Digit-Recognition | Recognize handwritten digits using back-propagation | Machine Learning library

 by   sachin-bisht Python Version: Current License: No License

kandi X-RAY | Digit-Recognition Summary

kandi X-RAY | Digit-Recognition Summary

Digit-Recognition is a Python library typically used in Artificial Intelligence, Machine Learning, Deep Learning, Pytorch applications. Digit-Recognition has no bugs, it has no vulnerabilities and it has low support. However Digit-Recognition build file is not available. You can download it from GitHub.

Recognize handwritten digits using back-propagation algorithm on MNIST data-set
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              Digit-Recognition has a low active ecosystem.
              It has 13 star(s) with 4 fork(s). There are no watchers for this library.
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              It had no major release in the last 6 months.
              Digit-Recognition has no issues reported. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of Digit-Recognition is current.

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              Digit-Recognition has no bugs reported.

            kandi-Security Security

              Digit-Recognition has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

            kandi-License License

              Digit-Recognition does not have a standard license declared.
              Check the repository for any license declaration and review the terms closely.
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              Without a license, all rights are reserved, and you cannot use the library in your applications.

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              Digit-Recognition releases are not available. You will need to build from source code and install.
              Digit-Recognition has no build file. You will be need to create the build yourself to build the component from source.

            Top functions reviewed by kandi - BETA

            kandi has reviewed Digit-Recognition and discovered the below as its top functions. This is intended to give you an instant insight into Digit-Recognition implemented functionality, and help decide if they suit your requirements.
            • Train the network
            • Calculate the derivative of a linear function
            • Prints a progress bar
            • Nonlinear function
            • Test network connectivity
            • Load MNIST dataset
            Get all kandi verified functions for this library.

            Digit-Recognition Key Features

            No Key Features are available at this moment for Digit-Recognition.

            Digit-Recognition Examples and Code Snippets

            No Code Snippets are available at this moment for Digit-Recognition.

            Community Discussions

            QUESTION

            Deep Learning solution for digit recognition on natural scene
            Asked 2021-Feb-26 at 02:12

            I am working on a problem, where I want to automatically read the number on images as follows:

            As can be seen, the images are quite challenging! Not only are these not connected lines in all cases, but also the contrast differs a lot. My first attempt was using pytesseract after some preprocessing. I also created a StackOverflow post here.

            While this approach works fine on an individual image, it is not universal, as it requires too much manual information for the preprocessing. The best solution I have so far, is to iterate over some hyperparameters such as threshold value, filter size of erosion/dilation, etc. However, this is computationally expensive!

            Therefore I came to believe, that the solution I am looking for must be deep-learning based. I have two ideas here:

            • Using a pre-trained network on a similar task
            • Splitting the input images into separate digits and train / finetune a network myself in an MNIST fashion

            Regarding the first approach, I have not found something good yet. Does anyone have an idea for that?

            Regarding the second approach, I would need a method first to automatically generate images of the separate digits. I guess this should also be deep-learning-based. Afterward, I could maybe achieve some good results with some data augmentation.

            Does anyone have ideas? :)

            ...

            ANSWER

            Answered 2021-Feb-22 at 22:53

            Your task is really challenging. I have several ideas, may be it will help you on the way. First, if you get the images right, you can use EasyOCR. It uses a sophisticated algorithm for detecting letters in the image called CRAFT and then recognizes them using CRNN. It provides very fine grained control over symbol detection and recognition parts. For example, after some manual manipulations on the images (greyscaling, contrast enhancing and sharpening) I got

            and using the following code

            Source https://stackoverflow.com/questions/65790276

            QUESTION

            Keras predict() valueError: input doesn't have the correct dimension
            Asked 2019-Dec-05 at 23:55

            I'm completely new to machine learning and I wanted to start with a fairly easy project: the digit recognition using the mnist data set. I'm using keras and tensorflow and I started using code I found here.The network is built and trained correctly and I now want to make a simple prediction. For starters I simply used one of the pictures in the part of the data set meant for testing and I would like my output to be that number. (In this case the output is supposed to be 7.) Here's my code:

            ...

            ANSWER

            Answered 2019-Dec-05 at 23:55

            ompletely new to machine learning and I wanted to start with a fairly easy project: the digit recognitiors I simply used

            Source https://stackoverflow.com/questions/59201542

            QUESTION

            " ImportError: DLL load failed: The specified procedure could not be found"- while Digit Recognition using CNN in Python using Keras
            Asked 2019-Feb-15 at 10:18

            I am trying to write a simple character recolonization code using convolutional neural network in python on windows. I am following this tutorial. But somehow I am having following error message. I could not find the appropriate reason of this error. It would be helpful for me if anyone can breakdown the error with probable solution.

            ...

            ANSWER

            Answered 2019-Feb-10 at 19:41

            Check import tensorflow.keras... or import keras...

            Keras switched to tensorflow.keras, which is a part of tensorflow>=1.10.0.

            Maybe it will help.

            Source https://stackoverflow.com/questions/54618946

            QUESTION

            Draw multiple rectangles in an image
            Asked 2019-Feb-09 at 19:11

            I am trying to locate rectangles in an image, and apply a classifier to recognize numbers inside each one, using a previously trained classifier:

            ...

            ANSWER

            Answered 2019-Feb-09 at 19:11

            This happens when you copy code.

