Fliptate Problem

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0. Setup1. Flip2. Rotate

Given an 8x8x3 tensor which represents an image of the number 4,

Flip the image horizontally.

Then rotate the image clockwise 90 degrees.

import torch

r = torch.tensor([
    [0,0,0,0,0,0,0,0],
    [0,0,0,0,0,0,0,0],
    [0,0,1,0,0,1,0,0],
    [0,0,1,0,0,1,0,0],
    [0,0,1,1,1,1,0,0],
    [0,0,0,0,0,1,0,0],
    [0,0,0,0,0,1,0,0],
    [0,0,0,0,0,1,0,0]
], dtype=torch.float32)
g = 0.8*r
b = 0.5*r
img = torch.moveaxis(torch.stack((r,g,b)), 0, -1)

print(img.shape)
# torch.Size([8, 8, 3]) (1)

1. img is an 8x8 image with 3 color channels (RGB).

How to plot img

Use matplotlib.pyplot.imshow().

import matplotlib.pyplot as plt
plt.imshow(img)

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Try with Google Colab

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