搜索资源列表
差值与下采样
针对常用的图像下采样方法无法满足不同应用需要的问题，提出下采样和插值在实现技术上具有同一性的特点，下采样可以采用插值的大量先进技术。将下采样与插值均看作是对邻域未知像素的预测，建立了统一的像素预测模型。实验结果验证了该同一性的思想，并表明与常用的下采样方法相比，在具有保持特征、保护边缘、维持平滑等特性的基础上，能够使下采样后的图像保持更多的信息，从而为下采样在不同应用中的实现提供了更多可选择的方法。
downsample
- dct域内视频的下采样源程序，分辨率从1080×1920下采为480*640-the original program file of video sub-sampling in DCT domain,the precision is 480*640 under 1080x1920
ad采样再fft
- 在ccs环境下的c语言编程主要实现ad采样在对其进行FFT变换-Language programming mainly realizes the ad sampling in ccs under the environment c in carries on FFT to it transforms
Image_src
- 图像处理源代码，实现了读取PGM图像，写PGM图像，对图像进行下采样得到一半大小图像的功能。testImage.cpp中包含main函数。-image processing source code, achieving PGM images read, write PGM image, the image sampling to be conducted under half the size of the image function
4CIF2QCIF
- 一个图像下采样程序将4CIF图像转为CIF图像，可以学习CIF格式-images under a sampling procedures are applicable to images CIF images, we can learn from CIF format
ofdm_1024
- OFDM系统仿真，采用1024子载波，内含卷积编码，交织，QPSK调制，上、下采样滤波，信道估计等-OFDM system simulation, using 1024 subcarriers, including convolutional coding, interleaving, QPSK modulation, the upper and lower sampling filtering, channel estimation,
basicprocessing
- 图像位平面分割，高斯金字塔生成与复原，图像4因子下采样等基本操作，有详细的代码注释。-Image bit-plane partition, Gaussian pyramid generation and recovery, image down-sampling factor 4 basic operations, the code has detailed notes.
code
- 无下采样的contourlet变换阈值去噪； 无下采样的contourlet变换matlab7.0工具箱-No down-sampling of Contourlet Transform Thresholding Denoising without down-sampling the transform Contourlet matlab7.0 Toolbox
downfr
- 实现下2采样功能，下采样是小波分析和图像、视频处理中常用的方法-The realization of the next 2 sampling functions, under the sampling is wavelet analysis and image, video processing in commonly used method
lunkuobianhuan
- 一种非常新颖的多角度多尺度变换，轮廓变换的 改进，非下采样轮廓变换，可用于图像处理的多个方面-A very innovative multi-angle multi-scale transformation, transformation to improve the profile, non-down-sampling profile transform, image processing can be used in many ar
zong
- 对语音信号进行上采样，下采样，延迟还有回声，在matlab中实现-Voice signals to the sampling, under sampling, the delay still echo in matlab to achieve
code
- 用Matlab进行BPSK系统发送、接收端的仿真，含有发送端、AWGN信道、匹配滤波、下采样、解调、计算不同信噪比下的误码率，并绘制BER曲线-Matlab simulation of BPSK receiving system，including AWGN channel, match filter, down sample,demodulation and BER calculation
BPSK
- 上采样和下采样的matlab程序，以函数形式给出，有三种模式。-upsampling,downsampling,matlab,three mode
soundchange
- 对原始语音进行上采样和下采样，分析对比他们的时域图和频谱图。最后对比原始语音、75HZ激励、150HZ激励以及噪声激励下的效果-SOME SIMPLE MANIPULATIONS OF SOUND USING DIGITAL SIGNAL PROCESSING The original sound and its spectrogram Downsampling the waveform downsampling Ups
Upsampling_and_Downsampling
- 采样率转换程序，程序主体分为上采样与下采样-Sample rate conversion process, the program is divided into the main sampling and down-sampling
nsct_toolbox
- 对图像进行非下采样小波变换，得到一个低频子带和若干个高频子带。-Under the image of non-sampling wavelet transform, to get a low-frequency sub-band and a number of high-frequency sub-band.
OFDM-qpsk
- OFDM，QPSK调制下仿真程序，包括信道编解码，调制解调，上下采样-OFDM, QPSK modulation simulation program, including channel coding and decoding, modulation and demodulation, the upper and lower sampling
wavelet_1D
- 二进小波 分解,可以调节变化层数，可以自己编写下采样函数-Dyadic wavelet decomposition, changes in number of layers can be adjusted, you can write your own down-sampling function
bFilter
- 经过改进的快速的双边滤波器算法，主要是先下采样，然后进行滤波，最后再进行上采样-Improved bilateral rapid filter algorithm is the first major down-sampling, and then filtered, and finally to the sampling
非下采样轮廓波变换，NSCT变换，主要用于图像去噪
- 非下采样轮廓波变换，NSCT变换，主要用于图像去噪(Non - down sampling contourlet transform and NSCT transform are mainly used for image denoising.)