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Comment obtenir la liste des noms de filtres dans la classe CIFilter?

J'utilise le code suivant pour le réglage de l'exposition et son fonctionnement. J'ai besoin des noms de filtres pour accentuer, réduire le bruit, les hautes lumières, la température de couleur, les ombres, le flou, etc.

[CIFilter filterWithName: @"CIExposureAdjust"
                      keysAndValues: @"inputImage", [_imageView image], nil];
macoscocoa
19
Jobin Jose

J'écrivais à votre post précédent lien vers tous les filtres. Je vais répéter: lien vers tous les filtres . 

Et par exemple, vous avez besoin d'un effet de flou. Le flou est une catégorie et comporte 7 filtres: 

  • CIBoxBlur
  • CIDiscBlur
  • CIGaussianBlur
  • CIMedianFilter
  • CIMotionBlur
  • CINoiseRéduction
  • CIZoomBlur.

Et etc..

25
Justin Boo

Il vous suffit de demander à CIFilter les noms de filtres. Vous pouvez ensuite demander à chaque filtre sa attributes, qui renvoie un dictionnaire décrivant chaque paramètre d'entrée et de sortie accepté par le filtre.

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

Par exemple, ceci est la sortie du code ci-dessus pour le filtre CIZoomBlur:

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;
    };
}

La plupart du temps, cependant, vous utiliserez probablement simplement la documentation .

17
Rob Keniger

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

Filters

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
CIPhotoEffectNoir
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

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

14
mohacs

Peut-être que vous pouvez essayer la méthode suivante de la classe CIFilter

+ (NSArray *)filterNamesInCategory:(NSString *)category
2
Omkar
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]);
0
Rishi