Using Paint.net

Skills: change view, rotate, select a portion of, crop, resize, change contrast, filter an image, undo an operation

IT concepts: pixel, image processing operation

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Image processing in context

• Internet concepts– Applications– Technology– Implications for

• Individuals• Organizations• Society

• Internet skills– Application development– Content creation

• Text• Images• Audio• Video

Using Paint.net

http://www.getpaint.net/

Paint.net screen layoutOpen images

Current imageTools

Status line

Commandmenus

• Tutorials: http://paintdotnet.forumer.com/viewforum.php?f=29• Community: http://paintdotnet.forumer.com/

Purpose of selected tools

Select a rectangular area

Add text to the imageDraw a rectangle

What do each of the others do?

Windows > Tools

Status line: describes the selected tool

Tool description with a help hint Image size

Cursor location (0, 0 is the upper left hand corner)

Status line for the Rectangular Selection tool:

You use the Rectangular Selection tool in cropping an image.

You can also move, copy, and modify selected areas.

Tip: watch the status line

These change as you make the selection.

You can adjust selections one pixel at a time using the arrow keys.

The status line changes while you are making a selection:

Rotate an image

Image > Rotate

View menu

Changing the view does not alter the image, just what you see while working on it.

Adjusting contrast

Adjustments > Brightness/contrast

Immediate feedback – high contrast

Immediate feedback – low contrast

Experiment – you can undo everything

Paint.net keeps a complete history of every thing you do, and you can undo it one step at a time by typing control-z.

The history window displays every step you have taken, and you can use it to immediately revert the image to any earlier point.

Window > History

Apply the ink sketch effect

Effects > Artistic > Ink sketch

Resize an image

Image > Resize

If you check Maintain aspect ratio, changing either the width or height automatically adjusts the other.

Resizing without maintaining the aspect ratio

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