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Results tagged with noise
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user 34166
Image perturbation caused by electronic transformation and processing.
3
votes
3
answers
973
views
Why is there no image noise in my webcam dark frame photographs?
To reduce noise, I'm trying to take a dark frame. However, with the lens covered up totally, there is absolutely no noise in the image. The whole frame is uniformly black. … You can plainly see the bright bit, containing noise (especially towards the bottom). However, either side there is no noise what so ever. I have selected the black area with a tolerance of 0. …
- 1,014
1
vote
4
answers
756
views
Why are my low light photos noisy /blurry, but Alien is perfect?
I know that there are a few questions here already about low light photography and image noise. … Similarly my mobile phone creations are full of noise, but his (film) images aren't. Am I missing something fundamental between the two arts? …
- 1,014
2
votes
1
answer
310
views
Why is my frame stacked image showing a grid?
Individual frame images are very dark and full of sensor noise. You can clearly see the stepped lens mount in front of the sensor. The lower image is one individual frame. …
- 1,014
0
votes
3
answers
283
views
Why do Bayer images of total darkness contain stripes?
Given that sensor noise affects all sensor sites equally/randomly, why does the raw unprocessed Bayer data have such prominent vertical stripes? …
- 1,014