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main.py
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import sys, os, cv2
import numpy as np
from range_slider import RangeSlider
from PyQt5 import uic, QtGui, QtCore
from PyQt5.QtCore import QSize
from PyQt5.QtGui import QColor, QImage, QPixmap
from PyQt5.QtWidgets import QApplication, QCheckBox, QComboBox, QFileDialog, QMainWindow, QLabel, QPushButton, QSlider
def generateSolidColorPixmap(w, h, color):
canvas = QImage(QSize(w, h), QImage.Format_RGB30)
for baris in range(0, h):
for kolom in range(0, w):
canvas.setPixel(kolom, baris, color.rgb())
return canvas
class MainWindow(QMainWindow):
selectedHue = 0
selectedSaturation = 255
selectedValue = 255
lowerHSV = [0, 0, 0]
upperHSV = [179, 255, 255]
imgRaw = None
imgMask = None
imgMasked = None
imgHsvSpace = None
resized = QtCore.pyqtSignal()
def __init__(self):
super(MainWindow, self).__init__()
uic.loadUi(os.path.join(os.path.dirname(
__file__), "./assets/main_window.ui"), self)
self.sliderH = self.findChild(RangeSlider, "sliderH")
self.sliderS = self.findChild(RangeSlider, "sliderS")
self.sliderV = self.findChild(RangeSlider, "sliderV")
self.cboxHInverse = self.findChild(QCheckBox, "cboxHInverse")
self.lblH = self.findChild(QLabel, "lblH")
self.lblS = self.findChild(QLabel, "lblS")
self.lblV = self.findChild(QLabel, "lblV")
self.lblLower = self.findChild(QLabel, "lblLower")
self.lblUpper = self.findChild(QLabel, "lblUpper")
self.previewH = self.findChild(QLabel, "previewH")
self.previewS = self.findChild(QLabel, "previewS")
self.previewV = self.findChild(QLabel, "previewV")
self.previewRaw = self.findChild(QLabel, "previewRaw")
self.previewMask = self.findChild(QLabel, "previewMask")
self.previewMaskedRaw = self.findChild(QLabel, "previewMaskedRaw")
self.previewHsvSpace = self.findChild(QLabel, "previewHsvSpace")
self.cboxErode = self.findChild(QCheckBox, "cboxErode")
self.sliderErotion = self.findChild(QSlider, "sliderErotion")
self.cboxDilate = self.findChild(QCheckBox, "cboxDilate")
self.sliderDilation = self.findChild(QSlider, "sliderDilation")
self.btnOpen = self.findChild(QPushButton, "btnOpen")
self.btnCopy = self.findChild(QPushButton, "btnCopy")
self.init_handler()
self.loadHsvSpace()
self.updateHSVPreview()
def resizeEvent(self, event):
self.resized.emit()
return super(MainWindow, self).resizeEvent(event)
def loadHsvSpace(self):
self.imgHsvSpace = cv2.imread(os.path.join(os.path.dirname(__file__), "assets", "hsv_color.png"))
def init_handler(self):
self.resized.connect(self.onWindowsSizeChange)
self.sliderH.sliderMoved.connect(self.onHChanged)
self.sliderS.sliderMoved.connect(self.onSChanged)
self.sliderV.sliderMoved.connect(self.onVChanged)
self.btnOpen.clicked.connect(self.onBtnOpenClicked)
self.btnCopy.clicked.connect(self.onBtnCopyClicked)
self.cboxHInverse.stateChanged.connect(self.onCBoxHInverseChanged)
self.cboxDilate.stateChanged.connect(self.updateMask)
self.cboxErode.stateChanged.connect(self.updateMask)
self.sliderErotion.valueChanged.connect(self.onSliderErodeChanged)
