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Picture manipulation with photoshop

Picture manipulation with photoshop. Free alternatives. Gimp http://www.gimp.org/ Versions for GNU/Linux, Windows, Mac, FreeBSD Bit more compilicated than photoshop Almost same functionality Lots of free plugins Gimp plugin registry http://registry.gimp.org/

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Picture manipulation with photoshop

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  1. Picture manipulation with photoshop

  2. Free alternatives • Gimp http://www.gimp.org/ • Versions for GNU/Linux, Windows, Mac, FreeBSD • Bit more compilicated than photoshop • Almost same functionality • Lots of free plugins • Gimp plugin registry http://registry.gimp.org/ • Gimp FX foundry http://gimpfx-foundry.sourceforge.net/ • Addon • GAP – Gimp Animation Package • Paint.NET http://www.paint.net/ • Only for Windows (XP + SP2 or later) • Lots of free plugins http://paintdotnet.forumer.com/viewforum.php?f=16

  3. BASIC Levels Auto Levels Auto Contrast Curves Color Balance Brightness / Contrast ADVANCED Hue / Saturation Desaturate Match Color Replace Color Selective Color Channel Mixer Gradient Map Photo Filter Shadow / Highligh Image Adjustments

  4. Sharpen / Blur • Sharpen: Sharpen a selection or entire image • Sharpen • Sharpen edges • Sharpen more • Unsharp mask • Soften: Soften a selection or entire image • Average • Blur • Blur more • Gaussian blur • Lens blur • Motion blur • Radial blur • Smart blur

  5. Artistic Brush Strokes Distort Noise Pixelate Render Sketch Stylize Texture Other +installed Other filters

  6. Layers • Layer style / blending options • Drop shadow • Inner shadow • Outer glow • Inner glow • Bevel and emboss • Satin • Color overlay • Gradient overlay • Pattern overlay • Stroke

  7. Layers • Fill layers • You can also use add layer mask / add vector mask • Adjustment layers • You can also use options under Image menu • Advantages of using layers • Easy to test multiple alternatives • More flexible

  8. Practicing • Begin by downloading ps_sourcefiles.zip and unzip it to some location

  9. Removing unwanted text • Several different ways to achieve this goal • Do you know any / which method do you use? • Open ps_text.jpg • Lets try simple copy - paste

  10. Removing by using copy-paste • Use a selection tool and select an area you whish to copy • Copy the selected area • Paste the copied area as a new layer • Repeat if necessary • Continue as long as you are happy with the result

  11. Removing by using clone stamp • Select clone stamp tool • Select the cloning brush • Enlarge the brush if necessary • select the source location for cloning • Location can be changed on the fly • Start fixing • Repeat as long as you are happy with the result

  12. Removing by using healing tool • Select healing tool • Select appropriate healing tool • Enlarge the size if necessary • Select the source for healing • Start healing • Continue until you are happy with the result

  13. Remove red eyes • Toolbox, select Color Replacement tool • Make the diameter smaller than the area you are working • Mode: color • Sampling: once • Limits: discontiquous • Tolerance: 30% • Antialised selected • Open swatches palette • And select the replacing color • Click one on the red eye to select the color to be replaced • Drag the brush in the eye until the eye is fixed • Note later versions of Photoshop contain this functionality automatically • Red eye tool

  14. Groupwork • Divide to groups (2-3 persons) • Or alone if there is not enough students • Give a name to your team • Little competition • By completing task your team will receive honor and reputation  • Methods are not important, only the final result • 5 minutes to complete each task

  15. Task 1 • Modify smiley face 

  16. Task 2 • Manipulate Sponge Bob 

  17. Task 3 • Mask beach image 

  18. Task 4 • Blend smiley face 

  19. Any questions? • About practical work • Deadlines • Requirements • Evaluation • Etc.

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