[Insight-users] ImageReadWrite.cxx Error Message ExceptionObjectcaught !

[Iván Macía]

Hi Jörg,

Your problem has nothing to do with the configuration process. Try to change
the pixel type in the ImageReadWrite example in this line

typedef short      PixelType;

to 

typedef unsigned short   PixelType

or 

typedef unsigned char    PixelType

The exception is saying that you cannot save a png image with a pixel type
different from unsigned short or unsigned char and you are using pixels of
type short here. Another option is to change the type of input and/or output
image and not use png.

Best regards

Iván
  

-----Mensaje original-----
De: insight-users-bounces+imacia=vicomtech.es at itk.org
[mailto:insight-users-bounces+imacia=vicomtech.es at itk.org] En nombre de
"Jörg P.Pfannmöller"
Enviado el: lunes, 04 de septiembre de 2006 16:10
Para: insight-users at itk.org
Asunto: [Insight-users] ImageReadWrite.cxx Error Message
ExceptionObjectcaught !

Hello,

I have compiled ITK and ITK-Snap. The HelloWorld program compiled and
everything with ITK-Snap is ok. Now I am trying to pass some of the examples
from the software guide. I did not compile the tests, the examples and the
shared libs when I was compiling ITK. ccmake looked like that:

BUILD_EXAMPLES = OFF
BUILD_TESTING = OFF
BUILD_SHARED_LIBS = OFF
CMAKE_BUILD_TYPE = Release

Now, I have copied the ImageReadWrite.cxx into a seperate directory away
from the ITK directory tree. I also created a CMakeLists.txt with the
content:

PROJECT(ImageReadWrite)

# Find ITK.
FIND_PACKAGE(ITK)
IF(ITK_FOUND)
  INCLUDE(${ITK_USE_FILE})
ELSE(ITK_FOUND)
  MESSAGE(FATAL_ERROR
          "Cannot build without ITK.  Please set ITK_DIR.")
ENDIF(ITK_FOUND)

ADD_EXECUTABLE(ImageReadWrite ImageReadWrite.cxx )
TARGET_LINK_LIBRARIES(ImageReadWrite ITKCommon ITKIO)

The ccmake options have been:

 CMAKE_BACKWARDS_COMPATIBILITY    2.4

 CMAKE_BUILD_TYPE                 Release

 CMAKE_INSTALL_PREFIX             /usr/local

 EXECUTABLE_OUTPUT_PATH
/home/pfannmoe/Sourcen/workdir/dki-gf-detect/Insight/joerg-bin/
 ITK_DIR
/home/pfannmoe/Sourcen/workdir/dki-gf-detect/Insight/bin/ITK   
 LIBRARY_OUTPUT_PATH

/home/pfannmoe/Sourcen/workdir/dki-gf-detect/Insight/joerg-bin/

I would say that this is okay. The compilation process worked without any
problem, but the program does not work properly. When I execute a strange
mistake is printed out:

./ImageReadWrite a.png b.png

ExceptionObject caught !

itk::ExceptionObject (0x84589e8)
Location: "Unknown" 
File:
/home/pfannmoe/Sourcen/workdir/dki-gf-detect/Insight/src/ITK/Code/IO/itkPNGI
mageIO.c
Line: 473
Description: PNG supports unsigned char and unsigned short

I really don't know what went wrong. Can somebody help me?

So long pfannmoe


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