Improve photo colors with Gimp
This tutorial is a help for improving colors in images with Gimp.
You can use Gimp to edit, improve, correct or fix the
color in any photo portrait picture.
Author Moris Garon for Gimps.de with Photo Color Software Gimp.
Translation Yoshi Toshibo.
« Gimp photo tutorials
Effect and Meaning of Colors
Each color has a symbolic meaning and a psychological effect
on the mood.
Famous painters mix paint colors in order to affect
the observer of their images. French impressionist painters used
natural fall colors and color tones of red, yellow and orange
to create suggestive feeling of transience.
Esoteric people use special mood ring colors
to affect the mood of their aura, soul, spirit or brain.
meaning of color
The primary colors blue and green have a symbolic meaning
for nature, home, hope and some psychologic effect on the trust.
The rose red color of blood often means danger, violence or
rebellion for revolution in sexual love.
True colors of the rainbow mean, represent and symbolize
the freedom and peace for gays, christians, lesbians
and for the bright united colors of benetton.
Effect of color
The tradition of Feng Shui teaches us to use the
right interior paint colors in order to improve our physical,
spiritual, and financial feeling or mood.
An intelligent room decorator is using soft pastel interior
paint colors for decorating a bathroom, a kitchen or a bedroom
in order to decorate the home with stimulating, relaxing and
harmony improving color tones.
Software for photo colors
Weak lighting or artificial light can lead to a color cast,
bad color ballance, yellowing or discoloration in a photo.
For the luck of us all, there is a good free photo editing software
for correction of color, contrast and brightness in an image.
Gimp is a free computer program, a photo software
and a professional tool for improving colors of a picture.
Photographers are using Gimp to improve, edit, correct or
fix the color of eyes, face, skin and hair in a photo portrait.
Guide for improving color with Gimp
Photos with clear, brilliant and natural colors are always
more attractive to common man and woman.
Use the following Guide as a help for improving colors in
the entire image or for the selection of an area.
#1 Improve colors
try automatic correction
Apply the Tools » Color » Levels
-tool to entire image or to the selection of an area.
Click on the Auto Correction -button
in the levels Dialog to try Gimp's automatic correction
of brightness, color and contrast.
correct colors manually
As a good photo editing Software, Gimp allows you to edit
the colors manually, with full control of result.
Use the Tools » Color » Levels -tool
to enhance, fix or improve colors manually.
The sliders on the scale of Output levels can adjust the
brightness or darkness for each color channel in the image.
Shrink the distance between sliders on the scale of Input
levels to adjust the contrast and lightness of a color
channel in the image.
The middle slider for Gamma can be used to correct
hue of each color channel in a picture.
Example : Should the image contain too much red,
then decrease the value of Gamma for the red color channel.
#2 correct hue and color balance
The hue of color determines the success of an photo portrait.
A hue can be felt as cold, warm, boring or disturbing.
Use the Tools » Colors » Color Balance -tool
to improve, edit or change the hue in images and pictures.
Adjust the slider of each color level to increase or
decrease the hue of a color.
I used the following values to improve the color balance
in my image: Red: -60 ; Green: 25; Blue: -40.
The option Preserve Luminosity makes the correction
of hue more comfortable.
Tips for the correction of hue
* Try to achieve a harmonic color balance between each color
in the image to receive the best effect.
* The right hue of color is always a matter of taste
and feeling. Try to edit each color with an equal respect.
* To much hue of a color can lead to discoloration
in the image !
#3 - edit and fix saturation
Weak, gray or pallid colors are often looking powerless,
depressive and unattractive to the observer of the image.
Strong, intensive, groovy and psychedelic colors can be sensed
as aggressive and disturbing.
The optimal saturation of color can improve an image by
making shape and colors look more beautiful.
Create a masking layer
the lowest original layer in the layers dialog to use the
duplicated layer for the retouching correction of the saturation.
Change the mode of the duplicated layer
in the layers dialog to the saturation mode.
Use the Tools » Colors » Hue + Saturation -tool
to improve saturation in the masking layer.
Apply this tool wisely to edit the hue, saturation and lightness
of each primary color tone in the image to achieve
the most improving effect.
I used a value of -60 for the saturation to correct
the colors in my image.
A photo before and after improving colors with Gimp.
« Gimp picture tutorials