1. A method to detect an object in an image, the method comprising: segmenting the image into sets of subregions, different sets having at least one of different subregion sizes or different subregion offsets relative to one another; determining a first comparison metric quantifying comparison of a first subregion with the object based on differences between bin values of a second color histogram corresponding to the object and adjusted bin values of a first color histogram corresponding to the first subregion; determining a second comparison metric quantifying comparison of a second subregion with the object; and comparing the first and second comparison metrics with a threshold to identify at least one of the subregions as being associated with a possible location of the object in the image.