Differences
This shows you the differences between two versions of the page.
| Both sides previous revision Previous revision Next revision | Previous revision | ||
| p5js-webcam1 [2024/08/20 23:38] – renick | p5js-webcam1 [2024/08/22 00:01] (current) – renick | ||
|---|---|---|---|
| Line 54: | Line 54: | ||
| ===== more on the webcam ===== | ===== more on the webcam ===== | ||
| - | This set of videos by Jeff Thompson shows a nice trick for getting a performant grid of x/y values and using the red value for that pixel as a measure of brightness and mapping that to the size of a circle to be drawn at that point | + | This set of videos by Jeff Thompson |
| - https:// | - https:// | ||
| Line 61: | Line 61: | ||
| His code is at this link: https:// | His code is at this link: https:// | ||
| + | He explains how to get a particular pixel value in these videos: | ||
| + | - (basics) https:// | ||
| + | - (more performant by reading the flat pixel array) https:// | ||
| + | |||
| + | Here's a useful example from Kokyoong Lim for some simple motion detection: | ||
| + | |||
| + | - https:// | ||