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I have a bit of confusion on the pre-processing of remote sensed images. Do atmospheric correction methods such as Dark Object Subtraction convert the DN into reflectance values? If not, it is considered an acceptable pre-processing to perform only a Dark Object Subtraction, or before is always required a radiometric calibration?

marked as duplicate by radouxju, Kersten, John Powell, Evil Genius, Andre Silva Feb 11 '16 at 15:46

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