def show_frame(self):
frame = cv2.flip(self._engine.canvas, 1)
cv2image = cv2.cvtColor(frame, cv2.COLOR_BGR2RGBA)
img = Image.fromarray(cv2image)
imgtk = ImageTk.PhotoImage(image=img)
self._lmain.imgtk = imgtk
self._lmain.configure(image=imgtk)
self._lmain.after(10, self.show_frame)
def cv2ImgAddText(self,
img,
text,
left,
top,
textColor=(0, 255, 0),
textSize=20):
if (isinstance(img, numpy.ndarray)): # 判断是否OpenCV图片类型
img = Image.fromarray(cv2.cvtColor(img, cv2.COLOR_BGR2RGB))
# 创建一个可以在给定图像上绘图的对象
draw = ImageDraw.Draw(img)
# 字体的格式
fontStyle = ImageFont.truetype("font/simsun.ttc",
textSize,
encoding="utf-8")
# 绘制文本
draw.text((left, top), text, textColor, font=fontStyle)
# 转换回OpenCV格式
return cv2.cvtColor(numpy.asarray(img), cv2.COLOR_RGB2BGR)
