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mr-Mojo avatar mr-Mojo commented on August 30, 2024

I have the same problem, the following images receive ratings that do not make any sense. The bright, beautiful image is score with 6.485, and the dark version which is clearly inferior receives a 6.669. Any thoughts on why this might be?

img8
img8_bri_0

from neural-image-assessment.

guantinglin avatar guantinglin commented on August 30, 2024

Hi, mr-Mojo and arianaa30
Have you figure out where the problem is?

from neural-image-assessment.

mr-Mojo avatar mr-Mojo commented on August 30, 2024

Hi @guantinglin, I think that NIMA might be insensitive to lightning and brightness change in images. I confirmed this observation by testing with different implementations from GitHub and my own research. The difference in prediction score is probably due to changes in contrast etc., that come with brightness changes.

from neural-image-assessment.

arianaa30 avatar arianaa30 commented on August 30, 2024

NIMA also provides a technical score for things like brightness, contrast, and PSNR-like quality of images. That's a different one from Aescetics.

from neural-image-assessment.

h3clikejava avatar h3clikejava commented on August 30, 2024

@arianaa30 Have u figure out?

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arianaa30 avatar arianaa30 commented on August 30, 2024

from neural-image-assessment.

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