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MainWindowUI.py
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from PyQt6.QtWidgets import QMainWindow, QWidget, QVBoxLayout
from PyQt6 import uic
from PyQt6.QtWidgets import QFileDialog
from Messages.Image import Image , Images
from PyQt6.QtGui import QPixmap,QImage
from PyQt6.QtCore import Qt, QTimer
from pubsub import pub
from Messages.Noise import Noise
from matplotlib.backends.backend_qt5agg import FigureCanvasQTAgg as FigureCanvas
from matplotlib.backends.backend_agg import FigureCanvasAgg
import logging
logging.basicConfig(
filename="app.log",
level=logging.INFO,
format="%(asctime)s - %(levelname)s - %(message)s",
filemode="w" # "w" overwrites the file; use "a" to append
)
class MainWindowUI(QMainWindow):
def __init__(self):
super(MainWindowUI, self).__init__()
self.ui = uic.loadUi("design.ui", self)
self.ui.show()
self.ui.setWindowTitle("Image Filter")
self.histogram = None
self.isLoading = False
self.hide_Widget(self.ui.saltPepperWidget)
self.hide_Widget(self.ui.LoadingLabel)
self._bind_events()
self._bind_ui_events()
self.images = Images()
self.images.image1 = Image("test_images/Lenna.png")
self.update_output()
def _bind_events(self):
pub.subscribe(self.update_display, "update display")
pub.subscribe(self.end_loading, "update display")
pub.subscribe(self.start_loading, "start Loading")
pub.subscribe(self.update_histogram, "display_histogram")
pub.subscribe(self.update_output, "update_output")
def start_loading(self):
self.show_widget(self.ui.LoadingLabel)
self.isLoading = True
logging.info("Loading started")
def end_loading(self):
self.hide_Widget(self.ui.LoadingLabel)
self.isLoading = False
logging.info("Loading ended")
def _bind_ui_events(self):
self.ui.LoadImageButton.clicked.connect(self.upload_image1)
self.ui.loadImageTwoButton.clicked.connect(self.upload_image2)
self.ui.mixerModeGroup.clicked.connect(lambda: self.select_mode(1))
self.ui.noiseModeGroup.clicked.connect(lambda: self.select_mode(2))
self.ui.otherModesGroup.clicked.connect(lambda: self.select_mode(3))
self.ui.EdgeDetectionGroupBox.clicked.connect(lambda: self.select_mode(4))
self.ui.normalizationRadioButton.clicked.connect(self.update_display)
self.ui.histogramRadioButton.clicked.connect(self.update_display)
self.ui.thresholdingRadioButton.clicked.connect(self.update_thresholding)
self.ui.noiseTypeComboBox.currentIndexChanged.connect(self.update_noise)
self.ui.filterTypeComboBox.currentIndexChanged.connect(self.update_noise)
self.ui.saltNoiseSlider.valueChanged.connect(self.update_noise)
self.ui.pepperNoiseSlider.valueChanged.connect(self.update_noise)
self.ui.edgeDetectionComboBox.currentIndexChanged.connect(self.update_edge_detection)
self.ui.cutoffFreqOneSlider.valueChanged.connect(self.update_mix_images)
# self.ui.cutoffFreqTwoSlider.valueChanged.connect(self.update_mix_images)
self.ui.normalizationRadioButton.clicked.connect(self.update_output)
self.ui.histogramRadioButton.clicked.connect(self.update_output)
self.ui.thresholdingRadioButton.clicked.connect(self.update_output)
self.ui.freqDomainRadioButton.clicked.connect(self.update_output)
self.ui.cutoffFrequencySlider.valueChanged.connect(self.update_freq_domain)
self.ui.resetButton.clicked.connect(self.reset_images)
self.ui.grayScaleButton.clicked.connect(self.convert_to_grayscale)
def update_histogram(self, canvas: FigureCanvasAgg):
self.histogram = FigureCanvas(canvas.figure)
layout = self.ui.imageDisplayContainer.layout()
if layout is None:
layout = QVBoxLayout(self.ui.imageDisplayContainer)
layout.addWidget(self.histogram)
print("Histogram displayed")
def remove_histogram(self):
layout = self.ui.imageDisplayContainer.layout()
if layout is not None:
if self.histogram:
layout.removeWidget(self.histogram)
self.histogram.deleteLater()
self.histogram = None
print("Histogram removed")
def update_output(self):
if self.ui.mixerModeGroup.isChecked():
self.select_mode(1)
elif self.ui.noiseModeGroup.isChecked():
self.select_mode(2)
elif self.ui.otherModesGroup.isChecked():
self.select_mode(3)
elif self.ui.EdgeDetectionGroupBox.isChecked():
