OpenCV Python Tutorial For Beginners 16 – matplotlib with OpenCV




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In this video on OpenCV Python Tutorial For Beginners, I am going to show How to use matplotlib with OpenCV. matplotlib is a User friendly, but powerful, plotting library for python. I is commonly used with OpenCv images. pylab is a module in matplotlib that gets installed alongside matplotlib; and matplotlib.pyplot is a module in matplotlib. matplotlib is a python 2D plotting library which produces publication quality figures in a variety of hardcopy formats.

Gist of code I used in this video (How to Display a Matplotlib RGB Image ) – http://www.codebind.com/python/opencv-python-tutorial-beginners-matplotlib-opencv/

OpenCV is an image processing library created by Intel and later supported by Willow Garage and now maintained by Itseez. opencv is available on Mac, Windows, Linux. Works in C, C++, and Python.
it is Open Source and free. opencv is easy to use and install.

Starting with an overview of what the course will be covering, we move on to discussing morphological operations and practically learn how they work on images. We will then learn contrast enhancement using equalization and contrast limiting. Finally we will learn 3 methods to subtract the background from the video and implement them using OpenCV.

At the end of this course, you will have a firm grasp of Computer Vision techniques using OpenCV libraries. This course will be your gateway to the world of data science.

Feel the real power of Python and programming! The course offers you a unique approach of learning how to code by solving real world problems.

#ProgrammingKnowledge #ComputerVision #OpenCV
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Comment List

  • ProgrammingKnowledge
    January 16, 2021
  • ProgrammingKnowledge
    January 16, 2021

    After executing "from matplotlib import pyplot as plt" command in cmd as well as in pycharm it is showing
    ImportError: DLL load failed: The specified module could not be found. error …i imported matplotlib in pycharm …but still it is showing……….please resolve it…..anyone

  • ProgrammingKnowledge
    January 16, 2021

    @ProgrammingKnoeldge, @codebind, @Yogesh Patel, SIMPLY GREAT video series. Just one small question specific to this particular episode: The 'THRESH_TRUNC' method displays all consistent gray in the right half of the image in an individual / dedicated window (looks logically correct). But if you display it as part of the 2×3 array in Matplotlib, the same method displays all white in the right half of the image (looks logically incorrect). WHY?

  • ProgrammingKnowledge
    January 16, 2021

    Hey! The tutorials are amazing and clear but the only thing is you are talking too slow talk a bit faster

  • ProgrammingKnowledge
    January 16, 2021

    The matplotlib window didn't open. Help?

  • ProgrammingKnowledge
    January 16, 2021

    using matplotlib image is not showing in new window and also no x and y cordinates display when hovering mouse on image

  • ProgrammingKnowledge
    January 16, 2021

    the matplot image is being shown in the terminal, not in separate window….please help sir

  • ProgrammingKnowledge
    January 16, 2021

    Why are we adding the matlabpolot package again in the IDE when we already have installed it from command line ?

  • ProgrammingKnowledge
    January 16, 2021

    Okay, I'm very late to the game here, but I'm losing it. I have followed all tutorials up to this point and have been able to resolve other problems just by Googling. This one stumps me, though. I am using a Raspberry Pi 3 with Buster. I am trying to use Geany but keep getting the same error as others, "cannot import name 'pyplot' from matplotlib'". I have ensured build is set to python3.

    Any help would be greatly appreciated as I have very little hair left to pull out of my head and I can't bash my head against the desk anymore because I have a headache from that.

  • ProgrammingKnowledge
    January 16, 2021

    tiny contribution: if you get an error like "matplotlib is currently using agg …etc", you need to install tk. Instead of using pip or inside your virtual env, use terminal and your pkg manager. For ubuntu:
    sudo apt install python3-tk

  • ProgrammingKnowledge
    January 16, 2021

    In my test , this code throw errors,you just need to comment 'cv2.waitkey(0)',then everything will be ok

  • ProgrammingKnowledge
    January 16, 2021

    Thanks bro………

  • ProgrammingKnowledge
    January 16, 2021

    No module named 'matplotlib.pyplot

  • ProgrammingKnowledge
    January 16, 2021

    I'm using Spyder and there it is showing matplotlib graf in the the console not creating a separate window for it.

  • ProgrammingKnowledge
    January 16, 2021

    How can I save the matriz of RGB color in txt?

  • ProgrammingKnowledge
    January 16, 2021

    Have you done nptel python course ? Same tutorial

  • ProgrammingKnowledge
    January 16, 2021

    you have upgraded your mic! Thanks for that ! == Like this video!!! 🙂

  • ProgrammingKnowledge
    January 16, 2021

    Good vid bro

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