pczuchaj

// Image downsampling technique provides smaller image buffer allocations which leads to memory optimization

extension UIImageView {
    func downsampleImage(from imageUrl: URL) -> UIImage {
        let imageSourceOptions = [kCGImageSourceShouldCache: false] as CFDictionary
        guard let imageSource = CGImageSourceCreateWithURL(imageUrl as CFURL, imageSourceOptions) else { return UIImage() }
        let maxDimensionInPixels = max(self.bounds.size.width, self.bounds.size.height) * self.traitCollection.displayScale
        let downsampleOptions =
            [kCGImageSourceCreateThumbnailFromImageAlways: true,

omarojo

var thePixelBuffer : CVPixelBuffer?

let testImage : UIImage = UIImage.init(named: "twdEnds.png")!
self.thePixelBuffer = self.pixelBufferFromImage(image: testImage)




func pixelBufferFromImage(image: UIImage) -> CVPixelBuffer {
        

codelynx

//
//	MTLTexture+Z.swift
//	ZKit
//
//	The MIT License (MIT)
//
//	Copyright (c) 2016 Electricwoods LLC, Kaz Yoshikawa.
//
//	Permission is hereby granted, free of charge, to any person obtaining a copy 
//	of this software and associated documentation files (the "Software"), to deal 

darcwader

extension UIImage {
    func resizeVI(size:CGSize) -> UIImage? {
        let cgImage = self.CGImage!
            
            var format = vImage_CGImageFormat(bitsPerComponent: 8, bitsPerPixel: 32, colorSpace: nil,
                                              bitmapInfo: CGBitmapInfo(rawValue: CGImageAlphaInfo.First.rawValue),
                                              version: 0, decode: nil, renderingIntent: CGColorRenderingIntent.RenderingIntentDefault)
            var sourceBuffer = vImage_Buffer()
            defer {
                sourceBuffer.data.dealloc(Int(sourceBuffer.height) * Int(sourceBuffer.height) * 4)

schickling

extension UIImage {

    func fixedOrientation() -> UIImage {
        
        if imageOrientation == UIImageOrientation.Up {
            return self
        }
        
        var transform: CGAffineTransform = CGAffineTransformIdentity
        

kristopherjohnson

struct LowPassFilterSignal {
    /// Current signal value
    var value: Double
    
    /// A scaling factor in the range 0.0..<1.0 that determines
    /// how resistant the value is to change
    let filterFactor: Double

    /// Update the value, using filterFactor to attenuate changes
    mutating func update(newValue: Double) {

MartinJNash

class Person {
    class func classString() -> String {
        return NSStringFromClass(self)
    }
}


Person.classString() // "_TtC11lldb_expr_06Person"

erichurst

ZIP,LAT,LNG
00601,18.180555, -66.749961
00602,18.361945, -67.175597
00603,18.455183, -67.119887
00606,18.158345, -66.932911
00610,18.295366, -67.125135
00612,18.402253, -66.711397
00616,18.420412, -66.671979
00617,18.445147, -66.559696