Create circular mask

tomni.make_mask.make_mask_circle(img_shape: tuple, diameter: int) → numpy.ndarray

Create a boolean image with a circle of True surrounded by False.

Parameters

• img_shape (tuple) – The shape of the image given in image coordinates, represented as (width, height).

• diameter (int) – The diameter of the circle in pixels.

Returns

A boolean image where the area enclosed by the circle is True and the rest is False.

Return type

np.ndarray

Note

• The function uses either ‘make_small_mask_circle’ or ‘make_big_mask_circle’ based on the size of the circle.

• In case the diameter is greater than or equal to 100 pixels, the ‘make_big_mask_circle’ function is used for memory efficiency.