tiago camera render range #44

```
import rclpy
from rclpy.node import Node
from geometry_msgs.msg import Point
from std_msgs.msg import Int16
from sensor_msgs.msg import Image, CameraInfo
import cv2
import numpy as np
class SaveImg(Node):
 def __init__(self):
 super().__init__('save_img')
 self.subscription_1 = self.create_subscription(Image,'/head_front_camera/rgb/image_raw',self.save_img,10)
 self.subscription_2 = self.create_subscription(CameraInfo,'/head_front_camera/rgb/camera_info',self.print_camera_info,10)
 def save_img(self, msg):
 img = np.asarray(msg.data).reshape(msg.height,msg.width,3)
 self.get_logger().info(str(img.shape))
 res = cv2.imwrite("1.jpg", img)
 self.get_logger().info('image saved ?: "%s"' % res)
 def print_camera_info(self, msg):
 self.get_logger().info('K matrix: "%s"' % msg.k)
 self.get_logger().info('D matrix: "%s"' % msg.d)
 self.get_logger().info('height: "%s"' % msg.height)
 self.get_logger().info('width: "%s"' % msg.width)
 self.get_logger().info('distortion_model: "%s"' % msg.distortion_model)
def main(args=None):
 rclpy.init(args=args)
 node = SaveImg()
 rclpy.spin(node)
 # Destroy the node explicitly
 # (optional - otherwise it will be done automatically
 # when the garbage collector destroys the node object)
 node.destroy_node()
 rclpy.shutdown()
if __name__ == '__main__':
 main()
```