Changes

==== Using a drawing software - [http://tuxpaint.org/ Tux Paint] ====

==== Using a drawing software - [http://tuxpaint.org/ Tux Paint] ====

You can also use a drawing software application to draw an image.  Open Tux Paint on your computer, through <u>Applications → Education →   Tux Paint</u>

You can also use a drawing software application to draw an image.  Open Tux Paint on your computer, through <u>Applications → Education →</u> [[File:Tux paint logo.png|frameless|25x25px]]<u>Tux Paint</u>

[[File:Tux_Paint_-_creating_a_picture.png|thumb|350x350px|Image 4 - Creating a drawing using brush in Tux Paint|left]]

[[File:Tux_Paint_-_creating_a_picture.png|thumb|350x350px|Image 4 - Creating a drawing using brush in Tux Paint|left]]

[[File:COL_-_Creating_an_image_using_Screenshot_-_select_area.png|thumb|450x450px|Image 5 - Creating an image using Screenshot (select area to grab)]]One of the simplest and yet very powerful ways of creating an image is to simply take a picture of your computer screen. You may have opened a web page on which there is an image or some text you want to store as an image, or it may be from a file on your computer, or it may be a snapshot of a video you are playing.

[[File:COL_-_Creating_an_image_using_Screenshot_-_select_area.png|thumb|450x450px|Image 5 - Creating an image using Screenshot (select area to grab)]]One of the simplest and yet very powerful ways of creating an image is to simply take a picture of your computer screen. You may have opened a web page on which there is an image or some text you want to store as an image, or it may be from a file on your computer, or it may be a snapshot of a video you are playing.

You can use the tool Screenshot for this. Open Screenshot on your computer, through <u>Applications → Accessories →   [https://help.ubuntu.com/stable/ubuntu-help/screen-shot-record.html Screenshot]</u>

You can use the tool Screenshot for this. Open Screenshot on your computer, through <u>Applications → Accessories →</u>  [[File:Screeshoto logo.png|frameless|25x25px]] <u>[https://help.ubuntu.com/stable/ubuntu-help/screen-shot-record.html Screenshot]</u>

You have an option of capturing the entire display on your screen or selecting a smaller area. For the latter option, chose ‘select area to grab’ (image 5). Then use your mouse to drag drop the (rectangular) area you want to capture. (Move your cursor to the left top of the area, keep your left mouse click pressed, move the cursor to the right bottom point and release it).

You have an option of capturing the entire display on your screen or selecting a smaller area. For the latter option, chose ‘select area to grab’ (image 5). Then use your mouse to drag drop the (rectangular) area you want to capture. (Move your cursor to the left top of the area, keep your left mouse click pressed, move the cursor to the right bottom point and release it).

Whether we capture using camera or an application called TuxPaint or Screenshot, the images have been captured digitally based on the resolution of the computer or mobile screen; this is indicated in terms of pixels.  Such images are called raster images and they are dependent on the resolution of the device for their quality.  All raster graphics or images are those that involve capturing some underlying image or object using various devices.  For more information on raster images, see [https://en.wikipedia.org/wiki/Raster_graphics here]. GNU Image Manipulation Program (GIMP) is an image editing software, that can edit and make raster images.  There is another kind of digital image called the [https://en.wikipedia.org/wiki/Vector_graphics vector graphics] which is not discussed in the toolkit.  Vector graphics or images involve creating drawings based on defined geometrical information; this can be defined in terms of the shapes and is not governed by the resolution of the device.  Inkscape is a tool that can be used to create and edit vector images.   

Whether we capture using camera or an application called TuxPaint or Screenshot, the images have been captured digitally based on the resolution of the computer or mobile screen; this is indicated in terms of pixels.  Such images are called raster images and they are dependent on the resolution of the device for their quality.  All raster graphics or images are those that involve capturing some underlying image or object using various devices.  For more information on raster images, see [https://en.wikipedia.org/wiki/Raster_graphics here]. GNU Image Manipulation Program (GIMP) is an image editing software, that can edit and make raster images.  There is another kind of digital image called the [https://en.wikipedia.org/wiki/Vector_graphics vector graphics] which is not discussed in the toolkit.  Vector graphics or images involve creating drawings based on defined geometrical information; this can be defined in terms of the shapes and is not governed by the resolution of the device.  Inkscape is a tool that can be used to create and edit vector images.   

GIMP can be opened from Applications--->Graphics--->[https://www.gimp.org/ GIMP Image Editor] (image 7). GIMP stands for GNU Image Manipulation program.

GIMP can be opened from Applications--->Graphics--->[[File:GIMP Icon without brush.svg|frameless|24x24px]] [https://www.gimp.org/ GIMP Image Editor] (image 7). GIMP stands for GNU Image Manipulation program.

GIMP is very powerful with many sophisticated features. We will learn a few commonly used functions in image editing:

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