Top
Best
New

Posted by zdw 21 hours ago

What an unprocessed photo looks like(maurycyz.com)
2112 points | 348 commentspage 6
DustinBrett 14 hours ago|
2 top HN posts in 1 day, maurycyz is on fire!
gruez 19 hours ago||
Honestly, I think the gamma normalization step don't really count as "processing", any more than the gzip decompression step doesn't count as "processing" for the purposes of "this is what an unprocessed html file looks like" demo. At the end of the day, it's the same information, but encoded differently. Similar arguments can be made for de-bayer filter step. If you ignore these two steps, the "processing" that happens looks far less dramatic.
seba_dos1 3 hours ago|
I fully agree regarding gamma, but completely disagree when it comes to debayering. Unless you turn 2x2 Bayer blocks into a single RGB pixel (losing some data in the process), the point of debayering is to interpolate missing data - it's upscaling of a kind after all - and you can use a multitude of various approaches to do that resulting in differing outputs.
shepherdjerred 19 hours ago||
Wow this is amazing. What a good and simple explanation!
alexpadula 16 hours ago||
Very interesting! Thank you for posting
neoromantique 12 hours ago||
>No adblocker detected. Consider using an extension like uBlock Origin to save time and bandwidth. Click here to close.

So cute (I am running a DNS adblock only, on the work browser)

jonplackett 19 hours ago||
The matrix step has 90s video game pixel art vibes.
to11mtm 19 hours ago||
OK now do Fuji Super CCD (where for reasons unknown the RAW is diagonal [0])

[0] - https://en.wikipedia.org/wiki/Super_CCD#/media/File:Fuji_CCD...

bri3d 19 hours ago|
The reasons aren’t exactly unknown, considering that the sensor is diagonally oriented also?

Processing these does seem like more fun though.

seper8 10 hours ago||
Your Christmas tree has anorexia?
5- 10 hours ago||
see also: https://vas3k.com/blog/computational_photography/
mvdtnz 19 hours ago|
The article keeps using the acronym "ADC" without defining it.
packetslave 19 hours ago||
Right-click, "Search Google for 'ADC'", takes much less time than making this useless comment.

https://en.wikipedia.org/wiki/Analog-to-digital_converter

mvdtnz 18 hours ago||
My point wasn't "I can't find this information", my point was "this is poorly written".
benatkin 15 hours ago||
I wanted to say I that I think it's overrated in terms of its position on HN, but rather than criticize side issues of it, which often point to something being a weak article in general, I probably should have just said exactly what I don't like about it as a whole. So I'll do that.

I think the headline is problematic because it suggests the raw photos aren't very good and thus need processing, however the raw data isn't something the camera makers intend to be put forth as a photo, and the data is intended to be processed right from the start. The data of course can be presented in as images but that serves as visualizations of the data rather than the source image or photo. Wikipedia does it a lot more justice. https://en.wikipedia.org/wiki/Raw_image_format If articles like OP's catch on, camera makers might be incentivized to game the sensors so their output makes more sense to the general public, and that would be inefficient, so the proper context should be given, which this "unprocessed photo" article doesn't do in my opinion.

tpmoney 13 hours ago||
> I think the headline is problematic because it suggests the raw photos aren't very good and thus need processing

That’s not how I read either the headline or the article at all. I read it as “this is a ‘raw photo’ fresh off your camera sensor, and this is everything your camera does behind the scenes to make that into something that we as humans recognize as a photo of something.” No judgements or implications that the raw photo is somehow wrong and something manufacturers should eliminate or “game”

plaidfuji 17 hours ago|||
Likely analog to digital converter, digitizing the raw signal from the photodetector cells
benatkin 19 hours ago||
There are also no citations, and it has this phrase "This website is not licensed for ML/LLM training or content creation." Yeah right, that's like the privacy notice posts people make to facebook from time to time that contradict the terms of service https://knowyourmeme.com/memes/facebook-privacy-notices
More comments...