## Mean of total values of a matrix' plane without the 0 value pixels

Nov 05 2013 | 2:07 pm
Hi folks,
Any idea how I can find out the mean of all the values of a plane from a matrix? Except for the 0 value which would ruin the whole calculations, of course.
Thank you for looking into this, ygr

• Nov 05 2013 | 2:23 pm
jit.3m
• Nov 05 2013 | 2:28 pm
First thing is figuring out a way to get the pixels with 0 value out of the calculations.
And then calculate the mean from what remains.
By the way, I know about [jit.3m] mean value but the thing with the 0's still remain
• Nov 05 2013 | 2:29 pm
Thank you, Tobias. I just read your message. Still trying to figure out how to exclude the 0's from the whole configuration.
• Nov 05 2013 | 6:08 pm
jit.iter can help here. Steps: Calculate the number of non-black pixel occurrences Calculate the sum of all the pixels in the image (black is 0 so you don't need to filter it). Divide it by the number of non-black pixels.
This way you get a higher average, since you're not counting the black pixels...
• Nov 05 2013 | 8:35 pm
Oh, my god!
You are a genius! Thank you so much!!