Semantic color constancy

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2021-2-12

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Üstün, İhsan Emre

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Color constancy aims to perceive the actual color of an object, disregarding the effectof the light source. Recent works showed that utilizing the semantic information inan image enhances the performance of the computational color constancy methods.Considering the recent success of the segmentation methods and the increased numberof labeled images, we propose a color constancy method that combines individualilluminant estimations of detected objects which are computed using the classes of theobjects and their associated colors. Then we introduce a weighting system that valuesthe applicability of the object classes to the color constancy problem. Lastly, weintroduce another metric expressing the detected object and how well it fits the learnedmodel of its class. Finally, we evaluate our proposed method on a popular colorconstancy dataset, confirming that each weight addition enhances the performanceof the global illuminant estimation. Experimental results show promising results,outperforming the conventional methods while competing with the state of the artmethods.

Subject Keywords

Color Constancy, Object Recognition, Color Space

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https://hdl.handle.net/11511/89773

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Graduate School of Natural and Applied Sciences, Thesis

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Citation Formats

İ. E. Üstün, “Semantic color constancy,” M.S. - Master of Science, Middle East Technical University, 2021.