Re: Core Image filters for magnification

FROM : John C. Randolph
DATE : Thu Aug 31 19:25:37 2006

On Aug 30, 2006, at 8:52 PM, Eric Smith wrote:

> Anyone know of a core image filter for magnifying an image?  Filter 
> application is:  an image of, say, 1000x1000 pixels is displayed in 
> a 256x256 box.  When the user moves the mouse over a particular 
> part of the image, he sees a circular patch magnified (displayed at 
> the original resolution).


In the Core Image session at WWDC 2005, there was an example of an 
Image Unit that did exactly that, and also generated a bezel.  Check 
the Core Image sample code, it might be there.

-jcr