I am having problem figuring out how to convert pixel unit to mm. For my experiment, I take pictures of fungal colony plates using a digital camera at 5 megapix. Then, I load the images into CellProfiler to analyze the morphology of the culture. I am really obtuse at figuring out stuff like this, but I wonder if it’s possible to convert pixel to mm directly, as in, 1 megapixel = 0.264 mm, or is there a certain procedure that I need to go through to work out the conversion constant?
Also, maybe I should create a new topic for this, but I was just wondering, is there a way to measure fungal colony density using CellProfiler?
Anyway, thanks for inventing this awesome software and keeping it free!