[Gimp-user] Feature Request: Smushi.it integration for GIMP

2011-03-28 Thread Guy Saban
Hi,

I was wondering if anyone would consider it helpful to have a file save option 
to use smush.it when saving an image with GIMP.

 
All the best,
Guy Saban
 
Drupal Website Development and Management, Website Marketing and Analytics
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Re: [Gimp-user] white balance in JPG files.

2011-03-28 Thread Ofnuts

On 03/28/2011 05:08 PM, s.kortenweg wrote:
 I have some jpg files with a wrong white balance.
 Flash refused by taking the picture.
 How can i correct this in GIMP?

http://luca.dealfaro.org/Whitebalance

This is a very simple script to use:

- use the color picker to set the foreground color from some part of the 
picture that should be grey or white.
- call filter,
- done.

The colortemperature script by the same author is also a good catch.


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Re: [Gimp-user] how to apply a stepping curve

2011-03-28 Thread yahvuu
Hi all,

On Mon, Mar 21, 2011 at 7:09 PM, rich for...@gimpusers.com wrote:
 I think you will have to fake it. Draw the curve and keep it as a path.  
 Assuming you want (say) the x-axis to have equal increments, set up the grid, 
 enable snap-to-grid, and paint constraining the line with shift for 
 point-to-point and ctrl for angles

... here's how to use the path as specification for a curves-alike
color mapping:

  0. Install Rob Antonishen's Sample Gradient along Path Script [1]

  1. Create image 256x256 pixels
  2. Draw gradient black to white from bottom to top
  3. Create the desired curve as a path
  4. Create a new gradient via sample gradient along path
  - with 256 steps and
  - sample radius = 1
  5. Switch to target image
  6. Apply Colors-Map-Gradient Map

not for the faint of heart...


regards,
peter


[1] 
http://ffaat.pointclark.net/blog/archives/155-GIMP-Script-Sample-a-Gradient-along-a-Path.html
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Re: [Gimp-user] how to apply a stepping curve

2011-03-28 Thread Simon Budig
Krzysztof Żelechowski (giecr...@stegny.2a.pl) wrote:
 When I create a curve to apply to an image, GIMP gives me only two choices: 
 a freehand curve and a smooth curve.  I need to apply a stepping curve 
 (piecewise flat) and I am out of luck because there is no such option.  

It should be reasonably easy to implement a new curve type that
implements this kind of piecewise constant function. One starting point
for this could be the function gimp_curve_calculate() in
app/core/gimpcurve.c.

IMHO also interesting would be a piecewise linear type that connects the
control points with straight lines.

Bye,
Simon
-- 
  si...@budig.de  http://simon.budig.de/
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