PNG video compression vs. uncompressed

Mikdog · Post by **Mikdog** » Thu Sep 17, 2009 12:59 am

Hi,

So I've rendered out my video with PNG compression, MILLIONS OF COLORS + with 'best' selected. I used this mostly to test if things worked.

Now that I have all the scenes put together I'm wondering if I need to render things out again for final edit, without compression? I've compared image results side-by-side and I can't really notice the difference. Mainly it seems to be around the edges of the images.

Anyone have any experience with this? Am I losing out on noticeable image/color/edge fidelity?

Thanks,

Mike

slowtiger · Post by **slowtiger** » Thu Sep 17, 2009 10:34 am

I didn't notice any difference between "PNG best quality millions" and "uncompressed". However, there was a difference to "Animation", which created visible horizontal line artifacts, although this codec counts as "lossless".

PNG will contain the full RGB range of all colours. I think that "Uncompressed 4:2:2" reduces this, but am not sure about. So I use this one only for delivering to PostPro who specifically ask for it.

PNG, no matter wether image sequence or .MOV file, seems to be the best intermediate format between programs.

rylleman · Post by **rylleman** » Fri Sep 18, 2009 8:23 am

Png-images are virtually lossless and as slowtiger says is a very good intermediate format. I use png-sequences it for all my cross application works, it's fast, good quality and versatile.