mirror of
https://github.com/wassname/scikit-image.git
synced 2026-06-29 02:30:48 +08:00
Vighnesh Birodkar
29 lines
673 B
Python
29 lines
673 B
Python
"""
|
|
===========
|
|
RAG Drawing
|
|
===========
|
|
|
|
This example constructs a Region Adjacency Graph (RAG) and draws it with
|
|
the `rag_draw` method.
|
|
"""
|
|
from skimage import graph, data, segmentation
|
|
from matplotlib import pyplot as plt
|
|
|
|
|
|
img = data.coffee()
|
|
labels = segmentation.slic(img, compactness=30, n_segments=400)
|
|
g = graph.rag_mean_color(img, labels)
|
|
|
|
out = graph.rag_draw(labels, g, img)
|
|
plt.figure()
|
|
plt.title("RAG with all edges shown in green.")
|
|
plt.imshow(out)
|
|
|
|
out = graph.rag_draw(labels, g, img, high_color=(1, 0, 0), thresh=30)
|
|
plt.figure()
|
|
plt.title("RAG with edge weights less than 30, color "
|
|
"mapped between green and red.")
|
|
|
|
plt.imshow(out)
|
|
plt.show()
|