Uncompressed 8-bit vs 10-bit MOV to Huffyuv AVI?
Hello,
I have been playing with Black Magic Design Intensity Shuttle for Thunderbolt. Will probably use workflow: LD player Pioneer Elite LD-S2 Composite out -> Panasonic DMR-ES25 Component -> Black Magic Design Intensity Shuttle for Thunderbolt. BM has 3 options: 8 bit uncompressed MOV, 10 bit uncompressed MOV and DPX. I have no idea what DPX is? I was planning on recording in either 8 bit or 10 bit uncompressed MOV and then convert it to Huffyuv AVI using AVISynth QTInput. First off all for the source such as LD is 8 bit uncompressed MOV good enough? Or would 10 bit be more preferred? Second question is: am I losing the quality if I perform conversion to Huffyuv AVI using QTInput? I don't want to keep uncompressed since it takes too much disk space. But I don't want to be losing video quality either. Third - what the hell is DPX? Just sequence of images? Thanks. |
Why not HDMI?
BlackMagic 10-bit uses the v210 pixel format, which isn't supported by Huffyuv. DPX is used for post production work: http://en.wikipedia.org/wiki/DPX |
Thank you. I couldn't make HDMI work yet. BM doesn't recognize the signal. I have ordered this http://www.amazon.com/gp/product/B00...?ie=UTF8&psc=1 as suggested. I will see if it's going to recognize HDMI.
I will go with 8 bit after reading this: http://www.digitalpreservation.gov/f...53.shtml#notes --Leonid |
Quote:
And I wanted to quote that site: Quote:
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8- vs. 10-bit would depend on what one intends to do with the captured material, and to a certain extent the image content.
8-bit is fine for most purposes - the human eye is only good for about 7-bits of gray scale. 8-bits should look like a smooth gradient, 6-bits can look banded, and 7-bits will depend on how good the viewer's eyes are (and the display of course). However, if one intends to do a significant amount of editing, especially large amounts of color correction, brightness/contrast adjustment, or filtering then 10-bit may (its not assured) give a nicer end result due to reduction of truncation artifacts. (6 dB of gain applied to an 8-bit gray scale will brings it down to 7-bit size steps.) It will be more apparent in images with large areas of relatively uniform brightness; e.g., sky, flat walls, etc. |
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