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Dockerfile

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+FROM python:3.11-slim-bullseye
+
+RUN mkdir -p /home/isl-backend
+
+WORKDIR /home/isl-backend
+
+COPY . .
+
+RUN apt update
+
+RUN pip install tensorflow --no-cache-dir
+
+RUN pip3 install django Pillow django-sslserver opencv-python  tensorflow_hub scikit-learn django-cors-headers 
+
+CMD ["python" , "manage.py" , "runserver" , "0.0.0.0:7860"]

IslBackend/asgi.py

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+"""
+ASGI config for IslBackend project.
+
+It exposes the ASGI callable as a module-level variable named ``application``.
+
+For more information on this file, see
+https://docs.djangoproject.com/en/4.1/howto/deployment/asgi/
+"""
+
+import os
+
+from django.core.asgi import get_asgi_application
+
+os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'IslBackend.settings')
+
+application = get_asgi_application()

IslBackend/settings.py

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+"""
+Django settings for IslBackend project.
+
+Generated by 'django-admin startproject' using Django 4.1.6.
+
+For more information on this file, see
+https://docs.djangoproject.com/en/4.1/topics/settings/
+
+For the full list of settings and their values, see
+https://docs.djangoproject.com/en/4.1/ref/settings/
+"""
+
+from pathlib import Path
+
+# Build paths inside the project like this: BASE_DIR / 'subdir'.
+BASE_DIR = Path(__file__).resolve().parent.parent
+
+
+# Quick-start development settings - unsuitable for production
+# See https://docs.djangoproject.com/en/4.1/howto/deployment/checklist/
+
+# SECURITY WARNING: keep the secret key used in production secret!
+SECRET_KEY = 'django-insecure-k0wkaith=txb6hxf&d(-nf5w@nkkon-nlc5db2k=-*oh037ipx'
+
+# SECURITY WARNING: don't run with debug turned on in production!
+DEBUG = True
+
+ALLOWED_HOSTS = ['*']
+
+
+
+
+
+
+CORS_ALLOW_ALL_ORIGINS = True # If this is used then `CORS_ALLOWED_ORIGINS` will not have any effect
+CORS_ALLOW_CREDENTIALS = True
+CORS_ALLOWED_ORIGINS = [
+    'http://localhost:3000',
+] # If this is used, then not need to use `CORS_ALLOW_ALL_ORIGINS = True`
+CORS_ALLOWED_ORIGIN_REGEXES = [
+    'http://localhost:3000',
+]
+CORS_ORIGIN_WHITELIST = [
+'http://localhost:3000',  # for localhost (REACT Default)
+'http://192.168.10.45:3000', # for network
+]
+
+CSRF_TRUSTED_ORIGINS = ['http://localhost:3000']
+
+CORS_ALLOW_HEADERS = [
+'accept',
+'accept-encoding',
+'authorization',
+'content-type',
+'dnt',
+'origin',
+'user-agent',
+'x-csrftoken',
+'x-requested-with',
+]
+
+# Application definition
+
+INSTALLED_APPS = [
+    'django.contrib.admin',
+    'django.contrib.auth',
+    'django.contrib.contenttypes',
+    'django.contrib.sessions',
+    'django.contrib.messages',
+    'django.contrib.staticfiles',
+    'api',
+    'corsheaders',
+    "sslserver",
+]
+
+MIDDLEWARE = [
+    'corsheaders.middleware.CorsMiddleware',
+    'django.middleware.security.SecurityMiddleware',
+    'django.contrib.sessions.middleware.SessionMiddleware',
+    'django.middleware.common.CommonMiddleware',
+    'django.middleware.csrf.CsrfViewMiddleware',
+    'django.contrib.auth.middleware.AuthenticationMiddleware',
+    'django.contrib.messages.middleware.MessageMiddleware',
+    'django.middleware.clickjacking.XFrameOptionsMiddleware',
+]
+
+ROOT_URLCONF = 'IslBackend.urls'
+
+TEMPLATES = [
+    {
+        'BACKEND': 'django.template.backends.django.DjangoTemplates',
+        'DIRS': [],
+        'APP_DIRS': True,
+        'OPTIONS': {
+            'context_processors': [
+                'django.template.context_processors.debug',
+                'django.template.context_processors.request',
+                'django.contrib.auth.context_processors.auth',
+                'django.contrib.messages.context_processors.messages',
+            ],
+        },
+    },
+]
+
+WSGI_APPLICATION = 'IslBackend.wsgi.application'
+
+
+# Database
+# https://docs.djangoproject.com/en/4.1/ref/settings/#databases
+
+DATABASES = {
+    'default': {
+        'ENGINE': 'django.db.backends.sqlite3',
+        'NAME': BASE_DIR / 'db.sqlite3',
+    }
+}
+
+
+# Password validation
+# https://docs.djangoproject.com/en/4.1/ref/settings/#auth-password-validators
+
+AUTH_PASSWORD_VALIDATORS = [
+    {
+        'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
+    },
+    {
+        'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
+    },
+    {
+        'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
+    },
+    {
+        'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
+    },
+]
+
+
+# Internationalization
+# https://docs.djangoproject.com/en/4.1/topics/i18n/
+
+LANGUAGE_CODE = 'en-us'
+
+TIME_ZONE = 'UTC'
+
+USE_I18N = True
+
+USE_TZ = True
+
+
+# Static files (CSS, JavaScript, Images)
+# https://docs.djangoproject.com/en/4.1/howto/static-files/
+
+STATIC_URL = 'static/'
+
+# Default primary key field type
+# https://docs.djangoproject.com/en/4.1/ref/settings/#default-auto-field
+
+DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'

