Questions tagged [noise]
Image perturbation caused by electronic transformation and processing.
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What kinds of images can I produce the least noise in when shooting in low light? [duplicate]
What sort of images produce least noise?
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Image stacking with different camera settings
I'd like to be able to stack multiple images to reduce noise. In the past, I've followed the approach found at Cambridge in Colour: averaging images. Simply put, I bring all of the images into ...
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At what point is bit depth redundant in photography/cinematography?
When thinking of pixel (physical) resolution, I imagine the pixel count as sampling the spatial variations in luminance across the scene. More pixels, the greater ability to sample the undulating ...
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Benefit of larger photosites
I often read that larger photosites have better SNR performance. However, from further reading and test footage I have seen. It seems that, as many people also rightfully point out, it has more to do ...
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Wrapping my head around the signal to noise ratio
To my knowledge the signal to noise ratio when talking about shot noise, is defined as the mean signal divided by the standard deviation. In the Poisson distribution, which can be used to model shot ...
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Could somebody help me understand this paragraph explaining the relationship between noise and sensor size?
According to this article from dpreview, which compared noise between a full-frame camera with a full-frame lens (the D810), the same full-frame camera with an APS-C lens, and an APS-C camera with the ...
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I have an image problem and I don't know what to call this
I wrote the article using a translator and hope you understand well, Sorry...
I am developing machine vision using basler camera(acA2440-20gm).
A problem arose during development.
The image contains ...
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a6400 Red circle (light / flare) when getting close to darker subject
I run into a little issue today and can’t figure out the root cause.
I have the a6400, when I get close to a subject, mostly black / dark fabric type of material, I will see a red dot (light / flare) ...
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How Does Noise Reduction Work In Canon EOS 1300D?
I have been reading review of the Canon EOS 1300D by The Digital Picture and I came across noise reduction.
The color blocks in this tool, being evenly-colored, provide a worst case scenario for ...
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What factors, asides from temperature, affect dark current?
What is an effective means of determining the average dark current/noise of a camera image sensor? My understanding is that this is type of noise is temperature dependent, what other factors may ...
user20509
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noise in the intensity values has standard deviation of 2 gray levels -- what does that mean?
I am working on digital image correlation and want to figure out the noise in my data.
In a book, I read "many digital cameras record intensity values using 8 bits with Gaussian noise in the ...
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Noise reduction in Adobe Camera Raw
When I open a raw file shot in ISO 1600 in ACR there is very little noise in the photo. But after color adjustments when i save or export as a JPG file there is much more noise visible. How can I ...
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There are many red and black spots in my photos,what are those? [duplicate]
I am using canon 60d for more than 1year.few months ago i suddenly saw these dots were appeared in my photos.i have tried manual sensor cleaning several number of times,but this didn't work for me....
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Is it normal for the Canon 6D to exhibit more color noise compared to a 50D?
My first day with 6D, upgraded from a 50D. Wouldn't be pixel-peeping but something unusual caught my eye when I opened photos in Lightroom this morning. The color noise pattern is completely different ...
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How to stop Nikon D3200 from shooting everything at ISO 3200 in Auto mode
When I use the Auto mode on my Nikon D3200, it will almost always shoot at ISO 3200, even if I have a potent external flash in place. Because of the quite small pixel size of the camera, it will make ...
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Which factors are responsible for making a photograph zero noised when scaled to 100%?
While purchasing a DSLR which factors should be kept in mind if your aim is to zoom your photograph to 100%, frame it, and hang it on a wall?
At 100% there shouldn't be ANY noise.
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How does an iPhone 7 take 4K and slow motion videos? [closed]
Even some good compact cameras at around $400 range cannot take a 4K and slow motion, so does an iPhone with small sensor that is generally prone to noise shooting 4K now?
A small sensor should ...
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Photos get noisy when uploaded to either photoshop or Lightroom
I'm facing one thing that is very frustrating.
Every time that I upload long exposure images to either photoshop or lightroom, they get blue and red specs,and when I export them (no matter which ...
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Cold camera, less noise? [duplicate]
In electronics, one of the most significant sources of noise is heat, usually in the form of infrared radiation. Everything gives off infrared radiation, and the hotter something is, the more ...
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Why RAW to JPG creates more noise in image in Adobe Photoshop? [duplicate]
When i click image at that time Raw format doesn't contain any noise,
but when i opened into Adobe Photosho CC 2017 version and after modifying raw data and open to ps ans save as jpg gives colors ...
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Why do cameras include very high ISO settings even though they are so noisy?
Why do they make DSLRs' ISO settings go so high? I own three different Nikon cameras and every one of them, once you pass a pathetic 320 ISO, the noise in my photos is lousy and — all 3 cameras cost ...
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