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 Author Thread: Problem with Grayscaling
coolaworld is not online. Last active: 9/27/2005 3:34:43 PM coolaworld
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Joined: 09 Aug 2004
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Problem with Grayscaling
Posted: 09 Aug 2004 03:25 PM
Hi all

I'm trying to create my own transition. I get most of those transitions to work with the guide from msdn. But only one seems not working correctly. It's the "Grey" (Grayscaling) for Age.
The jerkyness and other options do work fine, but that one, doesn't want to get active. I've set the darn thing to true, changed the Param name to Grayscale, Gray, Desaturate, nothing helps. The video remains in color. I'm desperate. Searching the whole day, but no good solution. And the grayscale appears when I use the normal Age (100). But not in the customized way.

Can somebody help me? I've visited a lot of sites and now I found this forum, where I hope to find a solution.

Big thanks anyway!
Rehan is not online. Last active: 5/8/2012 5:49:17 PM Rehan
www.rehanfx.org
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Joined: 21 Apr 2004
Total Posts: 2176
 
Re: Problem with Grayscaling
Posted: 12 Aug 2004 09:03 AM
I am confused what is it you are trying to do? An effect or a transition ? Please post your code. Age is an effect (it is an image filter), how are you using it to create a transition?

Also the documentation is slightly wrong, the "Grey" parameter takes a "long" value but only in boolean manner:

0 = no greyscale
1 = greyscale

Any non-zero integer value is same as 1
Any non-integer value is same as 0

Hope this helps.

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coolaworld is not online. Last active: 9/27/2005 3:34:43 PM coolaworld
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Re: Problem with Grayscaling
Posted: 12 Aug 2004 09:21 AM
well, i looked at the msdncodes and wanted to create an aged effect by myself.

This is the info that ms gives us:
Parameter Type Default Range Description 

BlurAmount long 0 0 to 255 Higher value means blurrier image.
EdgeFade long 0 0 to 255 Higher value means more edge fade.
FilmJerkiness long 0 0 to 255 Degree of film jerkiness, where 0 is least and 255 is most.
FlickerFrequency long 0 0, 1 to 255 This effect sets the darkness of intervening, regularly spaced frames, where the lower the number, the darker the intervening frames, giving a flickering appearance. Zero means no visible flicker.
FrameSkips long 0 0 to 255 Number of frames to skip before showing the next frame.
--->Grey bool false true, false True means grayscale (black-and-white) image.<---
LineFrequency long 0 0 to 255 The frequency of white traveling "cracks" or lines in the image, where 0 creates the fewest lines and 255 the most.
LintFrequency long 0 0 to 255 Frequency of "lint" or "tears" on the screen, where 0 creates the least and 255 the most.
NoiseFrequency long 0 0 to 255 Adds noise to the image, where 0 creates the least noise and 255 the most.
PosterizeBits long 0 0 to 8 Amount of posterization to apply to the image, where zero is least and 8 is most.

And it says that if you want to Grey your video, you have to add the Parameter Grey and value=true.
But this doesn't work for me. It's still colored.

Example code I used:

<TransitionsAndEffects Version="1.0">
<Effects>
<EffectDLL guid="{ADEADEB8-E54B-11d1-9A72-0000F875EADE}">
<Effect iconid="2" name="Age, 20 years" >
<Param name="EdgeFade" value="100" />
<Param name="FilmJerkiness" value="255" />
<Param name="FlickerFrequency" value="250" />
<Param name="LineFrequency" value="200" />
<Param name="LintFrequency" value="150" />
<Param name="NoiseFrequency" value="50" />
<Param name="Grey" value="true" />
<Param name="PosterizeBits" value="2" />
</Effect>
</EffectDLL>
</Effects>
</TransitionsAndEffects>

Everything is fine except "Grey".
coolaworld is not online. Last active: 9/27/2005 3:34:43 PM coolaworld
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Re: Problem with Grayscaling
Posted: 12 Aug 2004 09:24 AM
And i'm sorry for my first sentance, it was late that night and I was very tired. Mistakes happen.
Rehan is not online. Last active: 5/8/2012 5:49:17 PM Rehan
www.rehanfx.org
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Re: Problem with Grayscaling
Posted: 12 Aug 2004 09:36 AM
Sorry I didnt get that... Which sentense is mistaken?

Anyway, as I explained in my earlier message the msdn documentation is slightly wrong. it does not take true/false values, but 1 or 0.

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coolaworld is not online. Last active: 9/27/2005 3:34:43 PM coolaworld
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Re: Problem with Grayscaling
Posted: 12 Aug 2004 09:38 AM
[off topic]It was this one: "I'm trying to create my own transition."
I ment effect on that time.[/off topic]

Ok, I'll try it and post results here.
coolaworld is not online. Last active: 9/27/2005 3:34:43 PM coolaworld
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Joined: 09 Aug 2004
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Re: Problem with Grayscaling
Posted: 12 Aug 2004 09:40 AM
Super, it works! Thank you very much!
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