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2chapter3
- DCT域上影像縮小1/4的C程式,希望對大家有幫助-DCT domain imaging narrow 1 / 4 C programs, we hope to help
Compression
- 几种常用的压缩算法 本程序包含以下功能: 1、 Arithmetic coding 2、 Huffman coding 3、 LZ77 coding 4、 LZ78 coding 5、 LZW 6、 RLE 7、 DCT 8、 Furie transform
H.265_X86_DEMO
- ZPAV(小名H265),凝集 形态,分形,模糊,小波,数字图象处理学 等数学精华, 我 感受到了她的威猛的能量,听到了她的呐喊!她如春雷, 震撼着 单薄数学(DCT+ME+HUFFMAN等)的MPEGxx和H26xx的古老统治! ZPAV (H.265) 基本算法 :V0,V6 用了 二维小波;V8 用了 三维小波;V9 用了 四维小波; P帧(ME) 使用了 小波域运动估计;声音(A0,A6,A8,A9), 运动矢量(MV) 使用了 广义小波。 Z
test_dct
- 本程序是在VC++编译环境下,用纯C语言编写的2D-DCT变换,程序中用的是一个4*4的矩阵进行的变换,可以改为对一幅图像进行。运算结果正确,在Matlab中进行了检验,dct2()指令即进行DCT变换。有一定的参考价值。-This procedure is in VC++ compiler environment, written in pure C 2D-DCT transform, the program used is a 4 x 4 matrix for the transformat
chengxu
- 基本的DCT水印嵌入和提取的方法。使用DCT算法嵌入水印信息 3)使用DCT算法提取水印信息 4)对嵌入水印的载体进行不可感知性测试 5)对嵌入水印的载体进行鲁棒性测试。 -Basic DCT watermark embedding and extraction method. 3) using the DCT algorithm to extract the watermark information 4) the carrier of the embedded waterma
jpeg2avihojoon
- This a JPEG encoding & decoding program of still image. It does not use level shifting. Discrete Cosine transform (DCT) is performed both by classical & Chen s Flowgraph methods. Predefined JPEG quantization array & zigzag order are used here. RUN -
jpeg_encode+decoderhojoon
- This a JPEG encoding & decoding program of still image. It does not use level shifting. Discrete Cosine transform (DCT) is performed both by classical & Chen s Flowgraph methods. Predefined JPEG quantization array & zigzag order are used here. RUN -
rgbquadtreehojoon
- This a JPEG encoding & decoding program of still image. It does not use level shifting. Discrete Cosine transform (DCT) is performed both by classical & Chen s Flowgraph methods. Predefined JPEG quantization array & zigzag order are used here. RUN -
jpegc
- 本文档实现了JPEG压缩算法,字组织比较简陋, 大体上分成 3 个部分. 压缩算法简介 1. 色彩模型 2. DCT (离散余弦变换) 3. 重排列 DCT 结果 4. 量化 5. 0 RLE 编码 6. 范式 Huffman 编码 7. DC 的编码 解码过程简述 8. 一个数据单元 Y 的解码 9. JPG 文件(Byte 级)里怎样组织图片信息 10. 关于标记 11. JPG 文件中 Haffman 表的储存
3971017DCT
- 对原始灰度图像 Lena_gray.bmp进行图像压缩实验 1.对此图进行 8×8 DCT 变换后,分别只保留 DC系数,以及保留前 4、8、16 个变换系数(DC+AC) ,然后再分别进行 IDCT 变换,比较结果。 2.可以使用 Matlab - Image Processing Toolbox 中的函数实现。-gray image of the original image compression Lena_gray.bmp an experiment. This diagram 8 8
DCT-a-Hamming-coding
- 1.DCT变换,对整个图像的直接DCT变换和分块为8*8做DCT变换,并设定阈值。 2.汉明编码(7,4),译码以及找出错误图样和纠错。并在不同的转移概率的BSC道下进行传输。-DCT:Direct DCT and IDCT,blocking. hamming coding:decoding and picking up errors.
TransformCFortran
- Radix-2 and Kronecker Product RFFT, DST and DCT ... Routines for any number of data points are provided. The 21 programs are grouped as C and Fortran programs. The programs were compiled and tested under Sun Solaris, Microsoft Fortran Power Statio
progams_matlab_dip
- 1.Perform colour image segmentation and pseudo coloring on gray image 2.Import two images and perform Image Addition, subtraction,Image multiplication,division,blending 3.To perform logical and morphological operations 4.To perform DCT and quan
JPEG_Codec
- This a JPEG codec with AC/DC Huffman entropy coding, 4:2:0 Sampling, RGB/YCbCr converter. 2D-DCT and Quantization is included in the JPEG_Main. There also a Huffman table list in .txt, two sample testing picture and the bitrate-PSNR , Compressi
digital-signal-processing
- 实现一个数字信号处理的仿真系统 。要求具有界面并实现以下功能: 1)能产生(得到)并选择各种数字信号(sin、方波、三角波、语音、噪声及其叠加); 2)具有DFT、DCT和小波变换和经典功率谱估计功能; 3)具有设计IIR和FIR低通、高通、带通滤波器功能; 4)能显示时域和频域波形,演示输入信号经过系统得到输出信号过程及频域特性和时间序列。 -Implement a simulation system of digital signal processing. It
DCT-transform-of-the-image
- 对cameraman.tif图像进行DCT变换,分别选取最大的1/4、1/8、1/16个变换系数(其余置为0),进行反DCT得到重构图像,显示原图像和各重构图像并分别计算重构图像的峰值信噪比。-Cameraman.tif DCT transform of the image, were selected maximum 1/4,1/8,1/16 transform coefficients (the remainder is set to 0), inverse DCT to obtain th