Wilfred's
Photoshop actions
This file
contains two Photoshop actions (one for negatives and one for
positives) to automate dust and scratches removal using the infrared
channel generated by VueScan
ProTM. I wrote the
actions, because for certain images, VueScan's built-in cleaning
algorithm misinterpreted the IR data generated by my Minolta Dimage
Scan Elite 5400, resulting in blurred areas that did not contain any
dust and scratches to begin with.
Even in those cases where VueScan correctly interprets the IR channel,
I found that my actions did a better job in removing the defects from
the image. I also have the impression that the cleaning results are
better than those that can be achieved with Minolta's OEM software that
came with my scanner. Plus, the MInolta software can only use infrared
data with the Grain Dissolver turned on.
The actions may also work for VueScan files generated with other
scanners.
Installation
To
install, download and uncompress the .ZIP file
by double clicking on it (if this doesn't work, install a decompression
utility such as Stuffit Expander or WinZip). One of the decompressed
files is an .ATN file (Please ignore any files with a name that starts
with a period). In Photoshop,
select Window>Actions. Click on the right-pointing arrow next to the
word 'actions' and select 'Load Actions'. A window opens that allows
you to navigate your disks and locate the .ATN file. Select it and
click 'Load'. Now
you should be able to select and run my actions from the actions
palette. Refer to the Photoshop manual for further details on using
actions.
How to use
To prepare images for these actions, scan your slides or negatives with
the following settings in VueScan Pro:
- Output >
Output TIFF file: ON
- Output > TIFF
file type: 64 bit RGBI
- Filter
> Infrared Clean: None
The actions were
written for AdobeTM PhotoshopTM CS. I haven't tested
but they may also work with Photoshop 5.0 - 7.01 (full edition).
However, using older versions you will have to convert your image to
8-bit mode first (Image > Mode > 8 bits / channel).
Use these actions at your own risk. Save your original image before
running
one of these actions and make sure you don't overwrite it with the
cleaned version.The actions will not save your altered image, so
that you can decide upon your file names by yourself. For large files,
processing may be time consuming.
So far, the
actions have only been tested with Photoshop CS on
Mac OS X. I would like to receive feedback on attempts with
other versions.
Optimizing and tweaking
Some of the settings in these actions are likely to be scanner
dependent. This is most obviously the case for the levels setting,
which is preceded by an interruption to display additional
instructions. Other settings that may need revisions for your personal
use are: the radius setting for the Expand Selection command (probably
needs to be decreased for resolutions lower tha 5400 ppi), the radius
setting for the Feather Selection command (has to be smaller tan the
expansion radius) and the settings for the Dust & Scratches filter.
To change settings permanently, select an action in the Actions
palette, and select Record Again in the Actions palette menu.
If you want to run an action on multiple images in batch mode (File
> Automate > Batch), deactivate the two 'Stop' commands. Make
sure that you don't overwrite your original files with the 'cleaned'
versions.
Feedback is appreciated: send an e-mail to wilfr@gmx.net