[GRASS-user] i.superpixels.slic not working

James_Duffy · June 12, 2017, 9:25am

Hello,

I’m trying to run the following:

i.superpixels.slic -n group=mod1@PERMANENT output=test num_pixels=5000 memory=10000

The output gives me the following:

(Mon Jun 12 10:17:40 2017)
i.superpixels.slic -n group=mod1@PERMANENT output=test num_pixels=5000 memory=10000
Cache data in memory mode
Loading input…
WARNING: Initialized 5036 of 5070 seeds
Performing k mean segmentation…

And then I get a ‘GRASS 7 has stopped working’ box pop up.

I tried again with the default settings for the module:

i.superpixels.slic group=mod1@PERMANENT output=test

And got the same error.

I am using windows 10 professional and GRASS 7.3.svn (2017).

Has anyone else got this module working, or had the same problem on Windows?

Any help much appreciated.

Thanks

James

mlennert · June 12, 2017, 9:36am

On 12/06/17 11:25, James Duffy wrote:

Hello,

I'm trying to run the following:

*i.superpixels.slic -n group=mod1@PERMANENT output=test num_pixels=5000
memory=10000

*
The output gives me the following:

(Mon Jun 12 10:17:40
2017)
i.superpixels.slic -n group=mod1@PERMANENT output=test num_pixels=5000
memory=10000
Cache data in memory mode
Loading input...
WARNING: Initialized 5036 of 5070 seeds
Performing k mean segmentation...

And then I get a 'GRASS 7 has stopped working' box pop up.

I tried again with the default settings for the module:

*i.superpixels.slic group=mod1@PERMANENT output=test

*
And got the same error.

I am using windows 10 professional and GRASS 7.3.svn (2017).

Has anyone else got this module working, or had the same problem on Windows?

I haven't had any problems running it on Linux, and some colleagues have run it on Windows.

Just for our info: What are your region settings ?

Moritz

James_Duffy · June 12, 2017, 9:38am

On 12 June 2017 at 10:36, Moritz Lennert <mlennert@club.worldonline.be>
wrote:

On 12/06/17 11:25, James Duffy wrote:

Hello,

I'm trying to run the following:

*i.superpixels.slic -n group=mod1@PERMANENT output=test num_pixels=5000
memory=10000

*
The output gives me the following:

(Mon Jun 12 10:17:40
2017)
i.superpixels.slic -n group=mod1@PERMANENT output=test num_pixels=5000
memory=10000
Cache data in memory mode
Loading input...
WARNING: Initialized 5036 of 5070 seeds
Performing k mean segmentation...

And then I get a 'GRASS 7 has stopped working' box pop up.

I tried again with the default settings for the module:

*i.superpixels.slic group=mod1@PERMANENT output=test

*
And got the same error.

I am using windows 10 professional and GRASS 7.3.svn (2017).

Has anyone else got this module working, or had the same problem on
Windows?

I haven't had any problems running it on Linux, and some colleagues have
run it on Windows.

Just for our info: What are your region settings ?

projection: 1 (UTM)
zone: 43
datum: wgs84
ellipsoid: wgs84
north: 25183.22184529
south: 25157.71783908
west: 301463.66480893
east: 301494.2431551
nsres: 0.07775612
ewres: 0.0778075
rows: 328
cols: 393
cells: 128904

Just to add, I am running i.segment.uspo without problems using the same
imagery group and the same region.

Moritz

--
*James Duffy*
PhD Researcher
Environment and Sustainability Institute
Penryn Campus
University of Exeter
Penryn
Cornwall
TR10 9FE

mlennert · June 12, 2017, 10:00am

On 12/06/17 11:38, James Duffy wrote:

On 12 June 2017 at 10:36, Moritz Lennert <mlennert@club.worldonline.be
<mailto:mlennert@club.worldonline.be>> wrote:

    On 12/06/17 11:25, James Duffy wrote:

        Hello,

        I'm trying to run the following:

        *i.superpixels.slic -n group=mod1@PERMANENT output=test
        num_pixels=5000
        memory=10000

        *
        The output gives me the following:

        (Mon Jun 12 10:17:40
        2017)
        i.superpixels.slic -n group=mod1@PERMANENT output=test
        num_pixels=5000
        memory=10000
        Cache data in memory mode
        Loading input...
        WARNING: Initialized 5036 of 5070 seeds
        Performing k mean segmentation...

