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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