Image Mirroring and Rotation in the Wavelet Domain
نویسندگان
چکیده
JPEG2000, the international standard for still image compression, uses wavelet transform. The filters used by JPEG2000 for transformation are the 9/7 Daubechies filters and the 5/3 Le Gall filter. At present, to achieve image mirroring or rotation for images, we have to convert them back to spatial domain and proceed. This paper presents methods by which we can implement the same in the wavelet domain, without extra computational complexity. To do so, we manipulate the transform domain coefficients so that the condition of perfect reconstruction still holds true.
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عنوان ژورنال:
- IJWMIP
دوره 8 شماره
صفحات -
تاریخ انتشار 2010