Research Article
LoCoBoard: Low-Cost Interactive Whiteboard Using Computer Vision Algorithms
Algorithm 1
Pseudo code Algorithm A1.
| function ALGORITHM image_height, image_width, image, threshold return coordinates of the PL | | centroid | | inputs: image_height, height of the image | | image_width, width of the image | | image, captured grayscale image | | threshold, lower limit of brightness to identify pixels belonging to PL blob | | size 0 | | colValue 0 | | rowValue 0 | | row 0 | | row image_height | | column 0 | | while columnimage_width | | if [row][column] threshold then | | colValue colValue column | | rowValue rowValue row | | size size 1 | | column column 1 | | row row 1 | | colValue colValue/size | | rowValue rowValue/size | | return rowValue, colValue) |
|
