mirror of
https://github.com/wassname/scikit-image.git
synced 2026-06-27 18:25:32 +08:00
M Clark
06f73d7611
This change lets label tool work with images that have multiple channels. Before this change we would a value error.
Test:
```
import skimage
from skimage.viewer import plugins
from skimage import data, viewer, transform, color
imdata = skimage.data.astronaut()
viewer = skimage.viewer.ImageViewer(imdata)
viewer+=skimage.viewer.plugins.LabelPainter()
viewer.show()
```
Previous error:
```
...skimage/viewer/canvastools/painttool.py in at(self, row, col)
188
189 def at(self, row, col):
--> 190 h, w = self.array_shape
191 r = self.radius
192 xmin = max(0, col - r)
ValueError: too many values to unpack (expected 2)
```
68 lines
1.8 KiB
Python
68 lines
1.8 KiB
Python
import numpy as np
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from .base import Plugin
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from ..widgets import ComboBox, Slider
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from ..canvastools import PaintTool
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__all__ = ['LabelPainter']
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rad2deg = 180 / np.pi
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class LabelPainter(Plugin):
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name = 'LabelPainter'
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def __init__(self, max_radius=20, **kwargs):
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super(LabelPainter, self).__init__(**kwargs)
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# These widgets adjust plugin properties instead of an image filter.
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self._radius_widget = Slider('radius', low=1, high=max_radius,
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value=5, value_type='int', ptype='plugin')
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labels = [str(i) for i in range(6)]
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labels[0] = 'Erase'
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self._label_widget = ComboBox('label', labels, ptype='plugin')
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self.add_widget(self._radius_widget)
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self.add_widget(self._label_widget)
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print(self.help())
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def help(self):
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helpstr = ("Label painter",
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"Hold left-mouse button and paint on canvas.")
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return '\n'.join(helpstr)
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def attach(self, image_viewer):
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super(LabelPainter, self).attach(image_viewer)
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image = image_viewer.original_image
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self.paint_tool = PaintTool(image_viewer, image.shape[:2],
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on_enter=self.on_enter)
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self.paint_tool.radius = self.radius
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self.paint_tool.label = self._label_widget.index = 1
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self.artists.append(self.paint_tool)
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def _on_new_image(self, image):
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"""Update plugin for new images."""
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self.paint_tool.shape = image.shape
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def on_enter(self, overlay):
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pass
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@property
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def radius(self):
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return self._radius_widget.val
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@radius.setter
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def radius(self, val):
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self.paint_tool.radius = val
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@property
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def label(self):
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return self._label_widget.val
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@label.setter
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def label(self, val):
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self.paint_tool.label = val
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