我已尝试使用imageDataGenerator进行以下CNN的数据增强，而我需要训练5种不同的图像类。当我运行此代码时，发生以下错误：
"Traceback (most recent call last):
File "", line 1, in runfile('E:/Final Project/FinalProject/AIModule/cnn.py', wdir='E:/Final Project/FinalProject/AIModule')
File "C:\Users\Lakwin\Anaconda3\lib\site-packages\spyder\utils\site\sitecustomize.py", line 705, in runfile execfile(filename, namespace)
File "C:\Users\Lakwin\Anaconda3\lib\site-packages\spyder\utils\site\sitecustomize.py", line 102, in execfile exec(compile(f.read(), filename, 'exec'), namespace)
File "E:/Final Project/FinalProject/AIModule/cnn.py", line 166, in class_mode='categorical')
File "C:\Users\Lakwin\Anaconda3\lib\site-packages\keras_preprocessing\image.py", line 1013, in flow_from_directory interpolation=interpolation)
File "C:\Users\Lakwin\Anaconda3\lib\site-packages\keras_preprocessing\image.py", line 1857, in init interpolation)
File "C:\Users\Lakwin\Anaconda3\lib\site-packages\keras_preprocessing\image.py", line 1453, in common_init self.target_size = tuple(target_size)
TypeError: 'int' object is not iterable"
我该如何解决此错误，以及应该在此代码中进行哪些更改？
import cv2
import numpy as np
import os
from random import shuffle
from tqdm import tqdm
#from tensorflow import keras
#from tensorflow.contrib import lite
from keras.preprocessing.image import ImageDataGenerator
from keras.models import Sequential
TRAIN_DIR = 'train'
VALID_DIR = 'validate'
TEST_DIR = 'test'
IMG_SIZE = 28
LR = 1e-3
train_samples = 250
valdate_samples = 250
epochs = 5
batch_size = 10
MODEL_NAME = 'snakes-{}-{}.model'.format(LR, '2conv-basic')
def label_img(img):
print("\nImage = ",img)
print("\n",img.split('.')[-2])
temp_name= img.split('.')[-2]
#print("\n",temp_name[0:3])
#temp_name=temp_name[0:3]
print("\n",temp_name[:1])
temp_name=temp_name[:1]
#word_label = img.split('.')[-3]
word_label = temp_name
# word_label = img[0]
if word_label == 'A': return [0,0,0,0,1]
elif word_label == 'B': return [0,0,0,1,0]
elif word_label == 'C': return [0,0,1,0,0]
elif word_label == 'D': return [0,1,0,0,0]
elif word_label == 'E' : return [1,0,0,0,0]
def create_train_data():
training_data = []
for img in tqdm(os.listdir(TRAIN_DIR)):
label = label_img(img)
path = os.path.join(TRAIN_DIR,img)
img = cv2.imread(path,cv2.IMREAD_GRAYSCALE)
img = cv2.resize(img, (IMG_SIZE,IMG_SIZE))
training_data.append([np.array(img),np.array(label)])
shuffle(training_data)
np.save('train_data.npy', training_data)
return training_data
def create_validate_data():
validating_data = []
for img in tqdm(os.listdir(TRAIN_DIR)):
label = label_img(img)
path = os.path.join(VALID_DIR,img)
img = cv2.imread(path,cv2.IMREAD_GRAYSCALE)
img = cv2.resize(img, (IMG_SIZE,IMG_SIZE))
validating_data.append([np.array(img),np.array(label)])
shuffle(validating_data)
np.save('validate_data.npy', validating_data)
return validating_data
def process_test_data():
testing_data = []
for img in tqdm(os.listdir(TEST_DIR)):
path = os.path.join(TEST_DIR,img)
img_num = img.split('.')[0]
img = cv2.imread(path,cv2.IMREAD_GRAYSCALE)
img = cv2.resize(img, (IMG_SIZE,IMG_SIZE))
testing_data.append([np.array(img), img_num])
shuffle(testing_data)
np.save('test_data.npy', testing_data)
return testing_data
train_data = create_train_data()
validate_data = create_validate_data()
import tflearn
