Lab 5: Image Editing with the GIMPGIMP

There are several image editing tools for Windows and Linux.
Today we will focus on the GIMP (GNU Image Manipulation Program).
The GIMP is a very powerful bitmap and vector graphics editor similar to Adobe Photoshop and PaintShop Pro.
ImageMagick is much easier to use but its features are more limited.


  1. Click the K menu, move to Multimedia, move to Graphics, and click The Gimp.
  2. If you are asked to configure The GIMP, just click OK or press Enter several times.
  3. The tip of the day gives some helpful hints to get you started. Click Close after reading a few tips.


Creating a New ImageImage

  1. Click File, New. Specify width 300, height 100, transparent. Click OK.
  2. A window labeled Untitled appears. The checkered background indicates that it is transparent.
  3. Right-click in that window, move to File, click Save As, and type lastname .xcf where lastname is your last name.

Adding Text

  1. Double-click the Text tool (T in the Gimp window).
  2. Tick the Use Dynamic Text box. Click Close.
  3. Click in the image window. Select a font (e.g. indigo joker), style and size.
  4. Type your name and preview it. The GNU Dynamic Text tool creates another layer.

Selecting Colours

Adding a Brush StrokeBrush

  1. Click the brush tool. Select a brush shape. Select a different colour.
  2. Click in the Background layer of the image in the Layers window.
  3. Underline your name with a brush stroke by dragging the mouse.

Moving Graphics

  1. Click the GDynText Layer in the Layers window.
  2. Click the Move tool (four arrows).
  3. Drag the text to reposition it to be on top of the brush stroke. Note that different layers are moved independently.
  4. Click the Rotate tool.
  5. Drag the text to rotate it slightly and click Rotate.

Saving and Exporting

Photo EditingLayers

  1. Open mandrill.jpg or find another .jpg photograph.
  2. Open it in the GIMP by choosing Open from the File menu.
  3. For the following steps, right-click the image and select the Image menu.
  4. Choose Mode and click Grayscale. Click Undo. Choose Mode again and select Indexed.
  5. Choose Colors. Try options for Color Balance, Hue/Saturation, Brightness/Contrast, Curves, Invert and Posterize.
  6. Choose Transforms. Try rotating 90, 180, and 270 degrees.
  7. Choose Canvas Size. Type different numbers for width and height.
  8. Choose Scale Image. Change the width and height.

E-Mailing as an Attachment