IslBackend/urls.py

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+"""IslBackend URL Configuration
+
+The `urlpatterns` list routes URLs to views. For more information please see:
+    https://docs.djangoproject.com/en/4.1/topics/http/urls/
+Examples:
+Function views
+    1. Add an import:  from my_app import views
+    2. Add a URL to urlpatterns:  path('', views.home, name='home')
+Class-based views
+    1. Add an import:  from other_app.views import Home
+    2. Add a URL to urlpatterns:  path('', Home.as_view(), name='home')
+Including another URLconf
+    1. Import the include() function: from django.urls import include, path
+    2. Add a URL to urlpatterns:  path('blog/', include('blog.urls'))
+"""
+from django.contrib import admin
+from django.urls import path
+from api import views
+
+urlpatterns = [
+    path('admin/', admin.site.urls),
+    path('predict/', views.predict, name='predict'),
+    path('predictV2/', views.predictV2, name='predictV2'),
+    path('form/',views.form_view,name='form_view'),
+]

IslBackend/wsgi.py

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+"""
+WSGI config for IslBackend project.
+
+It exposes the WSGI callable as a module-level variable named ``application``.
+
+For more information on this file, see
+https://docs.djangoproject.com/en/4.1/howto/deployment/wsgi/
+"""
+
+import os
+
+from django.core.wsgi import get_wsgi_application
+
+os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'IslBackend.settings')
+
+application = get_wsgi_application()

Pipfile

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+[[source]]
+url = "https://pypi.org/simple"
+verify_ssl = true
+name = "pypi"
+
+[packages]
+django = "*"
+django-cors-headers = "*"
+
+[dev-packages]
+
+[requires]
+python_version = "*"

