macos 如何获取 CIFilter 类中的过滤器名称列表？

Question

提问by Jobin Jose

I am using the following code for exposure adjustment and its working. I need the filter names for sharpen, denoise, highlighs, color temperature, shadows, blur, etc.

我正在使用以下代码进行曝光调整及其工作。我需要用于锐化、降噪、高光、色温、阴影、模糊等的过滤器名称。

[CIFilter filterWithName: @"CIExposureAdjust"
                      keysAndValues: @"inputImage", [_imageView image], nil];

Answer 1

回答by Justin Boo

I was writing to your earlier post link to all filters. I will repeat: link to all filters.

我正在写你之前的帖子链接到所有过滤器。我会重复：链接到所有过滤器。

And for example You need Blur effect. Blur is category and have 7 filters:

例如你需要模糊效果。模糊是类别，有 7 个过滤器：

CIBoxBlur
CIDiscBlur
CIGaussianBlur
CIMedianFilter
CIMotionBlur
CINoiseReduction
CIZoomBlur.

CIBoxBlur
CIDiscBlur
高斯模糊
中值滤波器
运动模糊
CI降噪
CIZoomBlur。

And etc..

等等..

Answer 2

回答by Rob Keniger

All you need to do is ask CIFilterfor the filter names. You can then ask each filter for its attributes, which returns a dictionary that describes each input and output parameter that the filter accepts.

您需要做的就是询问CIFilter过滤器名称。然后，您可以向每个过滤器询问它的attributes，它返回一个描述过滤器接受的每个输入和输出参数的字典。

NSArray* filters = [CIFilter filterNamesInCategories:nil];
for (NSString* filterName in filters)
{
    NSLog(@"Filter: %@", filterName);
    NSLog(@"Parameters: %@", [[CIFilter filterWithName:filterName] attributes]);
}

For example, this is the output of the above code for the CIZoomBlurfilter:

例如，这是上述CIZoomBlur过滤器代码的输出：

Filter: CIZoomBlur
Parameters: {
    CIAttributeDescription = "Simulates the effect of zooming the camera while capturing the image.";
    CIAttributeFilterCategories =     (
        CICategoryBlur,
        CICategoryVideo,
        CICategoryStillImage,
        CICategoryBuiltIn
    );
    CIAttributeFilterDisplayName = "Zoom Blur";
    CIAttributeFilterName = CIZoomBlur;
    CIAttributeReferenceDocumentation = "http://developer.apple.com/cgi-bin/apple_ref.cgi?apple_ref=//apple_ref/doc/filter/ci/CIZoomBlur";
    inputAmount =     {
        CIAttributeClass = NSNumber;
        CIAttributeDefault = 20;
        CIAttributeDescription = "The zoom-in amount. Larger values result in more zooming in.";
        CIAttributeDisplayName = Amount;
        CIAttributeIdentity = 0;
        CIAttributeMin = 0;
        CIAttributeSliderMax = 200;
        CIAttributeSliderMin = 0;
        CIAttributeType = CIAttributeTypeDistance;
        CIUIParameterSet = CIUISetBasic;
    };
    inputCenter =     {
        CIAttributeClass = CIVector;
        CIAttributeDefault = "[150 150]";
        CIAttributeDescription = "The x and y position to use as the center of the effect.";
        CIAttributeDisplayName = Center;
        CIAttributeType = CIAttributeTypePosition;
        CIUIParameterSet = CIUISetBasic;
    };
    inputImage =     {
        CIAttributeClass = CIImage;
        CIAttributeDescription = "The image to use as an input image. For filters that also use a background image, this is the foreground image.";
        CIAttributeDisplayName = Image;
        CIUIParameterSet = CIUISetBasic;
    };
    outputImage =     {
        CIAttributeClass = CIImage;
    };
}

Most of the time, though, you'll probably just use the docs.

不过，大多数情况下，您可能只会使用docs。

Answer 3

回答by mohacs

I found the list of names in CIFilter class, core image filters. here is the link names in CIFilterand the list of the filters.

