Frans-Jan Wind

I've gathered this patch by numerous ideas on this forum, but now i'm stuck. The idea is to obtain movement in a grid through using a map stored in a matrix. It seems to work but the regions don't add up as expected. The most left column (of a 6x3 grid) is ignored. Other regions light up while most change is in a different region. I've tried to convert the stream to longs, but result where even more strange. I'd appreciate any hint for solving what seems so close. For testing I provided a movie which can be loaded in this patch for testing purposes 

I've gathered this patch by numerous ideas on this forum, but now i'm stuck. The idea is to obtain movement in a grid through using a map stored in a matrix. It seems to work but the regions don't add up as expected. The most left column (of a 6x3 grid) is ignored. Other regions light up while most change is in a different region. I've tried to convert the stream to longs, but result where even more strange. I'd appreciate any hint for solving what seems so close. For testing I provided a movie which can be loaded in this patch for testing purposes http://www.yourule.nl/cycling/hand.mov (9.7Mb Right click to download)

detect-regions-through-matrix-map

This has to do with the way the matrix is scaled down.

jit.matrix doesn't scale the way you would expect it to (it's not entirely accurate in the ways one would expect : 

https://cycling74.com/forums/down-size-problem

 ). the easiest way would be to drop in something like cv.jit.resize scaled to your desired size.

This has to do with the way the matrix is scaled down. 

jit.matrix doesn't scale the way you would expect it to (it's not entirely accurate in the ways one would expect : https://cycling74.com/forums/down-size-problem ). the easiest way would be to drop in something like cv.jit.resize scaled to your desired size.


[cv.jit.resize] did the trick. The link to the forum post learned me a lot about the workings of matrix. And thank Mr. Pelletier for his outstanding computer vision lib!

Thank you!
[cv.jit.resize] did the trick. The link to the forum post learned me a lot about the workings of matrix. And thank Mr. Pelletier for his outstanding computer vision lib!

detect regions through matrix map