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111 lines
4.0 KiB
111 lines
4.0 KiB
import cv2
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from PyQt5.QtGui import *
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from PyQt5.QtWidgets import *
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# 子窗口布局
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from sub_windows import ui_sub_window_1
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class SubWindow(QMainWindow):
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def __init__(self):
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super().__init__(parent=None)
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self.ui = ui_sub_window_1.Ui_Form()
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self.ui.setupUi(self)
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self.ui_init()
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self.cv_srcImage = None
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self.q_image = None
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def ui_init(self):
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self.ui.pushButton_open_file.clicked.connect(self.open_file)
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self.ui.pushButton_gray_convert.clicked.connect(self.gray_convert)
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self.ui.pushButton_bin_convert.clicked.connect(self.bin_convert)
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self.ui.pushButton_reset.clicked.connect(self.reset)
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def open_file(self):
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file_path, file_type = QFileDialog.getOpenFileName(
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QFileDialog(), "选择图片", "", "图像文件(*.jpg *.bmp *.png)"
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)
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self.cv_srcImage = cv2.imread(file_path)
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if self.cv_srcImage is not None:
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height, width, channels = self.cv_srcImage.shape
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ui_image = QImage(
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cv2.cvtColor(self.cv_srcImage, cv2.COLOR_BGR2RGB),
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width,
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height,
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QImage.Format_RGB888,
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)
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if width > height:
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ui_image = ui_image.scaledToWidth(self.ui.label_image.width())
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else:
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ui_image = ui_image.scaledToHeight(self.ui.label_image.height())
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self._update_qimage_to_label(ui_image)
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self._show_image_information(1)
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self._set_pushbutton_enabled()
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def gray_convert(self):
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gray_image = cv2.cvtColor(self.cv_srcImage, cv2.COLOR_BGR2GRAY)
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height, width = gray_image.shape
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ui_image = QImage(
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cv2.cvtColor(gray_image, cv2.COLOR_BGR2RGB),
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width,
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height,
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QImage.Format_RGB888,
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)
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if width > height:
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ui_image = ui_image.scaledToWidth(self.ui.label_image.width())
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else:
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ui_image = ui_image.scaledToHeight(self.ui.label_image.height())
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self._update_qimage_to_label(ui_image)
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self._show_image_information(2)
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def bin_convert(self):
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threshold_value = int(self.ui.spinBox_bin_threshold.value())
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gray_image = cv2.cvtColor(self.cv_srcImage, cv2.COLOR_BGR2GRAY)
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ret, bin_image = cv2.threshold(
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gray_image, threshold_value, 255, cv2.THRESH_BINARY
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)
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height, width = bin_image.shape
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ui_image = QImage(
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cv2.cvtColor(bin_image, cv2.COLOR_BGR2RGB),
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width,
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height,
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QImage.Format_RGB888,
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)
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if width > height:
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ui_image = ui_image.scaledToWidth(self.ui.label_image.width())
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else:
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ui_image = ui_image.scaledToHeight(self.ui.label_image.height())
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self._update_qimage_to_label(ui_image)
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self._show_image_information(3)
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def reset(self):
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height, width, channels = self.cv_srcImage.shape
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ui_image = QImage(
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cv2.cvtColor(self.cv_srcImage, cv2.COLOR_BGR2RGB),
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width,
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height,
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QImage.Format_RGB888,
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)
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if width > height:
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ui_image = ui_image.scaledToWidth(self.ui.label_image.width())
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else:
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ui_image = ui_image.scaledToHeight(self.ui.label_image.height())
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self._update_qimage_to_label(ui_image)
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self._show_image_information(1)
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def _update_qimage_to_label(self, qimage):
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self.ui.label_image.setPixmap(QPixmap.fromImage(qimage))
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def _show_image_information(self, current_image_type):
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if current_image_type == 1:
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self.ui.label_color_space_2.setText("彩色图")
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if current_image_type == 2:
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self.ui.label_color_space_2.setText("灰度图")
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if current_image_type == 3:
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self.ui.label_color_space_2.setText("二值图")
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def _set_pushbutton_enabled(self):
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self.ui.pushButton_gray_convert.setEnabled(True)
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self.ui.pushButton_bin_convert.setEnabled(True)
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self.ui.pushButton_reset.setEnabled(True)
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