Automatic content-aware non-photorealistic rendering of images

Non-photorealistic rendering techniques work on image features and often manipulate a set of characteristics such as edges and texture to achieve a desired depiction of the scene. Most computational photography methods decompose an image using edge preserving filters and work on the resulting base and detail layers independently to achieve desired visual effects. We propose a new approach for contentaware non-photorealistic rendering of images where we manipulate the visually salient and non-salient regions separately. We propose a novel content-aware framework in order to render an image for applications such as detail exaggeration, artificial smoothing, and image abstraction. The processed regions of the image are blended seamlessly with the rest of the image for all these applications. We demonstrate that content awareness of the proposed method leads to automatic generation of nonphotorealistic rendering of the same image for the different applications mentioned above.