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Post #1285363

Author
Williarob
Parent topic
RAW DV VHS transfers of ISD Executor and maybe more.
Link to post in topic
https://originaltrilogy.com/post/id/1285363/action/topic#1285363
Date created
16-Jun-2019, 1:02 PM

SF01 said:

Williarob said:

The biggest problem I found with DV capture is that is uses 4:1:1 chroma subsampling which really reduces the picture quality.

In 4:1:1 chroma subsampling, the horizontal color resolution is quartered to reduce the bandwidth by half. In 4:2:2 chroma subsampling the two chroma components are sampled at half the sample rate of luma: the horizontal chroma resolution is halved. This reduces the bandwidth of an uncompressed video signal by one-third with little to no visual difference.

https://en.wikipedia.org/wiki/Chroma_subsampling

You are completely right about 4:1:1, but you might have missed one important detail. The ISD is PAL and I’m capturing in PAL and in PAL the chroma subsampling is 4:2:0, not 4:1:1, which looks light years better.

Oh, I didn’t know that it was 4:2:0 in PAL. That should look much better 😃 Carry on!