Python 实现opencv所使用的图片格式与 base64 转换

def image_to_base64(image_np):
 
 image = cv2.imencode('.jpg',image_np)[1]
 image_code = str(base64.b64encode(image))[2:-1]
 
 return image_code

def base64_to_image(base64_code):
 
 # base64解码
 img_data = base64.b64decode(base64_code)
 # 转换为np数组
 img_array = np.fromstring(img_data, np.uint8)
 # 转换成opencv可用格式
 img = cv2.imdecode(img_array, cv2.COLOR_RGB2BGR)
 
 return img