OpenCV Bootcamp
Before you begin your journey into the exciting world of Computer Vision, Deep Learning, and AI, you need to become an expert at using the world’s largest resource of Computer Vision, the OpenCV library. This free OpenCV course will teach you how to manipulate images and videos, and detect objects and faces, among other exciting topics in just about 3 hours.
Course Code
OCVBC
Course Code
Preparatory
Available in
Python
Price
Free
Enroll for Free
Installation
Select your preferences and run the install command.
Operating System:
Building From Source:
Language:
Run this Command:
Verification
To ensure that OpenCV is installed correctly, we can run the following example to show how to read and display image
Python
Change path/to/image to a real path of an image, then run this demo
import cv2 as cv
img = cv.imread("path/to/image")
cv.imshow("Display window", img)
k = cv.waitKey(0) # Wait for a keystroke in the window
C++
Change path/to/image to a real path of an image, then build this demo with OpenCV package and run it
#include
#include
using namespace cv;
int main()
{
std::string image_path = "path/to/image";
Mat img = imread(image_path, IMREAD_COLOR);
imshow("Display window", img);
int k = waitKey(0); // Wait for a keystroke in the window
return 0;
}
JavaScript
Copy this code into an html file and open it in your web browser
<title>Hello OpenCV.js</title>
<h2>Hello OpenCV.js</h2>
<p id="status">OpenCV.js is loading...</p>
<div>
<div class="inputoutput">
<img id="imageSrc" alt="No Image" />
<div class="caption">imageSrc </div>
</div>
<div class="inputoutput">
<div class="caption">canvasOutput</div>
</div>
</div>
let imgElement = document.getElementById('imageSrc');
let inputElement = document.getElementById('fileInput');
inputElement.addEventListener('change', (e) => {
imgElement.src = URL.createObjectURL(e.target.files[0]);
}, false);
imgElement.onload = function () {
let mat = cv.imread(imgElement);
cv.imshow('canvasOutput', mat);
mat.delete();
};
var Module = {
// https://emscripten.org/docs/api_reference/module.html#Module.onRuntimeInitialized
onRuntimeInitialized() {
document.getElementById('status').innerHTML = 'OpenCV.js is ready.';
}
};
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