Alpha Channel Transparency - applied to an existing image

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This topic and its replies were posted before the current version of LEADTOOLS was released and may no longer be applicable.

#1 Posted : Sunday, December 10, 2006 5:15:06 PM(UTC)

Cure

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Posts: 5

Is there any way to apply transparency to an existing image? For example I'd like to put a font on top of an image, however the font is surrounded by white. Is there any way to remove all that white and replace it with the Transparent Alpha Channel?

(Can't attach images, so please see the following link)

http://www15.brinkster.com/cure1999/

Thanks,
Rob


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#2 Posted : Sunday, December 10, 2006 10:40:06 PM(UTC)

Maen Hasan

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Posts: 1,326

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Hello,

If you have the font on a white image and you want to add this font on a different image, you can use the combine method.
The details depend on the programming interface that you use. What is the programming interface (OCX, COM, APi, C++ ClassLib, .Net, etc.) that you use?

Thanks,
Maen Badwan
LEADTOOLS Technical Support

#3 Posted : Monday, December 11, 2006 10:54:08 AM(UTC)

Cure

Groups: Registered
Posts: 5

Thank you for the response. I haven't started development yet, but the platform will be ASP/ASP.NET.

One more question while we're here. I've read the program allows you to access individual pixels. Does this include reading and writing a color to a specific pixel?

Thanks,

Rob

#4 Posted : Monday, December 11, 2006 11:57:49 PM(UTC)

Bashar

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If you are using the .NET classes, then you can use the GetPixelColor and SetPixelColor of the IRasterImage class..

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