搜索资源列表
TryDCT.rar
- 这是一组DCT和iDCT的代码，都是基于x86构架汇编的或标准C的，有使用MMX、3Dnow或者SSE、SSE2，是陈氏算法的变种，可以参考Intel APP Notes 922
Dxvid_dllxvidcore-1.0.1srcdct
- 快速dct和idct的C程序源码，而且提供了一些优化了的idct的汇编代码。-C source code of fast DCT and IDCT, and some optimized compilation code of IDCT
dct_idct
- 4种不同的dct和idct算法源程序，对于学习dct和idct变换很有帮助-four different types of Extra and IDCT algorithm source for learning Extra transform helpful and IDCT
li_0101
- /*DCT和IDCT快速变换的C语言实现 仿效FFT的FDCT方法有与DCT无关的复数运算部分，选用代数分解法可以降低运 算量，达到高速运算的目的。代数分解法实现如下：对一维DCT表达式直接展开， 寻找各点表达式中共同项，仿FFT蝶形关系，将表达式中的共同项作为下一级节 点，依次进行多次，最后得到变换结果。*/-/ * DCT and IDCT rapid transformation of C language FFT follow the diagr
fdctc
- 本代码演示了普通DCT，快速DCT,快速IDCT算法的实现。-demonstration of the code of common DCT, fast DCT, fast IDCT algorithm implementation.
filter1300
- 用于TM1300/PNX1300系列DSP（主要用于视频处理）的各种滤波器源码，包括fir/iir,以及dct和idct等。-for TM1300/PNX1300 Series DSP (mainly for video processing), the filter All source code, including fir / IIR, and A1501 and IDCT so.
dct_p
- 这是用VHDL语言(硬件描述语言)写的一个二维 8*8块的离散余弦变换(DCT)以及反变换(IDCT).全同步设计,低门数.可以用于多媒体及打印应用领域.-VHDL (hardware descr iption language) wrote a two-dimensional 8 * 8 discrete cosine transform (D CT) and the anti-transform (IDCT). fully synchronous design, low gate cou
BMP_DCT_IDCT
- 本源码是用VC++6.0实现的，显示了BMP位图，并实现了快速的8*8的块的DCT和IDCT变换-the source of VC 6.0, showing a bitmap BMP, and achieve a rapid 8 * 8 block of DCT and IDCT transform
quickidct
- 直接在实数域进行IDCT和DCT快速变换。使用查找表来实现变换中的系数运算。计算速度快，效率高。-directly in the real domain for DCT and IDCT rapid transformation. Use lookup table to achieve the transformation coefficient calculation. Calculating speed, high efficiency.
ImagesharpeningImageTransform
- Sobel算子：是一种空域微分算子，可以通过它锐化图象。 将图象分块(8*8),作DCT变换,并作IDCT：DCT是一种可分离图象变换，用来图象压缩编码。-Sobel Operator : airspace is a differential operator, through its image sharpening. Image will block (8 * 8), for the DCT and IDCT for : DCT is a separable Image Transfor
20031361
- 二维和一维DCT变换以及IDCT变换的程序,有问题自己改正.-two-dimensional and one-dimensional DCT and IDCT transform the procedures to correct their problems.
a_jpeg_compression_matlab
- It shows what a jpeg compression is all about. the function implements the DCT transform, using a matrix operator. note that matlab has a function for the DCT and iDCT transforms that might be more efficient. -It shows what a jpeg compres
DCT_transform
- This file include the DCT and IDCT transform of an image. void show_DCT( void ) void DCT_8x8( float* data ) void IDCT_8x8( float* data ) void BDCT( float* input,int rows,int cols ) void BIDCT( float* input,int rows,int cols ) void get_8x8
DCT_and_IDCT_for_image
- dct and idct for image.matlab实现信息序列的嵌入和提取
imageprocessing6
- 1．选择一幅图像，对该图像进行DCT块操作（将图像分成8×8小块，对每个小块进行DCT变换）。 2.利用屏蔽矩阵对DCT系数进行区域选择，然后进行逆变换（IDCT），合成原图像，计算合成图像的PSNR。 3.选择一小波函数，对一幅图像进行分解，显示各变换系数，观察其规律，并进行小波逆变换，合成原图像。
FFT_FDCT
- 计算并显示一幅二维图象的Fourier变换（幅度和相位谱）及其逆变换，是用FFT实现，调用该程序完成DCT 和IDCT的快速实现程序
dct
- dctt/idct image compression with matlab
digital
- It calculates dct and idct and then calculates psnr and mse
Jridi17.pdf.tar
- An approximate kernel for the discrete cosine transform (DCT) of length 4 is derived from the 4-point DCT defined by the High Efficiency Video Coding (HEVC) standard and used for the computation of DCT and inverse DCT (IDCT) of power-of-two lengt
idctmimoofdm
- generate signal mimo ofdm using dct with m-psk modulation