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IF the filters in Bayer masks created three discrete color ranges in which any particular wavelength could only pass through a single filter, then the resolution would be 1/2 for the "green" filtered wavelengths and 1/4 for the "blue" and "red" filtered wavelengths. IF the filters in Bayer masks created three discrete color ranges in which any particular ...


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I saw multiple posts online which said it's reduced by 1 / sqrt(2), but they offered no explanation of why this is the case. This one is easy to explain. The typical Bayer tile has two identical green-filtered photosites and one instance of each of red- and blue-filtered photosites. The green-filtered ones are usually on the diagonal. Suppose the ...


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There is no reduction in "true resolution." It is optimally 1 point per pixel (photosite), 1 line per pixel row/column, or 1 line pair per two pixel rows/columns (nyquist). Although it seldom is in practice due to the lens, AA filters, etc.. Photosites do not record only one color. They are filtered to short wavelengths (blue), medium wavelengths (green), ...


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Computer generated text has sharp and smooth edges because the pixels at the edges have a computed opacity. This is (abusively) called "anti-aliasing". If you put the text in your photo, it becomes a bunch of pixels and its size will change if the photo is scaled for printing (which is often the case). Scaling a image is done by interpolating pixels (i.e., ...


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