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keras中ImageDataGenerator用法
阅读量:112 次
发布时间:2019-02-26

本文共 1556 字,大约阅读时间需要 5 分钟。

ImageDataGenerator?Keras.preprocessing.image??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????

??????

  • featurewise_center?????????????????????????????????????
  • samplewise_center??????????????????????????????????
  • featurewise_std_normalization?????????????????????????????
  • samplewise_std_normalization?????????????????????????????????
  • zca_whitening????????????ZCA??????????????
  • rotation_range????????????????????????0?180??
  • width_shift_range????????????????????0?1?
  • height_shift_range????????????????????0?1?
  • shear_range?????????????????
  • zoom_range??????????????????????[lower, upper]????????????????
  • channel_shift_range?????????????????
  • fill_mode?????????constant???nearest???reflect???wrap???????????????????????
  • cveta????????????constant????????????
  • horizontal_flip????????????????
  • vertical_flip????????????????
  • rescale???????????????????????????????0?1?
  • preprocessing_function?????????????????????????????
  • data_format?????????????????????channel_first???channel_last??????

????

train_datagen = ImageDataGenerator(    preprocessing_function=preprocess_input,    rotation_range=30,    width_shift_range=0.2,    height_shift_range=0.2,    shear_range=0.2,    zoom_range=0.2,    horizontal_flip=True)

??????

  • shear_range??????????????x?y???????????????????????????
  • zoom_range????????????????0?1????????1????????????????????????????
  • fill_mode????????????nearest??????????????????????????????constant?????????reflect???????wrap????????

??????ImageDataGenerator???????????????????????????????????

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