Unsharp Mask (Step 3)/UnsharpMask.m
#import "UnsharpMask.h" |
#import <QuartzCore/CoreImage.h> |
#import <ExtendedCoreImage/ExtendedCoreImage.h> |
@implementation UnsharpMask |
- (id)runWithInput:(id)input fromAction:(AMAction *)anAction error:(NSDictionary **)errorInfo |
{ |
NSMutableArray *output = [NSMutableArray array]; |
// create and setup the filter |
CIFilter *unsharpMask = [CIFilter filterWithName:@"CIUnsharpMask"]; |
[unsharpMask setDefaults]; |
// get the parameters |
[unsharpMask setValue: [NSNumber numberWithFloat:[[[self parameters] objectForKey:@"intensity"] floatValue]] forKey: @"inputIntensity"]; |
[unsharpMask setValue: [NSNumber numberWithFloat:[[[self parameters] objectForKey:@"radius"] floatValue]] forKey: @"inputRadius"]; |
NSEnumerator *enumerator = [input objectEnumerator]; |
CIImage *image; |
// iterate over the input |
while (image = [enumerator nextObject]) |
{ |
[unsharpMask setValue:image forKey:@"inputImage"]; |
CIImage *result = [unsharpMask valueForKey:@"outputImage"]; |
if (result) |
{ |
[result setFileURL:[image fileURL]]; |
[output addObject:result]; |
} |
} |
return output; |
} |
@end |
/* |
UnsharpMask.m |
UnsharpMask |
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