Mathematica Stack Exchange is a question and answer site for users of Mathematica. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I'm trying to import an image in Mathematica on my Raspberry Pi.

The code is simple but I get an error when importing:

$ wolfram
Wolfram Language (Raspberry Pi Pilot Release)
Copyright 1988-2014 Wolfram Research
Information & help: wolfram.com/raspi

In[1]:= SetDirectory["~/"];

In[2]:= i=Import["small.jpg"];
InstallJava::fail: A link to the Java runtime could not be established.

This is the image I'm trying to import: http://i.stack.imgur.com/zzSLr.jpg It's 1.5 MB large so the Pi should have no problem importing it. Why do I get this error and how can I prevent it?


UPDATE: I believe this is caused when the computer is running out of memory. I don't know a sure way to reproduce it but it keeps happening if I do other memory-intensive tasks on my Raspberry Pi. I'd like to know if there's a way to prevent this.

and I got this error:

/opt/Wolfram/WolframEngine/10.0/SystemFiles/Kernel/Binaries/Linux-ARM/WolframKernel: error while loading shared libraries: /opt/Wolfram/WolframEngine/10.0/SystemFiles/Libraries/Linux-ARM/libWolframEngine.so: cannot make segment writable for relocation: Cannot allocate memory

share|improve this question
    
I don't have a Raspberry Pi so I can't reproduce this, but I presume you do actually have the JRE or JDK installed and usable...? – Oleksandr R. Apr 26 '14 at 12:46
    
I cannot reproduce this problem with either the November 19, 2013 version or the January 29, 2014 version. – bobthechemist Apr 26 '14 at 13:10
    
It seems imgur compressed the image, here is one uncompressed similar image: dropbox.com/s/v3hp98lgf31hm0r/small.jpg The problem is that sometimes I can import images just fine, but other times I get this error until I restart the Pi. – shrx Apr 26 '14 at 14:20
    
@shrx are you able to reproduce this problem with the most recent version of MMA on the RPi? – bobthechemist Nov 11 '14 at 3:22
    
@bobthechemist will test when I have the time, but my Pi occasionally still has problems with Mathematica, causing unresponsiveness and reboots. – shrx Nov 11 '14 at 8:12

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Browse other questions tagged or ask your own question.