        And then I get a 'GRASS 7 has stopped working' box pop up.

        I tried again with the default settings for the module:

        *i.superpixels.slic group=mod1@PERMANENT output=test

        *
        And got the same error.

        I am using windows 10 professional and GRASS 7.3.svn (2017).

        Has anyone else got this module working, or had the same problem
        on Windows?

    I haven't had any problems running it on Linux, and some colleagues
    have run it on Windows.

    Just for our info: What are your region settings ?

projection: 1 (UTM)
zone: 43
datum: wgs84
ellipsoid: wgs84
north: 25183.22184529
south: 25157.71783908
west: 301463.66480893
east: 301494.2431551
nsres: 0.07775612
ewres: 0.0778075
rows: 328
cols: 393
cells: 128904

Just to add, I am running i.segment.uspo without problems using the same
imagery group and the same region.

Yes, the region is actually very small, so no problem from there. It might be an issue with the memory handling. Could you try without setting the memory parameter, i.e. using its default value of 300 and tell us what happens ?

Moritz

James_Duffy · June 12, 2017, 10:11am

On 12 June 2017 at 11:00, Moritz Lennert <mlennert@club.worldonline.be>
wrote:

On 12/06/17 11:38, James Duffy wrote:

On 12 June 2017 at 10:36, Moritz Lennert <mlennert@club.worldonline.be
<mailto:mlennert@club.worldonline.be>> wrote:

    On 12/06/17 11:25, James Duffy wrote:

        Hello,

        I'm trying to run the following:

        *i.superpixels.slic -n group=mod1@PERMANENT output=test
        num_pixels=5000
        memory=10000

        *
        The output gives me the following:

        (Mon Jun 12 10:17:40
        2017)
        i.superpixels.slic -n group=mod1@PERMANENT output=test
        num_pixels=5000
        memory=10000
        Cache data in memory mode
        Loading input...
        WARNING: Initialized 5036 of 5070 seeds
        Performing k mean segmentation...

        And then I get a 'GRASS 7 has stopped working' box pop up.

        I tried again with the default settings for the module:

        *i.superpixels.slic group=mod1@PERMANENT output=test

        *
        And got the same error.

        I am using windows 10 professional and GRASS 7.3.svn (2017).

        Has anyone else got this module working, or had the same problem
        on Windows?

    I haven't had any problems running it on Linux, and some colleagues
    have run it on Windows.

    Just for our info: What are your region settings ?

projection: 1 (UTM)
zone: 43
datum: wgs84
ellipsoid: wgs84
north: 25183.22184529
south: 25157.71783908
west: 301463.66480893
east: 301494.2431551
nsres: 0.07775612
ewres: 0.0778075
rows: 328
cols: 393
cells: 128904

Just to add, I am running i.segment.uspo without problems using the same
imagery group and the same region.

Yes, the region is actually very small, so no problem from there. It might
be an issue with the memory handling. Could you try without setting the
memory parameter, i.e. using its default value of 300 and tell us what
happens ?

*#default memory*

*i.superpixels.slic -n group=mod1@PERMANENT output=test *
Produced the same problem.

