Questions tagged [color-blue]

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8
votes
2answers
5k views

How can I fix the color of blue photos using settings from “good” photos?

Imagine how photos with a bad blue filter look. I can recolor those pictures with the color filters from any image manipulation program like gimp. Now my question is: can I "grab" the right settings ...
31
votes
4answers
8k views

Why is the blue channel the noisiest?

It is widely observed that the blue channel in digital cameras is the noisiest. I've certainly noticed that with my camera. Why is this? Is it an artifact of some particular technology (e.g. Bayer ...
8
votes
2answers
4k views

Why are sensors less sensitive to blue light?

This is a followup question to Why is the blue channel the noisiest?. The simple answer to that question is that sensors are less sensitive to blue, and therefore require more amplification, which ...
28
votes
3answers
6k views

What's it called when white objects or white backgrounds become blue in photographs?

Sometimes when I take photos with my smartphone, the white objects or the white backgrounds become blue. Most of the time it happens when the location is a bit shadowed, but sometimes it happens in ...
3
votes
5answers
308 views

concert lighting difficulty with blue lighting - how to fix?

This is the first time I've shot a concert and I'm wondering why the blues gave me trouble some of the time (A and B), but not all of the time (C seems fine). I can correct A and B in post by ...