T-61.271 Information visualization
Exercise 2. Thu 16.10.2003:12-14 T4
- Basic visual percption
- Color perception and visualization
- Aliasing and antialiasing. Show an example of aliasing effect and
how it can be detrimental to visualizations. How can this be corrected
with antialiasing? List and discuss the properties of a perfect 2D
computer display (flat display that could not be made to look any
better by adding more resolution or refresh frequency or color
resolution etc.). Hint: Ware p. 66 onwards, and chapter 4.q
- Create an image that shows a strong color contrast effect.
( The same color looks different when it is surrounded by different colors ).
- Plot the gamut of a color foto/image in CIELab space. You can convert RGB values to XYZ with the following equation.
The white point to be used in the CIELab formulas is D65:
, and .