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Add an option to specify whether to apply a smooth to the picture. #1463

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Add an option to specify whether to apply a smooth to the picture. #1463

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16 changes: 16 additions & 0 deletions labelme/app.py
View file
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Original file line number Diff line number Diff line change
Expand Up @@ -548,6 +548,14 @@ def __init__(
checked=self._config["keep_prev_scale"],
enabled=True,
)
smoothPixmap = action(
self.tr("&Smooth Pixmap"),
self.enableSmoothPixmap,
tip=self.tr("Whether smooth pixmap"),
checkable=True,
checked=self._config["canvas"]["smooth_pixmap"],
enabled=True,
)
fitWindow = action(
self.tr("&Fit Window"),
self.setFitWindow,
Expand Down Expand Up @@ -652,6 +660,7 @@ def __init__(
zoomOut=zoomOut,
zoomOrg=zoomOrg,
keepPrevScale=keepPrevScale,
smoothPixmap=smoothPixmap,
fitWindow=fitWindow,
fitWidth=fitWidth,
brightnessContrast=brightnessContrast,
Expand Down Expand Up @@ -760,6 +769,7 @@ def __init__(
zoomOut,
zoomOrg,
keepPrevScale,
smoothPixmap,
None,
fitWindow,
fitWidth,
Expand Down Expand Up @@ -1549,6 +1559,11 @@ def enableKeepPrevScale(self, enabled):
self._config["keep_prev_scale"] = enabled
self.actions.keepPrevScale.setChecked(enabled)

def enableSmoothPixmap(self, enabled):
self._config["canvas"]["smooth_pixmap"] = enabled
self.actions.smoothPixmap.setChecked(enabled)
self.paintCanvas()

def onNewBrightnessContrast(self, qimage):
self.canvas.loadPixmap(QtGui.QPixmap.fromImage(qimage), clear_shapes=False)

Expand Down Expand Up @@ -1718,6 +1733,7 @@ def resizeEvent(self, event):

def paintCanvas(self):
assert not self.image.isNull(), "cannot paint null image"
self.canvas.smooth_pixmap = self._config["canvas"]["smooth_pixmap"]
self.canvas.scale = 0.01 * self.zoomWidget.value()
self.canvas.adjustSize()
self.canvas.update()
Expand Down
1 change: 1 addition & 0 deletions labelme/config/default_config.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -81,6 +81,7 @@ canvas:
linestrip: false
ai_polygon: false
ai_mask: false
smooth_pixmap: true

shortcuts:
close: Ctrl+W
Expand Down
8 changes: 5 additions & 3 deletions labelme/widgets/canvas.py
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Original file line number Diff line number Diff line change
Expand Up @@ -102,6 +102,7 @@ def __init__(self, *args, **kwargs):
self.setFocusPolicy(QtCore.Qt.WheelFocus)

self._ai_model = None
self.smooth_pixmap = True

def fillDrawing(self):
return self._fill_drawing
Expand Down Expand Up @@ -686,9 +687,10 @@ def paintEvent(self, event):

p = self._painter
p.begin(self)
p.setRenderHint(QtGui.QPainter.Antialiasing)
p.setRenderHint(QtGui.QPainter.HighQualityAntialiasing)
p.setRenderHint(QtGui.QPainter.SmoothPixmapTransform)
if self.smooth_pixmap:
p.setRenderHint(QtGui.QPainter.Antialiasing)
p.setRenderHint(QtGui.QPainter.HighQualityAntialiasing)
p.setRenderHint(QtGui.QPainter.SmoothPixmapTransform)

p.scale(self.scale, self.scale)
p.translate(self.offsetToCenter())
Expand Down