홈>2020-03-18 11:19

pyqt5 - Python에서 PyQt로 RGB 이미지를 표시하는 방법은 무엇입니까?

rgb_array 라는 3 개의 채널 (RGB)을 가진 행렬 배열이 있습니다 .

PyQt를 사용하여 표시하고 싶습니다.

스택 오버 플로우의 일부 오래된 게시물에 이어 다음 코드를 만들었습니다 ( gym-minigrid )

from PyQt5.QtGui import QPixmap
from PyQt5.QtGui import QImage
from PyQt5.QtWidgets import QLabel
from PyQt5.QtWidgets import QMainWindow, QWidget
class Window(QMainWindow):
    """
    Simple application window to render the environment into
    """
    def __init__(self):
        super().__init__()
        # Image label to display the rendering
        self.imgLabel = QLabel()
        # Create a main widget for the window
        mainWidget = QWidget(self)
        self.setCentralWidget(mainWidget)
        # Show the application window
        self.show()
        self.setFocus()
    def setPixmap(self, pixmap):
        self.imgLabel.setPixmap(pixmap)

rgb_array = ...  # my image
height, width, _ = rgb_array.shape
bytes_per_line = 3 * width
qt_img = QImage(rgb_array.data, width, height, bytes_per_line, QImage.Format_RGB888)
pixmap = QPixmap.fromImage(qt_img)
window = Window()
window.setPixmap(pixmap)

그러나 실행할 때마다 세그먼테이션 오류가 발생합니다. 어떤 아이디어? 감사합니다!

python-3.xpyqt5

답변 # 1

시도 :

from PyQt5.QtGui import QPixmap, QImage
from PyQt5.QtWidgets import QMainWindow, QWidget, QLabel, QApplication, QGridLayout
import cv2
class Window(QMainWindow):
    """
    Simple application window to render the environment into
    """
    def __init__(self):
        super().__init__()
        # Image label to display the rendering
        self.imgLabel = QLabel()
        # Create a main widget for the window
        mainWidget = QWidget(self)
        self.setCentralWidget(mainWidget)
        layout = QGridLayout(mainWidget)        # +
        layout.addWidget(self.imgLabel)         # +
        # Show the application window
#        self.show()
        self.setFocus()
"""
rgb_array = 'im.png'    # my image
height, width, _ = rgb_array.shape
bytes_per_line = 3 * width
qt_img = QImage(rgb_array.data, width, height, bytes_per_line, QImage.Format_RGB888)
pixmap = QPixmap.fromImage(qt_img)
window = Window()
window.setPixmap(pixmap)
"""
if __name__ == '__main__':
    import sys
    rgb_array = cv2.imread('Ok.png')
    rgb_array = cv2.cvtColor(rgb_array, cv2.COLOR_BGR2RGB)
    h, w, ch = rgb_array.shape
    bytesPerLine = ch * w
    qImg = QImage(rgb_array.data, w, h, bytesPerLine, QImage.Format_RGB888)
    app = QApplication(sys.argv)
    w = Window()
    w.imgLabel.setPixmap(QPixmap.fromImage(qImg))
    w.show()
    sys.exit(app.exec_())

Python2.net

pyqt5 - Python에서 PyQt로 RGB 이미지를 표시하는 방법은 무엇입니까?

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