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H264中的整数DCT变换编码及量化代码,并附有原文的DCT编码、量化的说明文档。本源码从X264及JM中抽取后整理得来,并用原文档中的示例数据进行了测试,与原文档结果完全一样,是学习H.264不可多得的参考资源.
Date : 2009-08-18 Size : 63.07kb User : renxj@tom.com

对原始灰度图像 Lena_gray.bmp进行图像压缩实验 1.对此图进行 8×8 DCT 变换后,分别只保留 DC系数,以及保留前 4、8、16 个变换系数(DC+AC) ,然后再分别进行 IDCT 变换,比较结果。 2.可以使用 Matlab - Image Processing Toolbox 中的函数实现。 -gray image of the original image compression Lena_gray.bmp an experiment. This diagram 8 8 DCT, the only difference reservations DC coefficient, and the preservation of the former 4, 8 or 16 DCT coefficients (DC+ AC), and then separately IDCT transformation, the results of the comparison. 2. Using Matlab-Image Processing Toolbox to achieve the function.
Date : 2025-12-23 Size : 1kb User : 朱晓路

这是一个非常有用的DCT变换的原代码,用c语言编写,希望对大家有帮助。-This is a very useful DCT's original code using the c language, and I hope to be helpful.
Date : 2025-12-23 Size : 131kb User : 何忠

数字版权保护的毕业设计,利用DCT进行变换,但是算法比较新颖,里面包括所有的matlab程序。-digital copyright protection graduation design, for the use of DCT transformation, but rather novel algorithm, includes all the Matlab procedures.
Date : 2025-12-23 Size : 51kb User : 刘伟

基于DCT域的数字图像水印的处理,经测试可以达到对水印检测的功能-DCT-based digital watermark image processing, testing can be achieved by the right watermark detection function
Date : 2025-12-23 Size : 2kb User : 胡先生

将一副256*256的灰度图像分成8*8的小图像块,然后进行dct变换-Will be a 256* 256 gray image is divided into 8* 8 small image blocks, and then proceed to DCT transform
Date : 2025-12-23 Size : 380kb User : 笨笨

DCT,即离散余弦变换。该变换对消除光照影响效果比较好,该算法本人用过,还算好用,代码也很简单!有用的拿去把-DCT, that is, discrete cosine transform. The transformation to eliminate the effects of light is better, the algorithm I used, still useful, the code is also very simple! Useful to take the
Date : 2025-12-23 Size : 1kb User : sun

数字图像处理程序,TI公司CCS2.0平台,内部程序用c编写,实现数字图像的DCT变换-Digital image processing procedures, TI company CCS2.0 platform c prepared with internal procedures, to achieve the digital image of the DCT transform
Date : 2025-12-23 Size : 98kb User : 侯天峰

继续,这个是,恩,还是和数字水印和图像处理有关系的东西拉,因为最近在做这个拉,恩,之所以这么着急的一下子就上传5个,是因为我真的有一点东西要看一下,看了好长哪方面的资料,可是还是不能搞定,所以要找源码看看啊,所以麻烦站长了,赶紧帮我开通一下拉,谢谢啊!真诚的。 转入正题:这个是一个离散余弦变换的C语言程序,相信数字水印和图像处理方面的编程者对他很熟悉,使用matlab实现他很简单,可是。。。我们用的是VC啊。哈哈,不过没有关系拉,这个我已经搞定了,所以如果你对此还是不很熟悉,那么就看看这个源码吧,直接用也很方便,是对m*n的分块进行的DCT变换,还有反变换,所以使用VC语言的数字水印方面的py赶紧来看看吧! 再次感谢站长。-err
Date : 2025-12-23 Size : 1kb User : 莫雨

以GUI形式显示对一幅图像的klt,dct,wht变换压缩的效果,对他们做比较
Date : 2025-12-23 Size : 32kb User : 安飞

在图像的dct域内嵌入数字水印,包括水印嵌入和提取程序。水印为一副图像。-In the image embedded in the DCT domain of digital watermarking, including the watermark embedding and extraction procedures. Watermark for an image.
Date : 2025-12-23 Size : 1kb User : 霞疙瘩228

将图像做成8*8矩阵,然后通过DCT矩阵实现DCT变换的算法-The image into 8* 8 matrix, and then realize DCT transform matrix DCT algorithms
Date : 2025-12-23 Size : 1kb User : wang zhuo

该程序用于对灰度图像进行dct变换的,然后可以在这基础进行量化,编码等。-The procedure used for gray-scale image DCT transform, and then can be quantified on this basis, coding and so on.
Date : 2025-12-23 Size : 62kb User : 草原

这是一个快速DCT算法,在VC++下编写的,通过了验证。是一个值得借鉴的算法-This is a fast DCT algorithm, in VC++ Prepared, through the verification. Is a reference algorithm
Date : 2025-12-23 Size : 583kb User : 霍承富

对一幅彩色图像进行离散DCT变换,并且选择合适的阀值进行DCT反变换-Color of an image of discrete DCT transform, and select the appropriate threshold for DCT Transform
Date : 2025-12-23 Size : 1kb User : 李雅

DCT变换的源代码,支持一维二维DCT变换及反变换-DCT transform of the source code, to support the one-dimensional two-dimensional DCT transform and inverse transform
Date : 2025-12-23 Size : 2kb User : brenton

视频处理中经常需要进行DCT变换,这是本人自己编写的、可以对图像样点进行一维和二维的DCT变换-Video processing often require DCT transform, which is I have written, you can kind of image points of one-dimensional and two-dimensional DCT transform
Date : 2025-12-23 Size : 9kb User : tobetter

基于dct变换,能实现数字水印嵌入与提取-Based on the DCT transform, to achieve the digital watermark embedding and extraction
Date : 2025-12-23 Size : 976kb User : 李海波

DCT余弦变换编码,处理效果还是不错的-DCT cosine transform coding, the treatment effect is still good
Date : 2025-12-23 Size : 1kb User : 夏正浩

基于DCT域的鲁棒水印,能抗击一定程度的压缩,剪切等攻击-Based on the DCT domain robust watermarking, can fight against a certain degree of compression, shear, such as attacks
Date : 2025-12-23 Size : 42kb User : Robin
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