我在 CIFilter 类中找到了名称列表，核心图像过滤器。这是CIFilter 中的链接名称和过滤器列表。

Filters

过滤器

CICategoryBlur
CIBoxBlur
CIDiscBlur
CIGaussianBlur
CIMaskedVariableBlur
CIMedianFilter
CIMotionBlur
CINoiseReduction

CICategoryColorAdjustment
CIColorClamp
CIColorControls
CIColorMatrix
CIColorPolynomial
CIExposureAdjust
CIGammaAdjust
CIHueAdjust
CILinearToSRGBToneCurve
CISRGBToneCurveToLinear
CITemperatureAndTint
CIToneCurve
CIVibrance
CIWhitePointAdjust

CICategoryColorEffect
CIColorCrossPolynomial
CIColorCube
CIColorCubeWithColorSpace
CIColorInvert
CIColorMap
CIColorMonochrome
CIColorPosterize
CIFalseColor
CIMaskToAlpha
CIMaximumComponent
CIMinimumComponent
CIPhotoEffectChrome
CIPhotoEffectFade
CIPhotoEffectInstant
CIPhotoEffectMono
CIPhotoEffectNtheitroad
CIPhotoEffectProcess
CIPhotoEffectTonal
CIPhotoEffectTransfer
CISepiaTone
CIVignette
CIVignetteEffect

CICategoryCompositeOperation
CIAdditionCompositing
CIColorBlendMode
CIColorBurnBlendMode
CIColorDodgeBlendMode
CIDarkenBlendMode
CIDifferenceBlendMode
CIDivideBlendMode
CIExclusionBlendMode
CIHardLightBlendMode
CIHueBlendMode
CILightenBlendMode
CILinearBurnBlendMode
CILinearDodgeBlendMode
CILuminosityBlendMode
CIMaximumCompositing
CIMinimumCompositing
CIMultiplyBlendMode
CIMultiplyCompositing
CIOverlayBlendMode
CIPinLightBlendMode
CISaturationBlendMode
CIScreenBlendMode
CISoftLightBlendMode
CISourceAtopCompositing
CISourceInCompositing
CISourceOutCompositing
CISourceOverCompositing
CISubtractBlendMode

CICategoryDistortionEffect
CIBumpDistortion
CIBumpDistortionLinear
CICircleSplashDistortion
CICircularWrap
CIDroste
CIDisplacementDistortion
CIGlassDistortion
CIGlassLozenge
CIHoleDistortion
CILightTunnel
CIPinchDistortion
CIStretchCrop
CITorusLensDistortion
CITwirlDistortion
CIVortexDistortion

CICategoryGenerator
CIAztecCodeGenerator
CICheckerboardGenerator
CICode128BarcodeGenerator
CIConstantColorGenerator
CILenticularHaloGenerator
CIPDF417BarcodeGenerator
CIQRCodeGenerator
CIRandomGenerator
CIStarShineGenerator
CIStripesGenerator
CISunbeamsGenerator

CICategoryGeometryAdjustment
CIAffineTransform
CICrop
CILanczosScaleTransform
CIPerspectiveCorrection
CIPerspectiveTransform
CIPerspectiveTransformWithExtent
CIStraightenFilter

CICategoryGradient
CIGaussianGradient
CILinearGradient
CIRadialGradient
CISmoothLinearGradient

CICategoryHalftoneEffect
CICircularScreen
CICMYKHalftone
CIDotScreen
CIHatchedScreen
CILineScreen

CICategoryReduction
CIAreaAverage
CIAreaHistogram
CIRowAverage
CIColumnAverage
CIHistogramDisplayFilter
CIAreaMaximum
CIAreaMinimum
CIAreaMaximumAlpha
CIAreaMinimumAlpha

CICategorySharpen
CISharpenLuminance
CIUnsharpMask

CICategoryStylize
CIBlendWithAlphaMask
CIBlendWithMask
CIBloom
CIComicEffect
CIConvolution3X3
CIConvolution5X5
CIConvolution7X7
CIConvolution9Horizontal
CIConvolution9Vertical
CICrystallize
CIDepthOfField
CIEdges
CIEdgeWork
CIGloom
CIHeightFieldFromMask
CIHexagonalPixellate
CIHighlightShadowAdjust
CILineOverlay
CIPixellate
CIPointillize
CIShadedMaterial
CISpotColor
CISpotLight

