[Gimp-developer] A Photographers View of Gimp 2.6

2008-10-05 Thread Stephen DeLear





Just some thoughts on Gimp in general and 2.6 in particular.

 

Layers:  Somebody has
misplaced a box.  Where has the layers
stack window gone?  I can’t turn on the
pane under either layers, image or view. 
I can create a new layer but not see what layers are on the image.

 

Save As: I don’t seem to be able to move up a level then
down into a new folder on a save as. 
This is an issue as I’m taking tiff’s from one location, editing them
then saving as jpg into a separate folder for ftp upload.  Optimally, open (and 
save) and “save as”
would set their default folders independently as the last folder used for that
operation.

 

Unsharpen Mask:  The
GEGL unsharpen mask feature does not use standard terminology.  I have no idea 
how to set this.

 

General Wish List:

 

Locate Center Point:  Reviewing
a 22MP image a 100% means navigating an image with an equivalent size of
several feet.  What would be nice is some
way to mark the exact center of the image, where the central AF point fell, so
that it can be quickly navigated to at 100%.

 

Scale to File Size: 
Many stock sites require an image to be upsized.  For example Alamy requires an 
uncompressed
file size of 48megs from a file saved as a 8bit .JPG.  It would be useful to be 
able to set in an
uncompressed file size and have the GIMP resize to be exactly that size.

 

View at Simulated Output, 150, 300 or 500 DPI:  Back in the days of film we 
would have
laughed at anybody getting spun up that an image was not sharp when enlarged to
multiple feet from a 35mm or smaller frame. 
When scanned, we edited out images at output size, and used 100% view
for retouching.  Everybody needs a little
reminder that the question how will this look outputted, not how will this look
on a theoretical billboard.

 

High Dynamic
 Range Imaging: Which will require
greater then 8bit color.  Mathematically
putting 3 or more images bracketed on a tripod together for an expanded tonal
range.  Currently can be done natively in
CS3/CS4.

 

Color Palettes: Digital Cameras tend to output in only a
couple of color palettes.  Alien Skins
Exposure 2 plug in can simulate a number of old film palettes.  It would be 
nice to be able to do in the open
source world (patents allowing).  At
least from Kodak, datasheets including gamma curves of every film they’ve ever
made are online (RG25 FTW).

 

Noise Reduction:  The
overexposed look is in for photography lately as dark areas of an image pick up
patterning from the digital sensor (i.e. noise).  Back in the days of film 
seeing grain in an
image enlarged to several feet would be a “live with it”.  Today a number of 
companies will reject
images showing ANY noise at 100%.    Plugins  such as noise ninja are quite 
popular.  Would be nice to have a specific noise
killing enhancement in GIMP.  



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Re: [Gimp-developer] Gimp-developer Digest, Vol 73, Issue 16

2008-10-05 Thread Stephen DeLear

Alexandre



Not to be smarmy but:


operation_class-name= sdv-unsharp-mask;

and leave the standard unsharp mask.  

The current unsharp mask uses radius, amount and threashold. The new one uses 
scale and standard deviation.  The function it is performing an unsharp mask 
but it's done the equivalent of going from Farenhight to Kelvin without telling 
anyone.  This results in somebody using one image editor not being able to spec 
actions for somebody using a different editor.  This can be a big deal where 
multiple photographers are trying to produce a consistent output (for example a 
primary and secondary shooter at a wedding).

As for Qtpfsgui, the autoalign doesn't work, even on tripod mounted shots on a 
still day.  

On Sun, Oct 5, 2008 at 9:28 PM, Stephen DeLear wrote:

 Unsharpen Mask:  The GEGL unsharpen mask feature does not use standard
 terminology.  I have no idea how to set this.

Let me give you an idea: edit the source code and send us a patch
('diff -u' is your friend)

You want this file:

http://svn.gnome.org/viewvc/gegl/trunk/operations/common/unsharp-mask.c?revision=2590view=markup

:-)

 High Dynamic Range Imaging: Which will require greater then 8bit color.
 Mathematically putting 3 or more images bracketed on a tripod together for
 an expanded tonal range.  Currently can be done natively in CS3/CS4.

Qtpfsgui is your friend :-)

 Noise Reduction:  The overexposed look is in for photography lately as
dark
 areas of an image pick up patterning from the digital sensor (i.e. noise).
 Back in the days of film seeing grain in an image enlarged to several feet
 would be a live with it.  Today a number of companies will
reject images
 showing ANY noise at 100%.Plugins  such as noise ninja are quite
 popular.  Would be nice to have a specific noise killing enhancement in
 GIMP.

You mean you want all those noise reduction plug-ins and scripts
floating around GIMP in the bundle or some particular one? Could you
probably be more particular about that? :-)

I'm not saying GIMP developers will do what you say (I'm not in
position to make any claims regarding development process), but at
least you could start with review of existing solutions for GIMP
(GREYCstoration, Wavelet Denoise etc.) with samples and
recommendations. That would be a good start. Just telling people
something is missing and not providing enough information is not quite
helpful ;-)

Alexandre

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