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Old 01-09-2006, 01:11 AM   #1
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Registered: Mar 2004
Distribution: SusE 8.2
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Need help doing batch-convert with Gimp

Hi -

I'm new to Script-Fu, Scheme and Gimp plug-ins. I'm running gimp 2.2.4 on SuSE Linux 9.3. I've been through all of the tutorials, and several days of trial-and-error, but I just can't get it to work.

I need to write a script that converts all of the *.png files in a directory from RGBA to indexed color. All of the files need to share the *same* palette, so I'm using the standard "Web" palette. It works fine manually, but I've had no luck getting the script to work.

When I run it from the command line, I get this:
gimp -i -b '(script2-test ../../proj/hbaview/data/gimp_scaled/*.png)' '(gimp-quit 0)'
No batch interpreter specified, using the default 'plug_in_script_fu_eval'.
batch command: experienced an execution error.
When I run it from Xtns, I get this:
(script2-test ../../proj/hbaview/data/gimp_scaled/*.png)
ERROR: unbound variable (see errobj)
The script is below. Any idea what I'm doing wrong?????

Thank you VERY much in advance!
; Adapted from:
; -
; - less gimpconvert_pdb.h =>
;     boolean gimp_image_convert_indexed
;       (gint32                  image_ID,
;        GimpConvertDitherType   dither_type,
;        GimpConvertPaletteType  palette_type,
;        gint                    num_cols,
;        gboolean                alpha_dither,
;        gboolean                remove_unused,
;        const gchar            *palette);
(define (script2-test pattern)
  (let* ((filelist (cadr (file-glob pattern 1))))
    (while filelist
           (let* ((filename (car filelist))
                  (image (car (gimp-file-load RUN-NONINTERACTIVE
                                              filename filename)))
                  (drawable (car (gimp-image-get-active-layer image))))
             (gimp-file-save RUN-NONINTERACTIVE
                             image drawable filename filename)
             (gimp-image-delete image))
           (set! filelist (cdr filelist))))
  "Convert RGB to Indexed"
  "January 8, 2006"
  SF-STRING "pattern" "/../../proj/hbaview/data/gimp_scaled/*.png")


Last edited by paulsm4; 01-09-2006 at 01:13 AM.


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