MaTriXy

final class Completion<R> {
	
	private let closure: (R) -> Void
	private var cancelled = false

	/// `closure` is called upon completion, if not cancelled.
	init(closure: (R) -> Void) {
		self.closure = closure
	}
	

MaTriXy

import Accelerate.vImage

func getImageBuffer(from pixelBuffer: CVPixelBuffer) -> vImage_Buffer? {
    var buffer = vImage_Buffer()
    let bitmapInfo = CGBitmapInfo(rawValue: CGBitmapInfo.byteOrder32Little.rawValue | CGImageAlphaInfo.first.rawValue)
    var cgFormat = vImage_CGImageFormat(bitsPerComponent: 8,
                                        bitsPerPixel: 32,
                                        colorSpace: nil,
                                        bitmapInfo: bitmapInfo,
                                        version: 0,

MaTriXy

# in a terminal
# python -m pip install --user opencv-contrib-python numpy scipy matplotlib ipython jupyter pandas sympy nose


import cv2
import pandas as pd
import numpy as np
import imutils
from scipy.spatial import distance as dist
from imutils import perspective

MaTriXy

//
//  Created by はるふ on 2017/12/11.
//  Copyright © 2017年 ha1f. All rights reserved.
//

import Foundation
import CoreImage
import AVFoundation

extension CIFilter {

MaTriXy

import UIKit
import PlaygroundSupport

let view = UIView(frame: CGRect(x: 0, y: 0, width: 375, height: 647))
view.backgroundColor = UIColor.white

let shadowView = UIView(frame: CGRect(x:50, y: 50, width:250, height:250))
view.addSubview(shadowView)
let someView = UIView(frame: CGRect(x:50, y: 50, width:250, height:250))
someView.backgroundColor = UIColor.white

MaTriXy

import com.google.android.gms.common.GoogleApiAvailability
import com.google.android.gms.tasks.Task
import splitties.init.appCtx
import kotlin.coroutines.experimental.suspendCoroutine

val googleApiAvailability = GoogleApiAvailability.getInstance()!!
inline val playServicesAvailability get() = googleApiAvailability.isGooglePlayServicesAvailable(appCtx)

@JvmName("awaitVoid")
suspend fun Task<Void>.await() = suspendCoroutine<Unit> { continuation ->

MaTriXy

import com.google.android.gms.common.GoogleApiAvailability
import com.google.android.gms.tasks.Task
import splitties.init.appCtx
import kotlin.coroutines.experimental.suspendCoroutine

val googleApiAvailability = GoogleApiAvailability.getInstance()!!
inline val playServicesAvailability get() = googleApiAvailability.isGooglePlayServicesAvailable(appCtx)

@JvmName("awaitVoid")
suspend fun Task<Void>.await() = suspendCoroutine<Unit> { continuation ->

MaTriXy

class RgbConversion(val rs: RenderScript, private val feedSize: Size, private val hasRotate: Boolean = true) {
    private var mInputAllocation: Allocation? = null
    private var mOutputAllocation: Allocation? = null
    private var mRotatedAllocation: Allocation? = null
    private val yuvToRgb = ScriptIntrinsicYuvToRGB.create(rs, Element.U8_4(rs))
    private val rotator = ScriptC_rotator(rs)
    var bufferCallback: ((ByteBuffer) -> Unit)? = null

    val inputSurface: Surface
        get() = mInputAllocation!!.surface

MaTriXy

//
//  ViewController.swift
//  CameraFilter
//

import UIKit
import AVFoundation

class ViewController: UIViewController, AVCaptureVideoDataOutputSampleBufferDelegate {
    

MaTriXy

Amazon changed the install in Linux 2. One no-longer using 'yum' See: https://aws.amazon.com/amazon-linux-2/release-notes/

Docker CE Install

sudo amazon-linux-extras install docker
sudo service docker start
sudo usermod -a -G docker ec2-user