def main():
# construct the argument parser and parse the arguments
ap = argparse.ArgumentParser()
ap.add_argument("-d", "--dataset", required=True,
help="path to input dataset of images")
ap.add_argument("-m", "--model", required=True,
help="path to output trained model")
ap.add_argument("-l", "--label-bin", required=True,
help="path to output label binarizer")
ap.add_argument("-p", "--plot", required=True,
help="path to output accuracy/loss plot")
args = vars(ap.parse_args())
# initialize the data and labels
print("[INFO] loading images...")
# grab the image paths and randomly shuffle them
image_path = args["dataset"] + "/train/"
data, labels = split(image_path)
(trainX, valX, trainY, valY) = train_test_split(data, labels, test_size=0.25)
# convert the labels from integers to vectors (for 2-class, binary
# classification you should use Keras' to_categorical function
# instead as the scikit-learn's LabelBinarizer will not return a
# vector)
lb = LabelBinarizer()
trainY = lb.fit_transform(trainY)
valY = lb.transform(valY)
# construct the image generator for data augmentation
aug = ImageDataGenerator(rotation_range=30, width_shift_range=0.1,
height_shift_range=0.1, shear_range=0.2, zoom_range=0.2,
horizontal_flip=True, fill_mode="nearest")
# base_model = InceptionV3(input_shape=(HEIGHT, WIDTH, 3),
# weights = 'imagenet',
# include_top = False,
# pooling = 'avg')
# base_model = InceptionResNetV2(input_shape=(HEIGHT, WIDTH, 3),
# weights = 'imagenet',
# include_top = False,
# pooling = 'avg')
base_model = Xception(input_shape=(HEIGHT, WIDTH, 3),
weights = 'imagenet',
include_top = False,
pooling = 'avg')
x = base_model.output
x = Dense(1024, activation="relu")(x)
x = Dropout(DROPOUT)(x)
predictions = Dense(6, activation="softmax")(x)
model = Model(inputs=base_model.input, outputs=predictions)
# initialize the model and optimizer
print("[INFO] training network...")
opt = SGD(lr=INIT_LR, momentum = 0.9, clipnorm = 5.)
model.compile(loss="categorical_crossentropy", optimizer=opt, metrics=["accuracy"])
# saver = ModelCheckpoint("output/model.hdf5", verbose=1,
# save_best_only=True, monitor="val_acc",
# mode="max")
# reduce_lr = ReduceLROnPlateau(monitor="loss", factor=0.5,
# patience=5, verbose=1, min_lr=0.0001)
stopper = EarlyStopping(patience=5, verbose=1, monitor="val_acc", mode="max")
clr = CyclicLR(base_lr=INIT_LR, max_lr=0.005, step_size=8*len(trainX)//BS, mode='triangular2')
# train the network
H = model.fit_generator(aug.flow(trainX, trainY, batch_size=BS),
validation_data=(valX, valY), steps_per_epoch=len(trainX) // BS,
validation_steps=len(valX) // BS,
epochs=EPOCHS, callbacks=[stopper, clr])
##########################
## EVALUATE THE NETWORK ##
##########################
print("[INFO] evaluating network...")
image_path = args["dataset"] + "/test/"
testX, testY = split(image_path)
testY = lb.transform(testY)
predictions = model.predict(testX, batch_size=BS)
print(classification_report(testY.argmax(axis=1),
predictions.argmax(axis=1), target_names=lb.classes_))
print("Accuracy: {}".format(accuracy_score(testY.argmax(axis=1), predictions.argmax(axis=1))))
print(confusion_matrix(testY.argmax(axis=1), predictions.argmax(axis=1)))
# save the model and label binarizer to disk
print("[INFO] serializing network and label binarizer...")
model.save(args["model"])
f = open(args["label_bin"], "wb")
f.write(pickle.dumps(lb))
f.close()
print("[INFO] plotting and saving results...")
# plot the training loss and accuracy
N = np.arange(0, EPOCHS) if stopper.stopped_epoch == 0 else np.arange(0, stopper.stopped_epoch+1)
# Se não parou antes então stopper.stopped_epoch será 0
plt.style.use("ggplot")
plt.figure()
plt.plot(N, H.history["loss"], label="train_loss")
plt.plot(N, H.history["val_loss"], label="val_loss")
plt.plot(N, H.history["acc"], label="train_acc")
plt.plot(N, H.history["val_acc"], label="val_acc")
plt.title("Training Loss and Accuracy (Xception)")
plt.xlabel("Epoch #")
plt.ylabel("Loss/Accuracy")
plt.legend()
plt.savefig(args["plot"])
plot_confusion_matrix(lb.classes_, testY.argmax(axis=1), predictions.argmax(axis=1))
plt.style.use("ggplot")
plt.figure()
plt.plot(clr.history['lr'], clr.history['acc'])
plt.title("Training Learning Rate and Accuracy (Xception)")
plt.xlabel("Learning Rate")
plt.ylabel("Accuracy")
plt.legend()
plt.savefig("output/learning_rate_Xception.png")
print("Dropout: {} BS: {}".format(DROPOUT, BS))
print("[INFO] training network...")
