Python ANPR with OpenCV and EasyOCR in 25 Minutes | Automatic Number Plate Recognition Tutorial

[@anthonylwalker]

Thanks, this has helped simplify a lot of techniques I was getting my head around. Such a great pipeline, and a great tutorial. Keep them up in the same style!

[@NicholasRenotte]

Thanks so much @Anthony, glad you enjoyed it!

[@mencychristian1831]

Man you saved my presentation ....thank you so much!

[@NicholasRenotte]

YESS, glad I could help @Mency, how did your presentation go?

[@mencychristian1831]

@@NicholasRenotte That was my best presentation ever 😀

[@NicholasRenotte]

@@mencychristian1831 YESSSSS, so glad to hear!!

[@ScaryLasers]

You are awesome! I am just digging in to python and you my friend are so informative, easy to undersatand, and the pacing is perfect. Thank you will be following and checking out your other vids 😁

[@philatkinson8051]

Great video and really good explanation and as for typing that amount of code by hand and it working first time. . . Just amazing.

[@dhruvdarji7729]

I import opencv library but kernal automatically close??

[@abhinavsingh595]

Program is working well, that helped a lot thanks.

[@abhinavsingh3513]

Bro please tell me how to install and run the project please

[@padynz9869]

Very lucid and beautifully presented, Nicholas.

[@user-zj9pq5xc7x]

I have mad respect towards you for this. thank you so much

[@weixiangng8279]

Great explanation from you Nicholas. Like the method you used.

[@ronaktawde]

please make object tracking & counting video on vehicles in opencv & python

[@jesunahmadushno]

Hi, whenever i'm trying to import cv2 and other my jupyter kernel The kernel appears to have died. It will restart automatically. do you have any solution?

[@EduardoAvelar]

Amazing approach. Thanks for sharing.

[@NicholasRenotte]

Thanks so much @Eduardo!

[@JH-ms1jv]

Hey mate. Great videos. I’ve read through a few comments and pretty excited to see this “new” video ahah. Any idea when it’s going to be released?

[@NicholasRenotte]

Was smashing it out til late last night @J H, let me know what you think: kzbin.info/www/bejne/Zl6XoZKHnNeXmKc

[@surajprakash4630]

Thanks man it's working fine...u explains very well

[@vikashchand.]

Killing it man! 🔥 Can you show how you would turn this into an api and host it maybe?

[@NicholasRenotte]

WHADDUP @Vikash! Definitely, have some stuff with Streamlit and FastAPI planned!!

[@vikashchand.]

@@NicholasRenotte sounds awesome man! Looking forward to it!

[@raymondmichael4987]

9 months later; asking if you made it bro

[@manisharya2138]

Please make one more video with great accuracy. This video is also excellent but I test some images on the data sometimes accuracy miss

[@ashish.ksingh8765]

Can u make some videos using open cv.... (Problem statement on real life based.. ) And also tere solution.

[@ozlematz2528]

Thank you my teacher. Nice education. ^_^

[@NicholasRenotte]

So glad you enjoyed it Özlem!

[@LuisMunoz-ju2in]

You're amazing. This is the best video and tutorial I've seen. Please create a tutorial to apply Machine Learning to Number Plate Recognition!

[@NicholasRenotte]

Definitely, going to try for deep learning @Luis!

[@abdulwaseymohammed9729]

Hi Nicholas, thanks for this video. Could you do another video that shows how to extract hand written text from the Crosswords puzzles and compare that with the correct answers?

[@piyushkumar-wg8cv]

What's the difference between this video and your 2 hour long video on ANPR

[@Ben-gh1bz]

This video uses OpenCv, the 2 hour long video uses TensorFlow

[@joshinc6890]

Thank you for sharing this great knowledge

[@NicholasRenotte]

Anytime @Josh, glad you enjoyed it!

[@subhronilbiswas2190]

My Jupiter kernel is dying each and every time I'm trying to import easyocr. Plzzzz help 😭😭😭😭😭😭😭😭😭😭

[@user-tw9oi5bu2k]

why other images besides the 4 images provided cant extract the plate number?

