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.

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Image editing for beginners (Gimp) Image editing for beginners (Gimp) Presentation Transcript

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