Pytorch 数组反转报错 ValueError some of the strides of a given numpy array are negative

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本文介绍在使用PyTorch进行图像处理时遇到的“some of the strides of a given numpy array are negative”错误，并提供了一个简单有效的解决方案，即通过使用.copy()方法来避免负步长问题。

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我在跑以下代码时出现错误

pic = pic[:,:, ::-1,:]
pic = torch.from_numpy(pic.transpose([3,0,1,2]))
## ValueError: some of the strides of a given numpy array are negative

解决方案

pic = pic[:,:, ::-1,:].copy()  #加上.copy()

具体可参考：discuss.pytorch

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