andre/UoL
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Add completed threshhold image filter

Browse Source
This commit is contained in:
Lev
2021-08-01 21:01:33 -05:00
parent 717b61e930
commit 20a38f4d85
6 changed files with 16014 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

BIN
CM2030 Graphics Programming/Week 15/3 Threshhold filter/assets/seaNettles.jpg Normal file
View File

Binary file not shown.
Side by Side

After

Width:  |  Height:  |  Size: 45 KiB

17
CM2030 Graphics Programming/Week 15/3 Threshhold filter/index.html Normal file
View File

@ -0,0 +1,17 @@
<!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>

3031
CM2030 Graphics Programming/Week 15/3 Threshhold filter/libraries/p5.dom.js Normal file
View File

File diff suppressed because it is too large Load Diff

36
CM2030 Graphics Programming/Week 15/3 Threshhold filter/libraries/p5.min.js vendored Normal file
View File

File diff suppressed because one or more lines are too long

12873
CM2030 Graphics Programming/Week 15/3 Threshhold filter/libraries/p5.sound.js Normal file
View File

File diff suppressed because it is too large Load Diff

57
CM2030 Graphics Programming/Week 15/3 Threshhold filter/sketch.js Normal file
View File

@ -0,0 +1,57 @@
let imgIn;
let imgOut;
let clicked = false;
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(grayScaleFilter(imgIn), imgIn.width, 0);
//noLoop();
}
function grayScaleFilter(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;
let r = img.pixels[index + 0];
let g = img.pixels[index + 1];
let b = img.pixels[index + 2];
let gray;
if (clicked == true)
gray = r * 0.299 + g * 0.587 + b * 0.114;
else
gray = (r + g + b) / 3;
let threshold = constrain(map(mouseX, 0, width, 0, 255), 0, 255);
if(gray>threshold)
gray = 255;
else
gray = 0;
imgOut.pixels[index + 0] = gray;
imgOut.pixels[index + 1] = gray;
imgOut.pixels[index + 2] = gray;
imgOut.pixels[index + 3] = 255;
}
}
imgOut.updatePixels();
return imgOut;
}
function mouseClicked() {
clicked = !clicked;
}