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A U.K. woman was photographed standing in a mirror where her reflections didn't match, but not because of a glitch in the Matrix. Instead, it's a simple iPhone computational photography mistake.

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[-] ninekeysdown@lemmy.world 3 points 1 year ago

That’s over simplified. There’s only so much you can get on a sensor at the sizes in mobile devices. To compensate there’s A LOT of processing that goes on. Even higher end DSLR cameras are doing post processing.

Even shooting RAW like you’re suggesting involves some amount of post processing for things like lens corrections.

It’s all that post processing that allows us to have things like HDR images for example. It also allows us to compensate for various lighting and motion changes.

Mobile phone cameras are more about the software than the hardware these days

[-] cmnybo@discuss.tchncs.de 11 points 1 year ago

With a DSLR, the person editing the pictures has full control over what post processing is done to the RAW files.

[-] ninekeysdown@lemmy.world 1 points 1 year ago

Correct, I was referring to RAW shot on mobile not a proper DLSR. I guess I should have been more clear about that. Sorry!

[-] uzay@infosec.pub 2 points 1 year ago

You might be confounding a RAW photo file and the way it is displayed. A RAW file isn't even actually an image file, it's a container containing the sensor pixel information, metadata, and a pre-generated JPG thumbnail. To actually display an image, the viewer application either has to interpret the sensor data into an image (possible with changes according to its liking) or just display the contained JPG. On mobile phones I think it's most likely that the JPG is generated with pre-applied post-processing and displayed that way. That doesn't mean the RAW file has any post-processing applied to it though.

[-] randombullet@feddit.de 1 points 1 year ago

Raw files from cameras have meta data that tells raw converters the info of which color profile and lenses it's taken with, but any camera worth using professionally doesn't have any native corrections on raw files. However, in special cases as with lenses with high distortion, the raw files have a distortion profile on by default.

[-] ninekeysdown@lemmy.world -1 points 1 year ago

Correct, I was referring to RAW shot on mobile devices not a proper DSLR. That was my observations based off of using the iPhone raw and android raw formats.

This isn’t my area of expertise so if I’m wrong about that aspect too let me know! 😃

this post was submitted on 01 Dec 2023
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