AsiSnap v1.4 Command Line Capture from Raspberry Pi

hamak

Updated 11.Oct.2017

AsiSnap v1.4 released

- Dark Frame Subtraction is working. -drk 0 = Diabled, 1= Enabled

- Added Set Region Of Interest (ROI). To center 1920x1080 on azi178mc. -rox 588 -roy 500

- Updated with the new SDK v0.6.0921. works with raspberry pi 2/3

asiSnap14.png

Full source code included in zip file

asisnap14.zip

Hello there

This is what my Raspberry Pi3 with asiSnap v1.4 does today: http://aurora.klo.no

NB. This project are without GUI, no X-Server and suited for light-weighted and embedded systems when finished!

It was created as a All-Sky Camera Command Line Tool for Raspberry Pi 2 and 3

I have used the latest SDK from ZWO that will work on Minibian and Rasbian lite.

When everything is installed it uses 976MB on MicroSD, 34MB RAM on boot and 160MB RAM when running.

Full Working Setup from clean image with minibian https://minibianpi.wordpress.com/download/

IMPORTANT! Remember there is no sudo installed on minibian image so you are running as root

Default username root and password raspberry

apt-get install -y raspi-config nano # I NOW use raspi-config to expand microsd and reboot

apt-get update # Update RPi

apt-get install -y libopencv-dev fbi zip # Install OpenCV and fbi image viewer

unzip asisnap14.zip # Extract all files to YOUR directory

cp libASICamera2.so /usr/local/lib # Copy this file to avoid error when compiling

ldconfig -v # Load config

./asiSnap

fbi -T 2 image.jpg # If connected by SSH with HDMI screen connected to RPi

fbi image.jpg # Run this if directly connected to RPi with HDMI screen

Known Issues:

When disabling DarkFrame Subtraction with you need to rename dark.bmp or else it still will use it.

If someone know how to fix this issue please tell me so I can change the code and put it out here.

PS. When you have modified the source code, capture.cpp, just run ./make.sh to compile your code again and run ./asiSnap program again with all the switches you like or need.

My short but true story!

I started learning C/C++ saturday 15.october.2016 when i found the article of Thomas Jacquin's Allsky camera on the web ;-)

http://www.instructables.com/id/Wireless-All-Sky-Camera/?ALLSTEPS

chad

Hi hamak，

Well done, thanks for sharing!

Please contact us if you have any questions.

Thanks

chad

hotblack43

Hi,

I am very glad to find asisnap 1.2 and 1.4. I have a ZWO ASI224MC camera and I am setting it up for night-sky observations. In trying out various softwares I realised the need for a command line programme, just like asisnap.

I have now used asisnap 1.2 for a while. I did have problems with the shared object libASICamera2 not being in my libraries but worked out what to do after a while - I found libASICamera2.a among the files that are installed when PHD2 is installed and copied it to my /usr/lib/. asisnap1.2 then proceeds to work.

I have now seen that asisnap1.4 is available and tried to install it - but make.sh does not compile it - it looks like problems with openCV? Anyway, I cannot solve those problems - but still want to try version 1.4 - however, unlike version 1.2 there is no compiled executable provided in the zip file, which was provided in 1.2 - so I cannot try out 1.4!

Any suggestions on how I can get the compiled executable for 1.4?

Any suggestions on why running make.sh generates so many errors? I did install openCV2 on my raspberry (it takes a whole day, but made no, apparent, difference).

All ideas and suggestions are very welcome!

Cheers,

Peter Thejll

Denmark

hotblack43

Hi, not sure I understand. Where does the asisnap14.zip file come from? There is not ftp in the minibian image ... and if I did manage to get the zip file, do I extract it as root or as a non-root user?

Peter Thejll

Denmark

martingoedbloed

Hi,

Initially the asiSnap application couldn't be build from source.

Don't think "capture.cpp" contains a real error, but the version of raspbian/gcc wasnt able to create an executable from it.

Used version:

OS : 9.4

G++: gcc version 6.3.0 20170516 (Raspbian 6.3.0-18+rpi1+deb9u1)

On line 398, the string "dark.jpg" must be casted as char* for a succesfull compile.

- ASI_ERROR_CODE err = ASIEnableDarkSubtract(CamNum, "dark.bmp");

+ ASI_ERROR_CODE err = ASIEnableDarkSubtract(CamNum, (char*)"dark.bmp");

Haven't tested if the DarkSubstract functionality also works with this fix, but will test it soon.

Thanks,

Martin

hotblack43

Hi,

the fix by MartinGoedbloed (thanks for the post!) gets rid of the compile warning, and the code appears to work.

The posted 'known issues' was this:

Known Issues:

When disabling DarkFrame Subtraction with you need to rename dark.bmp or else it still will use it.

If someone know how to fix this issue please tell me so I can change the code and put it out here.

I do not have a dark.bmp file, and the code ran without problems ... so does this mean that IF I had dark.bmp it would not be used if I have 'drk -0'?

Happy to do my own dark subtraction, though!

Cheers,

Peter Thejll

martingoedbloed

Hi,

I've went through the sourcecode of capture.cpp and the library header file, but can't see any reason that the presence of the 'dark.bmp' file actually enables/disables this mode (the option -drk 0/1 seems to do all the work).

I've found that the setting is stored in the registry (those poor windows users....), and that (forcefully) disabling the option seems to be the workaround.

File : ASICamera2.h

Function : ASIEnableDarkSubtract(int iCameraID, char *pcBMPPath)

==> it will be remembered in registry. so "Dark subtract" is on next time if you close your app.

Function : ASIDisableDarkSubtract(int iCameraID)

==> Disable the dark subtract function.

==> you'd better call it at start if you don't want to use it.

==> because dark subtract function is remembered on windows platform

Gt's

Martin

hotblack43

Hi,

having now been able to compile asisnap1.4 for RPi I wanted to also run asisnap on Ubuntu.

However, when I try to run the make.sh file I get errors

/usr/bin/ld: skipping incompatible //usr/local/lib/libASICamera2.so when searching for -lASICamera2

/usr/bin/ld: cannot find -lASICamera2

Not sure what is going on here - should I find a version of libASICamera.so that is 'intended for Ubuntu and not Raspian'? Not sure that sentence makes sense ...

I can add that trying the above on Macos (High Sierra) works just fine.

Peter Thejll

laheller

Hello @hamak

Is it possible to:

1. redirect stream from camera to standard output instead of file?

2. make this work also on Ubuntu Desktop Linux?

BR,

Ladislav