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    • 8. 发明专利
    • Image editing device and program
    • 图像编辑设备和程序
    • JP2013247402A
    • 2013-12-09
    • JP2012117835
    • 2012-05-23
    • Nikon Corp株式会社ニコン
    • TAKAGI MAKOTO
    • H04N1/41H04N7/30
    • PROBLEM TO BE SOLVED: To suppress image degradation caused by repeating image edit processing, while suppressing increase of storage size for recording image data.SOLUTION: A recording device is an image editing device for editing input image data in which a spatial frequency component, compressed by a reversible coding, is included, and for generating output image data compressed by the reversible coding. The recording device includes a decoding part for extracting a DC component and an AC component included in a spatial frequency component by decoding input image data, a DC component change part for changing the DC component extracted by the decoding part, a coding part for compressing the DC component changed by the DC component change part and the AC component extracted by the decoding part, by the reversible coding, and an output image data generation part for generating output image data which include the DC component and the AC component reversibly coded by the coding part.
    • 要解决的问题:抑制由于重复图像编辑处理引起的图像劣化,同时抑制用于记录图像数据的存储尺寸的增加。解决方案:记录装置是用于编辑输入图像数据的图像编辑装置,其中空间频率分量被压缩 通过可逆编码被包括,并且用于产生通过可逆编码压缩的输出图像数据。 记录装置包括用于通过解码输入图像数据来提取包括在空间频率分量中的DC分量和AC分量的解码部分,用于改变由解码部分提取的DC分量的DC分量改变部分,用于压缩 由可逆编码的DC分量变化部分和由解码部分提取的AC分量改变的DC分量以及用于产生输出图像数据的输出图像数据生成部分,该输出图像数据包括通过编码可逆地编码的DC分量和AC分量 部分。