Question

我已经附加了我正在修改的部分代码。我想使用Tkinter创建一个按钮，根据我使用按钮（A或B）的选项，我想在行cv_image = image[:,:,:]中调整图像大小。

这样做的最佳方法是什么。提前谢谢。

class image_converter:

  def __init__(self):
    print 'show window'
    cv2.namedWindow("Image window", 1)
    print 'start bridge and subscribe'
    self.bridge = CvBridge()
    print Image
    self.image_sub = rospy.Subscriber("/MDS_CamServer/camera/image",Image,self.callback)
    self.save = False;
    self.count=0;
    self.X=np.array([[]]);
    self.y=np.array([[]]);
    self.X_new=np.array([[]]);
    self.y_new=np.array([[]]);

  def callback(self,data):
    try:
      image = self.bridge.imgmsg_to_cv2(data, "bgr8")
    except CvBridgeError, e:
      print e

    cv_image = image[:,:,:];


def main(args):
  ic = image_converter()
  rospy.init_node('image_converter', anonymous=True)
  try:
    rospy.spin()
  except KeyboardInterrupt:
    print "Shutting down"
  cv2.destroyAllWindows()

if __name__ == '__main__':
    main(sys.argv)

Answer 1

您应创建一个单选按钮，以选择用户想要选择A或B的选项，然后选择将用户重定向到特定宽度

Answer 2

您可以尝试使用此代码段

self.v1 = IntVar()
Label(master, text="""resize the image in the line with """,justify = LEFT, padx = 20).pack()
Radiobutton(master, text="A",padx = 20, variable=self.v1, value=1).pack(anchor=W)
Radiobutton(master, text="B", padx = 20, variable=self.v1, value=2).pack(anchor=W)
if self.v2.get() == 1:
   Imgwidth = 100 #specify it as per A
else:
   Imgwidth = 200 #specify it as per B
Imgheight = 100#just specify or use original 
image = Image.open(Image_Location)
image = image.resize((Imgheight, Imgwidth), Image.ANTIALIAS) #The (250, 250) is (height, width)
self.pw.pic = ImageTk.PhotoImage(image)

使用Tkinter创建一个按钮

2 个答案: