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December 6, 2019 10:35
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Keras only 2x pixel-shuffle / sub_pixel_conv
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| def sub_pixel_conv(inputs, height, width, out_channels): #keras version of 2x pixel shuffle | |
| x = inputs | |
| x = SeparableConv2D(out_channels * 4, kernel_size = 9, depth_multiplier = 1, activation = 'tanh', padding = 'same')(x) | |
| x = Reshape((height, width, out_channels, 2, 2))(x) | |
| x = Permute((3, 2, 4, 1, 5))(x) | |
| x = Reshape((out_channels, height * 2, height * 2))(x) | |
| x = Permute((2, 3, 1))(x) | |
| return x |
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like tf.depth_to_space