1. A method to facilitate scene segmentation of focal stack images, the method comprising: receiving a set of focal stack images, wherein a focal stack image comprises a plurality of pixels; grouping each of the plurality of pixels to which an over segmentation algorithm or a decimation algorithm is applied based on a shape of the plurality of pixels to create a plurality of super pixels; calculating a focal measure for each of the plurality of the super pixels; segmenting a respective focal stack image based on the focal measures of the plurality of super pixels; calculating a color probability for respective super pixels; and segmenting the respective focal stack image based on the color probability of respective super pixels.