self.sliderDilation.valueChanged.connect(self.onSliderDilateChanged)
# =========== Helper ===========
def inRange2(self, img):
frame_HSV = cv2.cvtColor(img, cv2.COLOR_BGR2HSV)
lower_orange = np.array(self.lowerHSV)
upper_orange = np.array(self.upperHSV)
if self.cboxHInverse.isChecked():
## collect H from 0 ~ lowerHSV
lower_orange[0] = 0
upper_orange[0] = self.lowerHSV[0]
threshold_lower = cv2.inRange(
frame_HSV, lower_orange, upper_orange)
## collect H from upperHSV ~ 255
lower_orange[0] = self.upperHSV[0]
upper_orange[0] = 255
threshold_upper = cv2.inRange(
frame_HSV, lower_orange, upper_orange)
frame_threshold = cv2.bitwise_or(threshold_lower, threshold_upper)
else:
frame_threshold = cv2.inRange(
frame_HSV, lower_orange, upper_orange)
return frame_threshold
def updateImageInLabel(self, label, _asQImage):
w = label.size().width()
h = label.size().height()
label.setPixmap(QPixmap.fromImage(_asQImage).scaled(w, h, QtCore.Qt.KeepAspectRatio))
# label.setPixmap(QPixmap.fromImage(_asQImage).scaledToWidth(label.size().width()))
def updatePreviewHsvSpace(self):
## update the rainbow image on the lower left
if self.imgHsvSpace is None:
return
frame_threshold = self.inRange2(self.imgHsvSpace)
frame_threshold = cv2.bitwise_and(self.imgHsvSpace, self.imgHsvSpace, mask=frame_threshold)
_asQImage = QImage(
frame_threshold.data, frame_threshold.shape[1], frame_threshold.shape[0], frame_threshold.shape[1]*3, QtGui.QImage.Format_RGB888)
_asQImage = _asQImage.rgbSwapped()
self.previewHsvSpace.setPixmap(QPixmap.fromImage(_asQImage).scaledToWidth(self.previewMask.size().width()))
def updateHSVPreview(self):
prevH = generateSolidColorPixmap(
200, 300, QColor.fromHsv(self.selectedHue, 255, 255))
self.previewH.setPixmap(QPixmap.fromImage(prevH))
prevS = generateSolidColorPixmap(
200, 300, QColor.fromHsv(self.selectedHue, self.selectedSaturation, 255))
self.previewS.setPixmap(QPixmap.fromImage(prevS))
prevV = generateSolidColorPixmap(
200, 300, QColor.fromHsv(self.selectedHue, self.selectedSaturation, self.selectedValue))
self.previewV.setPixmap(QPixmap.fromImage(prevV))
self.lblUpper.setText(
f"H {self.upperHSV[0]}; S {self.upperHSV[1]}; V {self.upperHSV[2]}")
self.lblLower.setText(
f"H {self.lowerHSV[0]}; S {self.lowerHSV[1]}; V {self.lowerHSV[2]}")
self.updateMask()
self.updatePreviewHsvSpace() ## update the rainbow image on the lower left
def updateRawImg(self, img):
self.imgRaw = img
_imgAsQImg = QImage(
self.imgRaw.data, self.imgRaw.shape[1], self.imgRaw.shape[0], QImage.Format_RGB888).rgbSwapped()
# self.previewRaw.setPixmap(QPixmap.fromImage(
# _imgAsQImg).scaledToWidth(self.previewRaw.size().width()))
self.updateImageInLabel(self.previewRaw, _imgAsQImg)
def updateMask(self):
if self.imgRaw is None:
return
frame_threshold = self.inRange2(self.imgRaw)
if self.cboxErode.isChecked():
_kernel = self.sliderErotion.value()
frame_threshold = cv2.erode(frame_threshold, np.ones((_kernel, _kernel), dtype=np.uint8))
if self.cboxDilate.isChecked():
_kernel = self.sliderDilation.value()
