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// RGB to CMYK conversion
void rgb2cmyk(cv::Mat& img, std::vector<cv::Mat>& cmyk) {
    // Allocate cmyk to store 4 componets
    for (int i = 0; i < 4; i++) {
        cmyk.push_back(cv::Mat(img.size(), CV_8UC1));
    }

    // Get rgb
    std::vector<cv::Mat> rgb;
    cv::split(img, rgb);

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// Example of cv::split
cv::Mat img = cv::imread("C:\\color wheel.jpg");
std::vector<cv::Mat> rgb;
cv::split(img, rgb);

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num = '123456789';
str = num2str(num);
val = str - '0';        % val = [1,2,3,4,5,6,7,8,9]

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Base 16 Ocean

.base00 { color: #2b303b; } background
.base01 { color: #343d46; }
.base02 { color: #4f5b66; } selection
.base03 { color: #65737e; } comment, invisible
.base04 { color: #a7adba; } cursor
.base05 { color: #c0c5ce; } plain text
.base06 { color: #dfe1e8; } constants

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Atom Beautify - Debugging information

The following debugging information was generated by Atom Beautify on Thu Mar 10 2016 12:57:10 GMT+0800 (CST).

---

Table Of Contents

• Versions
• Original file to be beautified
• Original File Contents

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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
	<key>DVTConsoleDebuggerInputTextColor</key>
	<string>0 0 0 1</string>
	<key>DVTConsoleDebuggerInputTextFont</key>
	<string>Menlo-Bold - 11.0</string>
	<key>DVTConsoleDebuggerOutputTextColor</key>
	<string>0 0 0 1</string>

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Mac Terminal Cheatsheet

Moving cursor

Command	Description
control + a	Go to the start of the line
control + e	Go to the end of the line
control + b	Move cursor one character backward
control + f	Move cursor one character forward

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Atom Shortcut Cheatsheet

Moving

Command	Description
control + a	Go to the start of the line
control + e	Go to the end of the line
control + b	Move cursor one character backward
control + f	Move cursor one character forward

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Free up disk space from Xcode

These items can be deleted safely.

iOS Device Support

In Finder: ~/Library/Developer/Xcode/iOS DeviceSupport/

Derived Data

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var values = {
    friction: 0.8,
    timeStep: 0.01,
    amount: 15,
    mass: 2,
    count: 0
};
values.invMass = 1 / values.mass;
var path, springs;
var size = view.size * [1.2, 1];