1. A method, performed by one or more hardware processors, comprising: receiving an image; determining a light intensity of the image; converting a color space of each pixel in the image into a converted value based on the light intensity; selecting a classifier from a plurality of classifiers based on the light intensity; determining for each converted value, using the selected classifier, a probability that the converted value represents a skin tone; and detecting presence of skin tone in the image based on the determined pixel probabilities.