搜索资源列表
mmx
- 使用MMX的IDCT算法。Uses MMX the IDCT algorithm -The IDCT algorithm using MMX. Uses MMX the IDCT algorithm
xapp208
- xilinx 基于查找表方法实现的IDCT的verilog源码-Xilinx LUT-based method to achieve the IDCT of the Verilog source code
ques12
- . Write MATLAB code that will do the following. (a) Apply DCT on an image and obtain the o/p (b) On the DCT image apply quantization using standard quantiser. (8×8) (c) Apply IDCT to retain back the image. Apply Hoffman compression -. Writ
DCT-Picture-Handler
- DCT,IDCT实例,可以学习下DCT对图片的处理相关工作，VC++源码-DCT, IDCT instance, can learn DCT for image processing-related work, VC++ source
idct
- 能成功实现8*8的离散余弦反变换，在quartus II 环境下运行-Can be successfully realized 8* 8 discrete cosine inverse transform, running in quartus II environment
jpeg
- 自己写的jpeg的压缩，自己写的DCT以及IDCT,没有采用huffman编码，因为太难了，采用的是游程编码，可以直接运行，压缩比达到要求。内付文档详细说明代码。-Write your own jpeg compression, and write their own DCT and IDCT, did not use huffman coding, because too difficult, using run-length encoding, you can directly run th
Image-Compression
- DCT变换1、 提取彩色图像，将图像大小限制为512* 3； 2、 提取彩色图像三个颜色分量的矩阵，每个矩阵单独处理； 3、 将矩阵分为8*8的块，做DCT变换； 4、 提取每个块的一部分DCT系数做IDCT变换，显示基本图像； 5、 再提取每个块的一部分DCT系数做DCT反变换，得到增强层1，与前一次得到的数据叠加，得到质量更好的图像。 -DCT transform
zhiluanbianhuan
- 数字水印置乱变换频域插入程序，含有置乱变换与逆置乱算法，DCT运算与IDCT运算-Digital watermarking Scrambling frequency domain insertion procedure contains scrambling transformation and inverse scrambling algorithm, DCT operation and IDCT operation
DCT
- 基于DCT域的数字水印算法主要包括水印调制、水印嵌入和水印提取，首先在嵌入载体图像之前用Logistic混沌序列对水印进行调制，得到一个只有+1和-1随机序列的水印，同时将载体图像进行全局DCT变换，然后将水印图像嵌入人类视觉系统最重要的部分，即DCT最大的系数，DC（Direct Current）部分也包含在这最大的系数中，这部分的系数满足人类视觉特性，会使水印嵌入的性能更好。嵌入算法是将水印与这些系数进行相乘获得新的系数，再用新的系数来替换原来的系数，即获得嵌入水印后的离散余弦域的图像，然后
video-coding_mini-project_H.264
- 该程序实现了基本的H.264视频编码标准。-This is a mini-program of H.264, an efficient video coding standard. This program includes zig-zag scan, entropy coding, IDCT and implements basic functions of H.264.
jpeg
- 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.
atomic_exchange_explicit
- eob adjust.. the idct can only skip if both the dc and eob are zero.
vp9_idct
- Constants and Macros used by all idct dct functions.
armCOMM_IDCT_s
- The 8x8 2D IDCT is performed by calculating a 1D IDCT for each column and then a 1D IDCT for each row. -The 8x8 2D IDCT is performed by calculating a 1D IDCT for each column and then a 1D IDCT for each row.
armCOMM_IDCTTable
- File : armCOMM_IDCTTable.h Descr iption : Contains declarations of tables for IDCT calculation.
DCTAndIDCT
- 图像的DCT余弦变换（频谱变换），包括IDCT变换以及反变换。经过测试修改源代码中的笔误。包括理论。-Image DCT cosine transform (spectrum transform), comprising IDCT transform and inverse transform. Tested modify the source code of a clerical error. Including theoretical.
exp10_3_BF537.7z
- ADSP-BF537 Experiment 10.3_BF537 2D DCT and IDCT using BF537 EZ-KIT
hw1
- 自己写的fft，iff和dct，idct变换，打开后可直接运行- My own fft and dct, can be directly run
DCTcolor
- 彩色图像的DCT和IDCT变换,在vs2013运行成功-Color image DCT and IDCT transform
JPEG_DECODE
- 本解码器类支持普通jpeg文件格式，这也是目前大多数jpeg文件所采用的格式，此格式主要特点是数据精度为8位，采用Huffman编码的普通DCT帧（不支持扩展串行和递进模式及数学编码）。本解码器类的 IDCT算法采用三种模式，分别是浮点解码、定点整数解码和定点整数MMX优化解码，您可根据具体情况选择。-The decoder class support common JPEG file format, which is currently the most JPEG files in the f