RESOLUTION CONVERSION UPON HIERARCHICAL CODING AND DECODING
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Abstract
In a decoding method of decoding encoded image data which has been hierarchically encoded in advance, a size of an image to be outputted is determined, and then the encoded image data is decoded up to a layer of hierarchy which is at least one layer more than a minimum number of layer/layers of hierarchy necessary to acquire an image of the determined size.
19 Citations
53 Claims
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1-23. -23. (canceled)
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24. An encoding method of hierarchically encoding an image, comprising:
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restraining a frequency component which causes alias of an image signal of the image at the time of separating the image signal into layers of hierarchy; and separating the restrained image signal into layers of hierarchy. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 37, 52)
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35-36. -36. (canceled)
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38. An encoding apparatus for hierarchically encoding an image, comprising:
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a frequency restraining unit that restrains a frequency component which causes alias of an image signal of the image at the time of separating the image signal into layers of hierarchy; and a separating unit that separates the image signal restrained by said frequency restraining unit into layers of hierarchy. - View Dependent Claims (39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 51)
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49-50. -50. (canceled)
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53-85. -85. (canceled)
Specification