多次flask extract的话，旧的就被新的覆盖了？可以累加起来吗？

Hi,

Hope you are all well !

I was wondering if SoTu is able to make these 2 points:

Detection of multiple occurrences of the same picture

For example, based on find-object, being able to detect multiple occurences of the same object.

Many objects detection

Another example, still based on find-object](https://github.com/introlab/find-object), to detect many objects in a scene.

Thanks in advance for your insights and inputs on these topics.

Cheers,
X

File "/home/brandon/SoTu/venv/lib/python3.6/site-packages/werkzeug/serving.py", line 270, in run_wsgi
execute(self.server.app)
File "/home/brandon/SoTu/venv/lib/python3.6/site-packages/werkzeug/serving.py", line 258, in execute
application_iter = app(environ, start_response)
File "/home/brandon/SoTu/venv/lib/python3.6/site-packages/flask/app.py", line 1997, in call
return self.wsgi_app(environ, start_response)
File "/home/brandon/SoTu/venv/lib/python3.6/site-packages/flask/app.py", line 1978, in wsgi_app
ctx.push()
File "/home/brandon/SoTu/venv/lib/python3.6/site-packages/flask/ctx.py", line 332, in push
self.session = self.app.open_session(self.request)
File "/home/brandon/SoTu/venv/lib/python3.6/site-packages/flask/app.py", line 912, in open_session
return self.session_interface.open_session(self, request)
File "/home/brandon/SoTu/venv/lib/python3.6/site-packages/flask/sessions.py", line 324, in open_session
s = self.get_signing_serializer(app)
File "/home/brandon/SoTu/venv/lib/python3.6/site-packages/flask/sessions.py", line 321, in get_signing_serializer
signer_kwargs=signer_kwargs)
File "/home/brandon/SoTu/venv/lib/python3.6/site-packages/itsdangerous.py", line 519, in init
self.is_text_serializer = is_text_serializer(serializer)
File "/home/brandon/SoTu/venv/lib/python3.6/site-packages/itsdangerous.py", line 69, in is_text_serializer
return isinstance(serializer.dumps({}), text_type)
File "/home/brandon/SoTu/venv/lib/python3.6/site-packages/flask/sessions.py", line 85, in dumps
return json.dumps(_tag(value), separators=(',', ':'))
File "/home/brandon/SoTu/venv/lib/python3.6/site-packages/flask/json/init.py", line 177, in dumps
_dump_arg_defaults(kwargs)
File "/home/brandon/SoTu/venv/lib/python3.6/site-packages/flask/json/init.py", line 98, in _dump_arg_defaults
bp.json_encoder if bp and bp.json_encoder
AttributeError: 'Blueprint' object has no attribute 'json_encoder'

Traceback (most recent call last):
File "c:\users\administrator\appdata\local\programs\python\python35\lib\runpy.py", line 184, in _run_module_as_main
"main", mod_spec)
File "c:\users\administrator\appdata\local\programs\python\python35\lib\runpy.py", line 85, in run_code
exec(code, run_globals)
File "D:\SoTu\venv\Scripts\flask.exe_main.py", line 7, in
File "d:\sotu\venv\lib\site-packages\flask\cli.py", line 966, in main
cli.main(prog_name="python -m flask" if as_module else None)
File "d:\sotu\venv\lib\site-packages\flask\cli.py", line 586, in main
return super(FlaskGroup, self).main(*args, **kwargs)
File "d:\sotu\venv\lib\site-packages\click\core.py", line 782, in main
rv = self.invoke(ctx)
File "d:\sotu\venv\lib\site-packages\click\core.py", line 1259, in invoke
return _process_result(sub_ctx.command.invoke(sub_ctx))
File "d:\sotu\venv\lib\site-packages\click\core.py", line 1066, in invoke
return ctx.invoke(self.callback, **ctx.params)
File "d:\sotu\venv\lib\site-packages\click\core.py", line 610, in invoke
return callback(*args, **kwargs)
File "D:\SoTu\venv\vision\bof.py", line 32, in extract
self.extract()
File "D:\SoTu\venv\vision\bof.py", line 81, in extract
prj_all = np.vstack([prj for prj in projections])
File "d:\sotu\venv\lib\site-packages\numpy\core\shape_base.py", line 234, in vstack
return _nx.concatenate([atleast_2d(_m) for _m in tup], 0)
MemoryError