[@nathakritnukulrat3063]

I've got this problem too

[@vonvanmany997]

Hi Nicholas, Thank You for all the hard work you put into this tutorial, its taught me SO Much.. I have a question about the images you used vs. My own images , yours work fine in the program, but the ones I used doesn't populate any coordinates in the location cell. the properties of your images are: 160KB in sizes, 300dpi, 960x722 (dimensions) and 24 bit depth, my images are: 600KB, 96dpi, 2000x1500, and 24 bit depth, aren't

[@vonvanmany997]

is this the reason why the coordinates aren't population or am I missing something in the code

[@godfreyfonseca5707]

Really amazing,was very helpful. Just wanted to know if there's a way to use an entire dataset of images for this technique? Any tutorial you may know of? Thanks In advance!

[@NicholasRenotte]

Stay tuned @Godfrey, updated version of this tutorial coming out this week!

[@godfreyfonseca5707]

@@NicholasRenotte great 😍🙌... looking forward to it!

[@businessgamerprb5398]

Hi... Great video but the problem is it works only on about 10 percent of images in my data set... On others it either says cannot find contour or just detects wrong contour... I have tried with 400+ images and only got about 40-50 correct results... What should i do... Or is this algorithm not enough??

[@rickieryan3919]

Was just involved in a hit and run... Can you help me uncover the license plate number. should be fun haha

[@NicholasRenotte]

Oh no! You should take a look at the super resolution models!

[@Andy-rq6rq]

Awesome vid Nick, surprised you don't have more subs. Any chance of considering doing semantic segmentation, particularly with the human body.

[@NicholasRenotte]

Thanks so much @Andy, 😅 it's taken a little while but i've really only hit the ground running for a few months now! We'll get there! I've done it with JS (kzbin.info/www/bejne/gXLEiZV9p56iZtU), Python is defs coming!

[@Andy-rq6rq]

@@NicholasRenotte Wow thanks!

[@NicholasRenotte]

@@Andy-rq6rq anytime hombre!

[@gustavojuantorena]

Another great tutorial, Nicholas! 👏👏

[@NicholasRenotte]

🙏🙏🙏 thanks so much @Gustavo!!

[@absormu929]

Thanks bro Nicholas Renotte....

[@NicholasRenotte]

Thanks a ton @Absor!

[@marziehkhaliliy6908]

this Code is perfect. thanks. but, Is there anyone to help me? I have problem in 4th part and i got error:(

[@jainvinay]

Can you please write down the code

[@232nate]

Thank you for the detail

[@NicholasRenotte]

Glad you enjoyed it @232nate, this is the updated version if you're interested: kzbin.info/www/bejne/Zl6XoZKHnNeXmKc

[@satyanarayanakoppuravuri]

i am not getting any location which you explained at 14:20 then what to do at that time?

[@sedky69]

Great video. Do you have a video on how to incorporate machine learning into this?

[@datapro007]

Hi, Nick, Great video. I did spend a lot of time on the Tensorflow version of this project that you posted a while back. What do you see as the plusses and minuses of the two different approaches?

[@NicholasRenotte]

The TF version is a lot more resilient to different photos of plates. This almost needs to be tuned each time depending on lighting, contrast, hue and sat to be able to effectively pick up the plate each time. However the TF version is wayyyy more compute heavy.

[@adityagoel2792]

@@NicholasRenotte I had the same question. Thanks for clarifying Nick! Keep them coming - you're a GREAT teacher! :)

[@swapnilchowdhury3957]

Everything worked perfectly fine and I even got the cropped number plate but the line result = reader.readtext(cropped_image) Showing unknown C++ exception from opencv code I don't have GPU so using CPU only Plz help

[@NicholasRenotte]

Try uninstalling opencv and reinstalling it using pip install opencv-python

[@arabe7486]

hi, im like zero of python, im trying to follow step by step but i could not install imutil, i've installed easyocr but here can i find imutil to install? thanks

[@johanneszwilling]

😎👍🏼 PERFECT Tutorial!

[@theertham9399]

Hi sir am getting this error from matplotlib._path import ( ImportError: DLL load failed while importing _path: The specified module could not be found.

[@NicholasRenotte]

Can you change it to from matplotlib import pyplot as plt?

[@costin2k]

Great video , i want to add to this project real time object detection from webcam. Can you tell me few stepts for that? Thanks in advance :)

[@dharshinir7154]

Clearly explained ....👏

[@user-pv3ub2zz1y]

Thank you!!! It is very interesting. I have a question. If the number is compound. And there are 2 rectangular counters? How much I tried, only the last contour defines.

