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Anushka Agarwal
เข้าร่วมเมื่อ 18 พ.ค. 2017
Bubble Sheet Multiple choice Scanner and test grader using OMR, Python, and OpenCV.
This OpenCV tutorial is for beginners just getting started learning the basics. Inside this guide, you’ll learn basic image processing operations using the OpenCV library using Python.
And by the end of the tutorial, you’ll be putting together a complete project to build your own Bubble Sheet Scanner.
While this tutorial is aimed at beginners just getting started with image processing and the OpenCV library, I encourage you to give it a shot even if you have a bit of experience.
Hey you all, welcome back to the first cool project of the tutorial series. Also, sorry for being late.
Link for the code: github.com/anushka17agarwal/TH-cam_codes/tree/master/Bubble%20sheet
I hope you enjoyed the video and more importantly learned something.
If you have any doubts, don’t forget to mention it in the comments.
Here are the ways you can connect with me:
1)Linkedin: www.linkedin.com/in/anushka-agarwal-b0a410160/
2)Instagram: areyou
#opencv #computervision
And by the end of the tutorial, you’ll be putting together a complete project to build your own Bubble Sheet Scanner.
While this tutorial is aimed at beginners just getting started with image processing and the OpenCV library, I encourage you to give it a shot even if you have a bit of experience.
Hey you all, welcome back to the first cool project of the tutorial series. Also, sorry for being late.
Link for the code: github.com/anushka17agarwal/TH-cam_codes/tree/master/Bubble%20sheet
I hope you enjoyed the video and more importantly learned something.
If you have any doubts, don’t forget to mention it in the comments.
Here are the ways you can connect with me:
1)Linkedin: www.linkedin.com/in/anushka-agarwal-b0a410160/
2)Instagram: areyou
#opencv #computervision
มุมมอง: 15 131
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You’re interested in Computer Vision, Deep Learning, and OpenCV…but you don’t know how to get started. Follow these tutorials to get OpenCV configured/installed on your system, learn the fundamentals of Computer Vision, and graduate to more advanced topics, including Deep Learning, Face Recognition, Object Detection, and more! This is just an introduction video, stay tuned!
big fan 😃
This is a nice place to start, but the sample code is buggy. While the code gives the impression that things are working, they are not working as you would think. 1. there's a bug with sorting the contours around line #41 #sorting the contours from top to botton questionCnts= contours.sort_contours(questionCnts, method="top-to-botton")[0] the method takes a string for sort direction and there is a typo in the text- should be 'top-to-bottom' with an end at the end of the string 2. there's a bug at line #57 as well in which every hit is being tested against the answer key instead of the single best answer for the question set Hopefully these comments will help people in the future on trying to understand what's going on and how the magic works. I found bug #2 first and then fixed things only to find bug #1 that really caused issues. The images were getting evaluated along the A-E columns per question which was a bazarre result before seeing what was going on.
Changing the answer key results in incorrect totals. Please advise.
Thank you, mam...Really great explanation
Which algorithm has been used in this project?
Canny
Hi Anushka I tried the python code for Bubble Scanner, Installed Python 3.11.4 64 bit and Visual Studio code latest version and Open CV latest version. Please do help Would appreciate the help. I got the below error after compiling the py code. questionCnts= contours.sort_contours(questionCnts, method="top-to-bottom")[0] ValueError: not enough values to unpack (expected 2, got 0) PS D:\Python_Workspace> & C:/Users/hp/AppData/Local/Programs/Python/Python311/python.exe d:/Python_Workspace/OMR.py Traceback (most recent call last): File "d:\Python_Workspace\OMR.py", line 41, in <module> questionCnts= contours.sort_contours(questionCnts, method="top-to-bottom")[0] ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\hp\AppData\Local\Programs\Python\Python311\Lib\site-packages\imutils\contours.py", line 24, in sort_contours (cnts, boundingBoxes) = zip(*sorted(zip(cnts, boundingBoxes), ^^^^^^^^^^^^^^^^^^^^^ ValueError: not enough values to unpack (expected 2, got 0) Please help and reply soon Thanks in advance
What is the possibility of connecting this functionality to an android system?
its asking for cv2 what it is ?
thank you so much
what if a student mark more than 1 circle in 1 question
Ma'am big fan!
Ma'am big fan!
Ma'am big fan!
ma'am big fan!
What to do if there are multiple columns in omr sheet☹️
...
Hi! Are you not gonna continue this series?
good work. keep doing it .
HI Anushka, what need to do if two circle value needs to scan at same time and make it dict.
sweetly and nicely explained concepts. Thanks. Looking forward for more details.
Good. Keep doing good work.
Very nice
sorry, this model can't rotate photo if the photo is upside down? Do you have any suggestion for that?
Can we do the same for more than 5 questions?
Yes you can, I've tried it with the same image. I've added another 5 questions and it worked perfect!
It was for a specific image, what about in general ?
Really great explanation. Looking for more projects using Python
Waoo ❤️❤️
I am almost 60 years old, but I could understand well. I have to see it again. It was great.
I'm glad it could help.
Hi, Anushka Aganwal, Could you please contact me? My email: milennia_maria@hotmail.com Very grateful !
Hi, I did the same until 7:29. But I have a problem :( blurred = cv2.GaussianBlur(gray, (5, 5), 0) TypeError: object() takes no parameters how will i solve this problem
Since I can't have a look at your code. stackoverflow.com/questions/23176597/python-object-takes-no-parameters-error/48728948 Here's a stack overflow link. Lemme know if it still throws the same error. Also, you can try copy pasting my code from GitHub(The link is in the bio) to ensure you aren't making any typos. Happy coding. :)
Nice
I can't wait to build one
Awesome work
Great work. Where can I find the code?
Very clear and subtle explanation
Seen your msg on django group... Its great 💥
I'm GLAD I COULD HELP. ALSO, DONT FORGET TO CHECK OTHER TUTORIALS OUT.
Noice
This is so helpful 😁 amazingg stuff
Thank you so much. And stay tuned!❤
Noice
👍👍
very interesting project with clear explanation ... Keep going anushka🔥
I'm glad you liked it. More videos coming soon.
👍👍
so excited for this!
❤️❤️❤️❤️
Amazing dude! Keep going!!
Well explained dude🔥🔥🔥
Great work
It would be great if u could put the codes in the description.
Yeah, sure. I'll update the description.
This is really helpful. ❤️
😄👌🏽so good