Capturing Image from web cam in Python

Question

import cv2.cv as cv 
import numpy as np

Capture = cv.CaptureFromCAM(0)
image = cv.QueryFrame(Capture) #here you have an IplImage
imgarray = np.asarray(image[:,:]) #this is the way I use to convert it to numpy ar

I am using this code to capture image from webcam and i want to show it on canvas,please help.the above code just activates the web cam without any error ,please can you either help may save the IplImage on hard-disk or display it on canvas.Really urgent.This is a part of the project i am doing. Help will be appreciated

I used this code using pygame

import pygame
import pygame.camera
from pygame.locals import *
import pygame.image

pygame.init()
pygame.camera.init()

camlist = pygame.camera.list_cameras()
cam = pygame.camera.Camera(camlist[0],(640,480))

if camlist:
    cam = pygame.camera.Camera(camlist[0],(640,480))
cam.start()
image = cam.get_image()

I used this code to capture image from web cam and do the same but,it does not do anything please help me either store the image on hard-disk or display it on canvas

please avoid the old cv (or cv2.cv) module. it won't be there anmore in near future. — berak
– berak, Commented Aug 18, 2014 at 8:53

Vipul · Accepted Answer · 2014-08-18 08:58:57Z

2

import cv2
cam = cv2.VideoCapture(0)
winName = "image"
cv2.namedWindow(winName, cv2.CV_WINDOW_AUTOSIZE)
s, im = cam.read() # captures image
cv2.imshow(winName, im) # displays captured image
cv2.imwrite("test.bmp",im) # writes image test.bmp to disk
cv2.waitKey()

answered Aug 18, 2014 at 8:58

Vipul

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2 Comments

ishaan arora Over a year ago

thanks of great help ,just one more thing can i use more such images and display it on tkinter widget.otherwise thanks brother

Vipul Over a year ago

I don't know about Tkinter much.. but once you save the captured then it'll be just like any other image so you can display it on tkinter widget

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