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Refactor regionprops

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Johannes Schönberger
2013-08-06 14:27:37 +02:00
parent 7fda9000c7
commit 918332c4c6
3 changed files with 486 additions and 420 deletions
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doc/examples/plot_regionprops.py
+9 -15
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@@ -24,29 +24,23 @@ image[rr,cc] = 1
image = rotate(image, angle=15, order=0)
label_img = label(image)
props = regionprops(label_img, [
'BoundingBox',
'Centroid',
'Orientation',
'MajorAxisLength',
'MinorAxisLength'
])
regions = regionprops(label_img)
plt.imshow(image)
for prop in props:
x0 = prop['Centroid'][1]
y0 = prop['Centroid'][0]
x1 = x0 + math.cos(prop['Orientation']) * 0.5 * prop['MajorAxisLength']
y1 = y0 - math.sin(prop['Orientation']) * 0.5 * prop['MajorAxisLength']
x2 = x0 - math.sin(prop['Orientation']) * 0.5 * prop['MinorAxisLength']
y2 = y0 - math.cos(prop['Orientation']) * 0.5 * prop['MinorAxisLength']
for props in regions:
y0, x0 = props.centroid
orientation = props.orientation
x1 = x0 + math.cos(orientation) * 0.5 * props.major_axis_length
y1 = y0 - math.sin(orientation) * 0.5 * props.major_axis_length
x2 = x0 - math.sin(orientation) * 0.5 * props.minor_axis_length
y2 = y0 - math.cos(orientation) * 0.5 * props.minor_axis_length
plt.plot((x0, x1), (y0, y1), '-r', linewidth=2.5)
plt.plot((x0, x2), (y0, y2), '-r', linewidth=2.5)
plt.plot(x0, y0, '.g', markersize=15)
minr, minc, maxr, maxc = prop['BoundingBox']
minr, minc, maxr, maxc = props.bbox
bx = (minc, maxc, maxc, minc, minc)
by = (minr, minr, maxr, maxr, minr)
plt.plot(bx, by, '-b', linewidth=2.5)