Hi everyone-
I hope someone can help me here.
I am displaying 2D numpy arrays in an ImageView widget and am trying to
*antialias* the image - my users tend to zoom in and see the ugly pixels.
[image: low-res-noAA.png]
While I have seen people use this:
pg.setConfigOptions(antialias=True)
in conjunction with ImageItem within a GraphicsView, I owuld like to use
the volume view (with slider) that you get with the ImageView but you don't
get with ImageItem.
I haven't found a way to antialias *image within an ImageView.*
Perhaps there is something Qt/PySide or a more raw OpenGL option I can use
to do this? Unfortunately I do not have a deep enough grasp on this to go
any further...
Or perhaps I just don't know how to get the slider in the ImageItem to view
slices of a 3D dataset (a stack of 2d images in this case).
Any help would be much appreciated.
Cheers-
Oli
here's my minimal code:
import sys
from PySide2.QtWidgets import (
QApplication,
QHBoxLayout,
QMainWindow,
QWidget,
)
import pyqtgraph as pg
import numpy as np
pg.setConfigOptions(antialias=True)
class MainWindow(QMainWindow):
def __init__(self):
super().__init__()
self.cw = QWidget(self)
self.cw.setAutoFillBackground(True)
self.setCentralWidget(self.cw)
self.layout = QHBoxLayout()
self.cw.setLayout(self.layout)
self.DcmImgWidget = MyImageWidget(parent=self)
self.layout.addWidget(self.DcmImgWidget)
self.show()
class MyImageWidget(pg.ImageView):
def __init__(self, parent=None):
super().__init__(parent)
self.ui.histogram.hide()
self.ui.roiBtn.hide()
self.ui.menuBtn.hide()
# 5 frames of 50x50 random noise ranging from -500 to 500
img = (1000 * np.random.normal(size=(5, 50, 50))) - 500
self.setImage(img)
def main():
app = QApplication()
main = MainWindow()
main.show()
sys.exit(app.exec_())
if __name__ == '__main__':
main()
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