Pixel Density is GENIUS!

Started Jul 13, 2008 | Discussions thread
simpy Veteran Member • Posts: 3,090
Re: less crude downsampling methods

RRJackson wrote:

All of which would be peachy if the sensor was actually capturing any
useful information, but at some point the sensor with the smaller
photosites is going to start color-shifting and shortly after that
the noise floor will overwhelm the image. Then we meet our friend
again:

As far as your friend is concerned, if you had access to the raw data you may find that the image is overwhelmed by noise on a pixel-by-pixel basis. However, you can use the random nature of the noise to average it out and if there's no noise pattern you can always get a (low-resolution) signal that is above the noise level.

Well, there's one exception: when there really is no signal to be detected, such as in this lens cap image

Simon

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