LEICA BigTIFF

[Adam Goode]

On Thu, Jun 21, 2012 at 4:43 PM, Benjamin Gilbert <bgilbert at cs.cmu.edu> wrote:
> On 06/21/2012 12:34 PM, Agelos Pappas wrote:
>>
>> I have added a new vendor handler in my local copy of the project and
>> changed two files (openslide-private.h & openslide.c) to introduce the
>> new function in tiff_formats[] and in the header. Basically the new file
>> is just a copy of the generic tiff vendor file with only slight changes.
>
>
> I had a quick glance at the example slide files available on the Leica
> website.  The XML in the IFD 0 ImageDescription field contains a bunch of
> useful information for Leica-specific OpenSlide properties. Significantly,
> it also contains the mapping from logical images (main slide and macro) to
> TIFF IFDs.  So OpenSlide will need to parse this data.
>
> If you'd like, I can handle adding the XML parser dependency to
> Autoconf/Automake for you, since I assume you don't have a good way to test
> the Autotools build.
>
> libxml2 appears to be the obvious choice of XML library.  Adam?
>

Either that or expat, I guess.


>
>
>> Can you guide me on how to commit these changes to the project? Should I
>> just attach the modified files in the list or should I use github?
>
>
> I suggest creating a pull request on GitHub.  This is a bit complicated if
> you haven't done it before.
>
> 1.  Create a GitHub account if you don't already have one.
>
> 2.  Go to <https://github.com/openslide/openslide> and click the "Fork"
> button at the top of the page.  That will create a clone of the OpenSlide
> repository inside your own GitHub account.
>
> 3.  Use Git to push your changes to a branch in your repository.
>
> 4.  On the GitHub page for your repository, click the "Pull Request" button
> at the top of the page, fill out the form and submit.
>
> --Benjamin Gilbert