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#!/usr/bin/env python
import matplotlib.pyplot as plt
import numpy as np
import imgviz
def nchannel2rgb():
data = imgviz.data.arc2017()
nchannel_viz = imgviz.nchannel2rgb(data["res4"], dtype=np.float32)
H, W = data["rgb"].shape[:2]
nchannel_viz = imgviz.resize(nchannel_viz, height=H, width=W)
nchannel_viz = (nchannel_viz * 255).round().astype(np.uint8)
# -------------------------------------------------------------------------
plt.figure(dpi=200)
plt.subplot(121)
plt.title("rgb")
plt.imshow(data["rgb"])
plt.axis("off")
plt.subplot(122)
plt.title("res4 (colorized)")
plt.imshow(nchannel_viz)
plt.axis("off")
img = imgviz.io.pyplot_to_numpy()
plt.close()
return img
if __name__ == "__main__":
from base import run_example
run_example(nchannel2rgb)
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