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Python package for alpha matting. This repository has moved:

Home Page: https://github.com/pymatting/pymatting

License: Other

Python 73.46% C 26.54%

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matting's Issues

Estimate foreground and background put into GPU

Hi, Thanks for your work! It's very nice!

I used your approach to estimate foreground and background.
But I find the time it costs is big. So I want to put it to GPU by Cupy or pytorch.
And then I want to know estimate_fb_ml()function is base on which paper and "linear equation system" is what, and do you have some idea ?

Thank you very much !

SyntaxError: invalid syntax: return L @ x + d * x

Hello!

I'm running the code on a macOS, and always getting this error in alpha_matting.py (line 200): return L @ x + d * x

SyntaxError: invalid syntax

Do you have an idea on how I can fix this issue?

Thanks.

'Failed to compile libmatting.' But also can't use vcycle?

When running 'python setup.py install', I get the following output:

running install
building libmatting library
ichol.c: In function 'ichol':
ichol.c:48:5: warning: C++ style comments are not allowed in ISO C90
ichol.c:48:5: warning: (this will be reported only once per input file)
ichol.c:62:5: error: 'for' loop initial declarations are only allowed in C99 mode
ichol.c:62:5: note: use option -std=c99 or -std=gnu99 to compile your code
ichol.c:73:5: error: 'for' loop initial declarations are only allowed in C99 mode
ichol.c:76:9: error: 'for' loop initial declarations are only allowed in C99 mode
ichol.c:90:9: warning: ISO C90 forbids mixed declarations and code
ichol.c:98:13: error: 'for' loop initial declarations are only allowed in C99 mode
ichol.c:105:21: warning: ISO C90 forbids mixed declarations and code
ichol.c:123:17: warning: ISO C90 forbids mixed declarations and code
ichol.c:141:18: error: redefinition of 'idx'
ichol.c:76:18: note: previous definition of 'idx' was here
ichol.c:141:9: error: 'for' loop initial declarations are only allowed in C99 mode
ichol.c:152:13: warning: ISO C90 forbids mixed declarations and code
ichol.c:173:18: error: redefinition of 'idx'
ichol.c:141:18: note: previous definition of 'idx' was here
ichol.c:173:9: error: 'for' loop initial declarations are only allowed in C99 mode
ichol.c: In function 'backsub_L_csc_inplace':
ichol.c:229:5: error: 'for' loop initial declarations are only allowed in C99 mode
ichol.c:236:18: error: redefinition of 'k'
ichol.c:230:13: note: previous definition of 'k' was here
ichol.c:236:9: error: 'for' loop initial declarations are only allowed in C99 mode
ichol.c: In function 'backsub_LT_csc_inplace':
ichol.c:252:5: error: 'for' loop initial declarations are only allowed in C99 mode
ichol.c:255:9: error: 'for' loop initial declarations are only allowed in C99 mode
ichol.c:261:13: error: redefinition of 'k'
ichol.c:255:18: note: previous definition of 'k' was here
ichol.c:261:9: warning: ISO C90 forbids mixed declarations and code
ichol.c: In function 'backsub_L_csr_inplace':
ichol.c:275:5: error: 'for' loop initial declarations are only allowed in C99 mode
ichol.c:279:9: error: 'for' loop initial declarations are only allowed in C99 mode
ichol.c:285:13: error: redefinition of 'k'
ichol.c:279:18: note: previous definition of 'k' was here
ichol.c:285:9: warning: ISO C90 forbids mixed declarations and code
In file included from knn.c:2:0:
kdtree.h:12:1: warning: C++ style comments are not allowed in ISO C90
kdtree.h:12:1: warning: (this will be reported only once per input file)
knn.c:6:1: warning: C++ style comments are not allowed in ISO C90
knn.c:6:1: warning: (this will be reported only once per input file)
knn.c: In function 'knn':
knn.c:22:5: warning: ISO C90 forbids mixed declarations and code
knn.c:24:5: error: 'for' loop initial declarations are only allowed in C99 mode
knn.c:24:5: note: use option -std=c99 or -std=gnu99 to compile your code
knn.c:28:5: warning: ISO C90 forbids mixed declarations and code
knn.c:37:14: error: redefinition of 'i'
knn.c:24:14: note: previous definition of 'i' was here
knn.c:37:5: error: 'for' loop initial declarations are only allowed in C99 mode
knn.c:43:9: error: 'for' loop initial declarations are only allowed in C99 mode
In file included from kdtree.c:1:0:
kdtree.h:12:1: warning: C++ style comments are not allowed in ISO C90
kdtree.h:12:1: warning: (this will be reported only once per input file)
kdtree.c: In function 'kdtree_point_distance':
kdtree.c:19:5: error: 'for' loop initial declarations are only allowed in C99 mode
kdtree.c:19:5: note: use option -std=c99 or -std=gnu99 to compile your code
kdtree.c: In function 'kdtree_partition':
