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图像dct变换的程序
- 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 diagr
dct83ct
- 这是四维DCT变换的代码，对DCT压缩变换感兴趣的人可以将此作为参考，个人认为非常好。-This is the four-dimensional DCT code, the DCT compression for interested persons can be used as a reference. personal view is very good.
Jpeg-Compression
- 附件里的文件是我已经提交给学校的一个工作。它演示了一个JPEG图像压缩算法的全部。使用一个矩阵操作实现DCT变换（提示MATLAB有一个自己的DCT和iDCT函数，可能它的会更高效），附件里的ReadMe.txt包含了详细的算法Restoration
对girl图像做二维DCT
- 对girl图像做二维DCT，并通过对变换后的某些系数置零达到压缩目的,Girl doing two-dimensional images of the DCT, and through certain coefficients transformed to achieve compression purpose of nulling
dct
- 利用DCT进行图像压缩（首先将图像分割成8×8的图像，对每个子图像进行DCT，这样每个子图像有64个系数，舍去50％小的变换系数，进行2：1的压缩。）-The use of DCT for image compression
dct
- 实现图像压缩中的DCT变换，尤其是对于H.264视频标准中的DCT变换。-The realization of image compression in DCT transformation, especially for H.264 video standard DCT transform.
DCT
- 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
dct
- 利用dct实现JPEG在Matlab环境下图像压缩程序-Matlab environment in JPEG image compression procedure
Final_28Nov
- 2D-DCT 压缩图像后，通过QPSK,AWGN信道编码传输后，IDCT解压缩回原始图像，适用于任何图像-Using DCT to compress the orginal image, I use zigzag program, quantization, dct compression, then change the vector to bineary bit to pass through the QPSK channel. And from the binary array, I us
DCT
- 256色灰度图像压缩 256色灰度图像dct变换-标量量化-反标量 量化-反DCT-256-color grayscale image compression 256-color grayscale image dct transform- scalar quantization- Anti-scalar quantization- Anti-DCT
dct
- bmp DCT 压缩 对原图像进行DCT变换，数据压缩，丢弃右下角高频数据，进行DCT反变换，得到压缩后的图像-bmp DCT compression of the original image DCT transform, data compression, discarding the lower right corner frequency data, DCT inverse transform, the images are compressed
image-compression
- 使用分块DCT变换实现图像的压缩编码和解码。-Using the block DCT transform image compression coding and decoding.
DCT
- 本文是关于DCT的图像压缩，量化，编码，重建图像-This article is about the DCT for image compression, quantization, coding, image reconstruction
DCT-gongji
- 基于DCT的水印嵌入攻击和提取算法，对RST,加躁，JPEG压缩有较好的鲁棒性-DCT-based watermark embedding and extraction algorithm attack on RST, plus a bit, JPEG compression with better robustness
DCT-compression
- DCT压缩程序，此程序也是找来的，也许对大家有用，学习之用-DCT compression programs, this program is to find, may be useful to everyone, the use of learning
IMAGE-COMPRESSION
- dct压缩编解码的一些资料，希望对大家有所帮助-dct compression codec some of the information, we hope to help you
DCT变换图像压缩
- 基于DCT变换的图像压缩处理，压缩比可自己调整(Image compression processing based on DCT transform)
Image Compression with DCT
- 基于DCT的图像压缩的简单例子，方便新手学习。(DCT based image compression simple example, easy for beginners to learn.)
dct
- DCT变换，用于jpeg压缩，选择DCT不选择DFT(DCT transform,For jpeg compression,DCT is not selected for DFT.)