Moritz

--

mlennert · June 12, 2017, 11:09am

On 12/06/17 12:11, James Duffy wrote:

On 12 June 2017 at 11:00, Moritz Lennert <mlennert@club.worldonline.be
<mailto:mlennert@club.worldonline.be>> wrote:

    On 12/06/17 11:38, James Duffy wrote:

        On 12 June 2017 at 10:36, Moritz Lennert
        <mlennert@club.worldonline.be <mailto:mlennert@club.worldonline.be>
        <mailto:mlennert@club.worldonline.be
        <mailto:mlennert@club.worldonline.be>>> wrote:

            On 12/06/17 11:25, James Duffy wrote:

                Hello,

                I'm trying to run the following:

                *i.superpixels.slic -n group=mod1@PERMANENT output=test
                num_pixels=5000
                memory=10000

                *
                The output gives me the following:

                (Mon Jun 12 10:17:40
                2017)
                i.superpixels.slic -n group=mod1@PERMANENT output=test
                num_pixels=5000
                memory=10000
                Cache data in memory mode
                Loading input...
                WARNING: Initialized 5036 of 5070 seeds
                Performing k mean segmentation...

                And then I get a 'GRASS 7 has stopped working' box pop up.

                I tried again with the default settings for the module:

                *i.superpixels.slic group=mod1@PERMANENT output=test

                *
                And got the same error.

                I am using windows 10 professional and GRASS 7.3.svn (2017).

                Has anyone else got this module working, or had the same
        problem
                on Windows?

            I haven't had any problems running it on Linux, and some
        colleagues
            have run it on Windows.

            Just for our info: What are your region settings ?

        projection: 1 (UTM)
        zone: 43
        datum: wgs84
        ellipsoid: wgs84
        north: 25183.22184529
        south: 25157.71783908
        west: 301463.66480893
        east: 301494.2431551
        nsres: 0.07775612
        ewres: 0.0778075
        rows: 328
        cols: 393
        cells: 128904

        Just to add, I am running i.segment.uspo without problems using
        the same
        imagery group and the same region.

    Yes, the region is actually very small, so no problem from there. It
    might be an issue with the memory handling. Could you try without
    setting the memory parameter, i.e. using its default value of 300
    and tell us what happens ?

*#default memory*
*i.superpixels.slic -n group=mod1@PERMANENT output=test

*
Produced the same problem.

Can you reproduce using the NC demo data set ?

I.e.

g.region rast=ortho_2001_t792_1m
i.group ortho input=ortho_2001_t792_1m
i.superpixels.slic group=ortho out=slic_test

And tying with and without the '-n' flag and the memory parameter.

Moritz

mlennert · June 12, 2017, 11:39am

On 12/06/17 13:09, Moritz Lennert wrote:

On 12/06/17 12:11, James Duffy wrote:

On 12 June 2017 at 11:00, Moritz Lennert <mlennert@club.worldonline.be
<mailto:mlennert@club.worldonline.be>> wrote:

    On 12/06/17 11:38, James Duffy wrote:

        On 12 June 2017 at 10:36, Moritz Lennert
        <mlennert@club.worldonline.be <mailto:mlennert@club.worldonline.be>
        <mailto:mlennert@club.worldonline.be
        <mailto:mlennert@club.worldonline.be>>> wrote:

            On 12/06/17 11:25, James Duffy wrote:

                Hello,

                I'm trying to run the following:

                *i.superpixels.slic -n group=mod1@PERMANENT output=test
                num_pixels=5000
                memory=10000

                *
                The output gives me the following:

                (Mon Jun 12 10:17:40
                2017)
                i.superpixels.slic -n group=mod1@PERMANENT output=test
                num_pixels=5000
                memory=10000
                Cache data in memory mode
                Loading input...
                WARNING: Initialized 5036 of 5070 seeds
                Performing k mean segmentation...

                And then I get a 'GRASS 7 has stopped working' box pop up.

                I tried again with the default settings for the module:

                *i.superpixels.slic group=mod1@PERMANENT output=test

                *
                And got the same error.

                I am using windows 10 professional and GRASS 7.3.svn (2017).

                Has anyone else got this module working, or had the same
        problem
                on Windows?

