Commit 505acad0 authored by Gunasinghe M.D.'s avatar Gunasinghe M.D.

Delete cnn.py

parent 64316511
#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
@author: GUnasinghe M.D.
"""
# CNN classifier
# Building architecture of our CNN classifier
import keras
from keras.models import Sequential
from keras.layers import Convolution2D
from keras.layers import MaxPooling2D
from keras.layers import Flatten
from keras.layers import Dense
# Initialising the CNN
classifier = Sequential()
# Step - 1 Convolution
classifier.add(Convolution2D(
16, 3, 3, input_shape=(28, 28, 3), activation='relu'))
# Step - 2 Pooling
classifier.add(MaxPooling2D(pool_size=(2, 2)))
classifier.add(Convolution2D(32, 3, 3, activation='relu'))
classifier.add(MaxPooling2D(pool_size=(2, 2)))
# Step - 3 Flattening
classifier.add(Flatten())
# Step - 4 Full connection -> First layer input layer then hidden layer
# and last softmax layer
classifier.add(Dense(56, activation='relu', kernel_initializer='uniform'))
classifier.add(Dense(3, activation='softmax', kernel_initializer='uniform'))
# Compiling the CNN
classifier.compile(
optimizer='adam', loss='categorical_crossentropy', metrics=['accuracy'])
# Image Preprocessing
from keras.preprocessing.image import ImageDataGenerator
train_datagen = ImageDataGenerator(
rescale=1. / 255, shear_range=0.2, zoom_range=0.2, horizontal_flip=True)
test_datagen = ImageDataGenerator(rescale=1. / 255)
training_set = train_datagen.flow_from_directory(
'shapes/train', target_size=(28, 28), batch_size=1, class_mode='categorical')
#X_images, y_labels = training_set.filenames, training_set.classes
test_set = test_datagen.flow_from_directory(
'shapes/test', target_size=(28, 28), batch_size=1, class_mode='categorical')
# Logging the training of models
from keras.callbacks import CSVLogger, EarlyStopping
csv_logger = CSVLogger('log.csv', append=True, separator=';')
early_stopping_monitor = EarlyStopping(patience=5)
steps_per_epoch = len(training_set.filenames) # 300
validation_steps = len(test_set.filenames) # 90
model_info = classifier.fit_generator(training_set, steps_per_epoch=steps_per_epoch, epochs=25, validation_data=test_set,
validation_steps=validation_steps, callbacks=[csv_logger, early_stopping_monitor])
classifier.save("drawing_classification.h5")
# plot model history after each epoch
from visulization import plot_model_history
plot_model_history(model_info)
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