Python OSC

andrea0913 · Nov-20-2017, 11:52 PM

So, i'm using this python OSC https://pypi.python.org/pypi/python-osc

I see the example and try to replicate it with my code, but i'm havin a syntax problem with a line that's been used on the example.

import argparse
import numpy as np
import cv2

from pythonosc import osc_message_builder
from pythonosc import udp_client

frame = cv2.VideoCapture(0)

#frame.set(cv2.CV_CAP_PROP_FRAME_WIDTH,320);
#frame.set(cv2.CV_CAP_PROP_FRAME_HEIGHT,240);

disponible,fotograma = frame.read()
newfotograma = cv2.resize (fotograma,(320,240))
alto, ancho, channel = newfotograma.shape

altoC, anchoC, channelC = fotograma.shape

AnteriorGray = cv2.cvtColor(newfotograma, cv2.COLOR_BGR2GRAY)

parser = argparse.ArgumentParser()
parser.add_argument("--ip", default="127.0.0.1",
#help="The ip of the OSC server")
parser.add_argument("--port", type=int, default=12347,
#help="The port the OSC server is listening on")
args = parser.parse_args()
            
client = udp_client.SimpleUDPClient(args.ip, args.port)  #this line has a syntax error but is from the example



def draw_flow(w,h,flow, step=1):
    emptyImg = cv2.resize(img,(w,h))

    for j in range (0,alto,step):
        for i in range (0,ancho,step):
            U=flow.item(j,i,0)
            V=flow.item(j,i,1)
            SX=int(i+U)
            SY=int(j+V)
            #cv2.line(emptyImg,(i*2,j*2),(SX*2,SY*2),(255,0,0))
            cv2.line(emptyImg,(i*2,480),(SX*2,300),(SY,SY,SY))
            cv2.line(emptyImg,((i+10)*2,480),((SX+10)*2,SY+300),(SX,SX,SX))
            cv2.line(emptyImg,((i+5)*2,480),((SX+5)*2,SY+300),(SX,SX,SX))
            #cv2.line(emptyImg,(0,0),(20,20),(0,0,255))
            #print ("U",U)
            #print ("i",i)
            #print ("SX",SX)
            
            if( 0<i<25 and (U>1) ):
                enviando = 12
                print(enviando)
                client.send_message("/actuador2", enviando()
            if(25<i<50 and U>1):
                print(13)
            if(50<i<75 and U>1):
                print(14)    
            if(75<i<100 and U>1):
                print(15)
            if(100<i<125 and U>1):
                print(16)
            if(125<i<150 and U>1):
                print(17)
            if(150<i<175 and U>1):
                print(18)
            if(175<i<200 and U>1):
                print(19)
            if(200<i<225 and U>1):
                print(20)
            if(225<i<250 and U>1):
                print(21)
            if(250<i<275 and U>1):
                print(22)
            if(275<i<300 and U>1):
                print(23)

    return emptyImg


while True:
    key  = cv2.waitKey(1)
    disponible, img = frame.read()
    newimg = cv2.resize (img,(320,240))
    ActualGray = cv2.cvtColor(newimg, cv2.COLOR_BGR2GRAY)

    if(disponible==True):
        
        
        
        flow = cv2.calcOpticalFlowFarneback(AnteriorGray, ActualGray, None, 0.5, 3, 15, 3, 5, 1.2, 0) 
        salida = draw_flow(640,480,flow,20)
        

                
        cv2.imshow("Flow",salida)
        cv2.imshow ( "pequeña", newimg)
        AnteriorGray = ActualGray
        
        if __name__ == "__main__":
            parser = argparse.ArgumentParser()
            parser.add_argument("--ip", default="127.0.0.1",
                                help="The ip of the OSC server")
            parser.add_argument("--port", type=int, default=12347,
                                help="The port the OSC server is listening on")
            args = parser.parse_args()
            
            client = udp_client.SimpleUDPClient(args.ip, args.port)


    client.send_message("/filter", enviando())

                
        
    if key == ord('q'):
        break;
        
frame.release()
cv2.destroyAllWindows()

Any one can help me?