Pipfile.lock

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+{
+    "_meta": {
+        "hash": {
+            "sha256": "823916835b8992d22fb0ab87787f2d151ee7815263c825a62892056c565f2a05"
+        },
+        "pipfile-spec": 6,
+        "requires": {
+            "python_version": "*"
+        },
+        "sources": [
+            {
+                "name": "pypi",
+                "url": "https://pypi.org/simple",
+                "verify_ssl": true
+            }
+        ]
+    },
+    "default": {
+        "asgiref": {
+            "hashes": [
+                "sha256:89b2ef2247e3b562a16eef663bc0e2e703ec6468e2fa8a5cd61cd449786d4f6e",
+                "sha256:9e0ce3aa93a819ba5b45120216b23878cf6e8525eb3848653452b4192b92afed"
+            ],
+            "markers": "python_version >= '3.7'",
+            "version": "==3.7.2"
+        },
+        "django": {
+            "hashes": [
+                "sha256:7e4225ec065e0f354ccf7349a22d209de09cc1c074832be9eb84c51c1799c432",
+                "sha256:860ae6a138a238fc4f22c99b52f3ead982bb4b1aad8c0122bcd8c8a3a02e409d"
+            ],
+            "index": "pypi",
+            "version": "==4.2.4"
+        },
+        "django-cors-headers": {
+            "hashes": [
+                "sha256:9ada212b0e2efd4a5e339360ffc869cb21ac5605e810afe69f7308e577ea5bde",
+                "sha256:f9749c6410fe738278bc2b6ef17f05195bc7b251693c035752d8257026af024f"
+            ],
+            "index": "pypi",
+            "version": "==4.2.0"
+        },
+        "sqlparse": {
+            "hashes": [
+                "sha256:5430a4fe2ac7d0f93e66f1efc6e1338a41884b7ddf2a350cedd20ccc4d9d28f3",
+                "sha256:d446183e84b8349fa3061f0fe7f06ca94ba65b426946ffebe6e3e8295332420c"
+            ],
+            "markers": "python_version >= '3.5'",
+            "version": "==0.4.4"
+        },
+        "tzdata": {
+            "hashes": [
+                "sha256:11ef1e08e54acb0d4f95bdb1be05da659673de4acbd21bf9c69e94cc5e907a3a",
+                "sha256:7e65763eef3120314099b6939b5546db7adce1e7d6f2e179e3df563c70511eda"
+            ],
+            "markers": "sys_platform == 'win32'",
+            "version": "==2023.3"
+        }
+    },
+    "develop": {}
+}

api/admin.py

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+from django.contrib import admin
+
+# Register your models here.

api/apps.py

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+from django.apps import AppConfig
+
+
+class ApiConfig(AppConfig):
+    default_auto_field = 'django.db.models.BigAutoField'
+    name = 'api'

api/mlModel/CNN.h5

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+version https://git-lfs.github.com/spec/v1
+oid sha256:9f24004bbb6659063d9e0f4262f7c51ebd20f164d13b1587d33baf32bd403343
+size 41237590

api/mlModel/model.h5

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+version https://git-lfs.github.com/spec/v1
+oid sha256:edb19be53a4988bc33fd49e1782975b39eb9b8d2d3fb495fb246e62356bc1ccf
+size 2344628

api/mlModel/model2.0.h5

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+version https://git-lfs.github.com/spec/v1
+oid sha256:c7485d1d5ea519da8245db4f522978fae66c90dc7d2a1a5ba2e7ec4b862fcf19
+size 18612080

api/models.py

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+from django.db import models
+
+# Create your models here.

api/templates/predict.html

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+<form method="post" enctype="multipart/form-data">
+  {% csrf_token %}
+  <input type="file" name="image">
+  <button type="submit">Predict</button>
+</form>

api/tests.py

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+from django.test import TestCase
+
+# Create your tests here.

