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tf.image.rgb_to_grayscale

TensorFlow 1 version View source on GitHub

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.

images The RGB tensor to convert. Last dimension must have size 3 and should contain RGB values.
name A name for the operation (optional).

The converted grayscale image(s).