[@jiachuntan3144]

I noticed that the program doesnt work well with black plates, how should I tweak it so it can detect black colour plates?

[@NicholasRenotte]

Heya @Jia, can you share some of your example images? I can play around with the mask settings for you and give you some updated parameters!

[@jiachuntan3144]

@@NicholasRenotte sure, can u drop your email here ??

[@NicholasRenotte]

@@jiachuntan3144 hmu on LinkedIn to share privately! www.linkedin.com/in/nicholasrenotte/

[@electromusic9206]

Hiii I am getting error like attribute error Cv2. Cv2 module not found something like that Help me out off it I am using Jupiter notebook

[@NicholasRenotte]

Try installing opencv-python!

[@geethasubramanyam]

Notes to Self: @ 7:22 In the given code, the imshow() function is used to display the grayscale image, which has only one color channel. However, the imshow() function expects an RGB image to display, so the cvtColor() function is used to convert the grayscale image to RGB format by replicating the pixel values across all three color channels. This allows the imshow() function to display the image correctly, but the resulting plot will still show the image in grayscale.

[@azmijedli743]

haw can i applied on raspberry pi plz for my graduation project

[@pokojowyfreestyle9269]

I don't know why, but it works for me only with Porsche, the others have still None on location step. Could you help me and tell on which parts of code should i focus?

[@NicholasRenotte]

Heya @Pokojowy, walk through each step and ensure you're still detecting the edges appropriately. You might need to play with the Canny algorithm line!

[@AbhinavKumar-xi2qw]

Can you please tell me how can we give command to Arduino to do something when we detect face or our algorithms given us yes to do something

[@NicholasRenotte]

Haven't worked much with arduinos yet but when I do I got you!

[@aniketbhanderi5927]

I am getting this error. error: (-215:Assertion failed) (mtype == CV_8U || mtype == CV_8S) && _mask.sameSize(*psrc1) in function 'cv::binary_op'

[@aniketbhanderi5927]

@Nicholas Renotte Can you please help..!

[@user-ed7cg1pv5f]

Thank you so much for this code! Is there any way to do a performance evaluation of the code?

[@jaytab3686]

Is this one better than the other one?

[@teilorlopes1039]

Great tutorial! What about to implement usign live videos!

[@kronos9913]

Nice thanks bro!

[@NicholasRenotte]

Thanks so much @Kronos!

[@ChirawatNg]

Great tutorial !!!! Thank you

[@LIMYEOWCHYE]

Is it possible to actually automatically use the pictures inside the folder without manually typing the image file into cv2.imread?

[@NicholasRenotte]

You can loop through the images in the folder using os.listdir then pass them to the model!

[@tejeshwarrajput1679]

Great video!! i have a doubt can do the same thing by using visual studio code ??

[@NicholasRenotte]

Sure can, just need to install a Python interpreter into VSC.

[@MrLyasine]

thank you for this videos but I found that works only on separated cars I mean when there is only one car in a photo, and also the car doesnt have rectangles in its shape

[@erinbiju7766]

i copy pasted your code in Pycharm ,it shows no error but it does not display any output.

[@Knowledge_Wave813]

Amazing 👍👍

[@sakshishrivastava0210]

Thanks a lot brother🙌

[@NicholasRenotte]

Anytime @Sakshi!

[@laponiec]

All I got after reading the text from the cropped image was an error: \Scripts\venv\lib\site-packages\easyocr\craft_utils.py", line 31, in getDetBoxes_core nLabels, labels, stats, centroids = cv2.connectedComponentsWithStats(text_score_comb.astype(np.uint8), connectivity=4) cv2.error: Unknown C++ exception from OpenCV code

[@h-electronics602]

I have a problem in when in section number zero when I import the libraries. "The kernel appears to have died. It will restart automatically." it occurs only when I try to run "import easyocr", when I remove it runs normally, please help!

[@NicholasRenotte]

Hmm, what does it say in your terminal or command prompt that's running the Jupyter Notebook server?

[@h-electronics602]

@@NicholasRenotte I solved the problem, I cleaned my pc from everything related to python and download everything from the begging I Guess something was related to the log in appdata file was making problem. Thank you!

[@NicholasRenotte]

@@h-electronics602 awesome stuff, yeah sometimes there's a bunch of conflicts and it requires a clean slate. Awesome work on getting it working though!!

[@okanmaden3980]

hey bro can u explain why text = result [0] [-2]. I didnt understand why it's "-" and why "2".

