Violet narrowband light Vn and green narrowband light Gn produced by a light source device are supplied to a complementary color type endoscope, and simultaneously applied to an observation object. In a complementary color type imaging device, first mixed pixels and second mixed pixels, which sense both of the violet narrowband light Vn and the green narrowband light Gn, are read out. The light amount ratio Z of the violet narrowband light Vn to the green narrowband light Gn is set in such a range as to make the light amount of the violet narrowband light Vn larger than the light amount of the green narrowband light Gn, and make a signal value of the second mixed pixel higher than a signal value of the first mixed pixel.

An interactive memorial system includes a gravestone having a front side. A processor is mounted within the gravestone and an electronic memory is in communication with the processor. The electronic memory stores a plurality of video files. A display is mounted on the gravestone and faces away from the front side. The display is electrically coupled to the processor and the display displays the video files when the processor accesses selected ones of the video files from the electronic memory. An input assembly is electrically coupled to the processor and is mounted on the gravestone. The input assembly receives one of a plurality of codes. The processor accesses one of the video files associated with one of the codes.

According to various embodiments, an image processing device may be provided. The image processing device may include: an input circuit configured to receive input image data including pixels related to varying exposure times; a selecting circuit configured to select a reference image from the input images; a weighting determination circuit configured to determine at least one weighting for each pixel of the input image data based on the selected reference image; an output image determination circuit configured to determine an output image based the determined weightings; and an output circuit configured to output the output image.

According to various embodiments, an image processing device may be provided. The image processing device may include: an input circuit configured to receive input image data including pixels related to varying exposure times; a selecting circuit configured to select a reference image from the input images; a weighting determination circuit configured to determine at least one weighting for each pixel of the input image data based on the selected reference image; an output image determination circuit configured to determine an output image based the determined weightings; and an output circuit configured to output the output image.

Provided is a display apparatus and method. The display apparatus may sense light reflected from an object and passed through a display panel, and may control a power of a backlight unit depending on whether the light has passed through the display panel.