***sparkz_alot*** · Nov-21-2017, 02:23 AM

Please post the error code, in it's entirety (between the error tags, please)

andrea0913 · Nov-21-2017, 04:12 AM

import argparse
import numpy as np
import cv2
 
from pythonosc import osc_message_builder
from pythonosc import udp_client
 
frame = cv2.VideoCapture(0)
 
#frame.set(cv2.CV_CAP_PROP_FRAME_WIDTH,320);
#frame.set(cv2.CV_CAP_PROP_FRAME_HEIGHT,240);
 
disponible,fotograma = frame.read()
newfotograma = cv2.resize (fotograma,(320,240))
alto, ancho, channel = newfotograma.shape
 
altoC, anchoC, channelC = fotograma.shape
 
AnteriorGray = cv2.cvtColor(newfotograma, cv2.COLOR_BGR2GRAY)
 
parser = argparse.ArgumentParser()
parser.add_argument("--ip", default="127.0.0.1",
#help="The ip of the OSC server")
parser.add_argument("--port", type=int, default=12347,
#help="The port the OSC server is listening on")
args = parser.parse_args()
            
[error]

client = udp_client.SimpleUDPClient(args.ip, args.port)  #this line has a syntax error but is from the example

[/error]

 
 
 
def draw_flow(w,h,flow, step=1):
    emptyImg = cv2.resize(img,(w,h))
 
    for j in range (0,alto,step):
        for i in range (0,ancho,step):
            U=flow.item(j,i,0)
            V=flow.item(j,i,1)
            SX=int(i+U)
            SY=int(j+V)
            #cv2.line(emptyImg,(i*2,j*2),(SX*2,SY*2),(255,0,0))
            cv2.line(emptyImg,(i*2,480),(SX*2,300),(SY,SY,SY))
            cv2.line(emptyImg,((i+10)*2,480),((SX+10)*2,SY+300),(SX,SX,SX))
            cv2.line(emptyImg,((i+5)*2,480),((SX+5)*2,SY+300),(SX,SX,SX))
            #cv2.line(emptyImg,(0,0),(20,20),(0,0,255))
            #print ("U",U)
            #print ("i",i)
            #print ("SX",SX)
             
            if( 0<i<25 and (U>1) ):
                enviando = 12
                print(enviando)
                client.send_message("/actuador2", enviando()
            if(25<i<50 and U>1):
                print(13)
            if(50<i<75 and U>1):
                print(14)    
            if(75<i<100 and U>1):
                print(15)
            if(100<i<125 and U>1):
                print(16)
            if(125<i<150 and U>1):
                print(17)
            if(150<i<175 and U>1):
                print(18)
            if(175<i<200 and U>1):
                print(19)
            if(200<i<225 and U>1):
                print(20)
            if(225<i<250 and U>1):
                print(21)
            if(250<i<275 and U>1):
                print(22)
            if(275<i<300 and U>1):
                print(23)
 
    return emptyImg
 
 
while True:
    key  = cv2.waitKey(1)
    disponible, img = frame.read()
    newimg = cv2.resize (img,(320,240))
    ActualGray = cv2.cvtColor(newimg, cv2.COLOR_BGR2GRAY)
 
    if(disponible==True):
         
         
         
        flow = cv2.calcOpticalFlowFarneback(AnteriorGray, ActualGray, None, 0.5, 3, 15, 3, 5, 1.2, 0) 
        salida = draw_flow(640,480,flow,20)
         
 
                 
        cv2.imshow("Flow",salida)
        cv2.imshow ( "pequeña", newimg)
        AnteriorGray = ActualGray
         
        if __name__ == "__main__":
            parser = argparse.ArgumentParser()
            parser.add_argument("--ip", default="127.0.0.1",
                                help="The ip of the OSC server")
            parser.add_argument("--port", type=int, default=12347,
                                help="The port the OSC server is listening on")
            args = parser.parse_args()
             
            client = udp_client.SimpleUDPClient(args.ip, args.port)
 
 
    client.send_message("/filter", enviando())
 
                 
         
    if key == ord('q'):
        break;
         
frame.release()
cv2.destroyAllWindows()

this is where i'm havin syntax error

**Larz60+** · Nov-21-2017, 12:09 PM

On every line?

It would be most helpful to indicate where the error is occurring, that's why sparkz_alot
asked for the full traceback, which indicates not only the suspected error line, but what the
execution sequence of the code was as well.

It is most helpful, and almost a necessity for debugging.

**buran** · (This post was last modified: Nov-21-2017, 12:30 PM by buran.)

first of all - sparkz_alot and Larz60+ are correct - always post the full traceback in error tags. As to the particular problem - do you really have lines 23 and 25 commented? if yes, it assumes everything between lines 22-26 is a single line and gives you syntax error. remove the # from line 23 and 25

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