hello  

i'd like to be able to calculate the 'mean brightest point' in a line of pixels. It's for a primitive 3D scanner.


right now i'm using a pretty basic algorithm. for each horizontal line of pixels in an image, i simply step through the pixels and if the current pixel is brighter than the one before, the brightest point of that line will be set to the current pixel. This of course gives very jittery results throughout the image(s).

i'd like to get kind of the 'average center of the brightness' instead, if that makes sense.



only i don't know where to start with the math…
has to be a common thing, i'm simply lacking the right words for a google search  

yes, basically the center of a blob is what i needed, though i thought it'd be overkill to use something like openCV for this, i only had to do one-dimensional lines. Found a simple and sufficient solution using intensity-weighted average:

Code:

0  0  0  0  1  3  2  3  1  0  0  0  0  0
1  2  3  4  5  6  7  8  9 10 11 12 13 14

(1*5+3*6+2*7+3*8+1*9)/(1+3+2+3+1) = 7