Apple Sample Code
Collection

Accelerate sample architecture

Source-backed, high-level architecture notes for Apple sample-code pages grouped in the Accelerate folder.

  • Catalog module label: Accelerate
  • Coverage: 31 / 31 sample pages documented
  • Source policy: archive hashes and extracted-tree references are verified locally before analysis

Samples

Sample Platforms High-level architecture Documented patterns
Adding a bokeh effect to images macOS A Swift sample with the source-visible chain vImageMorphologyApp → ContentView → MorphologyTransformer → Accelerate APIs. SwiftUI environment injection, Publisher-backed observable state
Adjusting saturation and applying tone mapping macOS A Swift sample with the source-visible chain YpCbCrAdjustmentApp → ContentView → Accelerate APIs. SwiftUI environment injection, Publisher-backed observable state
Adjusting the brightness and contrast of an image macOS A Swift sample with the source-visible chain GammaCorrectionApp → ContentView → GammaCorrectionEngine → Accelerate APIs. SwiftUI environment injection, Publisher-backed observable state
Adjusting the hue of an image macOS A Swift sample with the source-visible chain HueAdjustmentApp → ContentView → Accelerate APIs. SwiftUI environment injection, Publisher-backed observable state
Applying biquadratic filters to a music loop macOS A Swift sample with the source-visible chain BiquadCoefficientsCalculatorApp → ContentView → FilterableMusicProvider → Accelerate APIs. Protocol-oriented abstraction, SwiftUI environment injection
Applying tone curve adjustments to images macOS A Swift sample with the source-visible chain vImage_PolynomialApp → ContentView → PolynomialTransformer → Accelerate APIs. SwiftUI environment injection, Binding-based state propagation, Publisher-backed observable state
Applying transformations to selected colors in an image macOS A Swift sample with the source-visible chain vImage_selective_desaturationApp → ContentView → ColorConverter → Accelerate APIs. SwiftUI environment injection, Publisher-backed observable state
Applying vImage operations to video sample buffers macOS A Swift sample with the source-visible chain VideoCaptureApp → ContentView → Accelerate APIs. Delegate or data-source callbacks, SwiftUI environment injection
Blurring an image macOS A Swift sample with the source-visible chain vImageConvolutionApp → ContentView → Accelerate APIs. SwiftUI environment injection, Publisher-backed observable state
Calculating the dominant colors in an image macOS A Swift sample with the source-visible chain AccelerateKMeansApp → ContentView → Accelerate APIs. SwiftUI environment injection, Publisher-backed observable state
Compressing an image using linear algebra macOS A Swift sample with the source-visible chain SVDImageCompressionApp → ContentView → Accelerate APIs. SwiftUI environment injection, Publisher-backed observable state
Compressing and decompressing files with stream compression macOS A Swift sample with the source-visible chain CompressionStreamingApp → ContentView → SwiftUI / Compression APIs. SwiftUI environment injection, Publisher-backed observable state
Converting color images to grayscale macOS A Swift sample with the source-visible chain GrayscaleConversionApp → ContentView → GrayscaleConverter → Accelerate APIs. SwiftUI environment injection, Publisher-backed observable state
Converting luminance and chrominance planes to an ARGB image macOS A Swift sample with the source-visible chain YUVtoRGBApp → ContentView → YUVtoRGBConverter → Accelerate APIs. Delegate or data-source callbacks, SwiftUI environment injection, Publisher-backed observable state
Creating an audio unit extension using the vDSP library macOS A C/Objective-C header, Objective-C++, Swift sample with the source-visible chain vDSP_audio_unitApp → ContentView → AudioUnitViewModel → SimplePlayEngine → SwiftUI / AudioToolbox APIs. Model-View-ViewModel, View-controller organization, Protocol-oriented abstraction, Builder, Publisher-backed observable state
Cropping to the subject in a chroma-keyed image macOS A Swift sample with the source-visible chain TrimTransparentPixelsApp → ContentView → ImageProvider → Accelerate APIs. SwiftUI environment injection
