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Keywords = metamer mismatching

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10 pages, 1588 KB  
Letter
Color Sensor Accuracy Index Utilizing Metamer Mismatch Radii
by Emitis Roshan and Brian Funt
Sensors 2020, 20(15), 4275; https://doi.org/10.3390/s20154275 - 31 Jul 2020
Cited by 4 | Viewed by 3522
Abstract
A novel method is described for evaluating the colorimetric accuracy of digital color cameras based on a new measure of the metamer mismatch body (MMB) that is induced by the change from the camera as an ‘observer’ to the human standard observer. In [...] Read more.
A novel method is described for evaluating the colorimetric accuracy of digital color cameras based on a new measure of the metamer mismatch body (MMB) that is induced by the change from the camera as an ‘observer’ to the human standard observer. In comparison to the majority of existing methods for evaluating colorimetric accuracy, the advantage of using the MMB is that it is based on the theory of metamer mismatching and, therefore, shows how much color error can arise in principle. A new measure of colorimetric accuracy based on the shape of the camera-induced MMB is proposed and tested. MMB shape is measured in terms of the moments of inertia of the MMB treated as a mass of uniform density. Since colorimetric accuracy is independent of any linear transformation of the sensor space, the MMB measure needs to be as well. Normalization by the moments of inertia of the object color solid is introduced to provide this independence. Full article
(This article belongs to the Special Issue Color & Spectral Sensors)
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