iOS 5 是否支持模糊 CoreImage 过滤器? [英] Does iOS 5 support blur CoreImage fiters?

问题描述

根据文档，它应该支持模糊，请注意在 iOS 5.0 及更高版本中可用":

According to the documentation it should support blurring, note the "Available in iOS 5.0 and later":

CIFilter 类参考

但根据设备，它没有:

[CIFilter filterNamesInCategory:kCICategoryBlur];

什么都不返回.

根据以下内容，只有这些过滤器可用于我的 iPhone 和模拟器(均运行 5.0):

According to the following only these filters are available on my iPhone and Simulator (which are both running 5.0):

[CIFilter filterNamesInCategory:kCICategoryBuiltIn]

CIAdditionCompositing,
CIAffineTransform,
CICheckerboardGenerator,
CIColorBlendMode,
CIColorBurnBlendMode,
CIColorControls,
CIColorCube,
CIColorDodgeBlendMode,
CIColorInvert,
CIColorMatrix,
CIColorMonochrome,
CIConstantColorGenerator,
CICrop,
CIDarkenBlendMode,
CIDifferenceBlendMode,
CIExclusionBlendMode,
CIExposureAdjust,
CIFalseColor,
CIGammaAdjust,
CIGaussianGradient,
CIHardLightBlendMode,
CIHighlightShadowAdjust,
CIHueAdjust,
CIHueBlendMode,
CILightenBlendMode,
CILinearGradient,
CILuminosityBlendMode,
CIMaximumCompositing,
CIMinimumCompositing,
CIMultiplyBlendMode,
CIMultiplyCompositing,
CIOverlayBlendMode,
CIRadialGradient,
CISaturationBlendMode,
CIScreenBlendMode,
CISepiaTone,
CISoftLightBlendMode,
CISourceAtopCompositing,
CISourceInCompositing,
CISourceOutCompositing,
CISourceOverCompositing,
CIStraightenFilter,
CIStripesGenerator,
CITemperatureAndTint,
CIToneCurve,
CIVibrance,
CIVignette,
CIWhitePointAdjust

推荐答案

遗憾的是，它不支持任何模糊.为此，您必须自己动手.

Unfortunately, it does not support any blurs. For that, you'll have to roll your own.

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