            Steps to solution

            1) If you copy code, try to understand what is happening

            2) Realize that copying code is not magical. It simply doesnt have to work everywhere

            3) If there is error, google the error and try to find out why the error happens

            4) If you copy code from tutorial and it doesnt work, dont ask at StackOverflow

            5) Your problem is on the lines

            Source https://stackoverflow.com/questions/54609607

            QUESTION

            Problem with incompatible tensor shapes when training object detection model in Keras
            Asked 2018-Nov-30 at 13:37

            I am trying to extend a basic classification model (https://machinelearningmastery.com/handwritten-digit-recognition-using-convolutional-neural-networks-python-keras/) to a simple object detection model for single objects.

            The classification model simply classifies handwritten digits in images where the digit fills most of the image. To make a meaningful dataset for the object detection I use the MNIST dataset as base and transform it into a new dataset by the following steps

            1. Increase the image canvas size from 28x28 to 100x100
            2. Move the handwritten digit to a random position within the 100x100 image
            3. Create a ground truth bounding box

            Figure 1: Illustration of step 1 and 2.

            Figure 2: Some produced ground truth bounding boxes.

            The output vector from the model is inspired by the YOLO definition but for a single object:

            ...

            ANSWER

            Answered 2018-Nov-30 at 13:37

            The first dimension of all tensors is the batch size.

            Your loss should probably be working in the second dimension:

            Source https://stackoverflow.com/questions/53558571

            QUESTION

            prediction of MNIST hand-written digit classifier
            Asked 2017-Aug-07 at 19:57

            I am new to Deep Learning and am using Keras to learn it. I followed instructions at this link to build a handwritten digit recognition classifier using MNIST dataset. It worked fine in terms of seeing comparable evaluation results. I used tensorflow as the backend of Keras.

            Now I want to read an image file with a handwritten digit and predict its digit using the same model. I think the image needs to be transformed to be in 28x28 dimension with 255 depth first? I am not sure whether my understanding is correct to begin with. If so, how can I do this transformation in Python? If my understanding is incorrect, what kind of transformation is required?

            Thank you in advance!

            ...

            ANSWER

            Answered 2017-Aug-07 at 17:58

            To my knowledge, you will need to turn this into a 28x28 grayscale image in order to work with this in Python. That's the same shape and scheme as the images that were used to train MNIST, and the tensors are all expecting 784 (28 * 28)-sized items, each with a value between 0-255 in their tensors as input.

            To resize an image you could use PIL or Pillow. See this SO post or this page in the Pillow docs (linked to by Wtower in the previously mentioned post, copied here for ease of accesson resizing and keeping aspect ratio, if that's what you want to do.

            HTH!

            Cheers,

            -Maashu

            Source https://stackoverflow.com/questions/45552856

            QUESTION

            MNIST handwritten digit recognition with Keras
            Asked 2017-Jul-01 at 00:24

            My goal is to classify MNIST handwritten digits using keras. I am trying to reproduce the results from this website.

            When creating the model ("model = baseline_model()"), I get the error message AssertionError: Keyword argument not understood: kernel_initializer

            Do you know how to solve this issue ? I am using keras 1.1.1 with theano back-end

            ...

            ANSWER

            Answered 2017-Apr-06 at 16:11

            As it's mentioned in a comment at the beginning of an article - this is a version for keras 2.0.2, so in order to make this example working you need to use this version of Keras.

            Source https://stackoverflow.com/questions/43260332

            QUESTION

            Tesserocr did not recognize text
            Asked 2017-Apr-02 at 13:13

            I want to ask for suggestion on how to solve the problem of tesserocr did not recognize certain line from an image.

            This is the image. source is from Simple Digit Recognition OCR in OpenCV-Python

            The code

            ...

            ANSWER

            Answered 2017-Mar-30 at 06:58

            It's correctly recognized with Tesseract 4.00.00alpha with default psm 3 and oem 3 modes. Below is the result.

            Suggest to upgrade tesseract to v4.0 with your tesserocr if you are still using v3.x.

            EDIT:

            To upgrade tesserocr to support v4.00.00.alpha, check this "Is any plan to porting tesseract 4.0 (alpha)" issue page. There are guidelines to make it works.

            Source https://stackoverflow.com/questions/43088321

            QUESTION

            Why does this line produce an error?
            Asked 2017-Mar-21 at 20:13

            I'm completely new to keras and to get started, I'm trying to follow this tutorial. I use theano backend. Sadly, I already encounter a difficulty at this line:

            ...

            ANSWER

            Answered 2017-Mar-21 at 20:13

            I solved it by simply doing a complete reinstallation. Perhaps, there was something messed up with the old one. For Windows users I strongly recommend this tutorial: http://efavdb.com/gpu-accelerated-theano-keras-with-windows-10/

            Source https://stackoverflow.com/questions/42885646

            QUESTION

            Most simple approach for digit recognition in Python
            Asked 2017-Mar-10 at 00:30

            I have a simple digit recognition project and have noticed that people generally use two approaches when doing so in Python. My goal is to input a PDF document and get the HANDWRITTEN digits in particular places of the page.

            I saw that people either use opencv, as in this question, or scikitlearn, as is seen in this example. I am not familiar with either, and am wondering which one would be most simple to learn and implement, given my intended usage. Thanks.

            ...

            ANSWER

            Answered 2017-Mar-10 at 00:30

            I suggest that you should use both opencv and scikitlearn. After you turn your pdf into an image, you can use opencv for image pre-processing (Gaussian Blur, thresholding, Erosion/Dilation Filters), so that the digits will become more easy to extract. Then you can use contour tracing (again opencv) to detect the individual digits. After you have extracted your digits (and given that you have a training set), you can use scikitlearn for the classification.

            Source https://stackoverflow.com/questions/42702822

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network

            Vulnerabilities

            No vulnerabilities reported

            Install Digit-Recognition

            You can download it from GitHub.
            You can use Digit-Recognition like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.

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            For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
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