`skimage.draw.draw:line_aa`

source: /_skimage2/draw/draw.py:402

Signature

def line_aa(r0, c0, r1, c1)

Summary

Generate anti-aliased line pixel coordinates.

Parameters

r0, c0 : int: Starting position (row, column).
r1, c1 : int: End position (row, column).

Returns

rr, cc, val : (N,) ndarray (int, int, float): Indices of pixels (rr, cc) and intensity values (val). img[rr, cc] = val.

Examples

from skimage.draw import line_aa
img = np.zeros((10, 10), dtype=np.uint8)
rr, cc, val = line_aa(1, 1, 8, 8)
img[rr, cc] = val * 255
img

✓

array([[  0,   0,   0,   0,   0,   0,   0,   0,   0,   0],
       [  0, 255,  74,   0,   0,   0,   0,   0,   0,   0],
       [  0,  74, 255,  74,   0,   0,   0,   0,   0,   0],
       [  0,   0,  74, 255,  74,   0,   0,   0,   0,   0],
       [  0,   0,   0,  74, 255,  74,   0,   0,   0,   0],
       [  0,   0,   0,   0,  74, 255,  74,   0,   0,   0],
       [  0,   0,   0,   0,   0,  74, 255,  74,   0,   0],
       [  0,   0,   0,   0,   0,   0,  74, 255,  74,   0],
       [  0,   0,   0,   0,   0,   0,   0,  74, 255,   0],
       [  0,   0,   0,   0,   0,   0,   0,   0,   0,   0]], dtype=uint8)

Aliases

skimage.draw.line_aa