Potentially add Apple internal filters
frankschlegel opened this issue · 2 comments
Through a question on StackOverflow I learned that the internal filters that are part of the CIImage.autoAdjustmentFilters() can actually be initialized independently by their name.
Digging a bit deeper I found that there are a lot of interesting internal filters, all of them belonging to the CICategoryApplePrivate category. Here is a list retrieved by CIFilter.filterNames(inCategory: "CICategoryApplePrivate"):
CIAppleSmithGossettScaleCIAreaMinMaxNormalizeCIAreaMinMaxRedNormalizeCIAreaRedCentroidCIAreaRedRadialCentroidCIASG50PercentCIASG60PercentCIASG66PercentCIASG75PercentCIASG80PercentCICheapBilateralCICheapBlurCICheapMorphologyCICheatBlurCICircleGeneratorCIColorBalanceCIColorPolynomialInverseCIContrastEnhancerCIDepthEffectApplyBlurMapCIDepthEffectMakeBlurMapCIDesaturateShadowsCIDisparityRefinementCIDynamicFoodCIDynamicRenderCIFaceBalanceCIFocalPlaneCIGaussianBlurXYCIHardMixBlendModeCIHighKeyCIInpaintingFilterCIIntegralImageCILinearLightBlendModeCIMattingSolverCIMirrorCIMorphologyLaplacianCIOpacityCIPaperWashCIPassThroughColorFilterCIPassThroughGeneralAltFilterCIPassThroughGeneralFilterCIPassThroughIntermediateFilterCIPassThroughSelectFrom3CIPassThroughWarpFilterCIPercentileRedCIPhotoGrainCIPlusDarkerCompositingCIPlusLighterCompositingCIPortraitEffectBlackCIPortraitEffectBlackoutMonoCIPortraitEffectCommercialCIPortraitEffectContourCIPortraitEffectContourV2CIPortraitEffectLightCIPortraitEffectLightV2CIPortraitEffectStageCIPortraitEffectStageMonoCIPortraitEffectStageMonoV2CIPortraitEffectStageV2CIPortraitEffectStageWhiteCIPortraitEffectStudioCIPortraitEffectStudioV2CIPremultiplyCIProSharpenEdgesCIPseudoMedianCIRectangleGeneratorCIRedEyeCorrectionsCIRingBlurCISimpleTileCISingleChannelColorMapCISkyAndGrassAdjustCISmartBlackAndWhiteCISmartColorFilterCISmartGradientCISmartToneFilterCISoftCubicUpsampleCIStretchCIUnpremultiplyCIVariableBoxBlurCIVividLightBlendModeCIWrapMirrorCUIInnerBevelEmbossFilterCUIInnerGlowOrShadowFilterCUIOuterBevelEmbossFilterCUIOuterGlowOrShadowFilterCUIScaleClampFilterCUIShapeEffectBlur1
Their attributes also list their parameters, though they are not documented very well. But I think they would make a nice addition to CIFilter.io regardless.
It's an interesting idea! I'd say this makes more sense for an explanatory blog post or something, though - I assume that because these are filters are private, they're subject to change or removal at any time, so they're never safe to use in an app. Would definitely accept a PR to have a flag in the app for including these filters in the json output so you could view them more easily, though! Or even an article on a separate page on the site that goes through them
I noticed in that stackoverflow that some of these filters are actually listed, though - maybe we could append the filters returned from autoAdjustmentFilters to the cifilter.io json or something? Those are relatively public and documented, so they probably make sense to include