Thanks Chris Olbekson, I have got the reference on your marvelous tool.
http://wordpress.org/support/topic/plugin-add-linked-images-to-gallery-simply-removes-the-src-tag-result-empty-image?replies=2#post-3035230
Media tools works perfect, but there is a bug which is very important for me.
I imported many posts from LiveJournal to Wordpress with Livejournal Import (LJ import version as June 2012),
but your media tool cannot convert images from these imported posts.
E.g the Log:
Will the EUR/CHF never rise over 1.22 again ?
as in http://backup.snbchf.com/2012/03/will-the-eurchf-never-rise-over-1-22-again/
Running import media tool
Upload Error: Could not upload image. Check for malformed img src url
Upload Error: Could not upload image. Check for malformed img src url
Upload Error: Could not upload image. Check for malformed img src url
Img already in media library
Upload Error: Could not upload image. Check for malformed img src url
Upload Error: Could not upload image. Check for malformed img src url
Upload Error: Could not upload image. Check for malformed img src url
Upload Error: Could not upload image. Check for malformed img src url
Upload Error: Could not upload image. Check for malformed img src url
Upload Error: Could not upload image. Check for malformed img src url
Upload Error: Could not upload image. Check for malformed img src url
Img already in media library
Img already in media library
Upload Error: Could not upload image. Check for malformed img src url
Upload Error: Could not upload image. Check for malformed img src url
Img already in media library
Img already in media library
Upload Error: Could not upload image. Check for malformed img src url
Upload Error: Could not upload image. Check for malformed img src url
Upload Error: Could not upload image. Check for malformed img src url
Upload Error: Could not upload image. Check for malformed img src url
Upload Error: Could not upload image. Check for malformed img src url
Upload Error: Could not upload image. Check for malformed img src url
No external images found for Will the EUR/CHF never rise over 1.22 again ?
or one simple image in
http://backup.snbchf.com/2012/05/the-vicious-cycle-of-the-us-economy-or-why-the-us-dollar-must-ultimately-fall-again/
Log:
Running import media tool
Upload Error: Could not upload image. Check for malformed img src url
No external images found for The vicious cycle of the US economy or why the US dollar must ultimately fall again
Media tool complete (Post ID 23) in 3.108 seconds. 1 errors
Such an un-parsable image is: