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Post #1285347

Author
Williarob
Parent topic
RAW DV VHS transfers of ISD Executor and maybe more.
Link to post in topic
https://originaltrilogy.com/post/id/1285347/action/topic#1285347
Date created
16-Jun-2019, 9:42 AM

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

I tested it for laserdisc capture, and found it wanting:

Airplane LD captured as DV (4:1:1):

DV

Same disc recaptured as Lagarith 4:2:2:

AVI

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