imread fails to open 8-bits BMP (2.9.6)

[Matthieu]

hi,

i use octave 2.9.6 with the latest octave-forge (compiled with Gcc 4).
everything is fine with jpg,png.... format
but imread fails to open gray pictures in bmp format:

"imread: invalid image depth".

In the new imread.m, image depth is given by a
grep on identify command :

identify -verbose %s | grep -e "Red: " -e Type

but this command fails on gray picture, because the field "Red" returned by
"identify" is empty :

    "" Colorspace: Gray
 Channel depth:
   Gray: 8-bits
 Channel statistics:
   Red:
""
  
Any ideas?


Thanks!
  
 

--
Matthieu Debailleul,