问题描述
这是我的数据。它有7张图片:
我使用autokeras
进行训练:
import tensorflow as tf
import numpy as np
import autokeras as ak
from tensorflow.keras.preprocessing import image
BATCH_SIZE = 32
IMG_HEIGHT = 224
IMG_WIDTH = 224
train_data_dir = "E:\\DemoTensorflow\\NhanDienDoiTuong\\Data\\Traintest"
def preprocess(img):
img = image.array_to_img(img,scale=False)
img = img.resize((IMG_WIDTH,IMG_HEIGHT))
img = image.img_to_array(img)
return img / 255.0
image_generator = tf.keras.preprocessing.image.ImageDataGenerator(
rescale=1.0 / 255,horizontal_flip=True,validation_split=0.2,preprocessing_function=preprocess,)
train_generator = image_generator.flow_from_directory(
directory=train_data_dir,batch_size=BATCH_SIZE,shuffle=True,target_size=(IMG_HEIGHT,IMG_WIDTH),subset="training",)
val_generator = image_generator.flow_from_directory(
directory=train_data_dir,# class_mode="categorical",subset="validation",)
def callable_iterator(generator):
for img_batch,targets_batch in generator:
yield img_batch,targets_batch
train_dataset = tf.data.Dataset.from_generator(
lambda: callable_iterator(train_generator),output_types=(tf.float32,tf.int8),output_shapes=(
tf.TensorShape([None,224,3]),tf.TensorShape([None,2]),),)
val_dataset = tf.data.Dataset.from_generator(lambda: callable_iterator(val_generator),tf.float32))
clf = ak.ImageClassifier(max_trials=10)
clf.fit(train_dataset,epochs=10)
print(clf.evaluate(val_dataset))
结果:执行时无法完成:
它在以下命令处挂起很长时间:StreamExecutor device (0): Host,Default Version
为什么不能完成我的训练?
我的操作系统是Win7,python 3.8,tensorflow 2.3,autokeras 1.0.8
解决方法
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