skimage2.draw.set_color

skimage2.draw.set_color(image, coords, color, alpha=1)

Set pixel color in the image at the given coordinates.

Note that this function modifies the color of the image in-place. Coordinates that exceed the shape of the image will be ignored.

Parameters:

imagendarray of shape (M, N, C)

Image

coordstuple of (ndarray of shape (K,), …)

Row and column coordinates of pixels to be colored.

colorndarray of shape (C,)

Color to be assigned to coordinates in the image.

alphanp.number or ndarray of dtype np.number and shape (K,)

Alpha values used to blend color with image. 0 is transparent, 1 is opaque.

Examples

>>> from _skimage2.draw import line, set_color
>>> img = np.zeros((10, 10), dtype=np.uint8)
>>> rr, cc = line(1, 1, 20, 20)
>>> set_color(img, (rr, cc), 1)
>>> img
array([[0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
       [0, 1, 0, 0, 0, 0, 0, 0, 0, 0],
       [0, 0, 1, 0, 0, 0, 0, 0, 0, 0],
       [0, 0, 0, 1, 0, 0, 0, 0, 0, 0],
       [0, 0, 0, 0, 1, 0, 0, 0, 0, 0],
       [0, 0, 0, 0, 0, 1, 0, 0, 0, 0],
       [0, 0, 0, 0, 0, 0, 1, 0, 0, 0],
       [0, 0, 0, 0, 0, 0, 0, 1, 0, 0],
       [0, 0, 0, 0, 0, 0, 0, 0, 1, 0],
       [0, 0, 0, 0, 0, 0, 0, 0, 0, 1]], dtype=uint8)