Final Exam Flashcards
Photoshopped
picture digitally manipulated
Bitmapped Images
Raster Images (made of blocks)
Vector Images
Scalable Images (resolution is independent)
Changing image dimensions
Images -> size -> peel dimension AND document size
Downsampling
use of decimation (averaging the values) to scale down by eliminating pixels
Upsampling
use of interpolation (manufactures new pixels) to scale up by adding pixels
6 Interpolation options
- Nearest Neighbour
- Bilinear
- Bicubic
- Bicubic Smoother
- Bicubic Sharper (decimation)
- Bicubic Automatic
What is Nearest Neighbour
takes pixel colour and assigns the same colour to new pixels that are created (basic, fastest, poor quality)
What is Bilinear
Averages colour of 4 pixels
What is Bicubic
Averages colour of 16 pixels around it
What is Bicubic Smoother
great for UPSAMPLING
What is Bicubic Sharper
great for DOWNSAMPLING
What is Bicubic Automatic
Default
How do you calculate printing size
Image Size (px) / Resolution (ppi)
Camera required for printing
300ppi and 10Mega Pixels