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main.py
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# Imports
import sys
import DataProcessing
from PyQt5 import QtGui
from PyQt5.QtCore import Qt, pyqtSignal, pyqtSlot, QCoreApplication
from PyQt5.QtGui import QImage, QPixmap, QIcon
from PyQt5.QtWidgets import (QWidget, QLabel, QApplication, QPushButton,
QSlider)
# Control variables
ip = "192.168.1.6:4747"
link = "http://" + ip + "/video"
class App(QWidget):
toggle_hsv_sig = pyqtSignal(bool)
record_start_sig = pyqtSignal(bool)
detect_start_sig = pyqtSignal(bool)
threshold_min_sig = pyqtSignal(list)
threshold_max_sig = pyqtSignal(list)
def __init__(self):
super().__init__()
self.title = 'Hand Gestures Detection'
self.left = 100
self.top = 100
self.width = 640
self.height = 480
self.record_end = True
self.lower = [50, 39, 0]
self.upper = [255, 255, 255]
self.camera_feed = QLabel(self)
self.roi_bin = QLabel(self)
self.hsv_label = QLabel(self)
self.button1 = QPushButton('Detect Hand Gesture', self)
self.button2 = QPushButton('Record A Gesture', self)
self.button3 = QPushButton('Toggle HSV for ROI', self)
self.button4 = QPushButton('HSV min', self)
self.button5 = QPushButton('HSV max', self)
self.threshold_min_sliders = [self.create_hsv_slider() for _ in range(3)]
self.threshold_max_sliders = [self.create_hsv_slider() for _ in range(3)]
self.init_UI()
def on_record_end_sig(self, record_end):
self.record_end = True if record_end else False
self.button2.setChecked(False)
print("Record_end signal status: " + str(self.record_end))
def on_gesture_detected_sig(self, gesture):
print(gesture)
@pyqtSlot(QImage)
def set_camera_feed(self, image):
self.camera_feed.setPixmap(QPixmap.fromImage(image))
@pyqtSlot(QImage)
def set_roi_bin(self, image):
self.roi_bin.setPixmap(QPixmap.fromImage(image))
@pyqtSlot()
def button1_on_click(self):
if self.button1.isChecked():
self.detect_start_sig.emit(True)
self.roi_bin.show()
else:
self.detect_start_sig.emit(False)
self.roi_bin.hide()
@pyqtSlot()
def button2_on_click(self):
print("Button 2 pressed")
self.record_end = False
self.record_start_sig.emit(True)
@pyqtSlot()
def button3_on_click(self):
if self.button3.isChecked():
self.toggle_hsv_sig.emit(True)
else:
self.toggle_hsv_sig.emit(False)
@pyqtSlot()
def button4_on_click(self):
if not self.button4.isChecked() and self.threshold_min_sliders[0].isVisible():
self.button4.setChecked(True)
if self.button4.isChecked() and not self.threshold_min_sliders[0].isVisible():
self.button5.setChecked(False)
for slider in self.threshold_max_sliders:
slider.hide()
for slider in self.threshold_min_sliders:
slider.show()
@pyqtSlot()
def button5_on_click(self):
if not self.button5.isChecked() and self.threshold_max_sliders[0].isVisible():
self.button5.setChecked(True)
if self.button5.isChecked() and not self.threshold_max_sliders[0].isVisible():
self.button4.setChecked(False)
for slider in self.threshold_min_sliders:
slider.hide()
for slider in self.threshold_max_sliders:
slider.show()
def slider1_on_change(self, value):
self.lower[0] = value
self.threshold_min_sig.emit(self.lower)
self.update_hsv_values()
def slider2_on_change(self, value):
self.lower[1] = value
self.threshold_min_sig.emit(self.lower)
self.update_hsv_values()
def slider3_on_change(self, value):
self.lower[2] = value
self.threshold_min_sig.emit(self.lower)
self.update_hsv_values()
def slider4_on_change(self, value):
self.upper[0] = value
self.threshold_max_sig.emit(self.upper)
self.update_hsv_values()
def slider5_on_change(self, value):
self.upper[1] = value
self.threshold_max_sig.emit(self.upper)
