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https://www.realtimerendering.com/blog/the-center-of-the-pixel-is-0-50-5/ https://www.realtimerendering.com/blog/the-center-of-the-pix...
by DougBTX 5y ago
https://www.realtimerendering.com/blog/the-center-of-the-pixel-is-0-50-5/ https://www.realtimerendering.com/blog/the-center-of-the-pix...
- Joker_vD 5y agoHuh. I thought it was obvious: e.g., the top-left corner of the screen is (0, 0), the bottom-right corner is (640, 480), and pixels are 1x1 — we take the coordinate of their top-left corner to be their coordinate, so the top-left pixel has coordinates (0, 0), and the bottom-right one has (639, 479), and obviously the coordinates of their centres are (0.5, 0.5) and (639.5, 479.5). But apparently some people treated pixels as geometrical points without size?
- foxfluff 5y agoIt's normal in signal processing to treat samples (whether audio or image) as points. A lot of things stop making sense if you replace them with line segments and rectangles.