            I haven't had any problems running it on Linux, and some
        colleagues
            have run it on Windows.

            Just for our info: What are your region settings ?

        projection: 1 (UTM)
        zone: 43
        datum: wgs84
        ellipsoid: wgs84
        north: 25183.22184529
        south: 25157.71783908
        west: 301463.66480893
        east: 301494.2431551
        nsres: 0.07775612
        ewres: 0.0778075
        rows: 328
        cols: 393
        cells: 128904

        Just to add, I am running i.segment.uspo without problems using
        the same
        imagery group and the same region.

    Yes, the region is actually very small, so no problem from there. It
    might be an issue with the memory handling. Could you try without
    setting the memory parameter, i.e. using its default value of 300
    and tell us what happens ?

*#default memory*
*i.superpixels.slic -n group=mod1@PERMANENT output=test

*
Produced the same problem.

Can you reproduce using the NC demo data set ?

I.e.

g.region rast=ortho_2001_t792_1m
i.group ortho input=ortho_2001_t792_1m
i.superpixels.slic group=ortho out=slic_test

And tying with and without the '-n' flag and the memory parameter.

Ok, I think I found the culprit: https://trac.osgeo.org/grass/changeset/70961/.

@Markus: something in that modification creates a segfault in memory mode when running the above commands. When I try with the version just before, it works.

Moritz

James_Duffy · June 12, 2017, 1:25pm

On 12 June 2017 at 12:09, Moritz Lennert <mlennert@club.worldonline.be>
wrote:

On 12/06/17 12:11, James Duffy wrote:

On 12 June 2017 at 11:00, Moritz Lennert <mlennert@club.worldonline.be
<mailto:mlennert@club.worldonline.be>> wrote:

    On 12/06/17 11:38, James Duffy wrote:

        On 12 June 2017 at 10:36, Moritz Lennert
        <mlennert@club.worldonline.be <mailto:mlennert@club.worldonl
ine.be>
        <mailto:mlennert@club.worldonline.be

        <mailto:mlennert@club.worldonline.be>>> wrote:

            On 12/06/17 11:25, James Duffy wrote:

                Hello,

                I'm trying to run the following:

                *i.superpixels.slic -n group=mod1@PERMANENT output=test
                num_pixels=5000
                memory=10000

                *
                The output gives me the following:

                (Mon Jun 12 10:17:40
                2017)
                i.superpixels.slic -n group=mod1@PERMANENT output=test
                num_pixels=5000
                memory=10000
                Cache data in memory mode
                Loading input...
                WARNING: Initialized 5036 of 5070 seeds
                Performing k mean segmentation...

                And then I get a 'GRASS 7 has stopped working' box pop up.

                I tried again with the default settings for the module:

                *i.superpixels.slic group=mod1@PERMANENT output=test

                *
                And got the same error.

                I am using windows 10 professional and GRASS 7.3.svn
(2017).

                Has anyone else got this module working, or had the same
        problem
                on Windows?

            I haven't had any problems running it on Linux, and some
        colleagues
            have run it on Windows.

            Just for our info: What are your region settings ?

        projection: 1 (UTM)
        zone: 43
        datum: wgs84
        ellipsoid: wgs84
        north: 25183.22184529
        south: 25157.71783908
        west: 301463.66480893
        east: 301494.2431551
        nsres: 0.07775612
        ewres: 0.0778075
        rows: 328
        cols: 393
        cells: 128904

        Just to add, I am running i.segment.uspo without problems using
        the same
        imagery group and the same region.

    Yes, the region is actually very small, so no problem from there. It
    might be an issue with the memory handling. Could you try without
    setting the memory parameter, i.e. using its default value of 300
    and tell us what happens ?

*#default memory*
*i.superpixels.slic -n group=mod1@PERMANENT output=test

*
Produced the same problem.

Can you reproduce using the NC demo data set ?

I.e.