#[CODE HERE] - fit model (1 line)
H = model.fit(trainX,
trainY,
validation_data=(testX, testY),
batch_size=32,
epochs=num_epocas,
verbose=1)
#[END CODE]
# evaluate the network
print("[INFO] evaluating network...")
predictions = model.predict(testX, batch_size=32)
print(
classification_report(testY.argmax(axis=1),
predictions.argmax(axis=1),
target_names=["cat", "dog", "panda"]))
# plot the training loss and accuracy
plt.style.use("ggplot")
plt.figure()
plt.plot(np.arange(0, num_epocas), H.history["loss"], label="train_loss")
plt.plot(np.arange(0, num_epocas), H.history["val_loss"], label="val_loss")
plt.plot(np.arange(0, num_epocas), H.history["acc"], label="train_acc")
plt.plot(np.arange(0, num_epocas), H.history["val_acc"], label="val_acc")
plt.title("Training Loss and Accuracy")
plt.xlabel("Epoch #")
plt.ylabel("Loss/Accuracy")
plt.legend()
plt.show()
# train the network
print("[INFO] training network...")
H = model.fit_generator(aug.flow(trainX_res, trainY_res, batch_size=BATCH_SIZE),
validation_data=(testX, testY),
epochs=EPOCHS,
callbacks=[
ModelCheckpoint('XXX.h5',
monitor='val_acc',
save_best_only=True)])
model.load_weights('XXX.h5')
predictions = model.predict(testX, batch_size=BATCH_SIZE)
print(confusion_matrix(testY.argmax(axis=1), predictions.argmax(axis=1)))
print(classification_report(testY.argmax(axis=1), predictions.argmax(axis=1), target_names=lb.classes_))
acc = H.history['acc']
val_acc = H.history['val_acc']
loss = H.history['loss']
val_loss = H.history['val_loss']
epochs = range(1, len(acc) + 1)
plt.plot(epochs, acc, 'b', label='Training accuracy')
plt.plot(epochs, val_acc, 'r', label='Validation accuracy')
plt.title('<Model>: Training and Validation accuracy')
plt.xlabel('Epochs')
plt.ylabel('Accuracy')
plt.legend()
loss="categorical_crossentropy",
metrics=['acc'])
model.fit(train_data,
train_target,
batch_size=128,
epochs=15,
verbose=1,
validation_split=0.2)
print('FF')
scores = model.evaluate(test_data, test_target, verbose=2)
print(scores)
y_pred = model.predict(test_data)
y_norm = np.stack([
to_categorical(np.asarray(x.argmax()), num_classes=4) for x in y_pred
])
print(classification_report(test_target, y_norm))
print('MCC: ', matthews_corrcoef(y_test, np.argmax(y_norm, axis=1)))
print("classes: 0-cy, 1-en, 2-ga, 3-gd")
print_cm(y_test, np.argmax(y_norm, axis=1))
# SVM
print('SVM')
svm = SVC(kernel='linear', C=1)
text_clf_svm = svm.fit(train_data, y_train)
y_pred = text_clf_svm.predict(test_data)
SVM_acc = np.mean(y_pred == y_test)
print("SVM accuracy ", SVM_acc)
model.compile(loss = 'binary_crossentropy',optimizer = adam ,metrics = ['accuracy'])
model.summary()
a,b = 0,2
model.fit(train_X,train_Y[:,a:b],batch_size = batch_size,epochs = 100,validation_data = (test_X,test_Y[:,a:b]))
scores = model.evaluate(test_X, test_Y[:,a:b], verbose=0)
print("%s: %.2f%%" % (model.metrics_names[1], scores[1]*100))
plot_model(model, to_file='model.png',show_shapes = True)
#saving the model
model.save('my_model_cSIN_tag')
doc_model.save('doc_model_cSIN')
pred = model.predict(test_X)
pred = pred.argmax(axis=1)
#printing the metrics
c_matrix = confusion_matrix(test_Y[:,a:b].argmax(axis=1),pred)
print(c_matrix)
accuracy = accuracy_score(test_Y[:,a:b].argmax(axis=1),pred)
print('Accuracy : ',accuracy)
#precision = true positive / total predicted positive(True positive + False positive)
#recall = true positive / total actual positive(True positive + False Negative)
print(classification_report(test_Y[:,a:b].argmax(axis=1),pred))
pickle_out = open("tokenizer.pickle","wb")
pickle.dump(tokenizer, pickle_out)
pickle_out.close()
import numpy as np
from keras.preprocessing import image
from keras.models import load_model
def predict(model, img):
x = image.img_to_array(img)
x = np.expand_dims(x, axis=0)
x = preprocess_input(x)
preds = model.predict(x)
print(preds)
return preds[0]
img = image.load_img('french_bulldog.jpg', target_size=(299, 299))
preds = predict(load_model(MODEL_FILE), img)
print(len(preds))
print(preds.argmax())
labels = (train_generator.class_indices)
labels = dict((v,k) for k,v in labels.items())
# labels
print(labels[preds.argmax()])
# !pip install keras-vis
from vis.utils import utils
from matplotlib import pyplot as plt
# %matplotlib inline
plt.rcParams['figure.figsize'] = (18, 6)
img1 = utils.load_img('Images/basenji/n02110806_1396.jpg', target_size=(224, 224))
cm = cm.astype('float') / cm.sum(axis=1)[:, np.newaxis]
print("Normalized confusion matrix")
else:
print('Confusion matrix, without normalization')
print(cm)
plt.imshow(cm, interpolation='nearest', cmap=cmap)
plt.title(title)
plt.colorbar()
tick_marks = np.arange(len(classes))
plt.xticks(tick_marks, classes, rotation=45)
plt.yticks(tick_marks, classes)
fmt = '.2f' if normalize else 'd'
thresh = cm.max() / 2.
