In this article we shall find that the effect of a Bayer CFA on the spatial frequencies and hence the ‘sharpness’ information captured by a sensor compared to those from the corresponding monochrome version can go from (almost) nothing to halving the potentially unaliased range – based on the chrominance content of the image and the direction in which the spatial frequencies are being stressed. Continue reading Bayer CFA Effect on Sharpness
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COMBINING BAYER CFA MTF Curves – II
In this and the previous article I present my thoughts on how MTF50 results obtained from raw data of the four Bayer CFA channels – off a uniformly illuminated neutral target captured with a typical digital camera through the slanted edge method – can be combined to provide a meaningful composite MTF50 for the imaging system as a whole1. Corrections, suggestions and challenges are welcome. Continue reading COMBINING BAYER CFA MTF Curves – II