kdtree.c:40:9: warning: C++ style comments are not allowed in ISO C90
kdtree.c:40:9: warning: (this will be reported only once per input file)
kdtree.c:45:13: error: 'for' loop initial declarations are only allowed in C99 mode
kdtree.c:51:13: warning: ISO C90 forbids mixed declarations and code
kdtree.c: In function 'kdtree_init':
kdtree.c:70:5: warning: ISO C90 forbids mixed declarations and code
kdtree.c:78:5: error: 'for' loop initial declarations are only allowed in C99 mode
kdtree.c:85:5: error: 'for' loop initial declarations are only allowed in C99 mode
kdtree.c:88:9: error: 'for' loop initial declarations are only allowed in C99 mode
kdtree.c:108:9: error: 'for' loop initial declarations are only allowed in C99 mode
kdtree.c:117:9: warning: ISO C90 forbids mixed declarations and code
kdtree.c:127:9: warning: ISO C90 forbids mixed declarations and code
kdtree.c: In function 'kdtree_cell_distance':
kdtree.c:163:5: error: 'for' loop initial declarations are only allowed in C99 mode
kdtree.c: In function 'kdtree_find_knn':
kdtree.c:178:5: warning: ISO C90 forbids mixed declarations and code
kdtree.c:193:9: error: 'for' loop initial declarations are only allowed in C99 mode
kdtree.c:203:13: error: 'for' loop initial declarations are only allowed in C99 mode
boxfilter.c:5:1: warning: C++ style comments are not allowed in ISO C90
boxfilter.c:5:1: warning: (this will be reported only once per input file)
boxfilter.c: In function 'boxfilter':
boxfilter.c:40:5: warning: ISO C90 forbids mixed declarations and code
boxfilter.c:44:5: error: 'for' loop initial declarations are only allowed in C99 mode
boxfilter.c:44:5: note: use option -std=c99 or -std=gnu99 to compile your code
boxfilter.c:46:9: error: 'for' loop initial declarations are only allowed in C99 mode
boxfilter.c:53:5: warning: ISO C90 forbids mixed declarations and code
boxfilter.c:57:14: error: redefinition of 'i'
boxfilter.c:43:9: note: previous definition of 'i' was here
boxfilter.c:57:5: error: 'for' loop initial declarations are only allowed in C99 mode
boxfilter.c:61:9: error: 'for' loop initial declarations are only allowed in C99 mode
boxfilter.c:76:21: error: 'for' loop initial declarations are only allowed in C99 mode
boxfilter.c:89:18: error: redefinition of 'j'
boxfilter.c:61:18: note: previous definition of 'j' was here
boxfilter.c:89:9: error: 'for' loop initial declarations are only allowed in C99 mode
boxfilter.c:113:18: error: redefinition of 'j'
boxfilter.c:89:18: note: previous definition of 'j' was here
boxfilter.c:113:9: error: 'for' loop initial declarations are only allowed in C99 mode
labelexpand.c: In function 'label_expand':
labelexpand.c:17:5: error: 'for' loop initial declarations are only allowed in C99 mode
labelexpand.c:17:5: note: use option -std=c99 or -std=gnu99 to compile your code
labelexpand.c:25:9: error: 'for' loop initial declarations are only allowed in C99 mode
labelexpand.c:26:13: error: 'for' loop initial declarations are only allowed in C99 mode
ERROR: Failed to compile libmatting. Only vcycle method will be available.
running build
running build_py
creating build
creating build\lib
creating build\lib\matting
copying matting\alpha_matting.py -> build\lib\matting
copying matting\boxfilter.py -> build\lib\matting
copying matting\closed_form_laplacian.py -> build\lib\matting
copying matting\foreground_background.py -> build\lib\matting
copying matting\guided_filter.py -> build\lib\matting
copying matting\ichol.py -> build\lib\matting
copying matting\ifm_matting.py -> build\lib\matting
copying matting\knn.py -> build\lib\matting
copying matting\knn_laplacian.py -> build\lib\matting
copying matting\lkm.py -> build\lib\matting
copying matting\load_libmatting.py -> build\lib\matting
copying matting\util.py -> build\lib\matting
copying matting\vcycle.py -> build\lib\matting
copying matting\__about__.py -> build\lib\matting
copying matting\__init__.py -> build\lib\matting
copying matting\__main__.py -> build\lib\matting
running install_lib
running install_egg_info
running egg_info
creating matting.egg-info
writing matting.egg-info\PKG-INFO
writing dependency_links to matting.egg-info\dependency_links.txt
writing requirements to matting.egg-info\requires.txt
writing top-level names to matting.egg-info\top_level.txt
writing manifest file 'matting.egg-info\SOURCES.txt'
reading manifest file 'matting.egg-info\SOURCES.txt'
writing manifest file 'matting.egg-info\SOURCES.txt'
removing 'C:\Users\usr\AppData\Local\Continuum\anaconda3\Lib\site-packages\matting-0.0.1-py3.7.egg-info' (and everything under it)
Copying matting.egg-info to C:\Users\usr\AppData\Local\Continuum\anaconda3\Lib\site-packages\matting-0.0.1-py3.7.egg-info
running install_scripts
cleanup

