I've written a custom image unit and gotten it working satisfactorily
in Core Image Fun House. However, when I go to add it to a filter
chain in my Cocoa app, the filter chain stops working. It works fine
without my custom filter added into the mix. Looks like I'm in a
similar situation to this earlier post, which didn't get a response:
Custom Image Unit/CIFilter troubles
http://www.cocoabuilder.com/archive/message/cocoa/2005/7/8/141081
As with Petteri's case, I'm using [CIPlugIn loadAllPlugIns] to load
my plugin, which is stored in ~/Library/Graphics/Image Units. Then,
in my view's drawRect method I use the following code in to call the
filter:
shadowsFilter = [CIFilter filterWithName: @"ShadowRecovery"
keysAndValues:
@"inputImage", imageOut,
@"inputRange", [NSNumber numberWithFloat: shadowRangeValue],
@"inputBoost", [NSNumber numberWithFloat: shadowBoostValue],
nil];
imageOut = [shadowsFilter valueForKey: @"outputImage"];
[shadowsFilter retain];
My image unit is a non-executable one, with only a cikernel. As
such, I haven't defined the 'outputImage' method. Is there something
that I'm missing here? My filter works fine in Core Image Fun House,
and I don't know how to proceed.
Thanks for any pointers,
Josh
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