open_cv_cpp.tar.gz

OpenCV

OpenCV-GUI

OpenCV is extensively used in the business world for various applications, including facial recognition, object detection, and image and video manipulation. 

In this course, you'll learn the basics of OpenCV—an open-source machine learning library. You'll begin with an overview of the OpenCV library before moving on to practical applications like viewing images, videos, and webcam input. Next, you'll learn how to edit images with tools like decolorizing, cropping, resizing, and captioning. You'll dive into machine learning functions like edge detection, contour detection, corner detection, and face detection. Finally, you'll work on practical projects like document scanners and object trackers. 

By the end of this course, you’ll have a solid understanding of OpenCV and machine learning with C++. You'll be able to create functional applications using computer vision principles, preparing you for real-world projects. Taking this course will allow you to take your programming skills to the next level.

Learning OpenCV from Scratch with C++

At the edges, pixel intensities are similar.

At the edges, there's a drastic change in pixel intensities. 

The pixel intensity is proportional to the number of edges. 

What is the main principle behind the Sobel edge detection algorithm?


What is the main principle behind the Sobel edge detection algorithm?

- `contourindex` is the index of the contour that we want to draw.
- A `contourindex` value of `-1` will give the command to draw only one contour.

- `contourindex` is the total number of contours that we want to draw.
- A `contourindex` value of `-1` will give the command to draw only one contour.

- `contourindex` is the total number of contours that we want to draw.
- A `contourindex` value of `-1` will give the command to draw all the contours.

- `contourindex` is the index of the contour that we want to draw.
- A `contourindex` value of `-1` will give the command to draw all the contours.

What's `contourindex`, and what's the meaning of `contourindex` value `-1`?

What’s <code>contourindex</code>, and what’s the meaning of <code>contourindex</code> value <code>-1</code>?

It can't detect the edges of a colored image.

It can detect the edges of grayscale images easily and correctly.

Colored images cannot be converted to Canny images.

It cannot detect the edges of a grayscale image.

Why do we need to convert our image to grayscale before converting it to a Canny image?

Why do we need to convert our image to grayscale before converting it to a Canny image?

What is not a step in the Canny edge detection algorithm?

What is not a step in the Canny edge detection algorithm?

 Quiz yourself on what you've learned in this chapter.

Introduction to C++ OpenCV

Reading Media

Editing Images

Reading and Editing Images with OpenCV

Advanced Editing

Detection

Assessment on Advanced Editing and Detection

Real-Life Projects

Conclusion

Appendix

Quiz Yourself on Detection