[@NicholasRenotte]

The -2 grabs the second last value from the array!

[@Gudduyadav_1989]

Really great 👍 thank you 🙂

[@rohit_mondal__]

thanks sir !...this helped me

[@NicholasRenotte]

You're welcome man! So glad it helped!

[@rohit_mondal__]

@@NicholasRenotte sir can u please make a video on yolo using keras ?

[@NicholasRenotte]

@@rohit_mondal__ will take a look!

[@01bit]

Great explanation!!!

[@NicholasRenotte]

Thanks a bunch @01bit, so glad you enjoyed it!

[@yativijay1336]

can you please make a video for helmet detection using open cv please

[@NicholasRenotte]

Heya @Yati, check out the latest video, should give you a walkthrough on how to do it!

[@rverm1000]

can this be used to detect numbers on coins? and color of coins?

[@DefendIntelligence]

You make amazing content Nicholas ! I have a (french) channel too on AI, we could collaborate on a video. Cheers :)

[@NicholasRenotte]

Hell yeah!! Thanks so much 🙏!! Let’s touch base in the new year? Want to add me on LinkedIn and plan something out?

[@giggslim4917]

Hi nic anyway to edit the code such that it can better detect images of black license plates with white text? (Singaporean License Plate)

[@NicholasRenotte]

Heya @Giggs! Try out the new workflow, it's way more accurate and can do different types of plates!

[@candrasniper3404]

What if there is another text beside the number plate? Such as, numbers on car sticker.

[@NicholasRenotte]

Normally would need to do some additional processes to manually filter it out. Could also filter based on detected region size i.e. the main plate is going to be the largest detected block of text (most of the time)

[@candrasniper3404]

@@NicholasRenotte if using region detected trick, so it must have a certain distance from the camera to get the range of plate box, if you do it in real time from a video capture, not from a photo. But it will also get another text in a box that close to the range region that we've set.

[@raghuram9876]

it is not working for me cv2.error: OpenCV(4.5.1) C:\Users\appveyor\AppData\Local\Temp\1\pip-req-build-wvn_it83\opencv\modules\imgproc\src\color.cpp:182: error: (-215:Assertion failed) !_src.empty() in function 'cv::cvtColor' it is showing me this no matter how many times i am editing

[@ajaybhadwal]

Amazing Nicholas. I am into ANPR technology. Let me know how we can collaborate.

[@NicholasRenotte]

Cool stuff @Viaggio!

[@shukursabzaliev8929]

Amazing intro ))) One question though, can the image size affect findContours functions?

[@nishkarve]

Nicholas, great job. How do I apply EasyOCR on a camera stream?

[@MaestriiCabanelor]

please make video when u capture with live camera the plates

[@NicholasRenotte]

Yup, definitely coming @Seby!

[@vishwashehan8441]

im having a error in reader = easyocr.Reader(['en']) line it says it's detection models an after like 2% it is getting stucked kinda very very slow any idea?

[@ygproductions4025]

I want to make a executable file with a GUI for this project. How can I do that? Please help me.

[@NicholasRenotte]

Check out PySimpleGUI, you could probably wrap the code into something like that!

[@ramsimmha8672]

How to perform the same operation using a video file. kindly update regarding that?

[@NicholasRenotte]

Heya Ram, take a look at my latest ANPR video. All you need to do is sub out cv2.VideoCapture(0) for cv2.VideoCapture('path/to/your/file')

[@rizaladhi7066]

please share tutorial how to search number in bulk image folder use free api ocr

[@Eightminutesengineering]

Great video , very helpful. When i am running this code , i am getting this error message ModuleNotFoundError: No module named 'imutils can you please guide

[@NicholasRenotte]

Heya @Faryal, can you ensure you're running the notebook in the same kernel as what you've installed the dependencies in.

[@Alpha-mk5qw]

Are there any videos showing a physical prototype or build with a camera?

[@gugasevero76]

Hi body! I run your code on colab. Almost everything perfect but other plate I tryed it recognize letter "I" as "1". There is some update?

[@nimeshkumar3663]

hi, I just wanted to know can I use this model as a Text detection model, will this model be able to recognize text from images.

[@NicholasRenotte]

Sure can, check out the drug extraction video I did for PaddleOCR. I show how to do it there.

[@byiringirooscar321]

how to store those number plate recognized like in mysql?

