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IDProjectCategoryView StatusLast Update
0001851CCdcielGeneralpublic17-11-27 13:47
ReporterThomas Jaeger Assigned ToPatrick Chevalley  
PrioritynormalSeverityminorReproducibilityalways
Status resolvedResolutionno change required 
PlatformPCOSLinuxOS Version64bit
Product Version0.9 
Summary0001851: Binning distortes image geometry
DescriptionSetting binning to the highest value is useful for centering and detection.

If I set binning from 1x1 to 4x4 and back to 1x1, both 1x1 images had a different image geometry. See attached logfile.
Maybe INDI caused.

Thomas
Steps To ReproduceSet Binning to 1x1, capture
Set Binning to 4x4, capture
Set Binning to 1x1, capture

Tagscamera capture

Activities

Thomas Jaeger

17-11-24 20:52

reporter  

Binning Bug.txt (1,876 bytes)   
4656x3520px

4640x3520px
Nicht gespeichertes Dokument 1

20:02:41:CCDciel Version beta 0.9.16-676 initialized
20:02:43:Connecting camera...
20:02:48:Camera connected
20:02:48:Camera frame x=0 y=0 width=4656 height=3520
20:02:48:ZWO CCD ASI1600MM-Cool: [INFO] Setting intital bandwidth to AUTO on connection.
[INFO] CCD is online. Retrieving basic data.
[INFO] The CCD Temperature is 18.000000
20:02:49:ZWO CCD ASI1600MM-Cool: [WARNING] Warning: 16bit RAW is not supported on all hardware platforms.
[WARNING] 16 bit bayer format GRBG it not supported by the SER recorder.
20:02:49:ZWO CCD ASI1600MM-Cool: Set temperature -20.0
20:02:50:Camera cooler True
20:02:50:ZWO CCD ASI1600MM-Cool: Set BlobMode CCD1
20:02:50:ZWO CCD ASI1600MM-Cool: [INFO] Setting CCD temperature to -20.00 C
20:02:51:ZWO CCD ASI1600MM-Cool: Set temperature -20.0
// Start a Capture with 1x1 Binning
20:02:51:Start capture
20:02:51:Starting Light exposure 1 for 1 seconds
20:02:51:ZWO CCD ASI1600MM-Cool: [INFO] Setting CCD temperature to -20.00 C
20:03:03:Saved file /home/starhopper/CCD/Test_1s_1x1_20171124_190302.fits
// got a image with full resolution of the ASI1600: 4656x3520px 
20:03:03:Stop capture
// Start a capture with 4x4 Binning
20:03:15:Start capture
20:03:15:Set Binning 4x4
20:03:15:Starting Light exposure 1 for 1 seconds
20:03:15:Camera frame x=0 y=0 width=4640 height=3520
20:03:18:Saved file /home/starhopper/CCD/Test_1s_4x4_20171124_190318.fits
// got a image with 1160x880pix, ok for me
20:03:18:Stop capture
// Setting binning back to 1x1 and start a capture
20:03:36:Start capture
20:03:36:Set Binning 1x1
20:03:36:Starting Light exposure 1 for 1 seconds
20:03:49:Saved file /home/starhopper/CCD/Test_1s_1x1_20171124_190348.fits
// got an image with a false image geometry of 4640x3520px !!!
20:03:49:Stop capture
20:04:02:ZWO CCD ASI1600MM-Cool: Camera server disconnected


Binning Bug.txt (1,876 bytes)   

Patrick Chevalley

17-11-25 10:18

administrator   ~0004302

Yes, the problem is in the ASI INDI driver.
CCDciel do not touch the frame size when it change the binning because (contrary to ASCOM) the INDI frame size is always given in unbinned pixel.
And setting the same camera size in the indi_simulator_ccd (4656x3520) do not show this problem.

You can activate the driver debug to logfile in the INDI driver and ask in the Indi forum.

I let the issue open for the case I can do something to help with the problem, as sending a CCD_FRAME_RESET when changing to 1x1 and frame is near of the full size, but I prefer if this can be done in the driver.

Thomas Jaeger

17-11-25 10:27

reporter   ~0004303

Thanks for your reply,
I will adress this issue in the INDI Forum, I am a user there.

In CCDciel, I have realised pressing RESET in the Frame Tool solves this problem. But once forgotten, frames got unusable.

Thomas Jaeger

17-11-26 13:29

reporter   ~0004306

Hello Patrick,
Jasem fixed it very fast. Issue ist gone. You can change it to solved.
Thomas

http://indilib.org/forum/ccds-dslrs/2849-asi1600-changing-binning-results-in-false-image-geometry.html#21318

Issue History

Date Modified Username Field Change
17-11-24 20:52 Thomas Jaeger New Issue
17-11-24 20:52 Thomas Jaeger File Added: Binning Bug.txt
17-11-24 20:52 Thomas Jaeger Tag Attached: camera capture
17-11-25 10:18 Patrick Chevalley Assigned To => Patrick Chevalley
17-11-25 10:18 Patrick Chevalley Status new => feedback
17-11-25 10:18 Patrick Chevalley Note Added: 0004302
17-11-25 10:27 Thomas Jaeger Note Added: 0004303
17-11-25 10:27 Thomas Jaeger Status feedback => assigned
17-11-26 13:29 Thomas Jaeger Note Added: 0004306
17-11-27 13:47 Patrick Chevalley Status assigned => resolved
17-11-27 13:47 Patrick Chevalley Resolution open => no change required