr. [ 2 ] brilliantly explained this by pointing out that a distinction must be made between Picture Sharpness and Resolving Power when assessing image resolution. His work demonstrated that the square of the area under the MTF curve -- when normalized – aligned with human perception of image sharpness – see Figure 21.
CMS-XML Definition of Permissible Circle of Confusion
Permissible circle of confusion The range of sharpness of an image (picture) is determined by taking the resolving power of the human eye into consideration. A circle of confusion within the limit where the image is actually perceived as sharp is called the permissible circle of confusion (equal to or similar to the minimum circle of confusion).