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Image Color Detection App in JavaScript

Let's Discuss An App That Can Detect color pixels from images. We Will Discuss Some More Important Coding Logics We Can Use To Detect Colors.
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Introduction

Welcome to MalikCodex! We are a platform dedicated to sharing knowledge and resources for developers like you. Whether you are a beginner or an experienced programmer, MalikCodex supports your learning journey and provides you with a wide range of valuable resources.

Meet Owner

Hi, I’m Malik Faizan, the founder of MalikCodex. As a passionate developer with years of experience, I have worked with a multitude of programming languages and technologies

About Image Colors Detection App

Let's Discuss An App That Can Detect color pixels from images. We Will Discuss Some More Important Coding Logics We Can Use To Detect Colors From Any Image. Through This Blog Post, You Were Able to Learn advanced fundamentals of HTML Canvas.

HTML 5 Canvas Element

HTML 5 Canvas in HTML is Used In Many Cases Such as Drawing On Canvas Elements To Build Any Type Of Editor for Client-site Editing Apps. To Build This App We Use Canvas To Load images onto the Canvas. We Load Images And Furthur Perform Algorithm To Solve The Problem. Let us Put An Eye On the Furthur Logic

Algorithm Used To Detect Colors

To Perform an Algorithm to Detect Pixels Let's Continue With The Upper Paragraph in Which We Discuss About Canvas Element And Its Uses. In Our Case, We Use Canvas To Load images and to Read Image Pixels To further convert Them into RGBA Form RGBA Stands For (RED, GREEN, BLUE, and ALPHA) it is a color representation of colors in digital graphics.

Further Process

First We Get Canvas Data and Then Loop it Using For Loop To Read Pixels Data

In addition, the code employs conditional checks to ensure that duplicate colors are counted only once. For instance, if there are two instances of the same color, the code detects and records it only once in the object, preventing redundant counting of identical colors.

Know We Furthur Perform an Algorithm That Sort The Colors Representation in Descending Order For this We Use The Keys from the object using the Object.keys() function and then sort the object keys by using the sort function.

Now we use the slice function in javascript to get the first 5 from the sorted array to print first as a background color and other as a pixel reading format, for example, #124ed

Steps To Follow

1. Writing HTML Part
2. Creating Beautiful Layout Using CSS
3. Integrating JavaScript
4. Loading Images on Canvas
5. Reading Image Data in Pixel Form
6. Create ColorCounts Object to save pixel data
7. Sorting in Descending Order 
8. Slicing from 0 to 5 
9. Displaying Detected Colors
10. That's It

Final Conclusion

By Reading My Complete Blog Post, You Can Develop A Custom Multiple Color Extractor App or Tool in Vanilla JavaScript. You Can Join Me on Instagram And Check Out My Website Where I Published Projects With Complete Source Code.

YouTube Video Tutorial

This Complete Video Will Show You The Video Example Of What We Discuss in this Blog Post, Through this you can easily develop what we read

Get Complete Source Code 

Download the Complete Source Code For Free.

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