Mobile Image Retargeting

publication
VMV 2013
authors
Daniel Graf, Daniele Panozzo, Olga Sorkine-Hornung

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With our touch-based user interface for image retargeting, users can paint the saliency map and observe the retargeted image in real time.

abstract

We propose an algorithm for axis-aligned content-aware image retargeting that is specifically optimized for mobile devices, and we show that interactive image retargeting is possible even with a low-power, mobile CPU. Our retargeting operator is based on non-uniform scaling and cropping and produces results that are on par with state-of-the-art on a large collection of images. Taking the limited screen space of mobile devices into account, we design a novel user interface that allows painting the saliency map directly onto the retargeted image while the system is continuously recomputing the retargeted result at interactive rates. Finally, we apply our algorithm in a picture gallery application to greatly improve the screen space utilization in mobile device settings.

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