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[matlab] 七个不变矩 DL : 0: 形状特征的七个不变矩，用matlab实现-Shape characteristics of the seven moment invariants, using matlab to achieve
Update : 2025-02-17 Size : 1kb Publisher : 何宇
[Software Engineering] soft-barron-s60 DL : 0: Coefficients a and b control the low and high frequency ranges that the watermark affects. Because of the watermark invariant properties, we embed the watermark only in the Fourier descriptor magnitude. We use the inverse Fourier transform of the Fourier coefficients to produce the watermarked curve L . This watermarking method is also applicable in the control points of B-spline contour representations. In both polygonal curves and in B-spline curves, watermark embedding can create curve discontinuities or curve self-crossing.
Update : 2025-02-17 Size : 259kb Publisher : Mr Leo
[Industry research] watermarking-pdf DL : 0: Abstract—A novel image watermarking algorithm against geometric attacks is proposed to solve watermarking synchronization problems. In watermark embedding, firstly, watermark is embedded into host image by a Single Value Decomposition (SVD) method then, feature-points of watermarked image are extracted using Scale Invariant Feature Transform (SIFT) algorithm.-Abstract—A novel image watermarking algorithm against geometric attacks is proposed to solve watermarking synchronization problems. In watermark embedding, firstly, watermark is embedded into host image by a Single Value Decomposition (SVD) method then, feature-points of watermarked image are extracted using Scale Invariant Feature Transform (SIFT) algorithm.
Update : 2025-02-17 Size : 13.22mb Publisher : tarun rathi
[matlab] code-for-robust-feature-based-image-water-marking DL : 0: A digital image watermarking scheme must be robust against a variety of possible attacks. In the proposed approach, a new rotation and scaling invariant image watermarking scheme is proposed based on rotation invariant feature and image normalization. The rotation invariant features are extracted from the segmented areas and are selected as reference points. Sub-regions centered at the feature points are used for watermark embedding and extraction. Image normalization is applied to the sub-regions to achieve scaling invariance. In the scheme, first, the image is segmented into a number of homogeneous regions and the feature points are extracted. Then the circular regions for watermark embedding or extraction are defined. Based on the image normalization and orientation assignment, the rotation, scaling, and translation invariant regions can be used for watermark embedding and extraction.
Update : 2025-02-17 Size : 1.41mb Publisher : prasannakumar
[Other] buifan DL : 0: 基于小波变换的数字水印算法matlab代码，结合PCA的尺度不变特征变换(SIFT)算法，有详细的注释。- Based on wavelet transform digital watermarking algorithm matlab code, Combined with PCA scale invariant feature transform (SIFT) algorithm, There are detailed notes.
Update : 2025-02-17 Size : 6kb Publisher : 豆三军
[matlab] kingnun_v22 DL : 0: 结合PCA的尺度不变特征变换(SIFT)算法，实现了图像的加水印，去噪，加噪声等功能，线性调频脉冲压缩的Matlab程序。- Combined with PCA scale invariant feature transform (SIFT) algorithm, Realize image watermarking, de-noising, plus noise and other functions, LFM pulse compression of the Matlab program.
Update : 2025-02-17 Size : 4kb Publisher : 徐百伯
[matlab] keilen_v16 DL : 0: 雅克比迭代求解线性方程组课设,基于小波变换的数字水印算法matlab代码，结合PCA的尺度不变特征变换(SIFT)算法。- Jacobi iteration for solving linear equations class-based, Based on wavelet transform digital watermarking algorithm matlab code, Combined with PCA scale invariant feature transform (SIFT) algorithm.
Update : 2025-02-17 Size : 6kb Publisher : penfiubiunui
[ARM-PowerPC-ColdFire-MIPS] te560 DL : 0: Weighted acceleration, Combined with PCA scale invariant feature transform (SIFT) algorithm, Realize image watermarking, de-noising, plus noise and other functions.
Update : 2025-02-17 Size : 58kb Publisher : 张建辉