According to one embodiment, an electronic apparatus includes a video output module, a receiving module, and an image quality adjusting module. The video output module is configured to output 2D video and 3D video selectively. The receiving module is configured to receive a wearing state signal indicating whether or not a user wears shutter glasses. The image quality adjusting module is configured to determine a first image quality adjustment amount when the video output module outputs the 2D video and the wearing state signal indicates that the user wears the shutter glasses, and to determine a second image quality adjustment amount when the video output module outputs the 2D video and the wearing state signal indicates that the user does not wear the shutter glasses. The second image quality adjustment amount is different from the first image quality adjustment amount.