More on the PoG DVDs
Jul. 5th, 2006 04:30 pm![[personal profile]](https://www.dreamwidth.org/img/silk/identity/user.png){kind=small}
teddogBut first, a quick lesson that deals with the issue I was dealing with.
Safe Zones
Early TV picture tubes distorted the image near the edges, so it was decided that the picture would be overscanned with the edge of the picture hidden by a plastic bezel. However, when working with video on a computer you see the whole image, so you must always be aware that the edges of your image will not be visible on a TV. The non-visible portion of the image corresponds roughly to the area inset 5% from each edge (about 36 pixels from each side and 24 pixels from the top and bottom). The area inside is often called the "action-safe zone." Make sure that anything that has to be seen is inside this zone.
Additionally, there is another region that is inset 5% from the edges of the action-safe zone known as the "title-safe zone." Older picture tubes still produced some distortion outside this zone, making text harder to read, so titles were always including inside this zone. Most TVs nowadays don't have a problem with text outside of this zone, but it's still common practice to use it. You may want to play it safe, but if it's not possible I wouldn't worry about it, since the likelihood of someone viewing the video on an old TV that has this problem is low.
From:
http://theory.lcs.mit.edu/~edemaine/SoCG2003_multimedia/graphics.html
The "garbage" I picked up is located outside of the Safe Zone, which is why I only noticed it on the computer. The image looks fine on a TV set. I'm not going to bitch about image flaws that people watching the broadcast would have never noticed.
So, DVD dumpin' is a-go-go!
Last night I managed to do Genetic Engineering, Ray Bradbury, The Devil and Voice/American Artform. The latter were recorded in SLP back in 2000 and some of the image is jumpy and iffy, but other times it's suprising clear.
Safe Zones
Early TV picture tubes distorted the image near the edges, so it was decided that the picture would be overscanned with the edge of the picture hidden by a plastic bezel. However, when working with video on a computer you see the whole image, so you must always be aware that the edges of your image will not be visible on a TV. The non-visible portion of the image corresponds roughly to the area inset 5% from each edge (about 36 pixels from each side and 24 pixels from the top and bottom). The area inside is often called the "action-safe zone." Make sure that anything that has to be seen is inside this zone.
Additionally, there is another region that is inset 5% from the edges of the action-safe zone known as the "title-safe zone." Older picture tubes still produced some distortion outside this zone, making text harder to read, so titles were always including inside this zone. Most TVs nowadays don't have a problem with text outside of this zone, but it's still common practice to use it. You may want to play it safe, but if it's not possible I wouldn't worry about it, since the likelihood of someone viewing the video on an old TV that has this problem is low.
From:
http://theory.lcs.mit.edu/~edemaine/SoCG2003_multimedia/graphics.html
The "garbage" I picked up is located outside of the Safe Zone, which is why I only noticed it on the computer. The image looks fine on a TV set. I'm not going to bitch about image flaws that people watching the broadcast would have never noticed.
So, DVD dumpin' is a-go-go!
Last night I managed to do Genetic Engineering, Ray Bradbury, The Devil and Voice/American Artform. The latter were recorded in SLP back in 2000 and some of the image is jumpy and iffy, but other times it's suprising clear.
