. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 3.4.2 Change the Size of an Image (Scale) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 3 . . . . 72 6.2.1 Images with an Optimal Size/Quality Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 6.2.2 Reducing the File Size Even More . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87 7.9 Creating a Brush with Variable Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91 7.10 Gradients

. . . . . . . . . . . . . 26 3.4.2 Change the Size of an Image for the screen . . . . . . . . . . . . . . . . . . . . . . . 26 3.4.3 Change the Size of an Image for print . . . . . . . . . . . . . . . . . . . . . . 67 6.2.1 Images with an Optimal Size/Quality Ratio . . . . . . . . . . . . . . . . . . . . . . 67 6.2.2 Reducing the File Size Even More . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84 7.9 Changing brush size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88 7.9.1 How to change the size of a brush . . . . . . . . . . . . . . .

including brushes, a pencil, an airbrush, cloning, etc. • Tile-based memory management so image size is limited only by available disk space • Sub-pixel sampling for all paint tools for high-quality edit the text in it. You can also move the text around in the image, or change the font, or the font size. You can use any font available on your system. You can control justification, indentation, and line terminate or start to malfunction due lack of RAM. How do you choose a number for the Tile Cache size? Here are some tips to help you decide what value to use, as well as a few tricks: • The easiest

tools including brushes, a pencil, an airbrush, cloning, etc. • Tile-based memory management so image size is limited only by available disk space • Sub-pixel sampling for all paint tools for high-quality will find in Photoshop. Layers in Gimp don’t come in one size only; you can create layers of different sizes, or Gimp will optimize the layer size automatically. • Gimp has a much more intuitive way of RESOLUTION AND CANVAS SIZE? Resolution In A New Image Let’s try to make a new image in Gimp with File|New. In the New Image dia- log box, you’ll find that the only available size parameters for the new

Introduction to Gimp Interface The Tile Project • TO CREATE A NEW FILE File – New Set Size and Resolution and Colour Width: 640px Height: 400px Advanced Options Resolution(X&Y): a different effect. Experiment using also different Modes Different tips available Size determines how large the tip is Aspect ratio changes the width vs height of tip. Changes Image – Canvas Size Copy Paste • Edit - Copy Selection • Edit – Paste as a New Layer Check out size of original image

right-click on “paintbrush” and select “pencil” • From ”Tool Options”, change the size of the brush • Change size to a very large number (e.g. 1144.00) to obtain a large circular brush • Draw over key and rotating your mouse wheel • Color the dendrite pixels white using a smaller pencil tool (size ~10). Be as accurate as possible! 6 In-Class Activity: Segmentation Using GIMP Saving the segmentation

> Remove all Guides Cropping Images • Useful to crop unnecessary edges away • Can reduce file size when bringing images into a vector file • Use the ‘Rectangle Select’ tool (R) to draw a box Figures Scaling Images • GIMP can be used to scale the size of your image – Image > Scale Image Avoid making your images bigger than original size, bitmaps do not scale up well! Exporting Images •

problem area (circled in this example) 2. Click on the Healing Tool button a. Change the size of your healing brush if you want 3. CTRL click to select your source area (a clean area on export it as a more common file type. 1. File 2. Export As… You can change the size of your healing tool (the brush) here Before After 5 3. Name your file

Page Setup 1 Click File 2 Select New... 3 Create a New Image (window) 4 Select desired canvas size 5 Image options will appear Click OK 1 2 3 4 5 Sorting Layers 1 This is the layer tab in choose a soft brush. 4 Set layer mode to dodge 5 Use the tools properties panel to adjust brush size and more 6 Adjust opacity to adjust strength of dodge effect Basic editing exemplar 1 To adjust

window Zoom + Zoom in - Zoom out 1 Zoom 1:1 Ctrl E Shrink wrap This fits the windows to the image size. Shift Ctrl E Fit image in window Shift wheel Zoom Scrolling (panning) Ctrl arrows Scroll canvas