Photography

Questions tagged [stuck-pixel]

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Hot, stuck, or dead pixels. What's the difference?

What is the difference between hot, stuck, and dead pixels with regards to a camera's image sensor? What can cause each to occur? What can be done to reduce their influence on a photo?
7
votes
1answer
1k views

What's the best way to deal with hot/stuck pixels in long exposure night photographs?

I discovered red/blue/white pixels on my night photographs tonight. Trying to confirm this, I took a black image with the lens on and indeed I saw a whole lot of them (I didn't count them but at least ...
5
votes
1answer
278 views

Are there stuck/dead pixels in my photo?

I have 9 months old Canon 6D. Please, are there stuck/dead pixels on this photo? https://app.box.com/s/fw5lg0yrvejsv48ol6rm (in the circle, where the arrow indicates) I have it on all photos. I ...
4
votes
2answers
839 views

What is this dead pixel problem really called?

On all photos from my last vacation I see this red point. It appears on in-camera JPGs as well as on RAW files. A see a red pixel in the same position on all pictures. How is this problem called? Is ...
4
votes
3answers
3k views

“Stuck” pixel appearing on every photo taken

I have noticed that every pictures taken with my new Olympus EM10 has a few "dead" pixels or pixels that appear stuck to a colour. A few of them are red and other few greyish white. It has nothing ...
1
vote
0answers
141 views

Are these colored pixels in raw image (viewed in dcraw software) dead, hot or stuck?

Definitely not a photo pro here - I've tried taking RAW photos via CHDK on Canon S3 IS as .DNG. I work on Ubuntu 18.04, and when I open these .DNG in photivo, rawtherapee, and I think also darktable, ...
0
votes
1answer
167 views

Too many defective pixels?

I just bought a cheap action-camera and start experimenting with RAW format. The output file has some defective pixels. I know that they can be "removed", but it seems to me that they are too many. I ...