save back in raw?

[ceciliavision]

is there a way to process in raw and save back to raw format (e.g. ARW). It would be something like raw.save?

[letmaik]

What do you mean by process in raw exactly? A raw file doesn't store any postprocessed image, except for a preview potentially. Do you mean that you want to modify the original RAW Bayer matrix pixels and save them to a copy of the RAW file? If so, then this is not possible as the underlying library (libraw) does not support that, it is read-only.

[ceciliavision]

Yes that was my question, I hoped to save to another RAW file. Thanks for clarifying.

[chitraju]

Hello @letmaik Is it possible to save as a DNG file? I am trying to convert CR3 to DNG. Thank you!

[DIYer22]

process_raw could save raw back to dng file.