Search - DCT compression in matlab

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[Graph program] DCT-8x8 DL : 0: 使用DCT算法实现8X8的BMP图像压缩的一个源代码，希望对大家有用~-8x8 algorithm using DCT image compression of BMP, a source code, in the hope that useful to everyone ~
Date : 2025-12-20 Size : 3kb User : viconia
[Graph program] DCTmatlab DL : 0: 基于DCT变换的图像压缩matlab实现（附测试图）-DCT-based image compression transform matlab realize (with the test chart)
Date : 2025-12-20 Size : 59kb User : 小兔兔牙
[Graph program] 3D-DCTTransform DL : 0: 三维DCT变换是在空间信息上增加了一维的时间维度，对视频系列直接进行压缩-Three-dimensional DCT transform information in the space are added to one-dimensional time dimensions of the video series for direct compression
Date : 2025-12-20 Size : 14kb User : farmer
[Graph program] tuxiangbianhuan DL : 0: 图像变换将图象分块(8*8)，作DCT变换，并作IDCT：DCT是一种可分离图象变换，用来图象压缩编码，IDCT用来解压缩-Image transform to image sub-block (8* 8), for the DCT transform, and IDCT: DCT is a separable transform image to image compression coding, IDCT used to extract
Date : 2025-12-20 Size : 17kb User : 陈杰
[Graph program] JPEGCOMPRESS DL : 1: 这是一个基于DCT的图像JPEG压缩程序，并将压缩码保存在一TXT文本中-This is a DCT-based JPEG image compression process, and code stored in a compressed text in TXT
Date : 2025-12-20 Size : 58kb User : yang
[Graph program] dct DL : 0: 利用dct实现JPEG在Matlab环境下图像压缩程序-Matlab environment in JPEG image compression procedure
Date : 2025-12-20 Size : 3kb User : 石头
[Graph program] DCT_SVD DL : 1: 本文提出一种在原始视频DCT(离散余弦变换)与SVD(奇异值分解)域自适应嵌入水印的算法。算法首先将视频流分割成一个个场景,场景中的视频图像被变换到DCT-SVD域中,水印量化嵌入在最大奇异上,实现了水印盲检测。同时实验证明该算法在满足透明性要求下也满足一定的鲁棒性要求,能够抵抗低通滤波、中值滤波、椒盐噪声、高斯噪声、H.264压缩攻击以及统计攻击和帧剪切等攻击。-This paper presents an original video in the DCT (Discrete Cosine Transform) and SVD (singular value decomposition) algorithm for adaptive watermark embedding. Firstly, a video stream is divided into scenes, scenes of the video image is converted to the DCT-SVD domain, the watermark embedded in the largest singular quantification, the realization of the watermark signal. Furthermore, the experiments show that the algorithm meet the transparency requirements are met under certain robustness requirements, can resist the low-pass filtering, median filtering, salt and pepper noise, Gaussian noise, H.264 compression attacks and attacks and frame shear statistics attack.
Date : 2025-12-20 Size : 62kb User : 久久