culling with prerendering (slow laptop)

[kofa (István Kovács)]

This is not using darktable, but could it be useful for you?

GitHub - RawLabo/QuickRawPicker: 📷 QuickRawPicker is a free and open source program...

(from I've created a new software to cull and pick raw photos.)

[rvietor]

@Tamas_Papp

For most images I pretty much finished editing so I don’t want them to have thumbnails — I have about 35k images in Darktable, and work on about 1k–2k at a time (reducing it below 200, or ideally 100, after I get back from a trip). Making high-res thumbnails for them is a waste of CPU and disk space.

That is from your holiday? On the slow laptop?

So you have a few choices:

• have dt do the work once, before you start culling (darktable-generate-cache) : relative fast browsing, but higher disk usage;
• use the crawler/background thumb generator: somewhat slower browsing initially, but you can start working directly, and higher disk usage;
• don’t use a disk cache: no extra disk usage, but slow working all the time.

I assume (perhaps wrongly) that the retained images will be transferred to a faster computer after the holidays, so you can clean out the collection and caches on the laptop…

[Tamas_Papp (Tamas K. Papp)]

@rvietor

That is from your holiday? On the slow laptop?

No. I just started thinking about possible speed gains in a general context (but forgot to mention that, sorry).

[Tamas_Papp (Tamas K. Papp)]

@kofa

This is not using darktable, but could it be useful for you?

Thanks, I have looked at it and it is fast, but remaining within Darktable is more convenient for me because in practice, I am culling not the RAW files but some minimally developed version (lens correction, profiled denoise, exposure, and color calibration; I adjust the latter two after the first pass).