Running:

*g.region rast=ortho_2001_t792_1m i.group ortho input=ortho_2001_t792_1m
i.superpixels.slic group=ortho out=slic_test*

Worked for me.

*i.superpixels.slic -n group=ortho out=slic_test*
Also works.

*i.superpixels.slic group=ortho out=slic_test memory=10000 *
Crashed.

*i.superpixels.slic -n group=ortho out=slic_test memory=10000 *
Crashed.

And tying with and without the '-n' flag and the memory parameter.

Moritz

James

mlennert · June 12, 2017, 2:57pm

Le 12 juin 2017 15:25:36 GMT+02:00, James Duffy <james.philip.duffy@gmail.com> a écrit :

On 12 June 2017 at 12:09, Moritz Lennert <mlennert@club.worldonline.be>
wrote:

On 12/06/17 12:11, James Duffy wrote:

On 12 June 2017 at 11:00, Moritz Lennert

<mlennert@club.worldonline.be

<mailto:mlennert@club.worldonline.be>> wrote:

    On 12/06/17 11:38, James Duffy wrote:

        On 12 June 2017 at 10:36, Moritz Lennert
        <mlennert@club.worldonline.be <mailto:mlennert@club.worldonl
ine.be>
        <mailto:mlennert@club.worldonline.be

        <mailto:mlennert@club.worldonline.be>>> wrote:

            On 12/06/17 11:25, James Duffy wrote:

                Hello,

                I'm trying to run the following:

                *i.superpixels.slic -n group=mod1@PERMANENT

output=test

                num_pixels=5000
                memory=10000

                *
                The output gives me the following:

                (Mon Jun 12 10:17:40
                2017)
                i.superpixels.slic -n group=mod1@PERMANENT

output=test

                num_pixels=5000
                memory=10000
                Cache data in memory mode
                Loading input...
                WARNING: Initialized 5036 of 5070 seeds
                Performing k mean segmentation...

                And then I get a 'GRASS 7 has stopped working' box

pop up.

                I tried again with the default settings for the

module:

                *i.superpixels.slic group=mod1@PERMANENT output=test

                *
                And got the same error.

                I am using windows 10 professional and GRASS 7.3.svn
(2017).

                Has anyone else got this module working, or had the

same

        problem
                on Windows?

            I haven't had any problems running it on Linux, and some
        colleagues
            have run it on Windows.

            Just for our info: What are your region settings ?

        projection: 1 (UTM)
        zone: 43
        datum: wgs84
        ellipsoid: wgs84
        north: 25183.22184529
        south: 25157.71783908
        west: 301463.66480893
        east: 301494.2431551
        nsres: 0.07775612
        ewres: 0.0778075
        rows: 328
        cols: 393
        cells: 128904

        Just to add, I am running i.segment.uspo without problems

using

        the same
        imagery group and the same region.

    Yes, the region is actually very small, so no problem from

there. It

    might be an issue with the memory handling. Could you try

without

    setting the memory parameter, i.e. using its default value of

300

    and tell us what happens ?

*#default memory*
*i.superpixels.slic -n group=mod1@PERMANENT output=test

*
Produced the same problem.

Can you reproduce using the NC demo data set ?

I.e.

Running:

*g.region rast=ortho_2001_t792_1m i.group ortho

input=ortho_2001_t792_1m

i.superpixels.slic group=ortho out=slic_test*

Worked for me.

*i.superpixels.slic -n group=ortho out=slic_test*
Also works.

*i.superpixels.slic group=ortho out=slic_test memory=10000 *
Crashed.

The issue arises when the module uses memory mode, i.e. when it reads the entire map into memory.

The issue is way above my pointer foo, so you'll have to wait for a fix and use only disk mode (by setting memory low enough) or download the previous version of the add-on from https://trac.osgeo.org/grass/browser/grass-addons/grass7/imagery/i.superpixels.slic?rev=70478&format=zip and install from the zip using g.extension ... url=.

