[petsc-users] petsc and reading/writing image files

[Barry Smith]

    Lisandro has written some code in PETSc that writes such files. He has written it as a way to save images from PETSc graphics to files but it may be possible to extend and use for your purposes without too much difficulty. 

    The code is in src/sys/classes/draw/utils/image.c 

    If you add, for example, reading such files and other processing we would be very happy to accept it in a pull request.

   Barry





> On Oct 14, 2016, at 9:20 AM, Laurent Hoeltgen <hoeltgen at b-tu.de> wrote:
> 
> Hi all,
>  
> does petsc provide some functionality to read images files (png, pgm, jpg, ...) and also to write such files? I’d like to do some low level image processing tasks where I need direct access to the pixel values. So anything that gives me a vector or matrix with this data would be perfect.
>  
> Best regards,
> Laurent
>  
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