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batch = 2
rows = 3
cols = 4
depth = 5
block_size_height = 2
block_size_width = 3
padding_size_height_top = 1
padding_size_height_bottom = 2
padding_size_width_left = 3
padding_size_width_right = 2
out_batch = batch * block_size_height * block_size_width
out_rows = (int)((rows + padding_size_height_top + padding_size_height_bottom) / block_size_height)
out_cols = (int)((cols + padding_size_width_left + padding_size_width_right) / block_size_width)
input_table = [x for x in range(batch * rows * cols * depth)]
stride_b_in = rows * cols * depth
stride_h_in = cols * depth
stride_w_in = depth
output_table = [0 for x in range(out_batch * out_rows * out_cols * depth)]
stride_b_out = out_rows * out_cols * depth
stride_h_out = out_cols * depth
stride_w_out = depth
for b in range(batch):
for h in range(rows + padding_size_height_top + padding_size_height_bottom):
for w in range(cols + padding_size_width_left + padding_size_width_right):
for d in range(depth):
out_d = d;
out_h = (int)(h / block_size_height);
out_w = (int)(w / block_size_width);
out_b = b + ((h % block_size_height) * block_size_width + w % block_size_width) * batch;
if ((h >= padding_size_height_top) and (h < (rows + padding_size_height_top)) and (w >= padding_size_width_left) and (w < (cols + padding_size_width_left))):
output_table[out_b * stride_b_out + out_h * stride_h_out + out_w * stride_w_out + out_d] = input_table[b * stride_b_in + (h - padding_size_height_top) * stride_h_in + (w - padding_size_width_left) * stride_w_in + d];
i1 = Input("input", "TENSOR_FLOAT32", "{%d, %d, %d, %d}" % (batch, rows, cols, depth))
block = Parameter("block_size", "TENSOR_INT32", "{2}", [block_size_height, block_size_width])
paddings = Parameter("paddings", "TENSOR_INT32", "{2, 2}", [padding_size_height_top, padding_size_height_bottom, padding_size_width_left, padding_size_width_right])
output = Output("output", "TENSOR_FLOAT32", "{%d, %d, %d, %d}" % (out_batch, out_rows, out_cols, depth))
model = Model()
model = model.Operation("SPACE_TO_BATCH_ND", i1, block, paddings).To(output)
# Example 1. Input in operand 0,
input0 = {i1: # input 0
input_table}
output0 = {output: # output 0
output_table}
# Instantiate an example
Example((input0, output0))
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