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tf.image.rgb_to_grayscale

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Converts one or more images from RGB to Grayscale.

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.

Args
images The RGB tensor to convert. 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/r1.15/api_docs/python/tf/image/rgb_to_grayscale