Support Zeiss CZI format

[Wei Chen]

Hi Benjamin,

On 10/09/2022 10:54 AM, Benjamin Gilbert wrote:
> Thanks for getting in touch.  Did you use the official Zeiss CZI
> format documentation to create the driver?  If so, AND if Zeiss still
> requires agreeing to a license or click-through agreement before
> receiving the documentation, AND if that license is similar to the
> license text they've used in the past, then we will not be able to
> merge your code.  The CZI documentation license has historically
> included some language which appears to forbid using it to create open
> source code and documentation.  Feel free to email me to discuss this
> in more detail.
>

I got the CZI format document 1.1(2012) from our Zeiss support
specialist. He didn't mention any license or agreement limitation. I
tried several times to get an updated version from Zeiss website but
haven't heard from them yet. Also Zeiss website interface may have
changed, I went through several steps to create service ticket. And
didn't see any click-through agreement option.

In this 1.1 version document, I cannot find any word mention what I
cannot do. It only describes the format.

>> The JPEG XR decoder is from jxrlib, which is included in CentOS, Debian
>> and Ubuntu.
>
> Unfortunately, jxrlib doesn't seem to have an active upstream
> maintainer.  Some Linux distributions do package it, but without a
> reliable upstream we'd probably need to make JPEG XR support optional.
>

Sure, I can do it in configure.

Now this driver can read uncompressed, BGR24, BGR48, and fluorescence 
image in Gray8 and Gray16, at most three fluorescence channels though.


Best,
Wei