Difference between revisions of "The Gimp"
Jump to navigation
Jump to search
| (3 intermediate revisions by the same user not shown) | |||
| Line 58: | Line 58: | ||
# use the motion filter on the duplicated background | # use the motion filter on the duplicated background | ||
# Turn the "floated" version of Rosie back on. | # Turn the "floated" version of Rosie back on. | ||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
<br style="clear:both" /> | <br style="clear:both" /> | ||
| Line 99: | Line 91: | ||
<br style="clear:both" /> | <br style="clear:both" /> | ||
| + | |||
| + | == Class 8: Retouching and layer masks == | ||
| + | |||
| + | Most images in magazines are highly deceptive. Take a look at some of these examples: | ||
| + | * [http://homepage.mac.com/gapodaca/digital/bikini/index.html Greg Apodaca] | ||
| + | * [http://www.briandilg.com/imaging/index.htm Brian Dilg] | ||
| + | * [http://www.glennferon.com/portfolio1/portfolio13.html Glenn C. Feron] | ||
| + | * [http://www.graphic-design.com/Photoshop/beauty_retouching.html tutorial on retouching faces] | ||
| + | |||
| + | == Class 9: animations == | ||
| + | [[Image:Anirevloopmona.gif |left|frame|An example of GIMP animations ]] | ||
| + | [http://www.niemannross.com/animate%20mona_lisa.zip Today's image (warning, 4 megabytes) contains XCF files for use with GIMP] | ||
| + | |||
| + | * Animations | ||
| + | [http://gimp-savvy.com/BOOK/index.html?node80.html Tutorial on Gimp Animation] | ||
| + | <br style="clear:both" /> | ||
| + | |||
| + | == class 10: Channels == | ||
| + | |||
== Frequently asked "How do I ... " == | == Frequently asked "How do I ... " == | ||
Latest revision as of 14:23, 29 January 2007
About the class
Oso Says "Take the Gimp Class!
The Gimp is the image editing software distributed on FreekBoxes - and used by all kinds of people to make cool pictures. This is an introductory-level class, and should be accessable to anyone who has mastered the material taught in the FreekBox Adoption Class.
Related Links
From the project's web site, gimp.org:
Class 1: Starting and Selections
right-click to download today's suggested image
- Finding and starting the Gimp
- Navigating the Gimp
- Opening files, Saving Files
- Freegeeks - Use Offline storage! Classroom machines are wiped clean every evening.
- Help! Using context sensitive help
- Palettes: Tools & Layers, (but not Channels or Paths)
- Making selections
- Dealing with Floating Selections
Something fun - change the color of the background.
- use the elliptical select tool to select the earth in today's suggested image
- float the selection
- convert the selection to a new layer
- change the foreground color (click on the black box in the tool palette)
- add a new layer with a colored background (shift - new layer)
- move the layers so the colored layer is underneath the earth
Class 2: Color select and Magic wand
Right-click to download today's suggested image
- Brief review
- Resizing images, resizing selections
- Color Select Tool
- Magic Wand
- Something fun - Float the rocket or the jellyfish (right click on the link to download)
- open today's suggested image
- open the rocket or jellyfish
- use the layer palette to add an alpha channel how to do it
- Remove the background of the rocket or jellyfish by clicking on the background with the magic wand or color selection tool. (hint - the rocket is easier)
- drag the layer (from the rocket or jellyfish layer panel) into the space cloud image
Class 3: Edges, tools, fills, paths
Right click to download today's suggested image
- Edge Select
- Move, Rotate, shear, perspective & flip
- Fill, Gradient, pattern paint
- Quick mask & save to path. (tutorial on quickmask)
- path to selection
- Manipulating Selections
- Filters
Something fun - isolate Rosie from the background
- Use the edge select tool, save to path and quickmask to create a selection around Rosie
- duplicate the background
- Select and float Rosie to a new layer. Turn off her visibility
- use the motion filter on the duplicated background
- Turn the "floated" version of Rosie back on.
Class 5: paths
Right click to download this sample image
- When you open this document, be sure to "Import Paths"
- The Paths dialog
- Selection to path
- Path to selection
- Stroking a path
- The Path Tool
- Path from text
Class 6: Common tasks
- Red eye removal
- Saving for the web
- Reducing the size of an image
Class 7: Fixing Images
A crappy photo taken with a cell phone. Right click to save this to your desktop
- Color Tools - Levels This tool can be used to adjust colors. It will be easier to understand this tool if you understand histograms.
* Use the Black Eyedropper to pick a black point. * Use the White Eyedropper to pick a white point. * Adjust mid-tones using the slider. * Color cast can be adjusted using the channels and eyedroppers
A less-than-stellar photo. Right click to save this to your desktop
The same photo after adjusting color and sharpening
If we wind up talking about color correction, you're going to need a color wheel
Class 8: Retouching and layer masks
Most images in magazines are highly deceptive. Take a look at some of these examples:
Class 9: animations
An example of GIMP animations
Today's image (warning, 4 megabytes) contains XCF files for use with GIMP
- Animations
class 10: Channels
Frequently asked "How do I ... "
- ...Save to a jpeg?
- ...Save to a GIF?
- ...Remove the background or isolate a part of the foreground? There are some basic steps...
- Don't forget to add an alpha channel
- You may want to duplicate the layer first
- Select the layer you want to work on
- Select the area you want to remove (or isolate) using one of the selection tools
- Delete the selection