Quote Originally Posted by Redrobes View Post
In theory it should be right or somewhat close. All I can suggest is that a micro meter is 10^-6 not 10^-3 which is millimeters. So if you were a 1000 or a 1000000 out in area then that could be the case. Otherwise I am not sure.
Thx again ;-) So i resolve in part my problem of area assessment :-) But I have an other question :
How to select a range of pixels (threshold) we are interesting in , in a specific area , whitout to select the all pixel from the picture,
Now I need to assess the area of Pixel from a certain range of gray ....
If you have an idea or severals You can submit to me .
Merci