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upscaling [2017/09/17 17:54] beandog [480i Source] |
upscaling [2021/10/17 18:38] beandog removed |
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====== Upscaling ====== | ====== Upscaling ====== | ||
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+ | * [[https://github.com/haasn/interpolation-samples|Interpolation reference examples]] | ||
I'm playing with upscaling some of my DVDs (the ones I want in higher quality than normal) from 480p or 480i to a couple of formats: 480p60, 720p60, 1080p60. There's a couple of reasons and *theories* that I have about doing it: | I'm playing with upscaling some of my DVDs (the ones I want in higher quality than normal) from 480p or 480i to a couple of formats: 480p60, 720p60, 1080p60. There's a couple of reasons and *theories* that I have about doing it: | ||
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+ | ** Update / spoiler alert: ** increasing picture size does not equate higher quality, it just slows down your encode a lot. Use higher CRF for good quality. :) | ||
I *have* to encode my source video at some point, because I can't *consistently* get a DVD -> VOB or DVD -> MKV lossless copy somehow that is clean, and doesn't have playback issues somewhere, at some point (sadness). I could write more code to do it myself, but since there's so many tools out there to encode it, and I don't want to debug my own, I'm passing on it. So, encode we must. | I *have* to encode my source video at some point, because I can't *consistently* get a DVD -> VOB or DVD -> MKV lossless copy somehow that is clean, and doesn't have playback issues somewhere, at some point (sadness). I could write more code to do it myself, but since there's so many tools out there to encode it, and I don't want to debug my own, I'm passing on it. So, encode we must. | ||
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{{:robin-720p24.png|}} | {{:robin-720p24.png|}} | ||
+ | Finally, the 1080p version: | ||
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+ | {{:robin-1080p24.png|}} | ||
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+ | After doing my testing, it looks like the differences to the quality are nearly impossible to tell, and not worth the 300% increase in filesize from 480 to 1080. | ||
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+ | Here's the original at a CRF value of 1 ... I can't really tell the difference there, either, for this shot. So, maybe I picked a bad source to begin with anyway. | ||
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+ | {{:robin-01q480p24.png|}} |