The number of pixels in an image can be calculated by multiplying pixel columns by pixel rows. The resolution of the image is described with the set of two positive integer numbers, where the first number is the number of pixel columns (width) and the second is the number of pixel rows (height), for example as 7680 by 6876. Another popular convention is to cite resolution in megapixels as the total number of pixels in the image and dividing by one million.