eval.py 文件源码

python
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项目:tfPhotoClassifier 作者: daiz713 项目源码 文件源码
def distorted_inputs (tfrecord_file_paths=[]):
    fqueue = tf.train.string_input_producer(tfrecord_file_paths)
    reader = tf.TFRecordReader()
    key, serialized_example = reader.read(fqueue)
    features = tf.parse_single_example(serialized_example, features={
        'label': tf.FixedLenFeature([], tf.int64),
        'image': tf.FixedLenFeature([], tf.string)
    })
    image = tf.image.decode_jpeg(features['image'], channels=size['depth'])
    image = tf.cast(image, tf.float32)
    image.set_shape([size['width'], size['height'], size['depth']])

    min_fraction_of_examples_in_queue = 0.4
    min_queue_examples = int(cifar10.NUM_EXAMPLES_PER_EPOCH_FOR_EVAL * min_fraction_of_examples_in_queue)

    images, labels = tf.train.shuffle_batch(
        [tf.image.per_image_whitening(image), tf.cast(features['label'], tf.int32)],
        batch_size=BATCH_SIZE,
        capacity=min_queue_examples + 3 * BATCH_SIZE,
        min_after_dequeue=min_queue_examples
    )

    images = tf.image.resize_images(images, size['input_width'], size['input_height'])
    tf.image_summary('images', images)
    return images, labels
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