api/views.py

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+from django.shortcuts import render
+from django.http import JsonResponse
+import tensorflow as tf
+import tensorflow_hub as hub
+from tensorflow import keras
+from PIL import Image,ImageOps
+import numpy as np
+import cv2 as cv
+from tensorflow.keras import preprocessing
+from tensorflow.keras.models import load_model
+from tensorflow.keras.activations import softmax
+from sklearn.preprocessing import OneHotEncoder
+import os
+import h5py
+from django.views.decorators.csrf import csrf_exempt
+
+model = tf.keras.models.load_model('api/mlModel/model.h5')
+shape = ((50,50,3))
+model = tf.keras.Sequential([hub.KerasLayer(model,input_shape=shape)])
+
+modelV2 = tf.keras.models.load_model('api/mlModel/model2.0.h5')
+
+@csrf_exempt 
+def predict(request):
+    if request.method == 'POST':
+        
+        #image = Image.open("api/mlModel/0.jpg")
+
+        # Get the image from the request
+        print(request.FILES['image'])
+        image = Image.open(request.FILES['image'])
+
+        # Preprocess the image
+        
+        test_image = image.resize((50,50))
+        test_image = preprocessing.image.img_to_array(test_image)
+        test_image = test_image / 255
+        test_image = np.expand_dims(test_image, axis =0)
+        class_names = ['1','2','3' ,'4', '5', '6' ,'7' ,'8' ,'9' ,'A' ,'B' ,'C' ,'D' ,'E' ,'F', 'G', 'H', 'I', 'J', 'K' ,'L' ,'M', 'N', 'O' ,'P' ,'Q', 'R' ,'S', 'T', 'U' ,'V' ,'W' ,'X' ,'Y' ,'Z']
+
+        # Make a prediction
+        predictions = model.predict(test_image)
+        scores = tf.nn.softmax(predictions[0])
+        scores = scores.numpy()
+        image_class = class_names[np.argmax(scores)]
+        print(image_class)
+
+        return JsonResponse({'prediction': image_class})
+    
+    else:
+        return render(request,'predict.html')
+
+    
+# Create your views here.
+
+def form_view(request):
+    return render(request,'predict.html')
+
+@csrf_exempt 
+def predictV2(request):
+    if request.method == 'POST':
+        
+        #image = Image.open("api/mlModel/0.jpg")
+
+        # Get the image from the request
+        print(request.FILES['image'])
+        #image1 = Image.open(request.FILES['image'])
+        #img = cv.imread(Image.open(request.FILES['image']))
+        img = cv.imdecode(np.fromstring(request.FILES['image'].read(), np.uint8), cv.IMREAD_UNCHANGED)
+        # Preprocess the image
+        
+        resized_img = cv.resize(img, (250, 250), interpolation=cv.INTER_CUBIC)
+        resized_img.shape
+        #plt.imshow(resized_img)
+        img = resized_img
+        pred = modelV2.predict(x = np.array(img).reshape(-1,250,250,3)).flatten()
+        
+        enc = OneHotEncoder()
+        enc.fit([['6'],
+                ['K'],
+                ['L'],
+                ['R'],
+                ['V'],
+                ['3'],
+                ['F'],
+                ['M'],
+                ['J'],
+                ['0'],
+                ['9'],
+                ['U'],
+                ['8'],
+                ['P'],
+                ['W'],
+                ['Q'],
+                ['N'],
+                ['E'],
+                ['Y'],
+                ['H'],
+                ['1'],
+                ['X'],
+                ['C'],
+                ['G'],
+                ['5'],
+                ['O'],
+                ['S'],
+                ['B'],
+                ['2'],
+                ['7'],
+                ['D'],
+                ['T'],
+                ['4'],
+                ['I'],
+                ['A'],
+                ['Z']])
+        out = enc.inverse_transform(pred.reshape(1,-1))
+        print(out[0][0])
+
+
+        return JsonResponse({'prediction': out[0][0]})
+    
+    else:
+        return render(request,'predict.html')

manage.py

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+#!/usr/bin/env python
+"""Django's command-line utility for administrative tasks."""
+import os
+import sys
+
+
+def main():
+    """Run administrative tasks."""
+    os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'IslBackend.settings')
+    try:
+        from django.core.management import execute_from_command_line
+    except ImportError as exc:
+        raise ImportError(
+            "Couldn't import Django. Are you sure it's installed and "
+            "available on your PYTHONPATH environment variable? Did you "
+            "forget to activate a virtual environment?"
+        ) from exc
+    execute_from_command_line(sys.argv)
+
+
+if __name__ == '__main__':
+    main()