Colorimetry

msaadn · 23rd September 2009, 00:05

I've been using MediaInfo since the beginning, So there is this colorimetry which in most videos I've seen is 4:2:0

So what is this? what does it tell?

tph · 23rd September 2009, 02:23

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

J_Darnley · 23rd September 2009, 02:25

Oh come on. Wikipedia redirects you for "4:2:0" to the right page: http://en.wikipedia.org/wiki/4:2:0

msaadn · 23rd September 2009, 02:38

Well what I googled and Wikied was colorimetry, not 4:2:0. Thankx anyway, I'll check them out.

thewebchat · 23rd September 2009, 02:45

4:2:0 is not a type of colorimetry. However, the meaning of YUV X:X:X notation is explained in this post by TinTime: http://forum.doom9.org/showthread.ph...41#post1310741

Colorimetry is a broad term related to various sciences that study color perception, explained by Wikipedia at http://en.wikipedia.org/wiki/Colorimetry

You might also see people refer to the RGB->YUV constants used in digital video referred to as the "colorimetry" of the video. This is explained at http://en.wikipedia.org/wiki/Color_m...hnical_details

msaadn · 23rd September 2009, 02:57

Many thanks thewebchat. That really cleared it all up. Thank you all.

23rd September 2009, 00:05	#1 \| Link
msaadn Anime Encoder Join Date: Jun 2009 Location: Along The Red Sea... Posts: 38	Colorimetry I've been using MediaInfo since the beginning, So there is this colorimetry which in most videos I've seen is 4:2:0 So what is this? what does it tell? __________________ "Do Not Hurry, Death Is Faster Than You" Ńő Μăţţĕř Ŵĥăţ Ĉőđĕ Ĺŷőķő Řŏĉķš !!!

23rd September 2009, 02:25	#3 \| Link
J_Darnley Registered User Join Date: May 2006 Posts: 957	Oh come on. Wikipedia redirects you for "4:2:0" to the right page: http://en.wikipedia.org/wiki/4:2:0 __________________ x264 log explained \|\| x264 deblocking how-to preset -> tune -> user set options -> fast first pass -> profile -> level Doom10 - Of course it's better, it's one more.

23rd September 2009, 02:38	#4 \| Link
msaadn Anime Encoder Join Date: Jun 2009 Location: Along The Red Sea... Posts: 38	Well what I googled and Wikied was colorimetry, not 4:2:0. Thankx anyway, I'll check them out. __________________ "Do Not Hurry, Death Is Faster Than You" Ńő Μăţţĕř Ŵĥăţ Ĉőđĕ Ĺŷőķő Řŏĉķš !!!

23rd September 2009, 02:45	#5 \| Link
thewebchat Advanced Blogging Join Date: May 2009 Posts: 480	4:2:0 is not a type of colorimetry. However, the meaning of YUV X:X:X notation is explained in this post by TinTime: http://forum.doom9.org/showthread.ph...41#post1310741 Colorimetry is a broad term related to various sciences that study color perception, explained by Wikipedia at http://en.wikipedia.org/wiki/Colorimetry You might also see people refer to the RGB->YUV constants used in digital video referred to as the "colorimetry" of the video. This is explained at http://en.wikipedia.org/wiki/Color_m...hnical_details Last edited by thewebchat; 23rd September 2009 at 02:49.

23rd September 2009, 02:57	#6 \| Link
msaadn Anime Encoder Join Date: Jun 2009 Location: Along The Red Sea... Posts: 38	Many thanks thewebchat. That really cleared it all up. Thank you all. __________________ "Do Not Hurry, Death Is Faster Than You" Ńő Μăţţĕř Ŵĥăţ Ĉőđĕ Ĺŷőķő Řŏĉķš !!!

23rd September 2009, 02:23	#2 \| Link
tph Registered User Join Date: May 2008 Posts: 41	http://en.wikipedia.org/wiki/Chroma_subsampling

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