frame_threshold = cv2.dilate(frame_threshold, np.ones((_kernel, _kernel), dtype=np.uint8))
self.updateMaskedRaw(frame_threshold)
frame_threshold = cv2.cvtColor(frame_threshold, cv2.COLOR_GRAY2RGB)
_asQImage = QImage(
frame_threshold.data, frame_threshold.shape[1], frame_threshold.shape[0], frame_threshold.shape[1]*3, QtGui.QImage.Format_RGB888)
_asQImage = _asQImage.rgbSwapped()
self.updateImageInLabel(self.previewMask, _asQImage)
def updateMaskedRaw(self, masking):
if self.imgRaw is None:
return
frame_threshold = cv2.bitwise_and(self.imgRaw, self.imgRaw, mask=masking)
_asQImage = QImage(
frame_threshold.data, frame_threshold.shape[1], frame_threshold.shape[0], frame_threshold.shape[1]*3, QtGui.QImage.Format_RGB888)
_asQImage = _asQImage.rgbSwapped()
self.updateImageInLabel(self.previewMaskedRaw, _asQImage)
# =========== EVENT HANDLER ===========
def onWindowsSizeChange(self):
if self.imgRaw is not None:
self.updateRawImg(self.imgRaw)
self.updateMask()
self.updatePreviewHsvSpace()
def onCBoxHInverseChanged(self):
l = self.lowerHSV[0]
h = self.upperHSV[0]
if self.cboxHInverse.isChecked():
self.lblH.setText(str(f"QT5 ({h*2},0,{l*2}) | cv2 ({h},0,{l})"))
else:
self.lblH.setText(str(f"QT5 ({l*2},{h*2}) | cv2 ({l},{h})"))
self.updateHSVPreview()
def onHChanged(self, low_value, high_value):
self.lowerHSV[0] = low_value//2
self.upperHSV[0] = high_value//2
if self.cboxHInverse.isChecked():
self.lblH.setText(str(f"QT5 ({high_value},0,{low_value}) | cv2 ({high_value//2},0,{low_value//2})"))
else:
self.lblH.setText(str(f"QT5 ({low_value},{high_value}) | cv2 ({low_value//2},{high_value//2})"))
self.updateHSVPreview()
def onSChanged(self, low_value, high_value):
self.lowerHSV[1] = low_value
self.upperHSV[1] = high_value
self.lblS.setText(str(f"({low_value},{high_value})"))
self.updateHSVPreview()
def onVChanged(self, low_value, high_value):
self.lowerHSV[2] = low_value
self.upperHSV[2] = high_value
self.lblV.setText(str(f"({low_value},{high_value})"))
self.updateHSVPreview()
def onSliderErodeChanged(self):
self.cboxErode.setText(f"Erode {self.sliderErotion.value()}")
self.updateMask()
def onSliderDilateChanged(self):
self.cboxDilate.setText(f"Dilate {self.sliderDilation.value()}")
self.updateMask()
def onBtnOpenClicked(self):
options = QFileDialog.Options()
fileName, _ = QFileDialog.getOpenFileName(
self, "QFileDialog.getOpenFileName()", "", "All Files (*);;Jpeg (*.jpeg);;BMP (*.bmp)", options=options)
if not fileName:
return
# self.srcQimg = QImage(fileName=fileName, format=QImage.Format_RGB32)
self.updateRawImg(cv2.imread(fileName))
# with open(fileName, 'rb') as f:
# self.updateRawImg(QImage.fromData(f.read()))
def onBtnCopyClicked(self):
if self.cboxHInverse.isChecked():
print("H:({},{})".format(self.upperHSV[0], self.lowerHSV[0]))
else:
print("H:({},{})".format(self.lowerHSV[0], self.upperHSV[0]))
print("S: ({},{})\nV: ({},{})\n==========".format(self.lowerHSV[1], self.upperHSV[1], self.lowerHSV[2], self.upperHSV[2]))
if __name__ == "__main__":
app = QApplication([])
widget = MainWindow()
widget.show()
sys.exit(app.exec_())