Re: [Gimp-user] Script-fu in GIMP - and batch processing.

[Kevin Cozens <kevin ve3syb ca>]

On 2021-06-09 11:22 a.m., ludo0565 dbmail com wrote:
>             (let* ((filename (car filelist))
>                    (filenamenew (string-append (car filelist) "-new")) ; as well as (filenamenew (string-append 
> filename "-new"))
>                    (image (car (gimp-file-load RUN-NONINTERACTIVE filename filename)))
>                    (drawable (car (gimp-image-get-active-layer image))))
>               (plug-in-unsharp-mask RUN-NONINTERACTIVE image drawable radius amount threshold)
>               (gimp-file-save RUN-NONINTERACTIVE image drawable filenamenew filenamenew)
[snip]
> calling the programme with this command:
>
> gimp -i -b '(batch-unsharp-mask "*.JPG" 5.0 0.5 0)' -b '(gimp-quit 0)'
>
> Unfortunately I did not have the expected success, as I got this result:
>
> batch command experienced an execution error: Error: Procedure execution of gimp-file-save failed: unknown 
> file type

If the first entry in the list is "somefile.JPG" what you have above will 
attempt to save out a new version with the name "somefile.JPG-new".

What you need to do is get the root filename "somefile" and append 
"-new.JPG" to create the new filename of "somefile-new.JPG".

The simplest way to handle the situation is to read the files from one 
directory and save the modified version to another. The not so easy method 
is to split the string on the . in the filename in to "simefile" and ".JPG" 
so you can create a string with the new name for the modified file.

--
Cheers!

Kevin.

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