[Feature request] Getting access to a specific pyramid level on imageJ

[Rdornier]

Hi @ppouchin,

I recently had a request from a user, who works on Fiji and has images on OMERO, to get specific pyramids of a pyramidal file.
For their pipeline, they don't need the full resolution image (a downsample version can be used).

When I call the method imageWrapper.toImagePlus(client), it automatically loads the full resolution plan and Fiji crashed due to memory issue (expected because of the large image).

I think having a method like imageWrapper.toImagePlus(client, level), with level the resolution level we would like to load, could really be useful.
I already made a groovy script that do the job, but I would appreciate having this feature including in the simple-omero-client project.

I've tried to implement it, but I'm stucked to, apparently, bad pixel reading. Therefore, I didn't open a PR yet (if you would like to have a look, I can open one as a draft).

Thanks and all the best,
Rémy.

[ppouchin]

Ok, I've had this in mind for quite some time too. I'm checking how to integrate this in the library. Your script looks interesting.

[ppouchin]

Should be solved by #99
However, in the tests, I had to allow a difference of 1, because opening sub-resolution images from fake files changes the value in the first square with Bio-Formats, but not with OMERO, somehow.

[Rdornier]

Super, thanks 👍 !