| 摘要 |
An image generating method and apparatus for high-efficiency recording or displaying of a thumb-nail image or an image converted in resolution. The image display apparatus includes an image inputting unit 1 for inputting an image, an image signal pre-processing unit 2 for pre-processing the input image to generate a digitized image, a band image splitting unit 2 for pre-processing the input image to generate a digitized image, a band image splitting unit 20 for splitting the frequency spectrum of the digitized image data into one or more bands to produce band-based band images, a band image encoding unit 30 for converting the band image into encoded data, a band image decoding unit 40 for decoding the encoded data to obtain band images, and a band image synthesis unit 50 for synthesizing the band images to produce a band-synthesized image. The image display apparatus also includes an image memory 5 for storing an intermediate image obtained from the band images and a display controller 3 for displaying the band images in a controller fashion on a display unit. The image display apparatus also has a controller 4 for controlling the entire system.
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