Changes

=== Creating and editing image resources using an Image editor (''GIMP'') ===

=== Creating and editing image resources using an Image editor (''GIMP'') ===

GNU Image Manipulation Program (GIMP) is an image editing software. GIMP is used for raster image editing, it treats the [https://en.wikipedia.org/wiki/Raster_graphics image] as a grid of pixels, or a set of bitmaps. It is not vector image editor (Inkscape is an vector image editor). A vector editor edits [https://en.wikipedia.org/wiki/Vector_graphics vector images]- which are stored as geometric information.  GIMP is very powerful with many sophisticated features. We will learn a few commonly used functions in image editing:

GNU Image Manipulation Program (GIMP) is an image editing software. GIMP is used for raster image editing, it treats the [https://en.wikipedia.org/wiki/Raster_graphics image] as a grid of pixels, or a set of bitmaps. It is not a vector image editor (Inkscape is an vector image editor). A vector editor edits [https://en.wikipedia.org/wiki/Vector_graphics vector images]- which are stored as geometric information.  GIMP is very powerful with many sophisticated features. We will learn a few commonly used functions in image editing:

# Cropping an image

# Cropping an image

# Adding text to an image

# Adding text to an image

==== Cropping an image ====

==== Cropping an image ====

You learnt how to crop an image (reduce the image to a part that you want) using Screenshot. However, in this method, you can only grab an area that is in the shape of a rectangle. Using GIMP you can crop an image in the shape of a rectangle, but you can also use a free hand selection.

Often, you want some part of a larger image to re-use in a different resource.  GIMP allows you to select parts of an image - in different shapes or even using a freehand selection to select parts of an image. This is different from a screenshot where you can only grab an area that is in the shape of a rectangle. You can select parts of an image from Select <u>Tools → Selection Tools → Free Select</u>

You can move your cursor on the image to outline the area you want to crop, this is free hand, not necessarily in the form of a rectangle. Then crop the image to your selection through Image → Crop to Selection. We have cropped the image to free select only the teacher and the student (see the dotted line).

 

You can move your cursor on the image to outline the area you want to crop, this is free hand, not necessarily in the form of a rectangle. Then crop the image to your selection through Image → Crop to Selection. We have cropped the image to free select only the teacher and the student.

You can export this cropped image using File → Export as and export to an image format like .png or .jpeg.

You can export this cropped image using File → Export as and export to an image format like .png or .jpeg.