Moritz

*i.superpixels.slic -n group=ortho out=slic_test memory=10000 *
Crashed.

And tying with and without the '-n' flag and the memory parameter.

Moritz

James

Markus_Metz · June 12, 2017, 3:54pm

On Mon, Jun 12, 2017 at 4:57 PM, Moritz Lennert <mlennert@club.worldonline.be> wrote:

Le 12 juin 2017 15:25:36 GMT+02:00, James Duffy <james.philip.duffy@gmail.com> a écrit :

On 12 June 2017 at 12:09, Moritz Lennert <mlennert@club.worldonline.be>
wrote:

On 12/06/17 12:11, James Duffy wrote:

On 12 June 2017 at 11:00, Moritz Lennert
<mlennert@club.worldonline.be
mailto:[mlennert@club.worldonline.be](mailto:mlennert@club.worldonline.be)> wrote:

On 12/06/17 11:38, James Duffy wrote:

On 12 June 2017 at 10:36, Moritz Lennert
<mlennert@club.worldonline.be <mailto:mlennert@club.worldonl
ine.be>
<mailto:mlennert@club.worldonline.be

mailto:[mlennert@club.worldonline.be](mailto:mlennert@club.worldonline.be)>> wrote:

On 12/06/17 11:25, James Duffy wrote:

Hello,

I’m trying to run the following:

*i.superpixels.slic -n group=mod1@PERMANENT
output=test
num_pixels=5000
memory=10000

The output gives me the following:

(Mon Jun 12 10:17:40
2017)
i.superpixels.slic -n group=mod1@PERMANENT
output=test
num_pixels=5000
memory=10000
Cache data in memory mode
Loading input…
WARNING: Initialized 5036 of 5070 seeds
Performing k mean segmentation…

And then I get a ‘GRASS 7 has stopped working’ box
pop up.

I tried again with the default settings for the
module:

*i.superpixels.slic group=mod1@PERMANENT output=test

And got the same error.

I am using windows 10 professional and GRASS 7.3.svn
(2017).

Has anyone else got this module working, or had the
same
problem
on Windows?

I haven’t had any problems running it on Linux, and some
colleagues
have run it on Windows.

Just for our info: What are your region settings ?

projection: 1 (UTM)
zone: 43
datum: wgs84
ellipsoid: wgs84
north: 25183.22184529
south: 25157.71783908
west: 301463.66480893
east: 301494.2431551
nsres: 0.07775612
ewres: 0.0778075
rows: 328
cols: 393
cells: 128904

Just to add, I am running i.segment.uspo without problems
using
the same
imagery group and the same region.

Yes, the region is actually very small, so no problem from
there. It
might be an issue with the memory handling. Could you try
without
setting the memory parameter, i.e. using its default value of
300
and tell us what happens ?

#default memory
*i.superpixels.slic -n group=mod1@PERMANENT output=test

Produced the same problem.

Can you reproduce using the NC demo data set ?

I.e.

Running:

g.region rast=ortho_2001_t792_1m i.group ortho
input=ortho_2001_t792_1m
i.superpixels.slic group=ortho out=slic_test

Worked for me.

i.superpixels.slic -n group=ortho out=slic_test
Also works.

*i.superpixels.slic group=ortho out=slic_test memory=10000 *
Crashed.

The issue arises when the module uses memory mode, i.e. when it reads the entire map into memory.

The issue is way above my pointer foo, so you’ll have to wait for a fix

Fixed in r71177. The windows add-on should be available by tomorrow.

Markus M

and use only disk mode (by setting memory low enough) or download the previous version of the add-on from https://trac.osgeo.org/grass/browser/grass-addons/grass7/imagery/i.superpixels.slic?rev=70478&format=zip and install from the zip using g.extension … url=.

Moritz

*i.superpixels.slic -n group=ortho out=slic_test memory=10000 *
Crashed.

And tying with and without the ‘-n’ flag and the memory parameter.

Moritz

James

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