hi, this may be a very simple matter, but i have conflict with that. I have split a particular binary image(28 x 28) into (4 x 4) samples. Now i want to calculate the pixel densities of each sample(i use those density values as features in a OCR application). As i know density defines the number of pixels in a particular area, like 7 pixels per square inch. Is that the same in here? all of my samples have 4 pixels. Is there are relationship between Moment->m00 and pixel density ? can someone explain this ? plz help