Re: [micro-manager-general] Spam (12.997):Re: Tethered cam and Multi D Acq

[Carlos G M. <tr...@ac...>]

Seems I'm the only one interested in a Canon camera, but for the record,
I'm making progress...

Carlos G Mendioroz @ 14/03/2020 18:34 -0300 dixit:
> Carlos G Mendioroz @ 17/02/2020 11:24 -0300 dixit:
>> Hi,
>> I must be doing something very dumb, but I'm lost.
>> I'm trying to provide a realtime pin intensity graph for a group that is
>> using a microscope. In order to develop this, I've setup a uManager VM
>> using a Canon 40D via DSLRRemote.
>>
>> This sort of works, I can snap, but when I do a time series (using
>> Multi-D Acq with, say, 10 x 200ms snaps) the resulting ImageJ window
>> shows 10 identical snaps, even though my "subject" is changing.
>>
>> When viewing the ImageJ info, it says 1 channel, 1 slice, 1 frame, even
>> though I acn "play" it at different fps... it's not a stack either.
>>
>> Help ?
>>
> 
> Follow up:
> I've tried running a small script (from example) to see what's going on
> and I'm puzzled.
> Script:
> ----------------------------------------------------
> import ij.ImagePlus;
> import org.micromanager.data.Coords;
> import org.micromanager.data.Image;
> import org.micromanager.data.Datastore;
> import org.micromanager.display.DisplayWindow;
> 
> //print("Live measurements");
> Datastore store = mm.data().createRAMDatastore();
> DisplayWindow display = mm.displays().createDisplay(store);
> mmc.snapImage();
> TaggedImage tmp = mmc.getTaggedImage();
> image1 = mm.data().convertTaggedImage(tmp);
> image1 = image.copyAtCoords(image.getCoords().copy().channel(0).build());
> store.putImage(image1);
> 
> mmc.sleep(1000);
> 
> mmc.snapImage();
> tmp = mmc.getTaggedImage();
> image2 = mm.data().convertTaggedImage(tmp);
> image2 = image.copyAtCoords(image.getCoords().copy().channel(1).build());
> store.putImage(image2);
> 
> //store.save(Datastore.SaveMode.MULTIPAGE_TIFF, display);
> ---------------------------------------------
> 
> Granted, I do not know now what is really needed, but:
> -store.save() is not recognized as a valid method (from example, not
> important)
> -when the first snap is taken, I can see it in the display, but when
> second snap gets added it somehow replaces #1 too, so I end up with a
> store that has two identical images.
> 
> Somewhere there is a buffer being reused and store does not create a copy ?
> Help ?
> 

I've cleaned up my script quite a bit, after RTFM:
---------------------------------------------------
now = 0;
images = mm.live().snap(false);
image = images.get(0);

cbuilder = image.getCoords().copy();
dstore = mm.displays().show(image.copyAtCoords(cbuilder.time(now).build()));

mmc.sleep(5000);

now++;
images = mm.live().snap(false);
image = images.get(0);

dstore.putImage(image.copyAtCoords(cbuilder.time(now).build()));
---------------------------------------------------

(Lesson learned: coord indexes the images on the store, and even though
it has a time dimension (int), it does not like not being a N0 sequence,
i.e. ints starting at 0)

This takes 2 snaps 5 seconds appart. Using the demo camera it works.
Using DSLRremote, the store ends up having 2 time 0 images.

So there is something fishy with DSLRRemote.

-- 
Carlos G Mendioroz  <tr...@ac...>