tf.image.rgb_to_grayscale

Converts one or more images from RGB to Grayscale.

tf.image.rgb_to_grayscale(
    images, name=None
)

Outputs a tensor of the same DType and rank as images. The size of the last dimension of the output is 1, containing the Grayscale value of the pixels.

original = tf.constant([[[1.0, 2.0, 3.0]]])
converted = tf.image.rgb_to_grayscale(original)
print(converted.numpy())
[[[1.81...]]]
Args
images The RGB tensor to convert. The last dimension must have size 3 and should contain RGB values.
name A name for the operation (optional).
Returns
The converted grayscale image(s).

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Licensed under the Creative Commons Attribution License 3.0.
Code samples licensed under the Apache 2.0 License.
https://www.tensorflow.org/versions/r2.4/api_docs/python/tf/image/rgb_to_grayscale