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DCT-and-Image-Compression
DCT and Image Compression
In the JPEG image compression algorithm, the input image is divided into
8-by-8 or 16-by-16 blocks, and the two-dimensional DCT is computed for each
block. The DCT coefficients are then quantized, coded, and transmitted. The
JPEG receiver (or JPEG file reader) decodes the quantized DCT coefficients,
computes the inverse two-dimensional DCT of each block, and then puts the
blocks back together into a single image. For typical images, many of the
DCT coefficients have values close to zero these coefficients can be discarded
without seriously affecting the quality of the reconstructed image.
The example code below computes the two-dimensional DCT of 8-by-8 blocks
in the input image, discards (sets to zero) all but 10 of the 64 DCT coefficients
in each block, and then reconstructs the image using the two-dimensional
inverse DCT of each block. The transform matrix computation method is used.
- 2014-01-28 16:55:07下载
- 积分：1
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solor-preference
关于光伏组件研究的相关资料，很有参考价值(Related information on the study of PV modules, a good reference value)
- 2020-08-23 15:08:17下载
- 积分：1
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ForWaRD
(ForWaRD)Fourier-Wavelet Regularized Deconvolution的完整MATLAB代码，内包括相应文献，该方法用去复原图像，去模糊。((ForWaRD) Fourier-Wavelet Regularized Deconvolution of the complete MATLAB code, which includes the corresponding literature, the method used up recovery images, go fuzzy.)
- 2010-08-22 18:27:44下载
- 积分：1
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snake
在MATLAB环境中，使用SNAKE方法进行图像的分割(In the MATLAB environment, use the SNAKE method for segmentation of images)
- 2010-05-20 22:35:46下载
- 积分：1
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MATLABM
是关于matlab通讯的一篇论文，有需要的可以看看，感觉挺好挺实用(Is a thesis on matlab communication need to look at, I feel very good to very practical)
- 2012-05-23 15:57:58下载
- 积分：1
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a20700
转差频率控制的异步电机矢量控制系统仿真。。(zhuanchapinlvkongzhi)
- 2021-01-15 21:18:46下载
- 积分：1
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digitalsignalprocessing
数字信号处理关于数字滤波器的设计，并用matlab实现(Digital signal processing on the digital filter design and realization of matlab)
- 2009-06-07 15:13:33下载
- 积分：1
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daopin
生成导频信号，并利用导频进行信道估计，利用两种方法分别进行信道估计，两种方法并进行了比较。(Generating a pilot signal, and using pilot channel estimation)
- 2016-12-29 22:53:21下载
- 积分：1
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contourlettransform
基于边缘和局部能量的NSCT变换遥感图像融合(Adaptive multi-spectral and panchromatic images fusion algorithm based on unsubsampled contourlet transform)
- 2010-05-24 15:19:19下载
- 积分：1
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matlab
灰关联上的源代码，主要用于计算机使用，便于计算者进行灰关联计算。(matlab)
- 2009-03-14 10:30:24下载
- 积分：1
