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This paper presents a novel approach for real-time photo style transfer. The automatic image manipulation technique is performed in the oRGB color space, which is a new color model based on the psychologically opponent color theory. We transfer color from an appropriate source image to the target image using a simple statistical analysis. In addition, we match the global luminance histogram to achieve better photographic look. Note that the whole pipeline is highly parallel, enabling a GPU-based real-time implementation. Several experimental results are shown to demonstrate the effectiveness and efficiency of the proposed method.