[@NicholasRenotte]

You could connect to a DB using something like pypi.org/project/MySQL-python/ and push those results out!

[@RanjitSingh-rq1qx]

Sir how can we create the front end for this project by using flask.

[@kennyackerman1938]

I have this error thats bugging me it says "CUDA not available - defaulting to cpu. Note: this module is much faster with a GPU." i have went on and installed Cuda on my windows 10 and I have also nvidia GeForce GTX 960M ..can anyone help me

[@NicholasRenotte]

Heya @Kenny, can you check you have a compatible version of Tensorflow, CUDA and cuDNN from this list: www.tensorflow.org/install/source you need to have a matching combination otherwise Tensorflow doesn't pick up GPU acceleration.

[@nas7553]

Same problem

[@kingsleydrah562]

Yeah, same issue 😢

[@jafaraqeel8248]

File "c:\Users\AX\Desktop\ANPRwithPython-main\ANPR - Tutorial.ipynb", line 320, in "execution_count": null, NameError: name 'null' is not defined

[@hariskabeerhariskabeer6190]

hi nicholas the video was literally awseome. but there is one thing i need to ask is how can i store the results in my data base because i am working on a parking system based on facial recognition and license plate recognition i have to first save the license plate result then go to the next process of verification and other stuff help will be appreciated.

[@NicholasRenotte]

Depends on your db but you could output the results using a Python SQL client or something along those lines!

[@malikahmad2441]

@@NicholasRenotte is there any comma separation technique used and extract only number plate characters from the result and store it into a db ?

[@NicholasRenotte]

@@malikahmad2441 not sure what's the goal of splitting by commas but you could use the split method. e.g. 'PLATE,99'.split(',') #will split based on commas

[@AKKJ420]

easyocr cannot be installed on a raspberry pi 4. I have spent hrs trying to fix it but I gave up and tried a different package pytesseract or something which seem to work now.

[@AKKJ420]

I have managed to get this to work on Jetson Nano until I got to easyOCR where I m getting the following error: CUDA not available - defaulting to CPU. Note: This module is much faster with a GPU. Illegal instruction (core dumped) Another rabbit hole

[@RavnnN]

line 28, in new_image = cv2.drawContours(mask, [location], 0,255, -1) error: (-215:Assertion failed) reader.ptr != NULL in function 'cvDrawContours' got this error... can u resolve it?

[@bhushantayde5762]

Sir can you further modify this code to be used in Parking Management System.

[@NicholasRenotte]

Sure could!

[@m02-049]

In my case it is detecting headlights and bumper

[@incredible792]

I got this error "too many values to unpack (expected 2)" when i did the crop part

[@psybertron2650]

How to make use of deep learning to improve it's accuracy.. I'm actually new to this do i don't really know much

[@NicholasRenotte]

Nah no stress man, welcome to the fam! You can do it in a few ways: 1. Use a one step model to identify the frame (deep learning can improve the plate detection) then use standard OCR 2. Use a two step model to both identify the frame and extract the text!

[@psybertron2650]

Thank you so much bruhh!!! I'll research on this and get better at it.. and your video really helped me alot

[@NicholasRenotte]

@@psybertron2650 awesome stuff, let me know how you go!

[@meriljayasinghe9292]

can u do this with deep learning ?

[@NicholasRenotte]

@@meriljayasinghe9292 EasyOCR, is actually using PyTorch in the background to perform the detection!

[@akshitsoni9800]

Hey bro m facing assert error 251 for drawcontour anu suggestion how to solve it

[@ankitprajapti22191]

Thank you

[@C-Krunali]

Can I use this code to detect number plate from videos

[@gimanthadesilva]

I get an error when installing torch, windows 10 "Could not find a version that satisfies the requirement"

[@NicholasRenotte]

Heya @Gimantha, what command did you use to run the install?

[@gimanthadesilva]

@@NicholasRenotte hey thanks for the reply, the command i used is, pip install torch==1.8.1+cu102 torchvision==0.9.1+cu102 torchaudio===0.8.1 -f download.pytorch.org/whl/torch_stable.html

[@NicholasRenotte]

@@gimanthadesilva And you're running Python 3.x? I'd check this and make sure that the machine you're running meets the dependencies: pytorch.org/get-started/locally/

[@drew9017]

@@gimanthadesilva make sure you are running 64 bit python, I had this issue too