梅魯然 的英文怎麼說
中文拼音 [méilǔrán]
梅魯然
英文
meruzhan-
First, resistance to geometrical distortion was obtained by using moment normalization ; second, we focus on the phase of fourier - mellin transform. before detecting watermark, synchronization could be retrieved by using the phase information. to eliminate the influence of pixel value distortion generated during print / scan process, a dft - based robust watermark algorithm was designed, which could successfully detect watermark from a severe distorted image
另一種思路是根據圖像經過旋轉、縮放、平移后,其傅立葉?梅林變換域只有相位受到影響的特點,從其相位中提取幾何失真信息,然後再進行相應的失真補償,從而消除幾何失真的影響;對于列印掃描過程產生的像素值失真,本文也提出了一種基於dft的魯棒性演算法,能在較嚴重的圖像失真情況下,成功檢測水印。
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