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We asked camera companies why their RAW formats are all different and confusing

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361 points Tomte | 2 comments | 04 Apr 25 11:41 UTC | HN request time: 0.409s | source
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ChrisMarshallNY ◴[07 Apr 25 10:26 UTC] No.43609745[source]▶
Raw decoding is not as simple as you might think.

It’s the best place to add “signature steps.” Things like noise reduction, chromatic aberration correction, and one-step HDR processing.

I used to work for a camera manufacturer, and our Raw decoder was an extremely intense pipeline step. It was treated as one of the biggest secrets in the company.

Third-party deinterlacers could not exactly match ours, although they could get very good results.

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1. dllu ◴[07 Apr 25 20:05 UTC] No.43615373[source]▶
Anecdotally, using Darktable, I could never get as good of a demosaicing result as using the straight-out-of-camera JPEGs from my Fujifilm GFX 100S. In challenging scenarios such as fine diagonal lines, Darktable's algorithms such as LMMSE would add a lot of false colour to the image.

However, modern deep learning-based joint demosaicing and denoising algorithms handily outperform Darktable's classical algorithms.

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2. hexo ◴[08 Apr 25 09:01 UTC] No.43619676[source]▶
Last thing I want my pictures touching is some deep learning based thingy.