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Add completed the inverse RGB filter

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Lev
2021-08-01 20:42:01 -05:00
parent 10caf499bb
commit ab6d329281
6 changed files with 15998 additions and 0 deletions
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CM2030 Graphics Programming/Week 15/1. Invert filter/assets/seaNettles.jpg Normal file
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CM2030 Graphics Programming/Week 15/1. Invert filter/index.html Normal file
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<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>randomDot</title>
<script src="libraries/p5.min.js" type="text/javascript"></script>
<script src="libraries/p5.dom.js" type="text/javascript"></script>
<script src="libraries/p5.sound.js" type="text/javascript"></script>
<script src="sketch.js" type="text/javascript"></script>
<style> body {padding: 0; margin: 0;} canvas {vertical-align: top;} </style>
</head>
<body>
</body>
</html>

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CM2030 Graphics Programming/Week 15/1. Invert filter/libraries/p5.dom.js Normal file
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CM2030 Graphics Programming/Week 15/1. Invert filter/libraries/p5.min.js vendored Normal file
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CM2030 Graphics Programming/Week 15/1. Invert filter/libraries/p5.sound.js Normal file
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CM2030 Graphics Programming/Week 15/1. Invert filter/sketch.js Normal file
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let imgIn;
let imgOut;
function preload()
{
imgIn = loadImage("assets/seaNettles.jpg");
}
function setup() {
createCanvas(imgIn.width * 2, imgIn.height);
pixelDensity(1);
}
function draw()
{
background(255, 0, 255);
image(imgIn, 0, 0);
image(invertFilter(imgIn), imgIn.width, 0);
noLoop();
}
function invertFilter(img) {
imgOut = createImage(img.width, img.height);
imgOut.loadPixels();
img.loadPixels();
for(let y=0; y<img.height; y++)
{
for(let x=0; x<img.width; x++)
{
let index = (img.width * y + x) * 4;
imgOut.pixels[index + 0] = 255 - img.pixels[index + 0]
imgOut.pixels[index + 1] = 255 - img.pixels[index + 1]
imgOut.pixels[index + 2] = 255 - img.pixels[index + 2]
imgOut.pixels[index + 3] = 255;
}
}
imgOut.updatePixels();
return imgOut;
}