Performs Sobel edge detection, but applies a threshold instead of giving gradual strength value
threshold: Any edge above this threshold will be black, and anything below white.
A simulated tilt shift lens effect
blurSize: A multiplier for the size of the out-of-focus blur, ranging from 0.0 on up
topFocusLevel: The normalized location of the top of the in-focus area in the image, this value should be lower than bottomFocusLevel
bottomFocusLevel: The normalized location of the bottom of the in-focus area in the image, this value should be higher than topFocusLevel
focusFallOffRate: The rate at which the image gets blurry away from the in-focus region
This uses Sobel edge detection to place a black border around objects, and then it quantizes the colors present in the image to give a cartoon-like quality to the image.