Post Reply 

batch invert B&W -ve to +ve

Nov 25, 2013, 04:23
Post: #1
batch invert B&W -ve to +ve
Hi there, thanks for reading this. Unfortunately, my programming skills don't extend to writing GIMP batch instructions, so help would be much appreciated.

I need to invert a few hundred negative black and white jpgs to positive. Another lot also needs flipping left-right in addition to the inversion.

Would someone please point me to a library where there are such batch instructions, I don't expect to be the first with such a problem.
Find all posts by this user
Quote this message in a reply
Nov 25, 2013, 08:07
Post: #2
RE: batch invert B&W -ve to +ve
Try this Batch Image plugin for gimp (BIMP)
http://registry.gimp.org/node/26259

What OS are you using? windows can rotate the image by right clicking on one then "Preview"
-From there you can scroll through the pictures and rotate them using the buttons at the bottom.
(images have to be on the harddrive, the camera/memory card wont save the rotation)

Another Plugin that might do batch color invert...
DBP
http://members.ozemail.com.au/~hodsond/dbp.html

DBP further explained with screenshots here:
http://www.makeuseof.com/tag/use-gimp-to...tructions/

Goodluck!

"In order to succeed, your desire for success should be greater than fear of failure." BC
[Image: 29uocaf.png]
iFS007 tut vids on YT ~ auto color B&W landscape tut
Visit this user's website Find all posts by this user
Quote this message in a reply
Nov 25, 2013, 11:05 (This post was last modified: Nov 25, 2013 11:39 by rich2005.)
Post: #3
RE: batch invert B&W -ve to +ve
I would just go for BIMP
By the time you sort out the syntax for ImageMagick, (which is faster), you can have your images 'tweaked'
Davids' Batch Processor will not the 'invert colours'

Using BIMP
[Image: 0VWme2M.jpg]

It is in the file menu
Add individual files and/or folders
Then it is just a matter of adding procedures. Some like flip are obvious
Others you have to search for using 'Other Gimp Procedure'. Nice thing about BIMP it can pick up (some) 3rd party plugins and scripts.

Other alternatives, XnConvert is free and that is all it does, batch conversions but with a GUI.

edit
just to show good intentions the IM command for a single file is (-flip is vertical)
convert inputfile.ext -negate -flop outputfile.ext
and batch conversion, on dodgy ground here, I think something like
for /r %x in (*.jpg) do convert "%x" -negate -flop "%x.png"

** https://www.gimp-forum.net/ now answering questions**
Find all posts by this user
Quote this message in a reply
Nov 26, 2013, 02:35
Post: #4
RE: batch invert B&W -ve to +ve
[quote='iForStyle007' pid='23210' dateline='1385366854']
Try this Batch Image plugin for gimp (BIMP)
http://registry.gimp.org/node/26259

Thanks for the suggestion, BIMP looks promising. There will be a big batch of colour negatives that I need to digitize and invert, with some luck there might be a script to do that.

Meanwhile, the original problem is already sold, albeit not with GIMP. A little standalone freeware called Photopus was enough. It looks very much like BIMP or David's Batch Processor.
Find all posts by this user
Quote this message in a reply
Nov 26, 2013, 05:33
Post: #5
RE: batch invert B&W -ve to +ve
(Nov 26, 2013 02:35)csomole Wrote:  [quote='iForStyle007' pid='23210' dateline='1385366854']
Try this Batch Image plugin for gimp (BIMP)
http://registry.gimp.org/node/26259

Thanks for the suggestion, BIMP looks promising. There will be a big batch of colour negatives that I need to digitize and invert, with some luck there might be a script to do that.

Meanwhile, the original problem is already sold, albeit not with GIMP. A little standalone freeware called Photopus was enough. It looks very much like BIMP or David's Batch Processor.

Nice! Glad you found a solution, have a great week Smile
Visit this user's website Find all posts by this user
Quote this message in a reply
Post Reply 


Possibly Related Threads...
Thread: Author Replies: Views: Last Post
  How to batch open multiple PDF files and batch export them again as PDF files kasioumis 1 119 Nov 8, 2018 09:03
Last Post: paynekj
  invert not working, no LqR remadepreacher 1 575 Jun 22, 2017 08:09
Last Post: ythgilb
  invert not working, no LqR remadepreacher 1 412 Jun 22, 2017 08:04
Last Post: ythgilb
  Batch adding logo to lots of pictures kenny1999 2 751 Sep 27, 2014 08:02
Last Post: rich2005
  batch processing to obtain several different versions of a picture esteban 3 639 Sep 23, 2014 14:44
Last Post: esteban

Forum Jump:


GIMP ForumPortalArchiveContactTermsRSS