CoreImage: New Filters in iOS 14.0

iOS 14.0 recently arrived and with it, 3 new CoreImage filters:

1. Color Absolute Difference
2. Color Threshold
3. Color Threshold Otsu

Unfortunately, Apple has not yet updated the CoreImage documentation to include these new filters. Instead, I’ve created a Swift playground that enumerates all of the properties of a CIFilter. Here are the results for those 3 filters:

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[gist https://gist.github.com/JoshuaSullivan/c3c167ac2b503efbfe6916a7405a0b98 file=”ColorAbsoluteDifference.txt”]

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[gist https://gist.github.com/JoshuaSullivan/c3c167ac2b503efbfe6916a7405a0b98 file=”ColorThreshold.txt”]

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[gist https://gist.github.com/JoshuaSullivan/c3c167ac2b503efbfe6916a7405a0b98 file=”ColorThresholdOtsu.txt”]

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I have no idea what the difference is between the Color Threshold and the Color Threshold Otsu filters. I’ll follow up if I can produce a workable demo.