Search found 51 matches

by Narkyy
Fri May 25, 2018 10:57 pm
Forum: CUDA Filters
Topic: HDR -> SDR conversion
Replies: 561
Views: 53907

Re: HDR -> SDR tonemapping

I think light defaults for Gamma should be left like they are now, it all depends on the film tonemapped so it should be adjusted by the user.
Resized to 720p to take less space

default vs light=0.55
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by Narkyy
Thu May 24, 2018 10:50 am
Forum: CUDA Filters
Topic: HDR -> SDR conversion
Replies: 561
Views: 53907

Re: HDR -> SDR tonemapping

I think white=2.5 for Hable is a bit overkill as default, a lot of highlights are overblown, it should be at least 5.
The old default of ~11 was too high
by Narkyy
Wed May 23, 2018 5:54 pm
Forum: CUDA Filters
Topic: HDR -> SDR conversion
Replies: 561
Views: 53907

Re: HDR -> SDR tonemapping

Noticed the same as I can see in your tests, highlights seem to clip to 235 a bit early with tm="gamma"
by Narkyy
Wed May 23, 2018 4:13 pm
Forum: CUDA Filters
Topic: HDR -> SDR conversion
Replies: 561
Views: 53907

Re: HDR -> SDR tonemapping

Ah yeah, I should've tried more than just w :)
Thanks!
by Narkyy
Wed May 23, 2018 3:20 pm
Forum: CUDA Filters
Topic: HDR -> SDR conversion
Replies: 561
Views: 53907

Re: HDR -> SDR tonemapping

Can the Hable parameters be changed with the new plugin? I'm not sure if I missed something in the readme or not.
by Narkyy
Tue May 22, 2018 9:46 am
Forum: CUDA Filters
Topic: HDR -> SDR conversion
Replies: 561
Views: 53907

Re: HDR -> SDR tonemapping

Yes sorry it is subjective, otherwise the tonemap is great :salute:
by Narkyy
Mon May 21, 2018 8:15 pm
Forum: CUDA Filters
Topic: HDR -> SDR conversion
Replies: 561
Views: 53907

Re: HDR -> SDR tonemapping

Here's the same frame, gamma at 0.40 and 0.42 It does improve the contrast, though still dim in terms of brightness where light shines. However the Hable method often results in some scenes brighter than SDR, so it might work better in places. If I increase light, it only makes the paper overblown a...
by Narkyy
Mon May 21, 2018 4:13 pm
Forum: CUDA Filters
Topic: HDR -> SDR conversion
Replies: 561
Views: 53907

Re: HDR -> SDR tonemapping

Thanks for the update :hat: I've tried the new gamma tonemap and noticed that the midtones are lacking in brightness. However default is much better than Hable for the highlights. Some comparisons and respective settings: SDR https://thumbs2.imgbox.com/ef/0f/1rziuGJi_t.png dghdrtosdr(impl="255",ligh...
by Narkyy
Sat May 12, 2018 4:54 pm
Forum: CUDA Filters
Topic: HDR -> SDR conversion
Replies: 561
Views: 53907

Re: HDR -> SDR tonemapping

Thanks for your testing. a bit messy in darker areas though Can you please tell me what you mean by messy? Reinhard (equal=0) https://thumbs2.imgbox.com/4e/6b/JMqRmTSO_t.png DGHDRtoSDR(impl="255",light=50,equal=10) https://thumbs2.imgbox.com/76/d6/n7buQam8_t.png From equal=0 to equal=10, it seems t...
by Narkyy
Sat May 12, 2018 2:48 pm
Forum: CUDA Filters
Topic: HDR -> SDR conversion
Replies: 561
Views: 53907

Re: HDR -> SDR tonemapping

Had a quick go at it, here's some comparisons SDR https://thumbs2.imgbox.com/bb/6c/vJaCRzvf_t.png Hable https://thumbs2.imgbox.com/b6/66/1Sd9tFCx_t.png Reinhard https://thumbs2.imgbox.com/4e/6b/JMqRmTSO_t.png DGHDRtoSDR(impl="255",light=50,equal=10) https://thumbs2.imgbox.com/76/d6/n7buQam8_t.png DG...