I saw elsewhere you mentioned that vcycle should still work without the libmatting library, but when I run 'from matting import vcycle' I get the following error:

from matting import vcycle
Traceback (most recent call last):

  File "<ipython-input-2-c1031d670d07>", line 1, in <module>
    from matting import vcycle

  File "C:\Users\usr\Desktop\matting\matting\__init__.py", line 2, in <module>
    from .alpha_matting import alpha_matting, METHODS, PRECONDITIONERS

  File "C:\Users\usr\Desktop\matting\matting\alpha_matting.py", line 3, in <module>
    from .knn_laplacian import knn_laplacian

  File "C:\Users\usr\Desktop\matting\matting\knn_laplacian.py", line 383, in <module>
    from .knn import knn

  File "C:\Users\usr\Desktop\matting\matting\knn.py", line 5, in <module>
    library = load_libmatting()

  File "C:\Users\usr\Desktop\matting\matting\load_libmatting.py", line 24, in load_libmatting
    raise Exception("Failed to find libmatting library. Checked paths:\n%s", "\n".join(paths))

Any advice?

Thanks!

how to run on windows platform?

how to run on windows platform?
Thank you！

Libmatting is not a valid Win32 library

Hey! This looks like a great library and was trying to get the examples running, I followed your Windows install instructions and ran into the Failed to find libmatting library..

After digging into the code I output the OSError that you catch right before this error is printed and it tells me:

[WinError 193] %1 is not a valid Win32 application

I thought maybe I had to run through VCC/vcvars64.bat as you suggested but that unfortunately gave me the same results. Have you encountered this issue by any chance?

Thanks!

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