SOLVED! load dark failed 7 - SDK_V0.6.921

hamak

darkframe must be created with http://astronomy-imaging-camera.com/software/ZWO%20ASI%20Cameras%20DirectShow%20driver%20Setup%20V3.0.0.2.exe

AMCap directshow filter as bmp

PS. remember to start Preview before taking darkframe or else the program might hang!

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Update:

I had old version of libASICamera2.so in my /usr/local/lib folder

Now it say load dark ok but it is no difference... hot pixels are still not removed

darkscreen2.png

Is it something wrong with the darkframe?

Here is darkframe and normal black image and normal with dark frame subtraction

http://klo.no/pi/asisnap/dark/dark2.bmp

http://klo.no/pi/asisnap/dark/normal2.jpg

http://klo.no/pi/asisnap/dark/normal2_with_darkframe.jpg

Here is the source code:

asisnap13b.zip

I keep the lens cap on all the time to see if the red and blue dots are removed when applying darkframe. Thats why all images are black but darkframe is raw8bit bmp and the other is normal jpg images.

Br,

Hamak

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Hello

Trying to add dark frame subtraction to asiSnap (next version) but get this error:

load dark failed 7

The code I use is from main_SDK2_snap.cpp

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


	if(err == ASI_SUCCESS)
		printf("load dark ok\n");
	else

printf("load dark failed %d\n", err);

When compiling I get this warning:

capture.cpp: In function ‘int main(int, char**)’:


capture.cpp: warning: deprecated conversion from string constant to ‘char*’

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

When I run the program everything works except dark frame with error code 7?

Here is the dark.bmp http://klo.no/pi/asisnap/dark/dark.bmp

I have attached screenshot when running the program

Hope someone can help with this

yang

Hi, Maybe there is something wrong with the dark frame, how did you make the dark bmp?

hamak

yang wrote:
Hi, Maybe there is something wrong with the dark frame, how did you make the dark bmp?

Hello Yang

I tried to create tree darkframes

one is made with SharpCap but this saves the darkframe as png

then I just took a darkframe from the command line with raw8 bmp and tried to use this

I also created a black image in paint shop pro 3096x2080 and set it to 256 color pallettte and saved it as windows/os2 BMP with rgb colors

all images ecept png, jpg and tiff can be used as darkframe it looks like.

Is it a safe process do create a workable darkframe with bmp?

NB. when I converted the darkframe from SharpCap to bmp it was accepted into the program but none of them works.

screenshop1.jpg

Br,

Hamak

yang

You can make the dark bmp file with our directshow driver:

http://astronomy-imaging-camera.com/software/ZWO%20ASI%20Cameras%20DirectShow%20driver%20Setup%20V3.0.0.2.exe

hamak

yang wrote:
You can make the dark bmp file with our directshow driver:

http://astronomy-imaging-camera.com/software/ZWO%20ASI%20Cameras%20DirectShow%20driver%20Setup%20V3.0.0.2.exe

Hello again Yang

I have now tried this on both windows 7 x64 and windows 10 x64 but the program hangs when trying to take dark frame picture.

Tried with default settings and with the settings I will use: exposure 6s and gain 280 but even default settings hangs the program

Attached zip file from windows 10 machine with pictures of each step

DarkFrame Win10 Fail.zip

What am I doing wrong here?

Br,

Hamak

hamak

hamak wrote:
yang wrote:You can make the dark bmp file with our directshow driver:

http://astronomy-imaging-camera.com/software/ZWO%20ASI%20Cameras%20DirectShow%20driver%20Setup%20V3.0.0.2.exe

Hello again Yang

I have now tried this on both windows 7 x64 and windows 10 x64 but the program hangs when trying to take dark frame picture.

Tried with default settings and with the settings I will use: exposure 6s and gain 280 but even default settings hangs the program

Attached zip file from windows 10 machine with pictures of each step

DarkFrame Win10 Fail.zip

What am I doing wrong here?

Br,

Hamak

I had to enable preview to get it to work. Then save dialog also appeared!

Now I am going to test it on the camera tonight and see if it works

Thanks Yang