set_color(image, coords, color, alpha=1)

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

Parameters

image : (M, N, D) ndarray

Image

coords : tuple of ((P,) ndarray, (P,) ndarray)

Row and column coordinates of pixels to be colored.

color : (D,) ndarray

Color to be assigned to coordinates in the image.

alpha : scalar or (N,) ndarray

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

Set pixel color in the image at the given coordinates.

Examples

This example is valid syntax, but we were not able to check execution

>>> from skimage.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)

See :

Back References

The following pages refer to to this document either explicitly or contain code examples using this.

skimage.draw.draw.circle_perimeter_aa skimage.viewer.canvastools.recttool.RectangleTool skimage.draw.draw.set_color

Local connectivity graph

Hover to see nodes names; edges to Self not shown, Caped at 50 nodes.

Using a canvas is more power efficient and can get hundred of nodes ; but does not allow hyperlinks; , arrows or text (beyond on hover)

SVG is more flexible but power hungry; and does not scale well to 50 + nodes.

All aboves nodes referred to, (or are referred from) current nodes; Edges from Self to other have been omitted (or all nodes would be connected to the central node "self" which is not useful). Nodes are colored by the library they belong to, and scaled with the number of references pointing them

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File: /skimage/draw/draw.py#308
type: <class 'function'>
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