On Feb 22, 2:39*am, reza wrote:
On Feb 21, 12:30*pm, Johnnyboy5 wrote:





Pixels

Hi *I know this is nothing to do with Excel but I also know there are
a lot of intelligent people out there.

My daughter has a uni project and she needs to count the number of
changes in a cancer cell slide *- before and after treatment. * There
a 20 before and after slides in all.

Basically the treated cells turn different shades of brown and she
needs to count the number of cells that changed colour (shades of
brown)

Note there are a lot of pixels ! per slide.

Help – point me to a group etc that can help her or maybe one of you
Excel experts know how to...

Johnnyboy

Are all the slides of exactly the same area? In other words, can you
stack the slides and produce a time-laps of cells?

Is each cell exactly a pixel or can it be a group of pixels? Do the
cells need to be "detected" in the image?

Are the slides taken using the same lighting condition or do they need
to be adjusted in some way before colour changes are detected?

/reza- Hide quoted text -

- Show quoted text -

Only in pairs - before after - different pairs
A group of pixels - no they dont need to be detected - just counted
+/- a few
No the pairs can be in different lighting / cameras etc. No
adjustements needed - they are just before and after - and its quite
clear what areas have turned to shades of brown on the 2nd slide
(cells which reacted to treatment)

thanks

Johnnyboy