video vignette

[David Banner]

What software would be best create the way he is sharp but there is a circle of blur around him

[Cornucopia]

In an NLE, create an effect track/layer, then on that new layer, draw a circle around the face, then invert the selection, then apply the blur.
If your nle doesn’t support that kind of track, duplicate your existing video layer, apply the blur on the topmost layer, then draw the selection and delete the face oval.

Lots of variations on these.

Scott

[pandy]

As Cornucopia said there is many ways to do such thing - you can apply (overlay) blurred video with added alpha (transparency) channel to base video replacing selected (trough alpha mask) areas...

[jagabo]

The sample video didn't use any tracking, just a fixed mask where the center of the frame was sharp and the left and right edges blurred. To duplicate that all you have to do is take your original video an overlay a blurred copy using an alpha mask. At the top left is the original image, the top right a blurred version, bottom left is the alpha mask, and the bottom right the final output.

[David Banner]

The sample video didn't use any tracking, just a fixed mask where the center of the frame was sharp and the left and right edges blurred. To duplicate that all you have to do is take your original video an overlay a blurred copy using an alpha mask. At the top left is the original image, the top right a blurred version, bottom left is the alpha mask, and the bottom right the final output.

ok thanks. That will allow the person to move and still be be sharp? You have to keep the person in the centre?

[pandy]

That will allow the person to move and still be be sharp? You have to keep the person in the centre?

Nope and yes, if mask will be corresponding to person move then person will be unfiltered but you need to create motion mask and this is usually very advanced thing - only few NLE support tracking. For simple application you need to first pre-calculate motion mask (usually manually - sorry - it may be partially made easier if you accept for example regular e.g. rectangle mask that only use predefined trajectory).

[David Banner]

https://www.youtube.com/watch?v=8uKERICJbkA

I tried this in vegas with a clip of my own a .mov file but it does not work

[poisondeathray]

Since you have vegas, you can animate the blur using a mask (animate the mask to follow the target/person)

For the other transparency issue, it might be that your MOV does not have a proper alpha channel, or might be a codec issue. You would need to provide more info

[David Banner]

Since you have vegas, you can animate the blur using a mask (animate the mask to follow the target/person)

For the other transparency issue, it might be that your MOV does not have a proper alpha channel, or might be a codec issue. You would need to provide more info

Thanks.how would i know if the mov has a proper alpha channel or not. It was shot with a nikon D3200. Is it the 8 bits under bit depth? If so how can i produce a.mov with an alpha channel

This is the media info of the other transparency issue clip
-----------------------------------------------------------------

General
Complete name : C:\Users\sample.MOV
Format : MPEG-4
Format profile : QuickTime
Codec ID : qt 2007.09 (qt /niko)
File size : 36.8 MiB
Duration : 13 s 13 ms
Overall bit rate : 23.7 Mb/s
Encoded date : UTC 2014-11-12 11:41:59
Tagged date : UTC 2014-11-12 11:41:59
NCDT : NCTG

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4
Format settings, CABAC : Yes
Format settings, ReFrames : 2 frames
Format settings, GOP : M=3, N=12
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 13 s 13 ms
Bit rate : 22.0 Mb/s
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 23.976 (24000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.443
Stream size : 34.2 MiB (93%)
Language : English
Encoded date : UTC 2014-11-12 11:41:59
Tagged date : UTC 2014-11-12 11:41:59
Color range : Full
Color primaries : BT.709
Matrix coefficients : BT.601
colour_primaries_Original : BT.709
transfer_characteristics_Original : BT.470 System M
matrix_coefficients_Original : BT.601

Audio
ID : 2
Format : PCM
Format settings, Endianness : Little
Format settings, Sign : Signed
Codec ID : sowt
Duration : 13 s 13 ms
Bit rate mode : Constant
Bit rate : 1 536 kb/s
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 48.0 kHz
Bit depth : 16 bits
Stream size : 2.38 MiB (6%)
Language : English
Encoded date : UTC 2014-11-12 11:41:59
Tagged date : UTC 2014-11-12 11:41:59

[jagabo]

Cameras don't shoot with an alpha channel. How would the camera know you want an alpha channel that follows a person walking through the frame? You have to create an alpha channel. What you want to do is something like this but where the circle marks the clear portion of the picture:

https://www.youtube.com/watch?v=jB94m-bQnRc

[David Banner]

Cameras don't shoot with an alpha channel. How would the camera know you want an alpha channel that follows a person walking through the frame? You have to create an alpha channel. What you want to do is something like this but where the circle marks the clear portion of the picture:

https://www.youtube.com/watch?v=jB94m-bQnRc

Thanks. Think you told me that before ,sorry. Appreciate the help