R help - May 2025 - how to read a PSB file in R?

?s 03:17 de 20/05/2025, Ranjan Maitra via R-help
escreveu:
> I have come across this file (warning, massive, 4.3 GB) 
https://esahubble.org/media/archives/images/original/heic1502a.psb and it
appears to be a filetype I was not aware of previously.
> 
> Is it possible to read the file in R using any tool? It is an image and I
am looking for the RGB of the file.
> 
> Many thanks and best wishes,
> Ranjan
> 
> ______________________________________________
> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
https://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
Hello,

Maybe this [1] will help. It seems that that file is well known to have 
problems due to its large size but ImageMagick might be able to handle it.
And there is a magick package on CRAN [2].



[1] https://github.com/ImageMagick/ImageMagick/issues/5509
[2]  https://CRAN.R-project.org/package=magick

Hope this helps,

Rui Barradas


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On Tue May20'25 05:56:59AM, Rui Barradas wrote:
> From: Rui Barradas <ruipbarradas at sapo.pt>
> Date: Tue, 20 May 2025 05:56:59 +0100
> To: Ranjan Maitra <mlmaitra at gmx.com>, r-help at r-project.org
> Subject: Re: [R] how to read a PSB file in R?
> 
> ?s 03:17 de 20/05/2025, Ranjan Maitra via R-help escreveu:
> > I have come across this file (warning, massive, 4.3 GB) 
https://esahubble.org/media/archives/images/original/heic1502a.psb and it
appears to be a filetype I was not aware of previously.
> > 
> > Is it possible to read the file in R using any tool? It is an image
and I am looking for the RGB of the file.
> > 
> > Many thanks and best wishes,
> > Ranjan
> > 
> > ______________________________________________
> > R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
> > https://stat.ethz.ch/mailman/listinfo/r-help
> > PLEASE do read the posting guide
https://www.R-project.org/posting-guide.html
> > and provide commented, minimal, self-contained, reproducible code.
> Hello,
> 
> Maybe this [1] will help. It seems that that file is well known to have
> problems due to its large size but ImageMagick might be able to handle it.
> And there is a magick package on CRAN [2].
> 
> 
> 
> [1] https://github.com/ImageMagick/ImageMagick/issues/5509
> [2]  https://CRAN.R-project.org/package=magick
> 
> Hope this helps,
Rui, 

Thanks, but ImageMagick has a 65000 limit in each of the dimensions (I was not
aware about this earlier than today). This image in 69500 in the x extent.

I don't know that R's magick can override the ImageMagick limitation.

Best wishes,
Ranjan