tf.image.central_crop( image, central_fraction )
See the guide: Images > Cropping
Crop the central region of the image(s).
Remove the outer parts of an image but retain the central region of the image along each dimension. If we specify central_fraction = 0.5, this function returns the region marked with "X" in the below diagram.
-------- | | | XXXX | | XXXX | | | where "X" is the central 50% of the image. --------
This function works on either a single image (
image is a 3-D Tensor), or a
batch of images (
image is a 4-D Tensor).
image: Either a 3-D float Tensor of shape [height, width, depth], or a 4-D Tensor of shape [batch_size, height, width, depth].
central_fraction: float (0, 1], fraction of size to crop
ValueError: if central_crop_fraction is not within (0, 1].
3-D / 4-D float Tensor, as per the input.