262 lines
9.6 KiB
HTML
262 lines
9.6 KiB
HTML
<!doctype html>
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<html lang="en">
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<head>
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<script>
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const setTheme = (theme) => {
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theme ??= localStorage.theme || "system";
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document.getElementById("themeLight").checked = theme === "light";
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document.getElementById("themeDark").checked = theme === "dark";
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localStorage.theme = theme;
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};
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document.addEventListener("DOMContentLoaded", function () {
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setTheme();
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});
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</script>
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<meta charset="UTF-8" />
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<meta name="viewport" content="width=device-width,initial-scale=1" />
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<link rel="shortcut icon" href="../assets/image/favicon.png" />
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<link
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rel="stylesheet"
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type="text/css"
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href="../assets/style/styleguide.css"
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/>
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<title>Image Generator</title>
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</head>
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<body style="height: 100vh">
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<header>
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<a href="/" id="backToWiki">
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<img
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src="../assets/image/logo_eventname_glow.svg"
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class="header-image dark-only"
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alt="Logo of Easterhegg 2025. In the style of a neon sign:
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The text 'Unhandled Eggception Easterhegg 2025' with a line art of a hare and an egg.
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The egg shell and the word 'Eggception' are glowing in a light blue, everything else in a bright pink."
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/>
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<img
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src="../assets/image/logo_eventname_glow_off.svg"
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class="header-image light-only"
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alt="Logo of Easterhegg 2025. In the style of a unpowered neon sign:
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The text 'Unhandled Eggception Easterhegg 2025' with a line art of a hare and an egg.
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The egg shell and the word 'Eggception' are dimly glowing in a dark blue, everything else in a dark pink."
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/>
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</a>
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</header>
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<div>
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<nav>
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<button aria-label="Open Navigation">
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<i data-icon="menu_small"></i>
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</button>
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<ul>
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<li class="link-back">
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<a href="/"><i data-icon="arrow_left"></i>Back to Wiki</a>
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</li>
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<li>
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<a href="../"><i data-icon="home"></i>Overview</a>
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</li>
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<li>
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<a href="../colors"><i data-icon="pen"></i>Colors</a>
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</li>
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<li>
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<a href="../typography"><i data-icon="font"></i>Typography</a>
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</li>
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<li>
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<a href="../iconography"><i data-icon="info"></i>Iconography</a>
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</li>
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<li>
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<a href="../logo"><i data-icon="hare_head"></i>Logo</a>
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</li>
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<li>
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<a href="../glow"><i data-icon="lightbulb"></i>Glow</a>
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</li>
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<li>
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<a href="../demopage"><i data-icon="code"></i>Demopage</a>
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</li>
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<li class="active">
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<a href=""><i data-icon="settings"></i>Image Generator</a>
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</li>
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<li id="themeToggleDark" class="themeToggle">
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<input
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id="themeDark"
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type="checkbox"
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aria-label="Switch between dark and light mode"
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/>
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<label for="themeDark">
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<i data-icon="lightbulb"></i>
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</label>
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</li>
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<li id="themeToggleLight" class="themeToggle">
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<input
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id="themeLight"
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type="checkbox"
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aria-label="Switch between dark and light mode"
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/>
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<label for="themeLight">
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<i data-icon="lightbulb"></i>
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</label>
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</li>
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</ul>
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</nav>
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<main>
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<h1>Image Generator</h1>
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<p>
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We wanted images to (optionally) have a glitchy, distorted appearance.
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To achieve this, we apply two effects to an image. Firstly, bright
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vertical edges in an image are highlighted by adding a parallel line
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in our primary color to their left and in our secondary color to their
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right hand side. Secondly, the image gets distorted by offsetting
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different parts of the image horizontally, seemingly by random
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amounts, but it is actually somewhat osscilating.
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</p>
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<p>
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This page utilizes a small bit of Javascript to add an SVG filter to
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an image of your choice. The resulting image will then be previewed
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further below and can be downloaded using a button at the end of the
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page. Not all browsers' canvas implementations generate the same
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outcome, especially firefox tends to create wrong results, so we
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recommend using a chromium based browser for creating these exports.
