Experimental results show that the proposed technique is robust to common digital image processing operations and the quality of the watermarked image is guaranteed.

仿真实验表明，该算法对常见的一些数字图像处理操作具有较强的鲁棒性，同时能保证含水印图像的质量。

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Image interpolation is an important task in the field of digital image processing. It is fundamental to many digital image operations, such as scaling, rotation, and geometric correction.

图像插值是数字图像处理领域的一项重要任务，是图像缩放、旋转、几何矫正等图像操作的基础。

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Study two of the most important basic operations in digital image processing: 2-D Discrete Fourier Transform and 2-D Discrete Convolution Transform. Map them on RCA.

研究了数字图像处理中两种最常用的算子——离散二维傅立叶变换和离散二维卷积，并给出了它们在RCA上的映射策略和映射过程。

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