【摘要】 充分考虑人类视觉系统和双色图像特点,采用YCbCr色彩模型,将双色图像Y分量取出并分块,将二值水印信息"逻辑"嵌入到每个分块中低频带系数中。实验结果表明,该算法对JPEG压缩、噪声及亮度变化等常见攻击行为具有很好的稳健性,并且支持水印的盲检测。更多还原

【Abstract】 In view of the human visual system and double-color image characteristics,employing YCbCr color model and block Y component of double-colors image,binary watermark was logically embedded in each block of low-frequency band coefficients.Experimental results show that the algorithm has good robustness to JPEG compression,brightness change,noise etc,and blind detection watermark is supported.更多还原