基于小波和统计特性的自适应图象增强

对一帧YUV比为4:2:0的图象用高通和低通滤波器进行离散小波变换和反变化并输出图象

利用EDA技术和FPGA在UP3开发板上实现直接数字频率综合器的设计。 实验中加入了相位控制字PWORD，用以控制相位偏移量的前四位，将相位偏移量加到ROM地址总线 上，从而引起从ROM中取得的正弦信号的偏移，实现移相信号发生器的移相功能。 实验中还加入了LCD显示功能，通过LCD显示模块器件，用LCD显示正弦信号的频率，所显示的频 率也是由频率字控制的。LCD的驱动原理同上次实验。-The use of EDA technology and FPGA development in the UP3 board direct digital frequency synthesizer design. Experiment by adding a phase control word PWORD, to control the phase offset of the top four will be added to the phase offset ROM address bus, thereby causing ROM obtained from the sinusoidal signal offset, shifted believe realize its phase-shifting function generator. Experiments have also joined the LCD display, LCD display module through the device, with LCD display the frequency of sinusoidal signal, as shown by the frequency of word frequency control. LCD driving principles with the previous experiment.

图象的harr小波分解与重构-image Harr wavelet decomposition and reconstruction

小波分析理论与Matlab 7实现.rar，希望对大家有帮助-Wavelet analysis theory and Matlab 7 to achieve. Rar, want to help everyone

由于小波变换具有良好的时频分析特性，已经广泛应用于各种信号分析领域。由于小波变换算法的复杂性，如果直接计算小波变换，所需内存较大，耗时较长。尽管当今处理器芯片运算速度得到了大幅度的提高，但仍然在实时性上不能满足要求。为了简化计算过程，人们相继设计了一系列的快速算法来计算小波变换，以降低其运算次数。-Since the wavelet transform has good time-frequency analysis features, has been widely used in various fields of signal analysis. Wavelet transform algorithm as a result of the complexity, if the direct calculation of wavelet transform, the larger memory requirements, a longer time-consuming. Despite the computational speed of today

intel JPEG2000，需要IPP

实现图像的正交变换，包括傅立叶变换，沃尔什变换，小波变换等-Realize the orthogonal transformation images, including Fourier transform, Walsh transform, wavelet transform, etc.

It contains very useful coding about three dimension spiht, which includes picture compression and video compression without motion-compensationa and motion-estimation.

vc编码的小波变换程序-vc wavelet transform coding procedures

小波理论与应用书中参考程序，二进小波变换图像增强及数字水印。c++程序-Wavelet Theory and Applications book reference procedure, the dyadic wavelet transform image enhancement and digital watermarking. c++ program