def image_display(self):
"""
Update the ct_image to be displayed on the DICOM View.
"""
# Lead CT
ct_pixmaps = self.pt_ct_dict_container.get(
"ct_pixmaps_" + self.slice_view)
slider_id = self.slider.value()
ct_image = ct_pixmaps[slider_id].toImage()
# Load PT
pt_pixmaps = self.pt_ct_dict_container.get(
"pt_pixmaps_" + self.slice_view)
m = float(len(pt_pixmaps)) / len(ct_pixmaps)
pt_image = pt_pixmaps[int(m * slider_id)].toImage()
# Get alpha
alpha = float(self.alpha_slider.value() / 100)
# Merge Images
painter = QPainter()
painter.begin(ct_image)
painter.setOpacity(alpha)
painter.drawImage(0, 0, pt_image)
painter.end()
# Load merged images
merged_pixmap = QtGui.QPixmap.fromImage(ct_image)
label = QtWidgets.QGraphicsPixmapItem(merged_pixmap)
self.scene = QtWidgets.QGraphicsScene()
self.scene.addItem(label)
def paint_with_opacity(pixmap: QPixmap, opacity: float):
transparent_image = QImage(QSize(36, 36),
QImage.Format_ARGB32_Premultiplied)
transparent_image.fill(Qt.transparent)
painter = QPainter(transparent_image)
painter.setOpacity(opacity)
painter.drawPixmap(18 - pixmap.width() / 2, 18 - pixmap.height() / 2,
pixmap)
painter.end()
return QPixmap.fromImage(transparent_image)