A set of custom filters and utilities for Apple's Core Image framework.
Available on both OS X and iOS.
Involving...
##Core Image Filters
###Filters
####YUCIRGBToneCurve
Adjusts tone response of the R, G, and B channels of an image.
The filter takes in an array of control points that define the spline curve for each color component, or for all three in the composite.
These are stored as CIVectors in an NSArray, with normalized X and Y coordinates from 0 to 1.
The defaults are [(0,0), (0.5,0.5), (1,1)]
####YUCIColorLookup
Uses a color lookup table (LUT) to remap the colors in an image. The default LUT can be found at Sources/YUCIColorLookupTableDefault.png
This filter may not work well in the default light-linear working color space. Use kCIContextWorkingColorSpace key to specify a working color space when creating the CIContext object.
####YUCISurfaceBlur
Blurs an image while preserving edges. This filter is almost identical to Photoshop's "Surface Blur" filter.
Useful for creating special effects and for removing noise or graininess. Slow on large inputRadius.
###Transitions
####YUCICrossZoomTransition
A transition that pushes the inputImage toward the viewer and then snaps back with the inputTargetImage.
####YUCIFlashTransition
Transitions from one image to another by creating a flash effect.
###Generators
####YUCIStarfieldGenerator
Generate a starfield image. Animatable by changing the inputTime parameter. Based on Star Nest by Pablo Román Andrioli
####YUCIBlobsGenerator
Generate a image with colorful blobs. Animatable by changing the inputTime parameter. Based on Blobs by @paulofalcao
##Utilities
####YUCIFilterConstructor
A singleton that conforms to CIFilterConstructor protocol.
Can be used in +[CIFilter registerFilterName:constructor:classAttributes:] to register a CIFilter. This filter constructor simply assume that the filterName is the class name of the custom CIFilter and calls [[FilterClass alloc] init] to construct a filter.
####YUCIMetalUtilities
+[YUCIMetalUtilities textureFromCGImage:device:]
Create a MTLTexture from a CGImageRef object.
##Based on Vivid
An implementation of High Pass Skin Smoothing