IMAGE3D

Look at these pictures

What’s the difference?• 2D – x(width) and Y (height) axis• 3D – x(width) and Y (height) axis

AND Z (depth)

How we do 3D model• Using 3D applications• Start with a shape• Define the shape and create • Finally -> RENDERING!!!

Colors and palettes

Colors frequency of light wave of electromagnetics spectrum - human eyes response

PalettesCommon Palettes

• 1 – bit (dwicolor)• 4 – bit (16 color)• 8 – bit (256 color)• 16 – bit (Thousands

colors)• 24 – bit (millions colors)

Higher bit = rich color 256-colors, VGA, 8 bit

Dithering…Color value pixel define to the closest matching color

Example:Scanned image …24-bit scanned image (millions colours) to 8-bit (computer)

File formatApple – PICT (Mac users)Windows – BMP (DIBs – device

independent bitmap)TIFF – desktop publishingDXF & IGF – drawn object (autoCAD)JPEG & GIF – most commonly use

The end