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What test would you run to see if your camera's sensor had a hot pixel which was replaced in processing by neighboring pixels?
by jws 7y ago
What test would you run to see if your camera's sensor had a hot pixel which was replaced in processing by neighboring pixels?
- la_barba 7y agoWell, for one, neighboring pixels are already being used during demosaicing. But I understand your question. For an end-user to detect such overt manipulation, you'd probably need to take successive frames with the lens cap on, and observe how the RAW sensor values change over time and find patterns in the noise levels. A pixel thats duplicated will stand out. That's all I have :^) I'll have to think a bunch to understand it at a deeper level...