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I'm trying to create an effect that amounts to burned in corners of pictures. I thought that using an alpha mask to do this would be the easiest way to do this. I thought that i could do this with a gradient fill on the alpha layer, but information on gradient fills is kind of minimal in help files. Therefore, I was thinking that the only way to create this kind of mask would be to draw a hard edged ellipses on the alpha layer, then blur it. I could then use the result as my blending mask. Is there an easier way to create the mask? |
Tom Thorp Still waters, great photos |
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Graphics Mill does not have direct support of gradient fills. So you are right - the only way to create it is to draw some shape and blur it. So the algorithm is the following: - Create empty image (the same size as target image)
- Draw ellipse, or something else
- Blur it
- Convert to grayscale
- Replace alpha channel with this image (using objBitmap.Channels.AddAlpha if no alpha is available, or objBitmap.Channels.Replace if it is already presented)
You can also prepare the mask beforehand. But it is possible simplier ways is applicable to you: Adding Vignette topic Creating Artistic Thumbnails topic Edited by user Tuesday, December 15, 2009 10:20:20 AM(UTC)
| Reason: Not specified |
Best regards, Fedor Skvortsov |
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