class MagnifierWidget(ToolWidget):
def __init__(self, image, parent=None):
super(MagnifierWidget, self).__init__(parent)
self.equalize_radio = QRadioButton(self.tr("Equalization"))
self.equalize_radio.setToolTip(self.tr("RGB histogram equalization"))
self.contrast_radio = QRadioButton(self.tr("Auto Contrast"))
self.contrast_radio.setToolTip(self.tr("Compress luminance tonality"))
self.centile_spin = QSpinBox()
self.centile_spin.setRange(0, 100)
self.centile_spin.setValue(20)
self.centile_spin.setSuffix(self.tr(" %"))
self.centile_spin.setToolTip(self.tr("Histogram percentile amount"))
self.channel_check = QCheckBox(self.tr("By channel"))
self.channel_check.setToolTip(self.tr("Independent RGB compression"))
self.equalize_radio.setChecked(True)
self.last_radio = self.equalize_radio
self.image = image
self.viewer = ImageViewer(self.image, self.image)
self.change()
self.viewer.viewChanged.connect(self.process)
self.equalize_radio.clicked.connect(self.change)
self.contrast_radio.clicked.connect(self.change)
self.centile_spin.valueChanged.connect(self.change)
self.channel_check.stateChanged.connect(self.change)
top_layout = QHBoxLayout()
top_layout.addWidget(QLabel(self.tr("Mode:")))
top_layout.addWidget(self.equalize_radio)
top_layout.addWidget(self.contrast_radio)
top_layout.addWidget(self.centile_spin)
top_layout.addWidget(self.channel_check)
top_layout.addStretch()
main_layout = QVBoxLayout()
main_layout.addLayout(top_layout)
main_layout.addWidget(self.viewer)
self.setLayout(main_layout)
def process(self, rect):
y1 = rect.top()
y2 = rect.bottom()
x1 = rect.left()
x2 = rect.right()
roi = self.image[y1:y2, x1:x2]
if self.equalize_radio.isChecked():
self.centile_spin.setEnabled(False)
self.channel_check.setEnabled(False)
roi = equalize_img(roi)
self.last_radio = self.equalize_radio
elif self.contrast_radio.isChecked():
self.centile_spin.setEnabled(True)
self.channel_check.setEnabled(True)
centile = self.centile_spin.value() / 200
if self.channel_check.isChecked():
roi = cv.merge(
[cv.LUT(c, auto_lut(c, centile)) for c in cv.split(roi)])
else:
roi = cv.LUT(
roi, auto_lut(cv.cvtColor(roi, cv.COLOR_BGR2GRAY),
centile))
self.last_radio = self.contrast_radio
else:
self.last_radio.setChecked(True)
return
processed = np.copy(self.image)
processed[y1:y2, x1:x2] = roi
self.viewer.update_processed(processed)
def change(self):
self.process(self.viewer.get_rect())
class MagnifierWidget(ToolWidget):
def __init__(self, image, parent=None):
super(MagnifierWidget, self).__init__(parent)
self.equalize_radio = QRadioButton(self.tr('Equalization'))
self.contrast_radio = QRadioButton(self.tr('Auto Contrast'))
self.retinex_radio = QRadioButton(self.tr('Human Retina'))
self.centile_spin = QSpinBox()
self.centile_spin.setRange(0, 100)
self.centile_spin.setValue(20)
self.centile_spin.setSuffix(self.tr(' %'))
self.channel_check = QCheckBox(self.tr('By channel'))
self.equalize_radio.setChecked(True)
self.last_radio = self.equalize_radio
self.image = image
self.viewer = ImageViewer(self.image, self.image)
self.change()
self.viewer.view_changed.connect(self.process)
self.equalize_radio.toggled.connect(self.change)
self.contrast_radio.toggled.connect(self.change)
self.centile_spin.valueChanged.connect(self.change)
self.channel_check.stateChanged.connect(self.change)
self.retinex_radio.toggled.connect(self.change)
top_layout = QHBoxLayout()
top_layout.addWidget(QLabel(self.tr('Enhancement:')))
top_layout.addWidget(self.equalize_radio)
top_layout.addWidget(self.contrast_radio)
top_layout.addWidget(self.centile_spin)
top_layout.addWidget(self.channel_check)
top_layout.addWidget(self.retinex_radio)
top_layout.addStretch()
main_layout = QVBoxLayout()
main_layout.addLayout(top_layout)
main_layout.addWidget(self.viewer)
self.setLayout(main_layout)
def process(self, rect):
y1 = rect.top()
y2 = rect.bottom()
x1 = rect.left()
x2 = rect.right()
roi = self.image[y1:y2, x1:x2]
if self.equalize_radio.isChecked():
roi = cv.merge([cv.equalizeHist(c) for c in cv.split(roi)])
self.last_radio = self.equalize_radio
elif self.contrast_radio.isChecked():
centile = self.centile_spin.value() / 200
if self.channel_check.isChecked():
roi = cv.merge([cv.LUT(c, auto_lut(c, centile)) for c in cv.split(roi)])
else:
roi = cv.LUT(roi, auto_lut(cv.cvtColor(roi, cv.COLOR_BGR2GRAY), centile))
self.last_radio = self.contrast_radio
elif self.retinex_radio.isChecked():
self.last_radio = self.retinex_radio
else:
self.last_radio.setChecked(True)
return
processed = np.copy(self.image)
processed[y1:y2, x1:x2] = roi
self.viewer.update_processed(processed)
def change(self):
self.process(self.viewer.get_rect())