Equalizing audio with discrete cosine transforms (DCTs) macOS A Swift sample with the source-visible chain AudioEqualizationApp → ContentView → DrumLoopProvider → Accelerate APIs. Protocol-oriented abstraction, SwiftUI environment injection, Publisher-backed observable state
Finding the sharpest image in a sequence of captured images iOS, iPadOS, Mac Catalyst A Swift sample with the source-visible chain AccelerateBlurDetectionApp → BlurDetectorView → BlurDetectorResultModel → BlurDetectionItemRenderer → Accelerate APIs. Protocol-oriented abstraction, Delegate or data-source callbacks, SwiftUI environment injection, Publisher-backed observable state
Halftone descreening with 2D fast Fourier transform macOS A Swift sample with the source-visible chain HalftoneDescreenerApp → ContentView → Accelerate APIs. SwiftUI environment injection, Publisher-backed observable state
Improving the quality of quantized images with dithering macOS A Swift sample with the source-visible chain ImageDitherApp → ContentView → ImageDitherEngine → Accelerate APIs. SwiftUI environment injection
Integrating vImage pixel buffers into a Core Image workflow macOS A Swift sample with the source-visible chain ContrastStretchApp → ContentView → Accelerate APIs. SwiftUI environment injection, Publisher-backed observable state
Reducing artifacts with custom resampling filters macOS A Swift sample with the source-visible chain CustomResamplingApp → ContentView → CustomResamplingEngine → Accelerate APIs. SwiftUI environment injection
Rotating a cube by transforming its vertices macOS A Swift sample with the source-visible chain QuaternionDemonstrationApp → ContentView → SceneKit / SwiftUI APIs. SwiftUI environment injection, Publisher-backed observable state
Sharing texture data between the Model I/O framework and the vImage library macOS A Swift sample with the source-visible chain vimage_sky_compositorApp → ContentView → ImageProvider → Accelerate APIs. SwiftUI environment injection, Publisher-backed observable state
Signal extraction from noise iOS, iPadOS, Mac Catalyst A Swift sample with the source-visible chain SignalExtractionFromNoiseApp → ContentView → Accelerate APIs. SwiftUI environment injection, Publisher-backed observable state
Solving systems of linear equations with LAPACK macOS A Swift sample centered on main, with direct use of Accelerate. —
Specifying histograms with vImage macOS A Swift sample with the source-visible chain HistogramSpecificationApp → ContentView → Accelerate APIs. SwiftUI environment injection, Publisher-backed observable state
Supporting real-time ML inference on the CPU macOS A C/Objective-C header, Objective-C++, Python, Swift sample with the source-visible chain BNNSBitcrusherApp → ContentView → AudioUnitViewModel → SimplePlayEngine → SwiftUI / AudioToolbox APIs. Model-View-ViewModel, View-controller organization, Protocol-oriented abstraction, Builder, Publisher-backed observable state
Training a neural network to recognize digits macOS A Swift sample centered on Digits, with direct use of Accelerate. —
Using vImage pixel buffers to generate video effects macOS A Swift sample with the source-visible chain vImagePixelBuffer_VideoEffectsApp → ContentView → VideoEffectsEngine → Accelerate APIs. Delegate or data-source callbacks, SwiftUI environment injection, Publisher-backed observable state
Visualizing sound as an audio spectrogram macOS A Swift sample with the source-visible chain AudioSpectrogramApp → ContentView → Accelerate APIs. Delegate or data-source callbacks, SwiftUI environment injection, Publisher-backed observable state

Cross-sample signals

Recurring documented patterns

Pattern label Sample documents
SwiftUI environment injection 27
Publisher-backed observable state 24
Protocol-oriented abstraction 5
Delegate or data-source callbacks 5
Model-View-ViewModel 2
View-controller organization 2
Builder 2

Type-role naming evidence

Counts below are declaration-name suffixes, not inferred patterns.

Role suffix Distinct declarations across samples
View 35
App 29
Engine 6
Provider 6
Converter 4
Model 3
Transformer 2
Generator 2
Delegate 2
Builder 2
Controller 2
Manager 2
ViewModel 2
Renderer 1

Swift access-control evidence

These are declaration occurrences in scanned Swift source, including implicit internal declarations.

Access level Occurrences
implicit internal 1998
private 152
public 58
private(set) 6
fileprivate 3

References

Generated from the verified local catalog and completed Markdown documents.