[Rtk-users] Converting 3D Image to 2d image

[Simon Rit]

Hi,
Yes, it should. Have you built the default ITK modules? If yes, I'm not
sure what's going on but you can ask on itk discourse
<http://discourse.itk.org/>.
Simon

On Wed, Apr 1, 2020 at 7:53 PM Henry Cope <henrydaviscope at gmail.com> wrote:

> Good Afternoon,
>
> I'm currently trying to create a program to read a given 3D image, perform
> one forward projection from a varying rotation (Only one slice is made),
> convert that to a 2D image and write it to a PNG file. I've modified the
> base rtkforwardprojection.cxx program by adding code from
> ImageReadExtractWrite.cxx to convert to a 2d image. However, when I
> attempt to output to a PNG file, I receive the error:
>
> Description:  Could not create IO object for writing file
> projectedImage.png
>   Tried to create one of the following:
> DCMImagXImageIO
>     GDCMImageIO
>     HisImageIO
>     HncImageIO
>     HndImageIO
>     ImagXImageIO
>     MetaImageIO
>     OraImageIO
>     TIFFImageIO
>     XRadImageIO
>     XimImageIO
> You probably failed to set a file suffix, or
>     set the suffix to an unsupported type.
>
> When I look on the ITK wiki, it states that png is a supported file type,
> so I'm wondering what I'm doing wrong
>
> Henry
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