JPEG2000, the international standard for still image compression, uses wavelet transform. The filters used by JPEG2000 for transformation are the 9/7 Daubechies filter and the 5/3 Le Gall filter. In this paper, we present a method for image mirroring and rotation in the wavelet domain, by manipulating the transformation coefficients. Our technique requires no additional complexity and the perfect reconstruction property is preserved.
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机译:JPEG2000是静止图像压缩的国际标准,它使用小波变换。 JPEG2000用于转换的滤镜是9/7 Daubechies滤镜和5/3 Le Gall滤镜。在本文中,我们通过控制变换系数,提出了一种在小波域中进行图像镜像和旋转的方法。我们的技术不需要额外的复杂性,并且保留了完美的重建特性。
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