直接上程式碼： 

#coding: utf-8
#python3
import cv2
import base64
from PIL import Image
from io import BytesIO

def frame2base64(frame):
    img = Image.fromarray(frame) #將每一幀轉為Image
    output_buffer = BytesIO() #建立一個BytesIO
    img.save(output_buffer, format='JPEG') #寫入output_buffer
    byte_data = output_buffer.getvalue() #在記憶體中讀取
    base64_data = base64.b64encode(byte_data) #轉為BASE64
    return base64_data #轉碼成功 返回base64編碼

def generate():
    camera = cv2.VideoCapture(0)
    try:
        while True:
            ret, frame = camera.read()
            gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
            cv2.imshow("camera", frame)
            base64_data = frame2base64(frame)
            print(base64_data)
            if cv2.waitKey(1) & 0xFF == ord("q"):
                break
    except Exception as e:
        print(e)
    finally:
        # 釋放資源
        camera.release()
        cv2.destroyAllWindows()

if __name__ == '__main__':            
    generate()