self.select_mode(4)
else:
self.select_mode(0)
def update_freq_domain(self):
if Images().image1 is None:
return
if not self.ui.freqDomainRadioButton.isChecked():
return
pub.sendMessage("Frequency Filters", cutoff = self.ui.cutoffFrequencySlider.value())
logging.info("Frequency Domain topic published")
def convert_to_grayscale(self):
if Images().image1 is None:
return
pub.sendMessage("Grayscale")
logging.info("Grayscale topic published")
def reset_images(self):
self.images.image1 = None
self.images.image2 = None
self.images.output1 = None
self.images.output2 = None
self.images.output3 = None
self.OriginalImage1Label.clear()
self.OriginalImage2Label.clear()
self.OutputImage1Label.clear()
self.OutputImage2Label.clear()
self.OutputImage3Label.clear()
logging.info("Images reset")
def update_noise(self):
if Images().image1 is None:
return
if self.isLoading:
QTimer.singleShot(100, self.update_noise)
return
noise = Noise(
noise = self.ui.noiseTypeComboBox.currentText(),
filter = self.ui.filterTypeComboBox.currentText(),
saltRatio = self.ui.saltNoiseSlider.value()/100,
pepperRatio = self.ui.pepperNoiseSlider.value()/100
)
pub.sendMessage("Add Noise", noise = noise)
logging.info(f"Add Noise topic published Noise: {noise.noise} Filter: {noise.filter} Salt: {noise.saltRatio} Pepper: {noise.pepperRatio}")
def update_edge_detection(self):
if Images().image1 is None:
return
if self.isLoading:
QTimer.singleShot(100, self.update_edge_detection)
return
pub.sendMessage("Edge Detection" , filter = self.ui.edgeDetectionComboBox.currentText())
logging.info(f"Edge Detection topic published Filter: {self.ui.edgeDetectionComboBox.currentText()}")
def update_thresholding(self):
if Images().image1 is None:
return
if self.isLoading:
QTimer.singleShot(100, self.update_thresholding)
return
if self.images.image1:
pub.sendMessage("Thresholding")
logging.info("Thresholding topic published")
def update_mix_images(self):
if Images().image1 is None:
return
if self.isLoading:
QTimer.singleShot(100, self.update_mix_images)
return
pub.sendMessage("Mix Images", freq1 = self.ui.cutoffFreqOneSlider.value(), freq2 = 0)
logging.info(f"Mix Images topic published Freq1: {self.ui.cutoffFreqOneSlider.value()} Freq2: {0}")
def upload_image1(self):
image = self.upload_image()
if image is None: return
self.images.image1 = image
size = (250,400)
if(not self.ui.mixerModeGroup.isChecked()):
size = (440,400)
image.resize((512, 512))
piximage = QPixmap.fromImage(image.qimg.scaled(size[0],size[1]))
self.ui.OriginalImage1Label.setPixmap(piximage)
self.ui.OriginalImage1Label.setAlignment(Qt.AlignmentFlag.AlignCenter)
self.update_output()
def upload_image2(self):
image = self.upload_image()
if image is None: return
self.images.image2 = image
image.resize((512, 512))
piximage = QPixmap.fromImage(image.qimg.scaled(250,400))
self.ui.OriginalImage2Label.setPixmap(piximage)
self.ui.OriginalImage2Label.setAlignment(Qt.AlignmentFlag.AlignCenter)
self.update_output()
@staticmethod
def hide_Widget(Widget):
Widget.hide()
for child in Widget.findChildren(QWidget):
child.hide()
def show_widget(self, Widget):
Widget.show()
for child in Widget.findChildren(QWidget):
child.show()
def upload_image(self):
file_name, _ = QFileDialog.getOpenFileName(self, "Open Image File", "", "Images (*.png *.xpm *.jpg *.bmp)")
if file_name:
return Image(file_name)
return None
def update_display(self):
# self.remove_histogram()
if self.ui.mixerModeGroup.isChecked():
self.show_widget(self.ui.Image2Widget)
self.show_widget(self.ui.Out1Widget)
self.hide_Widget(self.ui.Out2Widget)
self.hide_Widget(self.ui.Out3Widget)
self.ui.OriginalImage1Text.setText("Image 1")
self.ui.OriginalImage2Text.setText("Image 2")
self.ui.OutputImage1Text.setText("Mixed")
size = (250,400)
elif self.ui.EdgeDetectionGroupBox.isChecked():
self.show_widget(self.ui.Out1Widget)
self.show_widget(self.ui.Out2Widget)
self.show_widget(self.ui.Out3Widget)
self.hide_Widget(self.ui.Image2Widget)
self.ui.OriginalImage1Text.setText("Original")
self.ui.OutputImage2Text.setText("Horizontal")
self.ui.OutputImage1Text.setText("Vertical")
