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writer.append_data(image) means

Pravin Athikari answered on June 29, 2022 Popularity 1/10 Helpfulness 1/10

answer writer.append_data(image) means

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writer.append_data(image) means

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pip install imageio[ffmpeg]

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Source: imageio.readthedocs.io

Tags: python

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Contributed on Jun 29 2022

Pravin Athikari

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writer.append_data(image) means

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import imageio.v3 as iio
import numpy as np

for idx, frame in enumerate(iio.imiter("<video0>")):
    print(f"Frame {idx}: avg. color {np.sum(frame, axis=-1)}")

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Source: imageio.readthedocs.io

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Contributed on Jun 29 2022

Pravin Athikari

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writer.append_data(image) means

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import imageio as iio
import numpy as np

# read the video (it fits into memory)
# Note: this will open the image twice. Check the docs (advanced usage) if
# this is an issue for your use-case
metadata = iio.immeta("imageio:cockatoo.mp4", exclude_applied=False)
frames = iio.imread("imageio:cockatoo.mp4", index=None)

# manually convert the video
gray_frames = np.dot(frames, [0.2989, 0.5870, 0.1140])
gray_frames = np.round(gray_frames).astype(np.uint8)
gray_frames_as_rgb = np.stack([gray_frames] * 3, axis=-1)

# write the video
iio.imwrite("cockatoo_gray.mp4", gray_frames_as_rgb, fps=metadata["fps"])

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Source: imageio.readthedocs.io

Tags: python

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Contributed on Jun 29 2022

Pravin Athikari

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writer.append_data(image) means

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