[MINC-development] [RFC] [WIP] minc-diff-labels, diff and patch tools for minc label files

[Andrew Janke]

Yup, definitely a different purpose but as a user (who would use this
tool on our mouse labels) I want more!  Finding small diffs in label
files is hard as you have to be in the right slice/plane. I tend to
run something to find differences (like voldiff or minccmp. mincdiff
is too coarse) in
parallel to my own less pretty attempts at what you are doing.

a

On 24 January 2018 at 02:38, Gabriel A. Devenyi <gdevenyi at gmail.com> wrote:
> Thanks for the info Andrew.
>
> After a quick poke through it looks like this is to compute summary
> statistics rather than generate a map of differences between label volumes.
> I don't see an option to save an output file other than saving the screen
> output to a file.
>
> Very useful tool for doing those stats, but not for this application of
> diffing/patching label sets.
>
> P.S. code updated to address comments from Vlad. Now also doesn't store a
> volume per label in the patch if there's no changes.
>
> --
> Gabriel A. Devenyi B.Eng. Ph.D.
> Research Computing Associate
> Computational Brain Anatomy Laboratory
> Cerebral Imaging Center
> Douglas Mental Health University Institute
> Affiliate, Department of Psychiatry
> McGill University
> t: 514.761.6131x4781
> e: gdevenyi at gmail.com
>
> On Tue, Jan 23, 2018 at 8:57 AM, Andrew Janke <a.janke at gmail.com> wrote:
>>
>> Looks reasonable.
>>
>> It's sort of for the same purpose (but different), but have you seen this
>> thing?
>>
>>    https://github.com/BIC-MNI/classify/blob/master/voldiff.c
>>
>> At times it looks like there is a war going on in the code but it can
>> apparently compare labels and produce comparison stats. I recall using
>> it once or twice.
>>
>> a
>>
>>
>> On 23 January 2018 at 12:27, Gabriel A. Devenyi
>> <gabriel.devenyi at mcgill.ca> wrote:
>> > Hi minc-users,
>> >
>> > Inspired by a discussion I had with Dr. Mallar Chakravary and Dr. Jason
>> > Lerch about tracking changes of label files, I recently attempted to
>> > produce
>> > a data format and tools to compute differences between label files, and
>> > store and apply differences, akin to the diff and patch tools for source
>> > code.
>> >
>> > I've produced a proof of concept implementation of the diff and patch
>> > tools
>> > at https://github.com/gdevenyi/minc-diff-labels
>> >
>> > Its probably fragile in a number of places, particularly, renumbering of
>> > labels. Right now it assumes the label files are dimensionally is the
>> > same.
>> >
>> > My initial applications are
>> > - tracking changes to manual label sets (maybe via special git diff
>> > hooks? a
>> > la git-latexdiff, https://gitlab.com/git-latexdiff/git-latexdiff)
>> > - Comparing segmentations from different tools/parameters for a
>> > segmentation
>> > pipeline
>> >
>> > I'd like to hear about your possible applications of something like
>> > this.
>> > Comments and questions also welcome.
>> >
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>
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