GIMP tools - BDA

GIMP 270
Please pay attention that the file size is 6.8 KB, i.e. it is small, but the animation is not
long, too. When you create a high-quality animation and banners, the file size may be 70
or more kilobytes. Sometimes such size is not convenient. If so, you can optimise a GIF
file. When optimisation is in operation, you can view all layers and find all points that
changed compared to the previous layer. Layers are cut leaving only the points that
were changed. In this way, optimisation reduces the file size two or three times.
Using a FiltersAnimationOptimize (for GIF) command you create a new image
which you can save in a GIF format. Repeat steps 1–7. If you look at the file size, you will
see that it is smaller.
Note!
You can unoptimise the file that was optimised. For this purpose, use the
FiltersAnimationUnoptimize command.
Practice
Working with images
We have already discussed how to edit the image, what toolbars, dialogs and filters are
available in the program.
You should remember that each raster graphic image is rectangular-shaped.
We will now discuss how to work with image color models, how to make
transformations, how to change its measurements, direction, resolution and other
important settings which allow you to prepare the very basis of the image, i.e. the place
where the image is drawn or edited.
Color models
The menu entry Image includes all the main commands for working with the image. We
will first analyse the Mode entry; click on it to open a drop-down list of commands
allowing you to work with color models: