An apparatus for carrying out translucent-processing to still and moving pictures, includes (a) a judgment unit which judges whether a picture to be displayed is a still or moving picture, (b) a memory which stores first data about first and second pictures to be processed, and second data indicative of a ratio at which pixels of the first and second pictures are blended, (c) a still picture processor which blends color-relating values of the pixels in a portion at which the first and second pictures overlap each other, at the ratio, for producing third data relating to a translucent picture, and stores the thus produced third data in the memory, and (d) a moving picture processor which blends color-relating values of the pixels in a portion at which the first and second pictures overlap each other, at the ratio, for producing fourth data relating to a translucent picture.