PythonコードをiOS用にビルドしたい

"/Users/name/Desktop/kivy/camera_001-ios/YourApp/main.py", line 6, in <module>
 ModuleNotFoundError: No module named 'cv2'

from kivy.app import App
from kivy.uix.widget import Widget
from kivy.uix.image import Image
from kivy.graphics.texture import Texture
from kivy.clock import Clock
import cv2
from kivy.uix.behaviors import ButtonBehavior
from kivy.properties import ObjectProperty


class MainScreen(Widget):
    pass

class MyCameraApp(App):
    def build(self):
        return MainScreen()
    
class CameraPreview(Image):
    def __init__(self,**kwargs):
        super(CameraPreview,self).__init__(**kwargs)
        self.capteru = cv2.VideoCapture(0)
        Clock.schedule_interval(self.update, 1.0 / 30)
        
    def update(self,dt):
        ret, self.frame = self.capteru.read()
        
        buf = cv2.flip(self.frame,0).tostring()
        texture = Texture.create(size =(self.frame.shape[1],self.frame.shape[0]),colorfmt = "bgr")
        texture.blit_buffer(buf, colorfmt="bgr",bufferfmt="ubyte")
        self.texture = texture
        
class ImageButton(ButtonBehavior,Image):
    preview = ObjectProperty(None)
    
    def on_press(self):
        cv2.namedWindow("CV2 Image")
        cv2.imshow("CV2 Image",self.preview.frame)
        cv2.waitKey(0)
        cv2.destroyAllWindows()     
        
        

if __name__ == '__main__':
    MyCameraApp().run()