A motion detection library written in Go.
import "github.com/mmaelzer/camotion"
func Blended(img1, img2 image.Image, threshold int) image.ImageBlended eturns a black and white image where white pixels denote a change between the two images that is greater than the given threshold
func Motion(img1, img2 image.Image, minChange, threshold int) boolMotion will determine if motion occurs between two images given a minChange value which is a 1-100 value representing percentage of image changed and a threshold value which sets a below this value is noise. A reasonable threshold default for jpegs (and potentially other formats) is 2500.
func MotionWithStep(img1, img2 image.Image, minChange, threshold, step int) boolMotionWithStep will call Motion() with a step value that determines how many pixels to skip between comparisons. By default, Motion has step of 1, which means that every pixel will be analyzed to determine if motion is detected. Adding a step value provides a way to dial down processing requirements in a linear fashion to reduce the CPU burden of motion detection at the cost of precision.