An uncompressed digitized VHS tape is like 60 gigs. Obviously way too big. I can compress it down using H.265 and get basically the same quality. But before I do that, is there any production techniques I can use on the uncompressed files to get a better image?

I've only ever dealt with raw photo images. I know that with raw photos I can do a ton more post processing because the bitdepth is deeper than the human eye can gather so there's a lot more information for the post processor to access.

Is this true of a digitized VHS video tape too? Is there any post processing I can do that will improve the image that I should do BEFORE I compress it?

  • 1
    "Raw VHS" cannot be measured in GB because it is analog. So, you already have it encoded with some other codec. If you want to save space, not produce an edited watchable video, then don't. 60 GB is nothing. 4 TB HDD costs less than $100. Or you can split your data into three 25 GB Blu-ray discs for long-term preservation. Better do both: external HDD + Blu-ray if it is really important stuff. If you want to process the videos, I would mostly pay attention to correct interlacing, or deinterlacing into 50p/60p.
    – Rusty Core
    Feb 14, 2019 at 19:38
  • 1
    Right, I guess I shouldn't say raw. I should say "uncompressed". But is the uncompressed digitization of the vhs have significantly enough information to allow it to be improved in post production? As it's a digitization of a VHS tape, I'm curious if it's actually got more useful information sense it's not like it's a raw file from the image sensors etc. Feb 14, 2019 at 19:52
  • So it is about 1-hour video? toolstud.io/video/… If I were compressing it for further storage I would use H.264 @ about 3-5 Mbit/s. I personally do not use H.265, but is is gaining popularity. Again, I would pay most attention to interlacing to avoid combing and ghosting.
    – Rusty Core
    Feb 14, 2019 at 22:26
  • 1
    If you plan on doing any colour fixing or de-noising do that before compressing, just as you would with still images. Noise can be a problem with h.264/5 because it eats up bandwidth, but whether the improvement you can get with a de-noiser is worth it is for you to decide.
    – stib
    Feb 15, 2019 at 3:55
  • because of decreased dynaimc range @stib ? As far as I can tell that's not an issue with digitized vhs tapes, versus raw photograph has information directly from the sensors, giving it a higher bitdepth and therefore more dynamic range to play with. Feb 15, 2019 at 22:40


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.