IMAGE ENCODING DEVICE, IMAGE PROCESSING DEVICE, IMAGE DISPLAY DEVICE, IMAGE ENCODING METHOD, AND IMAGE PROCESSING METHOD

摘要

An image encoding device includes: a dynamic range generation unit for outputting dynamic range data Dd1 of block image data Dc1; an average value generation unit for outputting an average value data De1 of the block image data Dc1; a pixel quantity decreasing unit (20) for decreasing the number of pixels in the block image data so as to generate pixel quantity-decreased block image data Dc1'; an encoded parameter generation unit (18) for generating an encoded parameter pa1 specifying the quantized bit quantity and the decreased pixel quantity according to the dynamic range data Dd1; a quantized threshold value generation unit (19) for generating a quantization threshold value tb1; and an image data quantization unit (21) for generating quantized image data Df1 from the pixel quantity-decreased block image data Dc1' by using the quantization threshold value tb1.