CICategoryTileEffect
CIAffineClamp
CIAffineTile
CIEightfoldReflectedTile
CIFourfoldReflectedTile
CIFourfoldRotatedTile
CIFourfoldTranslatedTile
CIGlideReflectedTile
CIKaleidoscope
CIOpTile
CIParallelogramTile
CIPerspectiveTile
CISixfoldReflectedTile
CISixfoldRotatedTile
CITriangleKaleidoscope
CITriangleTile
CITwelvefoldReflectedTile

CICategoryTileEffect
CIAffineClamp
CIAffineTile
CIEightfoldReflectedTile
CIFourfoldReflectedTile
CIFourfoldRotatedTile
CIFourfoldTranslatedTile
CIGlideReflectedTile
CIKaleidoscope
CIOpTile
CIParallelogramTile
CIPerspectiveTile
CISixfoldReflectedTile
CIEightfoldReflectedTile
CIFourfoldReflectedTile
CIFourfoldRotatedTile
CIFourfoldTranslatedTile

CICategoryTransition
CIAccordionFoldTransition
CIBarsSwipeTransition
CICopyMachineTransition
CIDisintegrateWithMaskTransition
CIDissolveTransition
CIFlashTransition
CIModTransition
CIPageCurlTransition
CIPageCurlWithShadowTransition
CIRippleTransition
CISwipeTransition

Answer 4

回答by Omkar

May be you can try following method of CIFilter class

也许您可以尝试以下 CIFilter 类的方法

+ (NSArray *)filterNamesInCategory:(NSString *)category

Answer 5

回答by CaOs433

In Swift (4.2, at the time of writing this), you can use this code to get all filter names:

在 Swift（4.2，在撰写本文时）中，您可以使用此代码获取所有过滤器名称：

For filters in a specified category:

对于指定类别中的过滤器：

CIFilter.filterNames(inCategory: "Name_of_the_category")

For filters in specified categories:

对于指定类别的过滤器：

CIFilter.filterNames(inCategories: ["Name_of_the_category_1", "Name_of_the_category_2"])

For filters in all categories, just pass nil either in inCategory or inCategories:

对于所有类别的过滤器，只需在 inCategory 或 inCategories 中传递 nil：

CIFilter.filterNames(inCategory: nil)

or

或者

CIFilter.filterNames(inCategories: nil)

All the functions above returns an Arrayof the filter names in Stringvalues:

上面的所有函数都返回值Array中的过滤器名称String：

[ "CIAccordionFoldTransition", "CIAdditionCompositing", "CIAffineClamp", "CIAffineTile", "CIAffineTransform", "CIAreaAverage", "CIAreaHistogram"... ]

Answer 6

回答by Rishi

NSLog(@"Distortion: %@", [CIFilter filterNamesInCategory:kCICategoryDistortionEffect]);
NSLog(@"Blurs: %@", [CIFilter filterNamesInCategory:kCICategoryBlur]);
NSLog(@"Color effects: %@", [CIFilter filterNamesInCategory:kCICategoryColorEffect]);
NSLog(@"Color adjustment: %@", [CIFilter filterNamesInCategory:kCICategoryColorAdjustment]);
NSLog(@"Built-in effects: %@", [CIFilter filterNamesInCategory:kCICategoryBuiltIn]);

macos 如何获取 CIFilter 类中的过滤器名称列表？

提问by Jobin Jose

回答by Justin Boo

回答by Rob Keniger

回答by mohacs

回答by Omkar

回答by CaOs433

回答by Rishi

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macos 如何获取 CIFilter 类中的过滤器名称列表？

提问by Jobin Jose

回答by Justin Boo

回答by Rob Keniger

回答by mohacs

回答by Omkar

回答by CaOs433

回答by Rishi

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