Build a Color Extraction Tool with JavaScript

In this video I explain how to use the HTML Canvas element to extract colour information from individual pixels as well as calculating the average colour over a range. Tools like this can be used when trying to generate a colour scheme from an image.

Playlist of videos about HTML5 Canvas:

[Stoney_Eagle]

I was looking for a way to get the average of the whole image and found a "just copy me" video 😅 now that one makes sense by your explanation.
Thanks!

[NiIog]

Thanks! Now I can use this to identify colors in an image for a project!

[pesahson]

That's a cool looking little project!

[angladephil]

Great, thank you !!!
I would have declared the nums variable relative to the inset variable :
let nums =(inset+1)*(inset+1);

[BKofficer]

So the "shape" or "coverage area" that is calculating the average color, is actually just a plus-sign, so to speak, left, right, up, and down, from the central mouse pixel, and not a square around the central mouse pixel. Because it's not gathering the colors of the pixels diagonal to the central mouse pixel. The square is just something easier to see for the user. Hopefully if I'm wrong you'll correct me.

[WatcharaphanPongpan]

it is possible to have 3 on click events on 3 different locations of the image when those locations are fixed in place.

[Akhilashok]

Is it possible to implement this in react native because some elements are like web based so its not work in android how to achieve this in react native?

[SnehaishChakrabortyLive]

Why the array index is multiplied by 4 to get the rgb value?

[ZnR]

How to get the excraction automatically without click the color?