Question: How can i see in if a binary image is almost all black or all white in numpy or scikit-image modules ?

I thought about `numpy.all` function or `numpy.any` but i do not know how neither for a total black image nor for a almost black image.

Answer: 
Supposing you followed the instructions from <http://libcinder.org/docs/welcome/GitSetup.html> ... According to the site 

> 
> "Cinder is free, open-source and available for Mac OS X, iOS and Windows."
> 
> 
> 

So no ubuntu is supported out of the box.

When I look at the source it has some very deep dependencies to Windows and Mac internals, such as:

```
#if defined( CINDER_MAC )
    #include "cinder/cocoa/CinderCocoa.h"
    #import <Cocoa/Cocoa.h>
    #import <AppKit/NSPasteboard.h>
    #import <AppKit/NSImage.h>
#elif defined( CINDER_COCOA_TOUCH )
    #include "cinder/cocoa/CinderCocoa.h"
    #include "cinder/cocoa/CinderCocoaTouch.h"
    #import <UIKit/UIPasteboard.h>
#elif defined( CINDER_MSW )
    #include <windows.h>
    #include "cinder/msw/CinderMsw.h"
    #include "cinder/msw/CinderMswGdiPlus.h"
    #include "cinder/Utilities.h"
    #include "cinder/ip/Fill.h"
    #include "cinder/ip/Blend.h"
    #include <set>
#endif

```

so no Linux branch. However you could get "in touch" with cinder developers, ask them if they plan to provide Linux support ... Maybe volunteer yourself for it?
As **fritzone** said, there is no current version running on Linux, however there is some development (hopefully) happening.

<https://forum.libcinder.org/topic/basicapp-in-linux>

And probably for Android as well.