Software to objectively determine image quality

General questions or discussion about HandBrake, Video and/or audio transcoding, trends etc.
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YaBoyShredderson
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Joined: Fri May 29, 2020 5:17 pm

Software to objectively determine image quality

Post by YaBoyShredderson »

Ive done some google searches regarding ssim and vmaf and other video quality measurements but cannot find software that is easy to use or install, only command prompt things and stuff like this. I want a program that is free, and simple to use with a gui. I don't know anything about command lines or anything, I just want software that I can install, run, select source, select encode, and it will spit out a number. I don't know if that's asking too much but that's what I want. I want to compare bluray sources with my encodes in handbrake.

mduell
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Re: Software to objectively determine image quality

Post by mduell »

If you use the appropriate tunes in x264 (SSIM or PSNR), I believe the respective stat is available in the encoding log.

Of course the encode looks worse (at the same size) than an encode tuned for actual peoples eyes rather than objective image quality metrics.

YaBoyShredderson
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Joined: Fri May 29, 2020 5:17 pm

Re: Software to objectively determine image quality

Post by YaBoyShredderson »

So i can run some tests using those tunes, make my decision, and then run the same settings minus the tune?

rollin_eng
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Re: Software to objectively determine image quality

Post by rollin_eng »

Yes, but your output will be using different settings.

YaBoyShredderson
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Re: Software to objectively determine image quality

Post by YaBoyShredderson »

But its not a that big of a deal if the same settings without the ssim is going to be better quality and/or a smaller file, right? I just want an objective number to refrence when i decide how to encode my stuff.

rollin_eng
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Re: Software to objectively determine image quality

Post by rollin_eng »

Your eyes are better than a number :)

YaBoyShredderson
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Re: Software to objectively determine image quality

Post by YaBoyShredderson »

Of course, but i would like an objective number to use as well, even if its not perfect.

rollin_eng
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Re: Software to objectively determine image quality

Post by rollin_eng »

Then do what mduell suggested.

musicvid
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Re: Software to objectively determine image quality

Post by musicvid »

Here: Released by a friend of mine. SSIM, RMSE, PSNR. Standalone. Free.
https://tools4vegas.com/render-quality-metrics-2/
However, You need to be VERY careful of the temporal one-frame offset in x264, others.

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