[R] EBImage do not read an Image: requested image not found or could not be loaded

[Uwe Ligges]

Cleber Borges wrote:
> Hello all,
> 
> I am trying to use the EBImage package,
> (EBImage 3.2.0 and ImageMagick 6.5.7-9 2009-11-19 Q8 (dinamic linked) 
> with R 2.10.0 winXP)
> but I get the following error:
> 
> #---------------------------------------------
>  > library(EBImage)
> Loading required package: abind
>  > ?readImage
>  >  ## Reads and display images
>  >         f = system.file("images", "lena-color.png", package="EBImage")
>  > f
> [1] "C:/R/library/EBImage/images/lena-color.png"
>  >
>  >  x = readImage(f)
> Warning message:
> In readImage(f) : requested image not found or could not be loaded
>  > x
> NULL
> 
> 
> Is there a way of to solve the problem? Or make a workaround? (but with 
> no source code compilation)
>

Works for me with the same setup.
Are yiu sure the file exists on your machine and is uncorrupted. Do you 
have access and read permissions?

Uwe Ligges



> Thanks for any reply!
> Cleber Nogueira Borges
> 
> 
> 
> ============================
> # only for information: GTK on winXP!
>  > readImage() ### open a GTK windows dialog very well in winXP!
> Error in readImage() : cancel pressed or no image could be loaded
> In addition: Warning message:
> In readImage() : requested image not found or could not be loaded
> 
> ============================
> 
> ### PATH of windows xp system
> ----------------------------------------------------------------------------------------------------------- 
> 
> 
> C:\Documents and Settings\Cleber>path
> PATH=C:\ImageMagick;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\system32\WBEM;C 
> 
> :\GTK\bin;C:\GTK\lib
> 
> C:\Documents and Settings\Cleber>convert -version
> Version: ImageMagick 6.5.7-9 2009-11-19 Q8 http://www.imagemagick.org
> Copyright: Copyright (C) 1999-2009 ImageMagick Studio LLC
> Features: OpenMP
> 
> 
> ### details about R session
> ----------------------------------------------------------------------------------------------------------- 
> 
> 
>  > sessionInfo()
> R version 2.10.0 (2009-10-26)
> i386-pc-mingw32
> 
> locale:
> [1] LC_COLLATE=Portuguese_Brazil.1252  LC_CTYPE=Portuguese_Brazil.1252  
> [3] LC_MONETARY=Portuguese_Brazil.1252 LC_NUMERIC=C                     
> [5] LC_TIME=Portuguese_Brazil.1252  
> attached base packages:
> [1] stats     graphics  grDevices utils     datasets  methods   base   
> other attached packages:
> [1] EBImage_3.2.0 abind_1.1-0
> loaded via a namespace (and not attached):
> [1] tools_2.10.0
>  >
> 
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