Cameron Lowell Palmer palmerc
palmerc
/ HDF5 Android Compilation Script
Created
February 5, 2017 12:09
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| #!/bin/bash | |
| STANDLONE_PREFIX=/Users/palmerc/Development/android-ndk/standalone-r13b | |
| HDF5_PARENT_DIR=${HOME}/Development/HDF5-compile | |
| HDF5_INSTALL_DIR=${HDF5_PARENT_DIR}/HDF5 | |
| EMULATOR_NAME_ARM="nexus19-arm" | |
| EMULATOR_NAME_X86="nexus19-x86" | |
| function find_device { | |
| local UUID=$1 |
palmerc
/ HDF5 Android How-to
Created
February 3, 2017 08:36
Instructions on getting through HDF compilation for Android
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| How to build HDF5 for Android | |
| References: | |
| ----------- | |
| [1] http://developer.android.com/tools/sdk/ndk/index.html | |
| [2] http://developer.android.com/sdk/index.html |
palmerc
/ RGBAImage.swift
Created
February 2, 2016 11:19
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| import UIKit | |
| public struct Pixel { | |
| public var value: UInt32 | |
| public var red: UInt8 { | |
| get { | |
| return UInt8(value & 0xFF) | |
| } | |
| set { |
palmerc
/ imageRoundtrip.swift
Last active
April 15, 2024 03:35
Roundtrip a UIImage to its raw pixel values and back to an image again
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| import UIKit | |
| import CoreGraphics | |
| func imageFromPixelValues(pixelValues: [UInt8]?, width: Int, height: Int) -> CGImage? | |
| { | |
| var imageRef: CGImage? | |
| if pixelValues != nil { | |
| let imageDataPointer = UnsafeMutablePointer<UInt8>(pixelValues!) | |
| let colorSpaceRef = CGColorSpaceCreateDeviceGray() |
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| //: Playground - noun: a place where people can play | |
| import Darwin | |
| import Foundation | |
| let clockFaces: String = "🕛🕐🕑🕒🕓🕔🕕🕖🕗🕘🕙🕚" | |
| let sortedClockFaces = Array(clockFaces.characters).sort() | |
| let threeOClock = sortedClockFaces[2] | |
| let aceOfSpades = "🂡" |
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <script type="text/javascript"> | |
| var sock = null; | |
| var ellog = null; | |
| window.onload = function() { | |
| var wsuri; |
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| function [ Hough, theta_range, rho_range ] = naiveHough(I) | |
| %NAIVEHOUGH Peforms the Hough transform in a straightforward way. | |
| % | |
| [rows, cols] = size(I); | |
| theta_maximum = 90; | |
| rho_maximum = floor(sqrt(rows^2 + cols^2)) - 1; | |
| theta_range = -theta_maximum:theta_maximum - 1; | |
| rho_range = -rho_maximum:rho_maximum; | |
palmerc
/ convert.cpp
Last active
August 29, 2015 14:27
http://stackoverflow.com/questions/31864723/clipping-one-object-intersecting-with-another/31962627#31962627
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| Eigen::Vector4f planeEq; | |
| Eigen::Matrix4f modelViewMatrix; | |
| Eigen::Vector4f nPrime = modelViewMatrix.inverse() * Eigen::Vector4f(planeEq(0), planeEq(1), planeEq(2), 1.f); | |
| nPrime.normalize(); | |
| Eigen::Vector3f clipPlaneNormalObjectSpace = Eigen::Vector3f(nPrime(0)/nPrime(3), nPrime(1)/nPrime(3), nPrime(2)/nPrime(3)); |
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| #import <Foundation/Foundation.h> | |
| #define randomNumber() (arc4random() % ((unsigned)1000000 + 1)) | |
| @interface MainHelper : NSObject | |
| + (NSArray *)largeArrayCreate; | |
| @end | |
| @implementation MainHelper | |
| + (NSArray *)largeArrayCreate |
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| - (UIImage *)boxblurImage:(UIImage *)image boxSize:(int)boxSize | |
| { | |
| CGImageRef originalImageRef = image.CGImage; | |
| CGColorSpaceRef originalColorSpace = CGColorSpaceRetain(CGImageGetColorSpace(originalImageRef)); | |
| if (_pixelBuffer == NULL) { | |
| _pixelBuffer = malloc(CGImageGetBytesPerRow(originalImageRef) * CGImageGetHeight(originalImageRef)); | |
| } | |
| vImage_CGImageFormat inputImageFormat = |