A-Z | 0-9 Handwritten Character Recognition Crop Tool Using Python | Complete Tutorial (English)

In this tutorial you will learn to implement a real time 'A-Z and 0-9 Handwritten Character Recognition Crop Tool' using Python and related modules such as Tensorflow, Keras, OpenCV and Numpy. This tutorial
has covered with 3 main sections such as Data Pre-processing, CNN Architecture and Real Time Application Implementation.

In data pre-processing we are going to merge two datasets, which consist of both A-Z handwritten characters and 0-9 handwritten digits respectively. Then the individual merged dataset is going to be fed in to our CNN and we are going to pick the best model which will be created at the end of our model training phase. Then we are going to embed our trained CNN model to real time character cropping application and go through with interesting results.

Chapters/Sections
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00:01:52 - Data Pre-processing
00:27:00 - CNN Architecture
00:40:00 - Real Time Crop Tool Application

Download the project
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Github:

References
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[TheSineth]

00:01:52 - Data Pre-processing
00:27:00 - CNN Architecture
00:40:00 - Real Time Crop Tool Application

[karanrathi]

While training the model it is giving error like ValueError: Data cardinality is ambiguous: x sizes: 88490

y sizes: 353960

Make sure all arrays contain the same number of samples

[tanishkakatiyar]

can you please tell the learning rate of this model

[AseenaSk-zy]

how to dowload the training and testing labels?

[shradhanwitamukherjee]

In the application code I am getting this error in last
NameError: name 'setup_display' is not defined
Please help

[-surajyadav]

Sir, can you please explain the use of line 10 of code i.e digit_target+=26, ,, I'm unable to figure out use of that line

[aaaqaaaa]

Can use this code for word recognition ?

[jean-pierreayoub]

hello, i want to ask you if you can help me when writing a character directly recognize it and not crop it

[bujhas]

Can you tell me what are the packages that needs to be download to run this project?

[nikitasingh]

Application ko close karne ke liye ham kis button ka use karenge

[kavipriyaravikumar]

I am not able to load the A-Z CSV file in my notebook. What to do

[manikandansreedharan]

Bro how i will contact you to help me build the project.

[jeelvaghani]

Bro I am getting error at the last part of application
cv2.setMouseCallback(window_name, mouse_click_event)
error : OpenCV(4.1.2) error: (-27:Null pointer) NULL window handler in function 'cvSetMouseCallback'


above is the error I get
please reply me what can I do now
I was trying in google colab
Plz help me as fast as possible

[gopunikhil]

bro where is the training dataset(numpy train dataset and labels)

[jean-pierreayoub]

can I contact you to help me build the project on my desktop ?

[shounakjindam]

Bro I am getting the error of unable to allot 1.3 GB of space. Kindly look into this

[_khanzaid]

how do i run through ur git code directly

[meriyemelhajoui]

i got this problem :
plt.imshow(shuffled_data[i].reshape(28, 28), interpolation="nearest", cmap="gray")
9 plt.show()

TypeError: 'NoneType' object is not subscriptable