from tflearn.layers.conv import conv_2d, max_pool_2d
from tflearn.layers.core import input_data, dropout, fully_connected
from tflearn.layers.estimator import regression
import tensorflow as tf
tf.reset_default_graph()
convnet = input_data(shape=[None, IMG_SIZE, IMG_SIZE, 1], name='input')
convnet = conv_2d(convnet, 32, 5, activation='relu')
convnet = max_pool_2d(convnet, 5)
convnet = conv_2d(convnet, 64, 5, activation='relu')
convnet = max_pool_2d(convnet, 5)
convnet = conv_2d(convnet, 128, 5, activation='relu')
convnet = max_pool_2d(convnet, 5)
convnet = conv_2d(convnet, 64, 5, activation='relu')
convnet = max_pool_2d(convnet, 5)
convnet = conv_2d(convnet, 32, 5, activation='relu')
convnet = max_pool_2d(convnet, 5)
convnet = fully_connected(convnet, 1024, activation='relu')
convnet = dropout(convnet, 0.8)
convnet = fully_connected(convnet, 5, activation='softmax')
convnet = regression(convnet, optimizer='adam', learning_rate=LR, loss='categorical_crossentropy', name='targets')
model = tflearn.DNN(convnet, tensorboard_dir='log')
if os.path.exists('{}.meta'.format(MODEL_NAME)):
model.load(MODEL_NAME)
print('model loaded!')
#train = train_data[:-500]
#test = train_data[-500:]
#train = train_data[:-200]
#test = train_data[-200:]
train = train_data[0:]
validate = validate_data[0:]
X = np.array([i[0] for i in train]).reshape(-1,IMG_SIZE,IMG_SIZE,1)
Y = [i[1] for i in train]
#test_x = np.array([i[0] for i in test]).reshape(-1,IMG_SIZE,IMG_SIZE,1)
#test_y = [i[1] for i in test]
validate_x = np.array([i[0] for i in validate]).reshape(-1,IMG_SIZE,IMG_SIZE,1)
validate_y = [i[1] for i in validate]
model.fit({'input': X}, {'targets': Y}, n_epoch=epochs, validation_set=({'input': validate_x}, {'targets': validate_y}),
snapshot_step=500, show_metric=True, run_id=MODEL_NAME)
train_datagen = ImageDataGenerator(
rescale=1. / 255,
shear_range=0.2,
zoom_range=0.2,
horizontal_flip=True)
validaton_datagen = ImageDataGenerator(rescale=1. / 255)
train_generator = train_datagen.flow_from_directory('data/train',
target_size=(IMG_SIZE),
batch_size=batch_size,
class_mode='categorical')
validation_generator = validaton_datagen.flow_from_directory('data/validation',
target_size=(IMG_SIZE),
batch_size=batch_size,
class_mode='categorical')
model.fit_generator(train_generator,
steps_per_epoch=25,
epochs=epochs,
validation_data=validation_generator,
validation_steps=25)
model.save(MODEL_NAME)
#keras_file = "linear.h5"
#keras.models.save_model(model,keras_file)
最佳答案
您必须将整数元组作为target_size传递给train_datagen.flow_from_directory() method, actually a method of keras.preprocessing.image.ImageDataGenerator（）实例的方法，但是您传递了一个整数，一维大小：
target_size=(IMG_SIZE)
那是关于您的错误消息。
从Keras Image Preprocessing
keras.preprocessing.image.ImageDataGenerator()：target_size：
整数
(height, width)的元组，默认值：
(256, 256)。所有图像的尺寸
找到的将被调整大小。
您必须执行以下操作：
train_generator = train_datagen.flow_from_directory('data/train',
target_size=(IMG_SIZE, IMG_SIZE),
batch_size=batch_size,
class_mode='categorical')
validation_generator = validaton_datagen.flow_from_directory('data/validation',
target_size=(IMG_SIZE, IMG_SIZE),
batch_size=batch_size,
class_mode='categorical')
关于python - 在Keras-Python中使用ImageDataGenerator进行数据增强，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/53568780/