Re: Loading and average PGM files

[Laurent Hoeltgen]

On 06/18/2012 01:13 PM, Mathieu wrote:
> Hi everyone,
> 
> 
> I am working with the Microsoft Kinect device, an accessory of the Xbox
> console game, and I use it as a 3-dimensional camera to map rock surfaces.
> The internal parameters of the Kinect enable me to map and get the raw
> sensor digital numbers (DN) which are in (pixel, pixel, DN) coordinates and
> that I can convert later into real distances with calibrations. While I am
> recording with this tool, I get several files at PGM format (depth data). I
> let the Kinect recording for a while a each location where I set it up. I
> have thus numerous pictures (several hundreds) of each field of view from
> different locations of the surface I want to map. 
> 
> The problem is that a single frame is noisy and I therefore want to average
> all the good values at each pixel of the PGMs. I used to work on Matlab but
> I need to use Octave for my project. I cannot manage to load pgm files on
> Octave and to average them. 
> 
> Does anyone have already done that on Octave?
> 
> Thanks for your help!
> 
> Best regards,
> 
> 
> Mathieu 
> 
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Hi,

I do a lot of image processing with octave and never had an issue with
pgm files. Can you be a bit more specific on what doesn't work?
Basically, using imread should work.

Regards,
Laurent