图像压缩编码码matlab实现,包括线性预测编码,算术编码,行程编码,变换编码,DM编码,jpeg

上传者: ccsss22 | 上传时间: 2022-04-06 03:02:37 | 文件大小: 190KB | 文件类型: RAR
图像压缩编码码matlab实现,包括线性预测编码,算术编码,行程编码,变换编码,DM编码,jpeg x = double(x) - 128; %像素层次移动-128 [xm, xn] = size(x); %得到像素尺寸 t = dctmtx(8); %得到8*8DCT矩阵 %将图像分割成8*8子图像,进行DCT,然后进行量化 y = blkproc(x, [8,8], 'P1*x*P2', t, t'); m = [16 11 10 16 24 40 51 61 %JPEG量化步长矩阵 12 12 14 19 26 58 60 55 14 13 16 24 40 57 69 56 14 17 22 29 51 87 80 62 18 22 37 56 68 109 103 77 24 35 55 64 81 104 113 92 49 64 78 87 103 121 120 101 72 92 95 98 112 110 103 99]*quality;

文件下载

资源详情

[{"title":"( 27 个子文件 190KB ) 图像压缩编码码matlab实现,包括线性预测编码,算术编码,行程编码,变换编码,DM编码,jpeg","children":[{"title":"常用参数计算","children":[{"title":"erms.m <span style='color:#111;'> 136B </span>","children":null,"spread":false},{"title":"bytes.m <span style='color:#111;'> 314B </span>","children":null,"spread":false},{"title":"frequency.m <span style='color:#111;'> 295B </span>","children":null,"spread":false},{"title":"imageratio.m <span style='color:#111;'> 115B </span>","children":null,"spread":false},{"title":"entropy.m <span style='color:#111;'> 252B </span>","children":null,"spread":false},{"title":"psnr.m <span style='color:#111;'> 245B </span>","children":null,"spread":false}],"spread":true},{"title":"DM编码","children":[{"title":"ex2DM.m <span style='color:#111;'> 233B </span>","children":null,"spread":false},{"title":"ex1DM.m <span style='color:#111;'> 272B </span>","children":null,"spread":false},{"title":"DMencode.m <span style='color:#111;'> 755B </span>","children":null,"spread":false},{"title":"DMdecode.m <span style='color:#111;'> 318B </span>","children":null,"spread":false}],"spread":true},{"title":"行程编码","children":[{"title":"RLEdecode.m <span style='color:#111;'> 260B </span>","children":null,"spread":false},{"title":"RLEncode.m <span style='color:#111;'> 541B </span>","children":null,"spread":false},{"title":"exRLE.m <span style='color:#111;'> 365B </span>","children":null,"spread":false}],"spread":true},{"title":"算术编码","children":[{"title":"ardecode.m <span style='color:#111;'> 1014B </span>","children":null,"spread":false},{"title":"exAR.m <span style='color:#111;'> 179B </span>","children":null,"spread":false},{"title":"arencode.m <span style='color:#111;'> 587B </span>","children":null,"spread":false}],"spread":true},{"title":"变换编码","children":[{"title":"exDCT.m <span style='color:#111;'> 785B </span>","children":null,"spread":false},{"title":"exFFT.m <span style='color:#111;'> 672B </span>","children":null,"spread":false}],"spread":true},{"title":"JSjpeg","children":[{"title":"huffencode.m <span style='color:#111;'> 3.13KB </span>","children":null,"spread":false},{"title":"jpegdecode.m <span style='color:#111;'> 1.49KB </span>","children":null,"spread":false},{"title":"lena512.bmp <span style='color:#111;'> 257.05KB </span>","children":null,"spread":false},{"title":"huffdecode.m <span style='color:#111;'> 1.08KB </span>","children":null,"spread":false},{"title":"exJPEG.m <span style='color:#111;'> 271B </span>","children":null,"spread":false},{"title":"jpegencode.m <span style='color:#111;'> 1.94KB </span>","children":null,"spread":false}],"spread":true},{"title":"线性预测编码","children":[{"title":"LPCencode.m <span style='color:#111;'> 383B </span>","children":null,"spread":false},{"title":"OnePredictive.m <span style='color:#111;'> 317B </span>","children":null,"spread":false},{"title":"LPCdecode.m <span style='color:#111;'> 413B </span>","children":null,"spread":false}],"spread":true}],"spread":true}]

评论信息

免责申明

【只为小站】的资源来自网友分享,仅供学习研究,请务必在下载后24小时内给予删除,不得用于其他任何用途,否则后果自负。基于互联网的特殊性,【只为小站】 无法对用户传输的作品、信息、内容的权属或合法性、合规性、真实性、科学性、完整权、有效性等进行实质审查;无论 【只为小站】 经营者是否已进行审查,用户均应自行承担因其传输的作品、信息、内容而可能或已经产生的侵权或权属纠纷等法律责任。
本站所有资源不代表本站的观点或立场,基于网友分享,根据中国法律《信息网络传播权保护条例》第二十二条之规定,若资源存在侵权或相关问题请联系本站客服人员,zhiweidada#qq.com,请把#换成@,本站将给予最大的支持与配合,做到及时反馈和处理。关于更多版权及免责申明参见 版权及免责申明