Re: [Gimp-user] gimp-file-save : how to specify the JPEG quality
On Wednesday, June 19, 2019, Helmut Jarausch via gimp-user-list < gimp-user-list@gnome.org> wrote: > Hi, > > I've found a script for batch "wavelet sharpening" all images in a folder. > This .scm script uses the function gimp-file-save. > The (sharpened) image has only 6 instead of 10 Mbytes. A JPEG quality > estimator shows > 98% for the original file and only 90% for the sharpened file. > When exporting a file to JPEG interactively one can specify the quality. > But how to do this in a non-interactive procedure. When saving a JPEG, in the advanced options, there is a toggle to save the current settings as the default. That should fix any script using file-save. PNG has the same. carol ___ gimp-user-list mailing list List address:gimp-user-list@gnome.org List membership: https://mail.gnome.org/mailman/listinfo/gimp-user-list List archives: https://mail.gnome.org/archives/gimp-user-list
Re: [Gimp-user] gimp-file-save : how to specify the JPEG quality
Hi Helmut, On Wed, 19 Jun 2019 11:22:25 +0200 Helmut Jarausch via gimp-user-list wrote: > Hi, > > I've found a script for batch "wavelet sharpening" all images in a > folder. > This .scm script uses the function gimp-file-save. > The (sharpened) image has only 6 instead of 10 Mbytes. A JPEG quality > estimator shows > 98% for the original file and only 90% for the sharpened file. > When exporting a file to JPEG interactively one can specify the quality. > But how to do this in a non-interactive procedure. > please try using gimp-file-jpeg-save instead - it has a quality parameter. You can find it in the procedural db. > Here is the full procedure > ; > ; Version 1.0 07.02.2012 for capnhud > > ; See http://gimpchat.com/viewtopic.php?f=8=3701 > > ; command line > ; gimp -i -f -d --verbose -b "(batch_wavelet_sharpen > \".jpg\" \"sharpened\")" -b "(gimp-quit 0)" > > (define selffilename "\n- batch_wavelet_sharpen.scm") > > ; Batch mode wrapper > (define (batch_wavelet_sharpen amount radius file_extension > destination_directory) >(let* > ( >(destination_file "") >(varFileList (cadr (file-glob (string-append "*" file_extension) > 1))) ; make a list of all the files that match the file extension > >; Adjust these values to suit > ; (amount 0.3) > ; (radius 1.0) >(luminance TRUE) > ) > (gimp-message-set-handler ERROR-CONSOLE) > (if (not (file-exists? destination_directory)) >(error (string-append "Error: directory " destination_directory > " doesn't exist")) >(if (= (file-type destination_directory) FILE-TYPE-DIR) > () > (error (string-append destination_directory " is not a > directory")) >) > ) > > ; loop through all the files in the list > (for-each >(lambda (filename) > (let* ( > (image (car (gimp-file-load RUN-NONINTERACTIVE filename > filename))) ; load the image > (drawable (car (gimp-image-flatten image))) >) >(gimp-message (string-append "processing-" filename)) > > ; Thing to do goes here >(plug-in-wavelet-sharpen RUN-NONINTERACTIVE image > drawable amount radius luminance) > >(set! destination_file (string-append > destination_directory DIR-SEPARATOR filename)) >(gimp-file-save RUN-NONINTERACTIVE image drawable > destination_file destination_file) >(gimp-image-delete image) ; unload the > image > ) >) >varFileList > ) >) > ) > > > ___ > gimp-user-list mailing list > List address:gimp-user-list@gnome.org > List membership: https://mail.gnome.org/mailman/listinfo/gimp-user-list > List archives: https://mail.gnome.org/archives/gimp-user-list -- - Shlomi Fish http://www.shlomifish.org/ https://github.com/shlomif/what-you-should-know-about-automated-testing When people agree with me I always feel I must be wrong. — https://en.wikiquote.org/wiki/Oscar_Wilde (via fortune-mod) Please reply to list if it's a mailing list post - http://shlom.in/reply . ___ gimp-user-list mailing list List address:gimp-user-list@gnome.org List membership: https://mail.gnome.org/mailman/listinfo/gimp-user-list List archives: https://mail.gnome.org/archives/gimp-user-list
[Gimp-user] gimp-file-save : how to specify the JPEG quality
Hi, I've found a script for batch "wavelet sharpening" all images in a folder. This .scm script uses the function gimp-file-save. The (sharpened) image has only 6 instead of 10 Mbytes. A JPEG quality estimator shows 98% for the original file and only 90% for the sharpened file. When exporting a file to JPEG interactively one can specify the quality. But how to do this in a non-interactive procedure. Here is the full procedure ; ; Version 1.0 07.02.2012 for capnhud ; See http://gimpchat.com/viewtopic.php?f=8=3701 ; command line ; gimp -i -f -d --verbose -b "(batch_wavelet_sharpen \".jpg\" \"sharpened\")" -b "(gimp-quit 0)" (define selffilename "\n- batch_wavelet_sharpen.scm") ; Batch mode wrapper (define (batch_wavelet_sharpen amount radius file_extension destination_directory) (let* ( (destination_file "") (varFileList (cadr (file-glob (string-append "*" file_extension) 1))) ; make a list of all the files that match the file extension ; Adjust these values to suit ; (amount 0.3) ; (radius 1.0) (luminance TRUE) ) (gimp-message-set-handler ERROR-CONSOLE) (if (not (file-exists? destination_directory)) (error (string-append "Error: directory " destination_directory " doesn't exist")) (if (= (file-type destination_directory) FILE-TYPE-DIR) () (error (string-append destination_directory " is not a directory")) ) ) ; loop through all the files in the list (for-each (lambda (filename) (let* ( (image (car (gimp-file-load RUN-NONINTERACTIVE filename filename))) ; load the image (drawable (car (gimp-image-flatten image))) ) (gimp-message (string-append "processing-" filename)) ; Thing to do goes here (plug-in-wavelet-sharpen RUN-NONINTERACTIVE image drawable amount radius luminance) (set! destination_file (string-append destination_directory DIR-SEPARATOR filename)) (gimp-file-save RUN-NONINTERACTIVE image drawable destination_file destination_file) (gimp-image-delete image) ; unload the image ) ) varFileList ) ) ) ___ gimp-user-list mailing list List address:gimp-user-list@gnome.org List membership: https://mail.gnome.org/mailman/listinfo/gimp-user-list List archives: https://mail.gnome.org/archives/gimp-user-list
