search

Siyeong-Lee / Deep_Recursive_HDRI

BSD 3-Clause "New" or "Revised" License
18 stars 1 forks source link

Some issue about HDREye dataset and HDR-VDP-2 #2

Open skchen1993 opened 1 year ago

skchen1993 commented 1 year ago

Thanks for sharing this excellent work with us!! In the paper of Deep recursive HDRI, you mentioned that you used 41 stacks of HDREye dataset. Could you please sharing which stack you use? (or which stack you didn't use).

Another question is, when you used HDR-VDP-2 metrics in Deep recursive HDRI, did you do any processing (Scaling, normalizing or something) to the HDR file (.hdr file), or just diretly fed them into metrics to calculation? Here is the code i use for using HDR-VDP-2: image I could not reproduce the result on paper, and i was wondering if i misused something.

Besides, is your estimated HDR file size 256256? If it is true, when you calculate HDR-VDP-2 in HDReye dataset, did you resize the ground truth hdr file to 256256 first?

Thank you very much, looking forward to your reply! (Many thanks to your previous response in hdr_vds_dataset project!!!!)

Siyeong-Lee commented 1 year ago

Thanks for your interest, and sorry for the late reply. @skchen1993

Q1: Could you please sharing which stack you use? (or which stack you didn't use). A1: I currently do not have the HDREye dataset. If you have HDREye hdr images, you can extract the LDR stack through HDR Toolbox (https://github.com/banterle/HDR_Toolbox).

Q2: Did you do any processing (Scaling, normalizing or something) to the HDR file (.hdr file), or just diretly fed them into metrics to calculation? A2: HDR images were evaluated without additional work. Because we have GT LDR stacks and exposure times set, and the process of creating hdr images (the debevec's method) is the same as the evaluation of the previous work (https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=8457442). You must also set the color encoding parameter to 'rgb-bt.709' or 'sRGB-display'.

Q3: Is your estimated HDR file size 256256? If it is true, when you calculate HDR-VDP-2 in HDReye dataset, did you resize the ground truth hdr file to 256256 first? A3: As far as I remember, the resolution parameter was equal to the resolution of the generated LDR image.

My answer is late, but I hope it helps your research.