If you used a light meter to measure the sunlight, the sensor would measure literally tens of thousands of times more energy coming from the sun than from light reflected in shadows. Suppose you’re sitting in a dark room with a window open on a sunny day. I say more about this in the subsequent post. Photographs are not objective recordings of reality, nor are paintings direct depictions of the artist’s experience. This, along with my previous post on perspective, are part of a broader theme of how paintings and photographs arise from artistic and technical choices. Nowadays, our mobile phone photos are getting better and better, applying much more sophisticated-but hidden-aesthetic choices. Photographic tone reflects many choices made by the photographer and the camera manufacturer. We may tend to think of photographs as just objectively recording light and displaying it. This post describes some of the choices involved in photographic tone reproduction, that is, how bright or dim each part of a photo is. Note: some of this post has been incorporated into a paper in Journal of Vision.
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