1. A method implementable on a computing device for determining color characteristics of an image, the method comprising: identifying one or more regions in the image based on a luminance value associated with pixels in the image, wherein each region comprises a set of pixels having a predefined range of luminance values; categorizing the set of pixels associated with the one or more regions in one or more predefined color categories corresponding to the each of the one or more regions based, at least in part, on a chroma value associated with each pixel in the set of pixels; and determining the color characteristics of the image based on a count of the categorized pixels in each of the one or more predefined color categories.