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Image editing for beginners (Gimp)
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Image editing for beginners (Gimp)

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The presentation about Image Editing using Gimp (the GNU Image Manipulation Protocol) from a workshop I teach. Included is an overview of the different image file types, step-by-step walkthroughs of …

The presentation about Image Editing using Gimp (the GNU Image Manipulation Protocol) from a workshop I teach. Included is an overview of the different image file types, step-by-step walkthroughs of common editing techniques.

Published in: Technology, Art & Photos

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Transcript

  • 1. Image Editingfor BeginnersTeresa Beary(May 2013)Photo by Flickr user p.Gordon
  • 2. This powerpointExamples from presentationTraining companionExercisesExample images
  • 3. My image editing background…
  • 4. CuriosityPurpose
  • 5. Image formats.bmp .gif .jpg.png .tiff
  • 6. Depends on the situation:.bmp .gif .jpg .png .tiff
  • 7. Depends on the situation:.bmp .gif .jpg .png .tiff.gif .jpg .png
  • 8. 8-bit 24-bit.gif .jpgPhoto by Flickr user texastkc254
  • 9. 8-bit 24-bit.gif .jpgDistortion due to reduced color palette.Photo by Flickr user texastkc254
  • 10. 8-bit256 colors24-bit16 million colors.png.gif .jpg.png
  • 11. .png .jpg.gif
  • 12. .png .jpg.gif
  • 13. .gif.jpg.pngPhoto by Flickr user kooklanekookla
  • 14. .gif.jpg.pngShrink each image and stretch it back to original size and you get the above.Notice the artifacts due to the compression method of the image type.Photo by Flickr user kooklanekookla
  • 15. This is text in PowerPoint.
  • 16. Text, line art, transparencyPhotographs.jpg.png
  • 17. How do I get started?
  • 18. PowerPoint
  • 19. MakeMoneyHaveFunDoGoodBugs found by my team!2012201020092008Date Requested Approved7/5/2012 Yes Yes9/11/2012 Yes No11/3/2012 No
  • 20. Step-by-stepCreate whatever you need in PowerPointGo to File > Save as > Change “Save as type” to PNGCrop (& resize) using Gimp123
  • 21. GimpThe GNU Image Manipulation Protocol
  • 22. {Live class demo using Gimp}
  • 23. {Live class demo using Gimp}
  • 24. Alpha channel, Layer mask, Fuzzy brushes{Live class demo using Gimp}
  • 25. OpacityOpaqueSemi-transparent(translucent)Transparent
  • 26. Working with layers{Live class demo using Gimp}
  • 27. Flickr: Bruce GuenterFlickr: Daniel E LeeFlickr: fab-fotoFXFlickr: hlkjgk Flickr: dougbelshaw Flickr: vareseFlickr: theakshay Flickr: Stéphane GaudryFlickr: geezaweezer Flickr: theilr Flickr: cookipediachef
  • 28. Selective colorPhoto by Flickr user PGrandicelli{Live class demo using Gimp}
  • 29. What else can Gimp do?
  • 30. Adjust brightness & contrastPhoto by Flickr user bddemir
  • 31. Colorize (Hue & Saturation)Photo by Flickr user bddemir
  • 32. Oil Painting (built-in scripts)Photo by Flickr user bddemir
  • 33. Comic book (scripts)Photo by Flickr user bddemir
  • 34. Color map & supernova (scripts)Photo by Flickr user bddemir
  • 35. Gold-plated effect
  • 36. Create from scratch
  • 37. Compositions
  • 38. Typography
  • 39. PrtScrhttp://www.fiastarta.com/PrtScr/
  • 40. Select:All monitorsActive windowRectangular areaFree selectAnnotate directlyMagnifier
  • 41. Resolution
  • 42. Screen = pixelsSize: 600 x 375 pxResolution: 72 ppiPrint size: 8.3” x 5.2“Photo by Flickr user Kusadasi-Guy
  • 43. Print = ppiSize: 600 x 375 pxResolution: 300 ppiPrint size: 2” x 1.3”Photo by Flickr user Kusadasi-Guy
  • 44. 72 ppi (pixels)300 ppi (inches)
  • 45. Rastervs.Vector
  • 46. Raster
  • 47. Vector
  • 48. Inkscape
  • 49. Flickr: Andrew Abogado Flickr: sietecoyote Flickr: Ref3atovFlickr: Karminqui Flickr: Keith Henn Flickr: HJ Media StudiosFlickr: pasukaru76 Flickr: pvouvitu Muslih zarthKeng SusumpowPeter A. Shevtsov
  • 50. Time for a recap
  • 51. Text, line art, transparencyPhotographs.jpg.png(.tiff optional)
  • 52. On screen72 ppi
  • 53. Print documents300 ppi
  • 54. Try it out!Learn more at tmjbeary.comwww.gimp.orgDon’t have Gimp?