Suggest to add RandomApply in gluon's transforms

[gengyanlei]

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[szha]

what's the definition of RandomApply?

[wkcn]

There are multiple transform methods(lists), and choose one randomly.

[gengyanlei]

https://pytorch.org/docs/1.1.0/torchvision/transforms.html#transforms-on-pil-image
Apply randomly a list of transformations with a given probability！

[gengyanlei]

比如color_transform，它会让图像值分布变化，但是我想让网络也学习到原始图像值分布，那么就需要一个概率值，对这个tranform发生概率进行设置！
For example, color_transform will change the distribution of image values, but I want the network to learn the distribution of the original image values, so we need a probability value to set the probability of this tranform occurrence!