| 基于遗传算法的DCT脆弱水印优化 |
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| 引用本文： | 刘艳.基于遗传算法的DCT脆弱水印优化[J].价值工程,2011,30(5):164-165. |
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| 作者姓名： | 刘艳 |
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| 作者单位： | 桂林医学院附属医院教学管理部,桂林,541001 |
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| 摘 要： | 基于离散余弦变换的脆弱数字水印计算过程中,由于浮点数-整数转换过程舍入误差造成影像峰值信噪比(PSNR)降低,提取水印标准互相关相似度(NC)低,采用遗传算法的智能优化算法,可以修正变换过程产生的舍入误差,提高基于离散余弦变换的脆弱数字水印的性能。
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| 关 键 词： | 遗传算法 数字水印 舍入误差 |
DCT Fragile Watermarking Optimization Based on Genetic Algorithm |
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| Liu Yan.DCT Fragile Watermarking Optimization Based on Genetic Algorithm[J].Value Engineering,2011,30(5):164-165. |
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| Authors: | Liu Yan |
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| Institution: | Liu Yan(Affiliated Hospital of Guilin Medical University Department of Teaching Management,Guilin 541001,China) |
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| Abstract: | The rounding errors having worse effectives on the PSNR and NC values produced in float-integer transformation process of DCT based fragile watermarking is studied.For intelligent optimization algorithms such as genetic algorithms used to correct such rounding errors to optimize the DCT based watermarking technologies are introduced. |
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| Keywords: | genetic algorithm watermark round error |
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