for i, j in itertools.product(range(cm.shape[0]), range(cm.shape[1])):
plt.text(j, i, format(cm[i, j], fmt),
horizontalalignment="center",
color="white" if cm[i, j] > thresh else "black")
plt.ylabel('True label')
plt.xlabel('Predicted label')
plt.tight_layout()
predfinal = predictions.argmax(axis=1)
cm = confusion_matrix(test_labels, predfinal)
cm_plot_labels = ['akiec', 'bcc', 'bkl', 'df', 'mel','nv', 'vasc']
plot_confusion_matrix(cm, cm_plot_labels)
model.compile(loss = 'binary_crossentropy',optimizer = adam ,metrics = ['accuracy'])
#model.summary()
a,b = 0,4
model.fit(X[train],Y[train][:,a:b],batch_size = batch_size,epochs = 10,validation_data = (X[test],Y[test][:,a:b]))
scores = model.evaluate(X[test], Y[test][:,a:b], verbose=0)
print("%s: %.2f%%" % (model.metrics_names[1], scores[1]*100))
pred = model.predict(X[test])
final_probability_0 = pred[:,0]
final_probability_1 = pred[:,1]
final_probability_2 = pred[:,2]
final_probability_3 = pred[:,3]
for i in range(len(X[test])):
final_predicted_labels.append(pred.argmax(axis=1)[i])
final_probability_class0.append(final_probability_0[i])
final_probability_class1.append(final_probability_1[i])
final_probability_class2.append(final_probability_2[i])
final_probability_class3.append(final_probability_3[i])
c_matrix = confusion_matrix(Y[test][:,a:b].argmax(axis=1),pred.argmax(axis=1))
print(c_matrix)
print(classification_report(Y[test][:,a:b].argmax(axis=1),pred.argmax(axis=1)))
plot_model(model, to_file='model.png',show_shapes = True)
model.save('my_model_cSIN2_tag')
accuracy.append(accuracy_score(Y[test][:,a:b].argmax(axis=1),pred.argmax(axis=1)))
print(accuracy)
f1_scores.append(f1_score(Y[test][:,a:b].argmax(axis=1), pred.argmax(axis=1), average='macro'))
y_true = list(target_list)
print(y_true)
model.load_weights('/content/gdrive/My Drive/Syrus/weights_inception_full/cp-0030.ckpt')
path_test='/content/train_test/test'
for names in sorted(os.listdir(path_test)):
print(names)
img = image.load_img(os.path.join(path_test,names), target_size=(224, 224))
x = image.img_to_array(img)
x = np.expand_dims(x, axis=0)
x = preprocess_input(x)
preds = model.predict(x)
#print('Predicted:')
#print(preds)
y_classes = preds.argmax(axis=-1)
print(y_classes)
final.append(y_classes[0])
print(final)
score = accuracy_score(y_true, final)
print(score)
!pip install h5py
!pip install tensorflowjs
model.save('inception_v3_1.h5')
!mkdir model100
!tensorflowjs_converter --input_format keras inception_v3_1.h5 model100/
print("End training model")
end = time.time()
print(time.strftime("%H:%M:%S", time.gmtime(end - start)))
evaluateModelPerformance()
cm_plot_labels = []
for x in test_batches.class_indices:
cm_plot_labels.append(x)
predictions = model.predict(test_batches, steps=5, verbose=0)
test_labels = test_batches.classes
cm = confusion_matrix(test_labels, predictions.argmax(1))
plot_confusion_matrix(cm, cm_plot_labels)
#create coreml model
coreml_model = coremltools.converters.keras.convert(
model,
input_names='input_9',
image_input_names='input_9',
output_names='Identity',
class_labels=cm_plot_labels,
image_scale=1 / 255.0)
coreml_model.save('modelSzczecin.mlmodel')
for index, layer in enumerate(mobile.layers):