使用python将Opencv Mat转储到YAML文件中

Question

Does anyone know how to write a cv2 mat into a YAML file using python ( I am not looking for any loading... just to create a YAML file ). I used the serializer given here , but after many trials I don't know how to dump the image (I'm very new in Python, so that's why I don't get some of the things explained there)

I tried with

img = cv2.imread('Example.jpg',1)
text_file = open('document.yaml', "w")
text_file.write(yaml.dump(img))

and also with the Dumper function from here

img = cv2.imread('seastar.jpg',1)
text_file = open('document.yaml', "w")
text_file.write(dump(img,Dumper=Dumper))

both give me the result: "TypeError: data type not understood"

and (this one tells me that the object is not callable)

img = cv2.imread('seastar.jpg',1)
text_file = file('document.yaml', "w")
yaml.dump(img,text_file)
print yaml.dump(img_text)

Answer 1

Until now I just used numpy, omitting the serialization stuff...

with open(out, 'w') as f:
    yaml.dump(img_d.tolist(), f) 

...But if there was a better way to do it, then I would be very thankful to you guys