03raster 1

Raster Graphics 고려대학교 컴퓨터 그래픽스 연구실

Contents ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Bresenham’s Line Algorithm ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],x k y k x k +1 y k +1

Bresenham’s Algorithm(cont.) ,[object Object],[object Object],[object Object],[object Object],d 1 – d 2 < 0  ( x k +1, y k ) d 1 – d 2 > 0  ( x k +1, y k +1) d 1 d 2 x k y k x k +1 y k +1

Bresenham’s Algorithm(cont.) ,[object Object],[object Object],[object Object]

Bresenham’s Algorithm(cont.) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Polygons ,[object Object],[object Object],[object Object],[object Object],1 2 3 4 5 6 7 8 9 1 2 3 4 6 7 8 9 10 11 5

Scan-Line Polygon Fill ,[object Object],[object Object],[object Object],y y’ 1 2 1 1 2

Scan-Line Polygon Fill (cont.) ,[object Object],C C’ B D E A 0 1 y A y D y C Scan-Line Number y E x A 1/m AE y B x A 1/m AB y C’ x D 1/m DC y E x D 1/m DE y B x C 1/m CB

Inside-Outside Tests ,[object Object],[object Object],[object Object],exterior interior

Boundary-Fill Algorithm ,[object Object],[object Object],[object Object]

Antialiasing ,[object Object],[object Object],[object Object],[object Object],original sample reconstruct

Antialiasing (cont.) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Supersampling ,[object Object],[object Object],10 11 12 20 21 22 (10, 20): Maximum Intensity (11, 21): Next Highest Intensity (11, 20): Lowest Intensity

Pixel-Weighting Masks ,[object Object],1 2 1 2 4 2 1 2 1

Area Sampling ,[object Object],[object Object],10 11 12 20 21 22 (10, 20): 90% (10, 21): 15%

Filtering Techniques ,[object Object],Box Filter Cone Filter Gaussian Filter

Electromagnetic Spectrum ,[object Object],[object Object],[object Object]

Visible Light ,[object Object],[object Object],[object Object],[object Object],White Light Orange Light

Color Perception ,[object Object],[object Object]

Color Models ,[object Object],[object Object],[object Object],[object Object],[object Object]

RGB Color Model ,[object Object],R G B Color 0.0 0.0 0.0 Black 1.0 0.0 0.0 Red 0.0 1.0 0.0 Green 1.0 1.0 0.0 Yellow 1.0 0.0 1.0 Magenta 0.0 1.0 1.0 Cyan 1.0 1.0 1.0 White 0.0 0.0 1.0 Blue

RGB Spectral Colors ,[object Object]

XYZ Color Model (CIE) ,[object Object]

CIE Chromaticity Diagram ,[object Object],(white)

CIE Chromaticity Diagram Define Color Gamuts Represent Complementary Color Determine Dominant Wavelength and Purity

RGB C o lor Gamut ,[object Object],(red) (green) (blue)

CMY Color Model ,[object Object],C M Y Color 0.0 0.0 0.0 White 1.0 0.0 0.0 Cyan 0.0 1.0 0.0 Magenta 1.0 1.0 0.0 Blue 1.0 0.0 1.0 Green 0.0 1.0 1.0 Red 1.0 1.0 1.0 Black 0.0 0.0 1.0 Yellow

HSV Color Model ,[object Object]

HSV Color Model H S V Color 0 1.0 1.0 Red 60 1.0 1.0 Yellow 120 1.0 1.0 Green 240 1.0 1.0 Blue 300 1.0 1.0 Magenta * 0.0 1.0 White * 0.0 0.5 Gray 180 1.0 1.0 Cyan * * 0.0 Black

03raster 1

Recommended

Recommended

More Related Content

What's hot

What's hot (20)

Viewers also liked

Viewers also liked (7)

Similar to 03raster 1

Similar to 03raster 1 (20)

More from Ketan Jani

More from Ketan Jani (10)

03raster 1