Depth image seems to be bad

[SamConti]

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Required Info
Camera Model	D435
Operating System & Version	Ubuntu 16
Kernel Version (Linux Only)	4.4.38
Platform	Raspberry Pi
Language	python

Issue Description

Hello,

I try to retrieve image from D435 camera in python but I think my depth image is not good and I don't know why.

Here the image :

And the depth image :

My code is

import pyrealsense2 as rs
pipeline = rs.pipeline()
config=rs.config
config.enable_stream(rs.stream.depth, 1280, 720, rs.format.z16,6)
config.enable_stream(rs.stream.color, 1280, 720, rs.format.rgb8,6)
config.enable_record_to_file("bagfiletest.bag")
pipeline.start()
pipeline.wait_for_frames()
pipeline.stop()

[dorodnic]

Yes, the depth frame is bad.
Did you try skipping couple first frames? Auto-expose needs some time to stabilize.
If this persists, it is possible there is a problem with camera calibration

[SamConti]

Okay, it seems it needs some time to stabilize, but it's a problem.
My final using is to have a bag file each 5mn with one image inside and I send it on a ftp server, if I have to wait for 5s before stopping, bag file is too big (>20Mo) and I have several images into the bag file.
Is there a possibility to take one clean image ?

[dorodnic]

You could try save_single_frameset defined in rs_export.hpp to manually save one specific frame-set.

[SamConti]

Hello,

Thanks for the trail, but is here any documentation for python, all I found is for C++....

[RealSenseCustomerSupport]

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@SamConti Could you please shed more details about what kind of python document you need? For python, we have some examples in https://github.com/IntelRealSense/librealsense/tree/v2.21.0/wrappers/python/examples Maybe you can find more information there. Thanks!

[RealSenseCustomerSupport]

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@SamConti Any other questions for this ticket? Looking forward to your update. Thanks!

[RealSenseCustomerSupport]

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@SamConti If no other questions, will close this ticket accordingly. Please feel free to create new ticket if have other questions. Thanks!

[soarwing52]

@dorodnic @RealSenseCustomerSupport
I tried the save_single_frameset as you mentioned, I can get proper visualized depth image
but when I want to get the depth data, the deproject, there's always only 0.00
#4020 this is my issue