Add .36 REAL megapixels to your E-300 pics for free

User: Flat view
Navigation:   ^ Forum   |< First   < Previous   Next >   Next New >> 

Forum   Olympus SLR Talk
Subject   Add .36 REAL megapixels to your E-300 pics for free  [SIMILAR]
Posted by   Godlovesyou  [PROFILE]  [GALLERY]
Date/Time   20:53:41, 12 January 2005 (GMT)

When I run dcraw under The Gimp image editor (both are free), I get a 3337 x 2502 instead of the normal 3264 x 2448. This is a gain of a rather significant .36 megapixels, which bumps the pixel count up to 8.35 MP. It will probably do something similar with the E-1.

I thought the OTF forum would want to know this, as there is real information to be found in the added pixels (it doesn't just make the image larger). I would like others to confirm this for me. I've combined two of my posts below on installation of dcraw and the Gimp as well as the advantages of the Gimp and dcraw.


dcraw does not work under Windows as is. Follow these 5 simple steps to install:

1) Install the Gimp 2.2 using the link below (install GTK first and then the Gimp).

2) Download UfRaw if you have the E-1 or RawPhoto (http://www.princeton.edu/~mplough/rawphoto.html) AND dcraw.exe (http://home.arcor.de/benjamin_lebsanft/) if you use the E-300.

3) Place the UfRaw.exe (for E-1) or rawphoto.exe (E-300) in Gimp 2.2\lib\gimp\2.0\plug-ins
4) (Only for E-300) Place dcraw.exe in GIMP 2.2\bin

5) Open a Raw file in the Gimp (or use Open with... by right clicking on the .orf file).

Usually, your base GIMP folder is in c:Program Files. There may be some error messages using Windows ME. If so, reply any time. Hopefully UfRaw comes out with 6.2 soon so we can skip the 4th step.

Try the Gimp 2.2 at http://gimp-win.sourceforge.net/stable.html. This image editor has many of the features of Adobe Photoshop. The user interface may take a bit more time to get used to, but it becomes intuitive after a couple of sessions and is almost entirely customizable. It has been discussed on dpreview many times and has gained increased functionality since 2.0. (Install GTK first and then the Gimp.)

Gimp uses UfRaw for RAW conversion: see http://www.aei.mpg.de/~udif/UFRaw/. Converts in 16-bit and allows for custom tone curve profiles. Real-time histogram in RGB. UfRaw uses dcraw as the conversion utility, which is an excellent conversion utility according to http://www-ise.stanford.edu/%7Etingchen/main.htm as it uses VNG interpolation. UfRaw has dcraw already built in.

Advantages of Gimp: free; has USM, RGB curves, levels, hue/saturation, gaussian blur, despeckle, NL filter, color balance, customizable palettes, layers (including overlay, multiply, hard/soft light, etc. and opacity control), dynamic keyboard shortcuts, scripting, etc.

Advantages of UfRaw: free; 16-bit conversion; very good color; ease of use; wide control over WB, shadow detail, and exposure compensation (both highlight and black point); excellent sharpness in RAW conversion; low noise conversion; can clip/unclip highlights; over/underexposure indicators; spot and camera WB.

On a side note, if you feel strongly about protecting the unborn, you may want to stay away from Adobe anyway: see http://www.fightpp.org/
Message  
Navigation  
|< First
< Previous

Below is the navigator for this thread, you can use this to view other messages in this thread. You can use the previous and next buttons to scroll through the messages in this thread. Or the 'Next New' button to jump to the next newly posted message.

Subject Posted by When
Shortcut keys:
fForum
nNext
wNext new
rReply
qQuote
Back to:  Forum: Olympus SLR Talk   Forums 
 
 
Copyright 1998-2010 Digital Photography Review, dpreview.com Ltd.