Loading ppm Image and MathLab compatibility

[Emmanuel Lanzmann]

Hi,

First of all, congratulation for Octave which is really a nice 
software !

I am faced to two problem (which are very classical):
1) I have a file that was written with math Lab, so a "***.mat"
   file. 
   I tried to open it using load -mat-binary, but it fails telling 
   me :

   error: load: can't read binary file
   error: load: trouble reading binary file `xyzsimple.mat'
   error: evaluating index expression near line 21, column 1

   Is there a way to read this file ?
   

2) I need to import some image saved in ppm. I tried the command:
   [M,ppm]=loadimage("....") but it fails.
  
   How should I proceed to download ppm images ?

  Thanks a lot in advance.

Emmanuel




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