labview, ASI SDK and ASI178MM

siriusjason

Hi,

I'm developing a program in labview 2016 x32. I'm running on a win 10 machine.

I have installed relevant drivers and ASI178MM is running fine under sharpcap.

I imported the DLLs into labview. I followed the pseudo code command structure as in the ASICamera2 documentation.

The problem I have is that I am not getting any data from the ASIGetDataAfterExp function.

I run ASIGetExpStatus in a loop until ASI_EXP_SUCCESS is returned which it is. I call ASIGetDataAfterExp next but i cannot retrieve any data. i get a value of 13 from the function return.

I have tried looped calls but it's the same value. I'm not sure if there is an issue with the automatic import to labview or my coding.

I have tried with the last 2 versions of the SDK.

any help would be appreciated.

thank you,

jay

yang

ASIGetDataAfterExp return 13 correspond to ASI_ERROR_BUFFER_TOO_SMALL, means the buffer size you pass in is too small.

siriusjason

Thank you Yang. The program crashed when i increased the buffer but I will try find a work around.

Is there a generic list of possible errors that i can download?

Thank you for your help.

yang

you can refer to the document in our SDK

pasta

Hi there,

i am starting to develop a LabVIEW program to capture, control and display images from my ASI120MC camera. I am using the windows ASICamear2.dll and I succeed to acquire my first char buffer frame. But now I do not know how it is coded and how to display it as an image. Any suggestion ?

I will be happy to see a LabVIEW diagram as an example if any.

Thanks

Pasta

yang

if image type is RAW8 and debayer pattern is RGGB, the data is arranged as:

<---width---> |_

RGRGRGRG.......|

GBGBGBGB.......|height

RGRGRGRG.......|

GBGBGBGB.......|

.....................|__

pasta

Thanks a lot Yang for this information.

And what is the arrangement in mono mode Y8 ?

yang

RGB24 is trsnsformed form RAW8 by interpolation:

<---3*width---> |_

RGB RGB RGB.......|

RGB RGB RGB.......|height

RGB RGB RGB.......|

RGB RGB RGB.......|__

Y8 is transformed from RGB24,every three byte R G B of a pixel is converted to

a mono byte, so data buffer of Y8 is width*height like RAW8.

pasta

Very good !! thanks a lot Yang, I am now able to display an 256x256 Y8 image setting Bin at 3, but not bigger and I do not understand why. Maybe it is because I do not understand what is this Bin parameter. I would appreciate any explanation on this parameter.

Thanks again

yang

bin3 means merging 3x3 pixels to one, the maximum size becomes width/3 and height/3