self.update_hsv_values()
def slider6_on_change(self, value):
self.upper[2] = value
self.threshold_max_sig.emit(self.upper)
self.update_hsv_values()
def update_hsv_values(self):
text = ' Thresholding\n\n'
text += 'Min'.ljust(18) + 'Max\n'
text += f'H: {self.lower[0]:<15}H: {self.upper[0]}\n'
text += f'S: {self.lower[1]:<15}S: {self.upper[1]}\n'
text += f'V: {self.lower[2]:<15}V: {self.upper[2]}\n'
self.hsv_label.setText(text)
def create_hsv_slider(self) -> QSlider:
slider = QSlider(Qt.Horizontal, self)
slider.setFocusPolicy(Qt.NoFocus)
slider.setTickPosition(QSlider.TicksBelow)
slider.setTickInterval(1)
slider.setRange(0, 255)
slider.setFixedWidth(150)
slider.hide()
return slider
def init_UI(self):
self.setWindowTitle(self.title)
self.setGeometry(self.left, self.top, self.width, self.height)
self.setWindowIcon(QIcon('icon.png'))
self.setFixedWidth(840)
self.setFixedHeight(360)
# camera feed label
self.camera_feed.move(0, 0)
self.camera_feed.resize(640, 360)
# roi_bin label
self.roi_bin.move(640-64, 360-64)
self.roi_bin.resize(64, 64)
# self.roi_bin.hide()
# create a HSV range control label
self.hsv_label.setGeometry(660, 230, 180, 130)
self.update_hsv_values()
self.hsv_label.setFont(QtGui.QFont("Arial", 9, QtGui.QFont.Bold))
# create buttons
self.button1.move(660, 20)
self.button2.move(660, 50)
self.button3.move(660, 80)
self.button4.move(660, 110)
self.button5.move(740, 110)
self.button1.setCheckable(True)
self.button2.setCheckable(True)
self.button3.setCheckable(True)
self.button4.setCheckable(True)
self.button5.setCheckable(True)
self.button1.clicked.connect(self.button1_on_click)
self.button2.clicked.connect(self.button2_on_click)
self.button3.clicked.connect(self.button3_on_click)
self.button4.clicked.connect(self.button4_on_click)
self.button5.clicked.connect(self.button5_on_click)
# init sliders for HSV values
self.threshold_min_sliders[0].move(660, 140)
self.threshold_min_sliders[0].setValue(self.lower[0])
self.threshold_min_sliders[0].valueChanged.connect(self.slider1_on_change)
self.threshold_min_sliders[1].move(660, 170)
self.threshold_min_sliders[1].setValue(self.lower[1])
self.threshold_min_sliders[1].valueChanged.connect(self.slider2_on_change)
self.threshold_min_sliders[2].move(660, 200)
self.threshold_min_sliders[2].setValue(self.lower[2])
self.threshold_min_sliders[2].valueChanged.connect(self.slider3_on_change)
self.threshold_max_sliders[0].move(660, 140)
self.threshold_max_sliders[0].setValue(self.upper[0])
self.threshold_max_sliders[0].valueChanged.connect(self.slider4_on_change)
self.threshold_max_sliders[1].move(660, 170)
self.threshold_max_sliders[1].setValue(self.upper[1])
self.threshold_max_sliders[1].valueChanged.connect(self.slider5_on_change)
self.threshold_max_sliders[2].move(660, 200)
self.threshold_max_sliders[2].setValue(self.upper[2])
self.threshold_max_sliders[2].valueChanged.connect(self.slider6_on_change)
th = DataProcessing.DataProcessing(self)
th.camera_feed_sig.connect(self.set_camera_feed)
th.roi_bin_sig.connect(self.set_roi_bin)
th.record_end_sig.connect(self.on_record_end_sig)
th.gesture_detected_sig.connect(self.on_gesture_detected_sig)
self.toggle_hsv_sig.connect(th.on_toggle_hsv_sig)
self.record_start_sig.connect(th.on_record_start_sig)
self.detect_start_sig.connect(th.on_detect_start_sig)
self.threshold_min_sig.connect(th.on_hsv_min_change_sig)
self.threshold_max_sig.connect(th.on_hsv_max_change_sig)
th.start()
self.show()
if __name__ == '__main__':
app = QCoreApplication.instance()
if app is None:
app = QApplication(sys.argv)
ex = App()
sys.exit(app.exec_())