sharedctypes numpy

 

 

import ctypes
from multiprocessing import sharedctypes

import numpy as np
import cv2, multiprocessing
import time

def show_image(images):
    i=0
    while 1:
        if len(images)>i:
            print(i)
            cv2.imshow("a",images[i])
            cv2.waitKey(1)
            i+=1

def make_array(shape=(1,), dtype=np.uint8, shared=False, fill_val=None):
    start = time.time()
    np_type_to_ctype = {np.float32: ctypes.c_float,
                        np.float64: ctypes.c_double,
                        np.bool: ctypes.c_bool,
                        np.dtype('uint8'): ctypes.c_ubyte,
                        np.uint8: ctypes.c_ubyte,
                        np.uint64: ctypes.c_ulonglong}

    if not sha