mirjana devetakovic, m.sc. caad - images beograd, 2011
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Mirjana Devetakovic, Mirjana Devetakovic, M.Sc.M.Sc.
CAAD - ImagesCAAD - Images
Beograd, 2011.Beograd, 2011.
Belgrade, 20Belgrade, 201111
CAAD – Digital ImagesCAAD – Digital Images
A picture is worth a thousand words
A picture is worth a thousand words is a familiar proverb that refers to the idea that complex stories can be told with just a single still image, or that an image may be more influential than a substantial amount of text. It also aptly characterizes the goals of information visualization where large amounts of data must be absorbed quickly.
Belgrade, 20Belgrade, 201111
CAAD – Digital ImagesCAAD – Digital Images
““Imaginaire scientifique”Imaginaire scientifique”
Belgrade, 20Belgrade, 201111
CAAD – Digital ImagesCAAD – Digital Images
Pixel and VoxelPixel and Voxel
■ Pixel – Picture ElementPixel – Picture Element
■ Voxel – Volume ElementVoxel – Volume Element
Belgrade, 20Belgrade, 201111
CAAD – Digital ImagesCAAD – Digital Images
ResolutionResolution
■ Low-resolution imagesLow-resolution images
■ High-resolution imagesHigh-resolution images
Belgrade, 20Belgrade, 201111
CAAD – Digital ImagesCAAD – Digital Images
CompressionCompression
■ RLE (Run-Length Encoding)RLE (Run-Length Encoding)
■ Quadtree encodingQuadtree encoding
Belgrade, 20Belgrade, 201111
CAAD – Digital ImagesCAAD – Digital Images
Color – RGB vs. CMYKColor – RGB vs. CMYK
http://www.sketchpad.net/
Belgrade, 20Belgrade, 201111
CAAD – Digital ImagesCAAD – Digital Images
Color – RGB ModelColor – RGB Model
http://www.couleur.org
Belgrade, 20Belgrade, 201111
CAAD – Digital ImagesCAAD – Digital Images
Color – CMYK ModelColor – CMYK Model(Cyan, Magenta, Yellow + blacK)(Cyan, Magenta, Yellow + blacK)
Belgrade, 20Belgrade, 201111
CAAD – Digital ImagesCAAD – Digital Images
Color – HSL Model Color – HSL Model (Hue, Saturation, Lightness)(Hue, Saturation, Lightness)
Belgrade, 20Belgrade, 201111
CAAD – Digital ImagesCAAD – Digital Images
PalettePalette
Belgrade, 20Belgrade, 201111
CAAD – Digital ImagesCAAD – Digital Images
Image FormatsImage Formats
■ BMP – (Bit Map, no compression)BMP – (Bit Map, no compression)
■ GIF – (Graphic Interchange Format, Web based, 255 colors, GIF – (Graphic Interchange Format, Web based, 255 colors, supporting animated sequences)supporting animated sequences)
■ TIFF – (Tagged Image File Format, printing)TIFF – (Tagged Image File Format, printing)
■ JPG (JPEG) – (Joint Photographic Experts Group, photos JPG (JPEG) – (Joint Photographic Experts Group, photos and continuous tone images, compression settings)and continuous tone images, compression settings)
■ PNG – (Portable Network Graphics)PNG – (Portable Network Graphics)
Belgrade, 20Belgrade, 201111
CAAD – Digital ImagesCAAD – Digital Images
Image ProcessingImage Processing
■ ResizeResize
■ CropCrop
■ Contrast / BrightnessContrast / Brightness
■ Hue / Saturation / LightnessHue / Saturation / Lightness
Belgrade, 20Belgrade, 201111
CAAD – Digital ImagesCAAD – Digital Images
Image ProcessingImage Processing
■ Contrast / BrightnessContrast / Brightness
Belgrade, 20Belgrade, 201111
CAAD – Digital ImagesCAAD – Digital Images
Color – Color – Hue, Saturation, LightnessHue, Saturation, Lightness