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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.

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

Used in the notebooks

Used in the tutorials

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).