ok you pressed the magic button you previewed image on screen...
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© Riccardo M. Flask B.Ed.(Hons.), Dip.C.S.Ed., M.I.T. 2008/9
...ok... you pressed the ...ok... you pressed the
magic button... you magic button... you
previewed image on previewed image on
screen... now what?screen... now what?
© Riccardo M. Flask B.Ed.(Hons.), Dip.C.S.Ed., M.I.T. 2008/9
There are millions of There are millions of
gremlins, called pixels, gremlins, called pixels,
who try to remember your who try to remember your
picture data... until you picture data... until you
connect your camera to connect your camera to
your computer...your computer...
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© Riccardo M. Flask B.Ed.(Hons.), Dip.C.S.Ed., M.I.T. 2008/9
File formatsFile formats
••JPEG (joint photographic JPEG (joint photographic
expert group)expert group)
••TIFF (tagged image file TIFF (tagged image file
format)format)
••RAW(literally!)RAW(literally!)
© Riccardo M. Flask B.Ed.(Hons.), Dip.C.S.Ed., M.I.T. 2008/9
JPEGJPEG••Compresses information (detail Compresses information (detail
more (less compression) than colour)more (less compression) than colour)
••Sorts detail into coarse and fine, Sorts detail into coarse and fine,
discards finediscards fine
••Various algorithms used to get a Various algorithms used to get a
decently sized filedecently sized file
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© Riccardo M. Flask B.Ed.(Hons.), Dip.C.S.Ed., M.I.T. 2008/9
JPEG...more ;)JPEG...more ;)••Most common digital formatMost common digital format
••Suitable for webSuitable for web
••Quality lost each time it is saved Quality lost each time it is saved
due to recompressiondue to recompression
••Known as LOSSY compressionKnown as LOSSY compression
••File size small (RGB)File size small (RGB)
© Riccardo M. Flask B.Ed.(Hons.), Dip.C.S.Ed., M.I.T. 2008/9
25Kb25Kb 28Kb28Kb
30Kb30Kb 48Kb48Kb
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© Riccardo M. Flask B.Ed.(Hons.), Dip.C.S.Ed., M.I.T. 2008/9
TIFFTIFF••Lossless compressionLossless compression
••Highly compatible with photo Highly compatible with photo
editing software on multiediting software on multi--platformsplatforms
••Used in printing and publishing Used in printing and publishing
(CMYK) (CMYK)
••Larger file sizes (i.e. Less photos can Larger file sizes (i.e. Less photos can
be taken)be taken)
© Riccardo M. Flask B.Ed.(Hons.), Dip.C.S.Ed., M.I.T. 2008/9
RAW (RAW (nejjanejja bilbil--maltimalti))••Original... Unprocessed informationOriginal... Unprocessed information
••Directly from sensor (CCD/CMOS)Directly from sensor (CCD/CMOS)
••Processed via special softwareProcessed via special software
••Preserves colour depth and qualityPreserves colour depth and quality
••File size less than or equal to TIFFFile size less than or equal to TIFF
••Can be compressed(nearly lossless)Can be compressed(nearly lossless)
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© Riccardo M. Flask B.Ed.(Hons.), Dip.C.S.Ed., M.I.T. 2008/9
Image FormatImage Format Typical File Size in MBTypical File Size in MB CommentComment
UncompressedUncompressed TIFFTIFF 14.114.1 3 channels of 8 bits3 channels of 8 bits
Uncompressed 12Uncompressed 12--bitbit RAWRAW 7.77.7 1 channel of 12 bits1 channel of 12 bits
CompressedCompressed TIFFTIFF 6.06.0 Lossless compressionLossless compression
Compressed 12Compressed 12--bitbit RAWRAW 4.34.3 Nearly lossless compressionNearly lossless compression
100% Quality100% Quality JPEGJPEG 2.32.3 Hard to distinguish from uncompressedHard to distinguish from uncompressed
80% Quality80% Quality JPEGJPEG 1.31.3 Sufficient quality for 4" x 6" printsSufficient quality for 4" x 6" prints
60% Quality60% Quality JPEGJPEG 0.70.7 Sufficient quality for websites *Sufficient quality for websites *
20% Quality20% Quality JPEGJPEG 0.20.2 Very low image qualityVery low image quality
© Riccardo M. Flask B.Ed.(Hons.), Dip.C.S.Ed., M.I.T. 2008/9
Editing Pictures (basic)Editing Pictures (basic)
••CropCrop
••ResizeResize
••Brightness/ContrastBrightness/Contrast
••RecolorRecolor
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© Riccardo M. Flask B.Ed.(Hons.), Dip.C.S.Ed., M.I.T. 2008/9
Crop/ResizeCrop/Resize
© Riccardo M. Flask B.Ed.(Hons.), Dip.C.S.Ed., M.I.T. 2008/9
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© Riccardo M. Flask B.Ed.(Hons.), Dip.C.S.Ed., M.I.T. 2008/9
Brightness/ContrastBrightness/Contrast
© Riccardo M. Flask B.Ed.(Hons.), Dip.C.S.Ed., M.I.T. 2008/9
RecolorRecolor
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© Riccardo M. Flask B.Ed.(Hons.), Dip.C.S.Ed., M.I.T. 2008/9
© Riccardo M. Flask B.Ed.(Hons.), Dip.C.S.Ed., M.I.T. 2008/9
Advanced Editing (wow!)Advanced Editing (wow!)
••Picasa (by Google)Picasa (by Google)
••PicnicPicnic
••GimpGimp
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© Riccardo M. Flask B.Ed.(Hons.), Dip.C.S.Ed., M.I.T. 2008/9
PicasaPicasa
••Freely downloadable... Freely downloadable...
and by freely I mean it’s and by freely I mean it’s
FREEFREE
••Need Google a/c only for Need Google a/c only for
Web albumsWeb albums
© Riccardo M. Flask B.Ed.(Hons.), Dip.C.S.Ed., M.I.T. 2008/9
PicnicPicnic
••FREE! (ok no longer FREE! (ok no longer
exciting now)exciting now)
••Need account as webNeed account as web--
based based ��
••Link to Link to FlickrFlickr
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© Riccardo M. Flask B.Ed.(Hons.), Dip.C.S.Ed., M.I.T. 2008/9
GIMPGIMP
••Guess... It’s free... Guess... It’s free... UffUff
••No accountsNo accounts
••PhotoshopPhotoshop--likelike
••Not for beginnersNot for beginners
© Riccardo M. Flask B.Ed.(Hons.), Dip.C.S.Ed., M.I.T. 2008/9
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© Riccardo M. Flask B.Ed.(Hons.), Dip.C.S.Ed., M.I.T. 2008/9
© Riccardo M. Flask B.Ed.(Hons.), Dip.C.S.Ed., M.I.T. 2008/9
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© Riccardo M. Flask B.Ed.(Hons.), Dip.C.S.Ed., M.I.T. 2008/9
© Riccardo M. Flask B.Ed.(Hons.), Dip.C.S.Ed., M.I.T. 2008/9
Web albumsWeb albums
••Share your pictures!Share your pictures!
••Family all over the worldFamily all over the world
••DisplayDisplay
••Data Protection Data Protection
Act/Consent formsAct/Consent forms