def font_load(idx):
font_data = PickleHelper.load_pickle(
path="/mnt/SharedData/Development/Personal_Dev/Machine-Learning/Data/Font data/",
name = fonts_pkl[idx])
train_xdata = np.array(font_data[0])
#train_xdata = np.reshape(font_data[0], (-1, 28, 28))
train_ydata = np.array([i for i in range(0, len(train_xdata))])
return train_xdata, train_ydata
nabla_w[-l] = np.dot(delta, activations[-l - 1].transpose())
return (nabla_b, nabla_w)
def cost_derivative(self, output_activations, y):
return (output_activations - y)
def evaluate(self, test_data):
test_results = [(np.argmax(self.feedforward(x)), y)
for (x, y) in test_data]
return sum(int(x == y) for (x, y) in test_results)
if __name__ == "__main__":
train_set, valid_set, test_set = PickleHelper.load_pickle(path="./",
name="mnist.pkl")
def vectorized_result(j):
e = np.zeros((10, 1))
e[j] = 1.0
return e
train_x = [np.reshape(x, (784, 1)) for x in train_set[0]]
train_y = [vectorized_result(y) for y in train_set[1]]
test_x = [np.reshape(x, (784, 1)) for x in test_set[0]]
#print(np.shape(train_x), np.shape(train_y))
#print(np.max(train_x[0]))
import matplotlib.pyplot as plt
def wrangling1(self):
''' # # face image to pickle
features, labels = self.img2numpy_array(self.dir_path)
PickleHelper.save_to_pickle(save_dir, "faces-32x32-features.pkl", features)
PickleHelper.save_to_pickle(save_dir, "faces-32x32-labels.pkl", labels)
'''
# Load pickle data
feature1 = PickleHelper.load_pickle(path="../../Data/Face/",
name="faces-32x32-features.pkl")
feature2 = PickleHelper.load_pickle(
path="../../Data/Objects/cifar-100-python/", name="train")[b'data']
# Data wragline for concatenating face and cifar dataset
# # Normalization for face images
new_feature = []
label_landmark = [
] # for the center of face. [class (face:0, none:1), x, y]
for f in tqdm(feature1):
#f_gray = self.bgr2gray(f)
f_norm = ImgFunctions.scailing(f, new_min=0, new_max=1)
#print("feature1 < min: {0} | max: {1} >".format(np.min(f_norm), np.max(f_norm)))
new_feature.append(f_norm)
label_landmark.append([0, 16., 16.])
feature1 = new_feature
# # Change channel of image to the last dimension
feature2 = np.reshape(feature2, (-1, 3, 32, 32))
feature2 = np.moveaxis(feature2, 1, 3)
# # Normalization for object images
new_feature = []
for f in tqdm(feature2):
#f_gray = self.bgr2gray(f)
f_norm = ImgFunctions.scailing(f, new_min=0, new_max=1)
#print("feature1 < min: {0} | max: {1} >".format(np.min(f_norm), np.max(f_norm)))
new_feature.append(ImgFunctions.scailing(f_norm))
label_landmark.append([1, None, None])
feature2 = new_feature
features = np.vstack([feature1, feature2])
# For simple classification [1 (face), 2 (none)]
label1 = np.ones(len(feature1), dtype=np.float32)
label2 = np.ones(len(feature2), dtype=np.float32) * 2
labels = np.hstack([label1, label2])
# # shuffle the dataset
shuffle_idx = np.arange(len(features))
np.random.shuffle(shuffle_idx)
features = features[shuffle_idx]
labels = labels[shuffle_idx]
label_landmark = np.array(label_landmark)
label_landmark = label_landmark[shuffle_idx]
print("Data shape: {0}, Landmark shape: {1}".format(
features.shape, labels.shape))
#print("Data shape: {0}, Landmark shape: {1}".format(features.shape, label_landmark.shape))
labels = self.one_hot_encoding(labels)
#print(labels[:10])
PickleHelper.save_to_pickle(save_dir,
"faces-obj-32x32-features-norm.pkl",
features)
PickleHelper.save_to_pickle(save_dir, "faces-obj-32x32-labels.pkl",
labels)
def wrangling_augmentation(self):
features = PickleHelper.load_pickle(
path="../../Data/Face/Face-Obj-Augment/",
name="faces-obj-32x32-features-norm.pkl")
labels = PickleHelper.load_pickle(
path="../../Data/Face/Face-Obj-Augment/",
name="faces-obj-32x32-labels.pkl")
#labels = PickleHelper.load_pickle(path = "../../Data/Face/", name = "faces-obj-32x32-labels-landmark.pkl")
print("Data shape: {0}, Landmark shape: {1}".format(
features.shape, labels.shape))
margin = list(range(-12, 13))
for idx in tqdm(range(len(features))):
# IMAGE ZOOM AND ZOOM OUT
if np.random.randint(2) == 1:
scale = np.random.randint(16, 48)
resized_img = ImgFunctions.resize_img(features[idx],
size=(scale, scale))
#print(resized_img.shape, " | ", scale)
padding = int((32 - scale) / 2)
if padding >= 0:
resized_img = cv2.copyMakeBorder(resized_img,
int((32 - scale) / 2),
int((32 - scale) / 2),
int((32 - scale) / 2),
int((32 - scale) / 2),
cv2.BORDER_CONSTANT,
value=[0, 0, 0])
features[idx] = ImgFunctions.resize_img(resized_img)
else:
resized_img = resized_img[int((scale - 32) /
2):int((scale - 32) / 2) +
32,
int((scale - 32) /
2):int((scale - 32) / 2) +
32]
features[idx] = resized_img
'''
# IMAGE TRANSLATE BY MARGIN 8
if labels[idx][0] == 0: # if label is for face
margin_rnd_idx = np.random.randint(len(margin))
features[idx] = ImgFunctions.translation(features[idx], margin[margin_rnd_idx], margin[margin_rnd_idx])
labels[idx][1] = labels[idx][1]+margin[margin_rnd_idx]
labels[idx][2] = labels[idx][2]+margin[margin_rnd_idx]
'''
'''
import matplotlib.pyplot as plt
plt.imshow(features[idx])
print(labels[idx])
plt.show()
'''
PickleHelper.save_to_pickle(
save_dir, "augment_faces-obj-32x32-features-norm.pkl", features)
PickleHelper.save_to_pickle(
save_dir, "augment_faces-obj-32x32-labels-landmark.pkl", labels)
from pickle_helper import PickleHelper
from network import Network
import matplotlib.pyplot as plt
import numpy as np
from tqdm import tqdm
train_set, valid_set, test_set = PickleHelper.load_pickle(path="../Data/",
name="mnist.pkl")
W, B = PickleHelper.load_pickle(path="./", name="minist_one_layer.pkl")
train_x = [np.reshape(x, (784, 1)) for x in train_set[0]]
train_x = np.array(train_x)
test_x = [np.reshape(x, (784, 1)) for x in test_set[0]]
test_x = np.array(test_x)
ann = Network([784, 30, 10])
ann.weights = W
ann.biases = B
print np.argmax(ann.feedforward(train_x[10]))
fig, ax = plt.subplots(1, 5, figsize=(10, 2))
#plt.show()
'''
indice = np.random.choice(len(test_x), size=5)
print indice
test_x = np.array(test_x)
test_x[indice]
'''
for iter in tqdm(range(100)):