polar map meaning in English
极点图
Examples
- This technique avoids computing inverse log - polar mapping ilpm to preserve the quality of the watermarked image , and avoids exhaustive search to save computation time and reduce false detection . experimental results demonstrate that the digital watermarking technique is invariant and robust to rotation , scaling , and translation transformation
在研究中发现，图像在空域中的旋转对应于该对数极坐标域中沿着角坐标的位移图像在空域中的按比例缩放对应于该对数极坐标域中沿着对数半径坐标的位移而图像在空域中的水平位移对该对数极坐标域没有影响。