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</p>
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<div class="generator">
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<div>
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<input id="file_input" type="file" name="image" accept="image/*" />
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</div>
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<img id="source_img" src="" />
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<i data-icon="arrow_down"></i>
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<img id="result_img" src="" />
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<div style="display: none">
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<svg width="600" height="400" xmlns="http://www.w3.org/2000/svg">
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<filter
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id="filter0"
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color-interpolation-filters="linearRGB"
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filterUnits="objectBoundingBox"
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primitiveUnits="objectBoundingBox"
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>
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<feFlood x="0" width="0.001" result="floodLeftColumn" />
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<feComposite
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in="SourceGraphic"
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in2="floodLeftColumn"
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operator="in"
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result="sourceLeftColumn"
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/>
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<feMorphology
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x="-0.5"
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in="sourceLeftColumn"
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operator="dilate"
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radius="0.5 0.000001"
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result="sourceLeftColumnWide"
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/>
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<feFlood x="0.999" width="0.001" result="floodRightColumn" />
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<feComposite
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in="SourceGraphic"
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in2="floodRightColumn"
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operator="in"
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result="sourceRightColumn"
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/>
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<feMorphology
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x="0.5"
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in="sourceRightColumn"
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operator="dilate"
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radius="0.5 0.000001"
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result="sourceRightColumnWide"
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/>
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<feMerge result="expandedSource">
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<feMergeNode in="sourceLeftColumnWide" />
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<feMergeNode in="sourceRightColumnWide" />
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<feMergeNode in="SourceGraphic" />
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</feMerge>
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<feColorMatrix
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in="expandedSource"
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type="saturate"
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values="0"
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result="bw"
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/>
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<feColorMatrix in="bw" type="luminanceToAlpha" result="ltoa" />
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<feComponentTransfer in="ltoa" result="ltoa_inverse">
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<feFuncA type="table" tableValues="0 1" />
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</feComponentTransfer>
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<feConvolveMatrix
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in="ltoa_inverse"
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result="pink_edges"
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kernelMatrix="0 0 0 -8 0 8 0 0 0"
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/>
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<feComponentTransfer in="pink_edges" result="pink">
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<feFuncR type="table" tableValues="0.7765 0" />
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<feFuncG type="table" tableValues="0.1451 0" />
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<feFuncB type="table" tableValues="0.4902 0" />
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</feComponentTransfer>
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<feOffset in="pink" result="pink_shift0" dx="-0.0015" />
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<feOffset in="pink" result="pink_shift1" dx="-0.0030" />
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<feOffset in="pink" result="pink_shift2" dx="-0.0045" />
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<feConvolveMatrix
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in="ltoa_inverse"
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result="cyan_edges"
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kernelMatrix="0 0 0 4 0 -4 0 0 0"
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/>
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<feComponentTransfer in="cyan_edges" result="cyan">
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<feFuncR type="table" tableValues="0.2941 0" />
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<feFuncG type="table" tableValues="0.6784 0" />
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<feFuncB type="table" tableValues="0.8471 0" />
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</feComponentTransfer>
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<feOffset in="cyan" result="cyan_shift0" dx="0.0015" />
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<feOffset in="cyan" result="cyan_shift1" dx="0.0030" />
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<feOffset in="cyan" result="cyan_shift2" dx="0.0045" />
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<feMerge result="pink_cyan_shift">
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<feMergeNode in="expandedSource" />
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<feMergeNode in="pink_shift0" />
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<feMergeNode in="pink_shift1" />
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<feMergeNode in="cyan_shift0" />
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<feMergeNode in="cyan_shift1" />
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</feMerge>
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<feTurbulence
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type="fractalNoise"
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baseFrequency="0 0.05"
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numOctaves="2"
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result="noise"
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/>
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<feDisplacementMap
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in="pink_cyan_shift"
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in2="noise"
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result="distorted_raw"
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scale="0.04"
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/>
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<feComponentTransfer
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in="distorted_raw"
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result="SourceDistorted"
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>
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<feFuncA type="linear" slope="0.9" />
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</feComponentTransfer>
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<feMerge>
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<feMergeNode in="expandedSource" />
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<feMergeNode in="distorted_raw" />
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</feMerge>
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</filter>
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<g filter="url(#filter0)">
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<image href="" width="100%" height="100%" />
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</g>
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</svg>
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</div>
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<button id="download" disabled>Download Result</button>
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</div>
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</main>
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</div>
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<script src="../assets/script/generator.js" type="text/javascript"></script>
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<script
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src="../assets/script/styleguide.js"
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type="text/javascript"
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></script>
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</body>
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</html>
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