Use multiple pages pdf as scanned answered sheets (Feature #66)

Added by Nicolas Pettiaux almost 12 years ago. Updated over 11 years ago.

Status:Closed Start date:06/26/2012
Priority:Normal Due date:
Assignee:- % Done:

100%
Category:-
Target version:-

Description

The scanner I use produces multiple pages pdf as the results of scanning the answered sheets. Today I need to convert the pdf (how to do easily with a script ?) to good quality jpeg manually with gimp (as I co not know how to script gimp nor have found the parameters to have Imagemagick convert to it as well as gimp).

History

#1
Updated by red sea almost 12 years ago

you can used this programs:
- pdf chain
- pdf sam

regards

#2
Updated by Alexis Bienvenüe almost 12 years ago

Another suggestion: as PDF is only a container, extracting the included images can be done without modifying them using pdfimages from the poppler-utils debian package:

pdfimages scan.pdf scanroot

In some situations however, the resulting images will need 90° rotation...

#3
Updated by Nicolas Pettiaux almost 12 years ago

Alexis Bienvenüe wrote:

Another suggestion: as PDF is only a container, extracting the included images can be done without modifying them using pdfimages from the poppler-utils debian package:
[...]
In some situations however, the resulting images will need 90° rotation...

Great.

Im my case, the resulting file is in format im-001-000.pbm: Netpbm PBM "rawbits" image data. Does AMC accept this format ? or do I have to convert it to jpeg ? or another ? which is the best way and with which parameters ?

#4
Updated by Alexis Bienvenüe almost 12 years ago

Netpbm PBM "rawbits" image data. Does AMC accept this format ?

This should be OK, as this format can be read by OpenCV.

#5
Updated by Nicolas Pettiaux almost 12 years ago

good to know. Problem is solved then. Much thanks.

#6
Updated by Alexis Bienvenüe almost 12 years ago

Also note that AMC accepts multi-page PDF scans as input when calling "automatic data capture": it does convert it to bitmap single page images before processing them.

#7
Updated by Nicolas Pettiaux almost 12 years ago

Alexis Bienvenüe wrote:

Also note that AMC accepts multi-page PDF scans as input when calling "automatic data capture": it does convert it to bitmap single page images before processing them.

Thanks for the info. So, if I understand well, the situation now is : we can use with AMC a multipage pdf scan, that is created by the copy machine acting as scanner. THe rest will be automatic ?

#8
Updated by Alexis Bienvenüe almost 12 years ago

Yes.

#9
Updated by Alexis Bienvenüe over 11 years ago

  • Status changed from New to Resolved

#10
Updated by Alexis Bienvenüe over 11 years ago

  • % Done changed from 0 to 100
  • Status changed from Resolved to Closed

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