关于PyQt5中QtGui.QImage图片显示问题解析

import os.path as osp
import cv2
from qtpy import QtCore
from qtpy import QtWidgets
from qtpy import QtGui


# TracelessLe注：代码示例，不可直接执行

class MainWindow(QtWidgets.QMainWindow):
	def __init__(self):
		self.image = QtWidgets.QLabel()

    def show_img(self, img_path):
        self.image.clear()
        img_np = cv2.imread(img_path)
        width = img_np.shape[1]
        height = img_np.shape[0]
        img_rgb_data = cv2.cvtColor(img_np, cv2.COLOR_BGR2RGB)
        # label_data = QtGui.QImage(img_rgb_data.data, width, height, QtGui.QImage.Format_RGB888)  # 这种方式可能会有部分图片显示有问题
        label_data = QtGui.QImage(img_rgb_data.data, width, height, width*3, QtGui.QImage.Format_RGB888)  # 针对RGB图显示的正确方式
        self.image.setPixmap(QtGui.QPixmap.fromImage(label_data))

label_data = QtGui.QImage(img_rgb_data.data, width, height, width*3, QtGui.QImage.Format_RGB888) 

def __init__(self, data: bytes, width: int, height: int, bytesPerLine: int, format: 'QImage.Format')

def __init__(self, data: bytes, width: int, height: int, format: 'QImage.Format')