Using. img.get to retrieve color values

p5.js Coding Questions
1

I am using the following code

let c = img.get(xPos,yPos);

to sample a color from a pixel of an image and it works brilliantly as I can then fill or stroke with the variable (c)

My question is how do I then make (c) use the transparency value, too? As it stands I think it samples the RGB values … but i would like to add the 4th transparency value and be able to make it random

Any suggestions would be greatly appreciated

Glen

2

Hello,

Start here and follow the trail of breadcrumbs (links):

https://p5js.org/reference/#/p5/set

:)

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3

Perfect, thank you … after trundling through the rabbit hole I eventually came up with the following solution

let c = img.get(xPos,yPos);
transcolor = color(c);
noStroke();
transcolor.setAlpha(50);
fill(transcolor);

Thank you for saving a heap of time

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