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Cinegobs 2.3.0.123
February 18, 2011
6:42 pm
Copperplate
Canada
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Forum Posts: 15
Member Since:
September 22, 2010
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Hi, Bo, Happy New Year! (Yes, I know, I'm 2 months late.) Anyways, I just wanted to let you know I am very much enjoying the latest version of Cinegobs Keyer. I continuously use the new feature of matte expansion… it allows me to reuse masks multiple times for taking advantage of different keying parameters!

 

This is a very stable version, I've only found 2 small bugs:

 

1. When exporting an image sequence (mine is premultiplied png), the first frame is duplicated (shows up as 000.png). (First discovered in the last pre release version.)

 

2. (This one has been in the keyer for awhile, I just hadn't mentioned it before). When turning on "ROTO" with a positive mask, the diagnostic preview doesn't work properly with the Color Difference matte and the Shadow matte. (Using those two mattes together DOES work, but the diagnostics are a little off.) However, diagnostics appears to work fine with the other mattes (hue, highlight, etc.).

 

Thanks so much again, Bo, for making this great program available!

 

~Adam

February 19, 2011
5:10 am
Bo Johansen
Korsør, Denmark
Admin
Forum Posts: 71
Member Since:
April 12, 2010
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Copperplate said:

1. When exporting an image sequence (mine is premultiplied png), the first frame is duplicated (shows up as 000.png). (First discovered in the last pre release version.)

Strange I've just tried tons of things, but I can't recreate the problem. What do you enter as filename when saving?

 

2. (This one has been in the keyer for awhile, I just

hadn't mentioned it before). When turning on "ROTO" with a positive

mask, the diagnostic preview doesn't work properly with the Color

Difference matte and the Shadow matte. (Using those two mattes together

DOES work, but the diagnostics are a little off.) However, diagnostics

appears to work fine with the other mattes (hue, highlight, etc.). 

This one I'm also unable to recreate. Strange. Could you post a screenshot of the diagnostic preview that doesn't work?

February 23, 2011
6:29 pm
Copperplate
Canada
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Forum Posts: 15
Member Since:
September 22, 2010
Offline

Hi Bo, sorry for the late response… I just discovered the possible cause of the issue today.

 

The sequence I'm keying is a 49 frame .jpg sequence, labelled: 00.jpg – 48.jpg (The simple labelling out of Sony Vegas).

 

I believe the fact that the sequence starts with 00.jpg has something to do with the issue. When I open the project and render frames 1 – 49, it always creates the extra frame labelled: Shot_047 [KEYED, Upper 6]_0000.png

 

However, when I open the .cgk file labelled: Shot_047 [KEYED, Upper 6] (Tester sees chain 2).cgk and then move the "Start Frame" slider up and then back down to frame 1, then press "render" without saving, it does not create the duplicate frame.

 

In previous versions of Cinegobs Keyer, this did not occur. I first noticed it in the very last pre-release version.

 

As to the other issue, the Diagnostic preview shows solid gray on the keyed object (no white/gray areas, like normal) when ROTO and COLOR-DIFF are activated. A single positive mask is used with the color difference keyer only (and the "screen exact color selected"). It also shows solid gray when ROTO and SHADOW are activated.

 

Thanks again.

 

~Adam

February 24, 2011
3:34 am
Bo Johansen
Korsør, Denmark
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Forum Posts: 71
Member Since:
April 12, 2010
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Copperplate said:

The sequence I'm keying is a 49 frame .jpg sequence, labelled: 00.jpg – 48.jpg (The simple labelling out of Sony Vegas).

 

I believe the fact that the sequence starts with 00.jpg has something to do with the issue. When I open the project and render frames 1 – 49, it always creates the extra frame labelled: Shot_047 [KEYED, Upper 6]_0000.png

 

However, when I open the .cgk file labelled: Shot_047 [KEYED, Upper 6] (Tester sees chain 2).cgk and then move the "Start Frame" slider up and then back down to frame 1, then press "render" without saving, it does not create the duplicate frame.

Ok, got it. Should be fixed now in the source code.

As to the other issue, the Diagnostic preview shows solid gray on the keyed object (no white/gray areas, like normal) when ROTO and COLOR-DIFF are activated. A single positive mask is used with the color difference keyer only (and the "screen exact color selected"). It also shows solid gray when ROTO and SHADOW are activated.

 I think I finally see what you mean. After applying some blur/feathering to the mask it turned gray. It's the blur that makes the value drop just below maximum (white/255). I'll take a closer look at it.

 

Thanks for your bug-reports.

February 26, 2011
7:34 pm
Copperplate
Canada
Member
Forum Posts: 15
Member Since:
September 22, 2010
Offline

Thanks Bo. And you're right about the blur, I didn't realize it was affecting it.

 

~Adam

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