Frage von joerg082:
I was previously in the topic Green Screen loaded, but unfortunately the implementation is bad. Is this perhaps s.der poor resolution (not HD) or miniDV colors saves not enough (in comparison to DigiBeta)?
I shoot with Canon XL2, use a green cloth (supposedly for extra green screen, but the substance is not the problem), did the whole thing with 3Arri headlights lit and with After Effects CS3 ausgekeyt.
Did it the green light as evenly lit as possible, but intentionally kept quite dark (realized with 800W Arri Softbox with). Was very evenly lit green. 2. Arri I have as a leader of the front light directly used, but synonymous with Frost filter worked (person softly lit, no shadows on Green Screen). 3. Arri I of the rear light as Spitz made harsher light, showed a good person to contours especially the hair.
In After Effects was the result of modest. Especially s.den poor (skin) (T-shirt had to) was the result of very kriselig, so no clean keyen, I always see those stairs ...
What am I doing wrong?
Antwort von tommyb:
Generally you need to Keyen possible signal quality. If you turn on computer, then you'll get s.Ende a video with 4:2:0 color space, is not inferior to Keyen and not particularly well suited.
Basically you had to shoot HD have in HD keyen and then runterskalieren in the hope that everything fransige disappears. However, HD does not equal HD, because there are different format synonymous with different color spaces.
From price-/Leistungsverhältnis You probably had the best result obtained with P2 HD. There are with 100 mbit / s ordinary reserves what compression artifacts, but on the color space (4:2:2 whether or worse) I am currently not sure. That should be Wolfgang (WoWu) more light into the dark bring.
Otherwise, P2 cameras synonymous DVCPro 50th Although this is SD, but works with 50mbit and 4:2:2.
Now I shall say a few things:
- If SD (miniDV, Digibeta, etc.) to Keyen, then to never turn 16:9, only 4:3!
- Take no HDV, this is hardly better than DV
- If possible, the signal from the camera unkoprimiert tap (eg, via component -> on notebook as high Digitizer)
- You'll see stairs ... Du hast dein Project rotated interlaced or progressive? If interlaced and rotated so synonymous geschnitten: Export it to DVD and watch it going on, still stairs?
Antwort von joerg082:
Is this really the problem is the Camera? Had the feeling many have fairly clean synonymous with 4:2:0 gekeyt.
I have only used the Canon XL2 for more financially at the moment is not possible. Had thought that's enough. Not to be still because the Canon A1 ...
Hab rotated but in 16:9, why is this bad?
Have synonymous with rotated fields, of course, could change to 25 frames, but find the picture quite jerky like I do not.
I want the video to a Flash animation on the Internet to create, and therefore would make sense already full, but as I said the picture I do not like.
Thank you
Antwort von MarcBallhaus:
I want the video to a Flash animation on the Internet to create, and therefore would make sense already full, but as I said the picture I do not like.
Thank you LOL ... Flash Ani? Then I would anyway with 30p rotate, not with 25th Your problem is in fact the Cam, DV 4:2:0 to keyen is not easy. Miet dir ne camera but for one day, but kost nix. The EX1 is a great way, synonymous to keyen, although it only has 4:2:0, but extremely high sharpness and HD.
MB
Antwort von tommyb:
Because with SD anamorphic 16:9 saved. That means when you play it will be of 720x576 to 1024x576 (for Klugscheißer: 1049x576, PAL DV is yes!) Stretched. This can (should not) have a negative impact on the Keyen impact, because now more synonymous with the horizontal interpolation is dependent on the program and which may lead to poor results.
To illustrate what I've prepared:
The first picture is your source, just as the camera before you get compression.
The Camera staucht the Picture to 720x576 pixels (Picture 2) and stores it on tape.
Your editing program / Television entstauchen the picture again with the correct aspect ratio, so that people do not look so thin (Picture 3).
The same happens with 4:3, but not so strong:
If we look at the picture now in detail below:
Person 1 is in front of the 16:9 Compression.
Person 2 is 16:9 on the TV, on average.
Person 3 is in front of the 4:3 compression.
Person 4 is 4:3 na You see it already.
Pay now to the horizontal lines (of left to right). These are basically the same from anywhere. Why? Because they are in the whole process is not affected.
Quite different from the vertical lines. When 16:9 is much more extreme than 4:3 equalized, which leads to blurring the edges. Eight times in the leg at 16:9, because it 3 different Abstufunden (light, dark, black). 4:3 For only 2nd
Which Picture is better keyen as well?
So much relating to qualitative differences in the Keyen of anamorphic material;)
And now to another.
You wrote that you made a bit darker green searched. I recommend you post in the Green in the saturation levels, so it really is beautiful green poison. Then it should be better keyen leave.
In addition, you must make sure that your cast reflections on any case of Green Screen abkriegt. Latex suits are not recommended;)
All this can lead to a better result, but not necessarily in DV.
Antwort von tommyb:
The EX1 is a great way, synonymous to keyen, although it only has 4:2:0, but extremely high sharpness and HD.
MB It is not about the sharpness but the color space. To Keyen will now look at the color and the use of all devices with 4:2:0 subsampling restricted (color, bla bla). And it may even a runterskalieren the HD material only partially compensated, because here interpolations are made of the finest varieties are the result still may look worse.
A device with 4:2:2 (Digibeta, DVCPRO50) is mandatory if the result should be reasonable, for example, already synonymous Panasonic HVX200 (despite pixel shift), especially if you are not a special green-screen studio has ( "The Post makes the already! ").
Antwort von Manuell:
Hi,
4:2:2 is obviously better than 4:2:0, but in the film "On bad ground" was so synonymous with the Canon XL2 rotated and synonymous Greesncreen-made recordings.
The DVD looks very synonymous decent. So it is apparently synonymous with the possible, available to you, Camera an acceptable result.
http://www.hackermovies.com/cmsfiles/83988/83988_03.jpg
mfg
Manuel
Antwort von joerg082:
hey thank you for all the info.
I've tried everything again, which is very much brought the 4:3 mode. Thanks for the tip.
Have the next person yet removed from the Green Screen to with more depth to be able to work and to avoid green reflections. And lo and behold now I am fairly satisfied with the outcome:) I thank you and it is quite synonymous to miniDV to make such recordings. Surely it is better, but for a website, it is completely ...
I am with the outcome now very satisfied.
Greetings Jörg
Antwort von tommyb:
Well that's great!
