DEV Community

loading...

A simple image edge detection method

vic
・1 min read

A simple image edge detection method

General steps:

  1. Zoom pictures to improve efficiency
  2. Picture grayscale
  3. Calculate edges based on brightness

The third step is the most critical. There are many ways to directly contrast the adjacent brightness.

Instructions:

Install

composer require lizhichao/one-img

Enter fullscreen mode Exit fullscreen mode

Example


$img_path = '1.jpg';
$img = new \OneImg\Border();
$img->setImg($img_path)
    ->scale(300, 300)
    ->outline()
    ->save(); //Output to browser

Enter fullscreen mode Exit fullscreen mode

effect

Alt Text
Alt Text

Code warehouse

https://github.com/lizhichao/doImg

My other warehouse welcome star

Discussion (0)