parallel processing of an image and its corresponding thumbnail

摘要

An image processing device creates JPEG compressed image data from an uncompressed still input image. A number of pixels of the input image is converted to a predetermined number of pixels of a reduced image to be obtained by reducing the input image in size. The uncompressed image data of the input image and reduced image data of the reduced image are JPEG-compressed to output JFEG-compressed image data of the input image and the reduced image.