self.ui.OutputImage3Text.setText("Edge Detected")
size = (250,400)
elif self.ui.otherModesGroup.isChecked():
self.show_widget(self.ui.Out1Widget)
self.show_widget(self.ui.Out2Widget)
self.hide_Widget(self.ui.Out3Widget)
self.hide_Widget(self.ui.Image2Widget)
self.ui.OriginalImage1Text.setText("Original")
if self.ui.normalizationRadioButton.isChecked():
self.ui.OutputImage1Text.setText("Normalized")
self.ui.OutputImage2Text.setText("Equalized")
elif self.ui.histogramRadioButton.isChecked():
self.hide_Widget(self.ui.Out1Widget)
self.hide_Widget(self.ui.Out2Widget)
self.hide_Widget(self.ui.Out3Widget)
# self.ui.OutputImage1Text.setText("Histogram")
# self.ui.OutputImage2Text.setText("CDF")
elif self.ui.thresholdingRadioButton.isChecked():
self.ui.OutputImage1Text.setText("Local")
self.ui.OutputImage2Text.setText("Global")
elif self.freqDomainRadioButton.isChecked():
self.ui.OutputImage1Text.setText("Low Pass")
self.ui.OutputImage2Text.setText("High Pass")
size = (250,400)
else:
self.show_widget(self.ui.Out1Widget)
self.hide_Widget(self.ui.Out2Widget)
self.hide_Widget(self.ui.Out3Widget)
self.hide_Widget(self.ui.Image2Widget)
self.ui.OriginalImage1Text.setText("Original")
self.ui.OutputImage1Text.setText("Output")
size = (440,400)
if self.images.image1:
image = self.images.image1
piximage = QPixmap.fromImage(image.qimg.scaled(size[0],size[1]))
self.ui.OriginalImage1Label.setPixmap(piximage)
self.ui.OriginalImage1Label.setAlignment(Qt.AlignmentFlag.AlignCenter)
if self.images.image2:
image = self.images.image2
piximage = QPixmap.fromImage(image.qimg.scaled(250,400))
self.ui.OriginalImage2Label.setPixmap(piximage)
self.ui.OriginalImage2Label.setAlignment(Qt.AlignmentFlag.AlignCenter)
if self.images.output1:
piximage = QPixmap.fromImage(self.images.output1.qimg.scaled(size[0],size[1]))
self.ui.OutputImage1Label.setPixmap(piximage)
self.ui.OutputImage1Label.setAlignment(Qt.AlignmentFlag.AlignCenter)
if self.images.output2:
piximage = QPixmap.fromImage(self.images.output2.qimg.scaled(size[0],size[1]))
self.ui.OutputImage2Label.setPixmap(piximage)
self.ui.OutputImage2Label.setAlignment(Qt.AlignmentFlag.AlignCenter)
if self.images.output3:
piximage = QPixmap.fromImage(self.images.output3.qimg.scaled(size[0],size[1]))
self.ui.OutputImage3Label.setPixmap(piximage)
self.ui.OutputImage3Label.setAlignment(Qt.AlignmentFlag.AlignCenter)
def select_mode(self,index):
self.OutputImage1Label.clear()
self.OutputImage2Label.clear()
self.OutputImage3Label.clear()
self.remove_histogram()
self.images.output1 = None
self.images.output2 = None
self.images.output3 = None
if index == 1:
self.ui.noiseModeGroup.setChecked(False)
self.ui.otherModesGroup.setChecked(False)
self.ui.EdgeDetectionGroupBox.setChecked(False)
self.update_mix_images()
elif index == 2:
self.ui.mixerModeGroup.setChecked(False)
self.ui.otherModesGroup.setChecked(False)
self.ui.EdgeDetectionGroupBox.setChecked(False)
self.update_noise()
elif (index == 3 or (
not self.ui.mixerModeGroup.isChecked()
and not self.ui.noiseModeGroup.isChecked()
and not self.ui.otherModesGroup.isChecked()
and not self.ui.EdgeDetectionGroupBox.isChecked())):
self.ui.otherModesGroup.setChecked(True)
self.ui.mixerModeGroup.setChecked(False)
self.ui.noiseModeGroup.setChecked(False)
self.ui.EdgeDetectionGroupBox.setChecked(False)
if Images().image1 is None:
return
if self.ui.normalizationRadioButton.isChecked():
pub.sendMessage("Normalize Image")
logging.info("Normalize Image topic published")
elif self.ui.histogramRadioButton.isChecked():
pub.sendMessage("Histogram Equalization")
logging.info("Histogram Equalization topic published")
elif self.ui.thresholdingRadioButton.isChecked():
pub.sendMessage("Thresholding")
logging.info("Thresholding topic published")
elif self.freqDomainRadioButton.isChecked():
pub.sendMessage("Frequency Filters", cutoff = self.ui.cutoffFrequencySlider.value())
logging.info("Frequency Domain topic published")
else:
self.ui.mixerModeGroup.setChecked(False)
self.ui.noiseModeGroup.setChecked(False)
self.ui.otherModesGroup.setChecked(False)
self.update_edge_detection()
self.update_display()