According to one embodiment, a video processing apparatus includes a histogram generator, a determination module and a sharpening processor. The histogram generator generates a histogram based on a luminance level of pixels of a video signal. The determination module determines whether the video signal is a captured video based on the histogram. The sharpening processor sharpens the video signal based on an imaging model function in which a blur due to imaging is not considered, if the video signal is not the captured video.