登录
首页 » matlab » image_coding

image_coding

于 2021-04-21 发布 文件大小:167KB
0 139
下载积分: 1 下载次数: 38

代码说明:

  本代码主要应用于图像压缩,代码包括采用二维离散余弦变换(DCT)进行图像压缩、采用小波变换进行图像压缩以及基于小波变换与混沌排序图像加密压缩、解密重构 hundungen 是ex3的子程序:产生混沌序列(This code is mainly used in image compression, including the use of code dimensional discrete cosine transform (DCT) for image compression, image compression using wavelet transform and wavelet transform compression and chaotic image encryption based sorting, decryption reconstruction)

下载说明:请别用迅雷下载,失败请重下,重下不扣分!

发表评论

0 个回复

  • Image-magnification-narrow
    一段很好的图像放大缩小程序,解码后可以运行。(A very good image magnification narrow program, the decoding can run. )
    2012-07-21 11:04:36下载
    积分:1
  • Target-detection-in-SAR
    合成孔径雷达图像目标检测资料,很有用的哦(Target detection in correlated SAR clutter)
    2011-05-23 16:26:53下载
    积分:1
  • NCSA
    非线性CS算法,提高SAR成像的精度,弥补CSA和RDA的不足(Nonlinear Chirp Scaling Algorithm)
    2013-05-08 17:19:35下载
    积分:1
  • 找圆心坐标
    图像拟合圆并标记圆心坐标,有需要的同志可以参考(The image is fitted to the circle and the center coordinates are marked)
    2018-02-22 13:25:11下载
    积分:1
  • ISAR
    :近距离目标超高分辨率微波成像技术在安全检测、非破坏性控制、生物医学等领域中有着非常重要的应用 价值和广阔的应用前景。该文利用基于窄脉冲形式的超宽带时域雷达系统研究近距离目标的高分辨率ISAR成像, 给出了仿真和实测结果。利用转台旋转目标,基于超宽带脉冲源和超宽带收发天线以及高性能取样示波器,配以同 步触发脉冲和自行研发的数据采集软件,搭建了该时域雷达实验系统,提出了准确获取目标回波信息的实验条件, 和实现回波延时精确校正的误差补偿方法。并针对采样时间窗内的杂波干扰,讨论了时域后向投影算法(Back Projection,BP)与背景对消技术相结合的成像算法,实现了分辨率为 8 mm 的近距离目标的成像,准确地反映了 目标的位置、形状和大小等信息。( The high resolution imaging of near field targets are interesting for security, non-destructive control and biomedical application. In this paper, high resolution near field ISAR imaging is implemented using Ultra Wide Band (UWB) time domain radar system. Simulation and experiment are both conducted. The target is rotated by turntable. The system is built based on the UWB pulse source, UWB antennas, high performance sampling oscillograph, synchronous trigger pulse and proper motion study data acquisition software. Experiment condition and delay errors compensation method are presented to obtain accurate echo information of the target. And Back Projection (BP) combined with background cancel algorithm is discussed considering the clutter interference in time window. )
    2011-06-19 10:30:55下载
    积分:1
  • levelset segmentation biasCorrection v1
    水平集(level set)的基本思想是将界面看成高一维空间中某一函数ψ(称为水平集函数)的零水平集,同时界面的演化也扩充到高一维的空间中。我们将水平集函数按照它所满足的发展方程进行演化或迭代,由于水平集函数不断进行演化,所以对应的零水平集也在不断变化,当水平集演化趋于平稳时,演化停止,得到界面形状。(The level set (level set) the basic idea is to interface as a higher dimensional space in a function (called a level set function) of the zero level set, and the interface evolution also extended to higher dimensional space. We evolve or iterate the level set function according to the evolution equation it satisfies. Because the level set function keeps evolving, so the corresponding zero level set is also changing. When the level set evolves to a stable state, the evolution stops, and the interface shape is obtained.)
    2018-03-16 09:47:21下载
    积分:1
  • ORB-and-FREAK-experiments-
    ORB和FREAK局部特征对比实验ORB_FREAK(ORB and FREAK local features of comparative experiments ORB_FREAK)
    2013-05-07 15:21:25下载
    积分:1
  • huatesetu
    说明:  利用vc画图,特点是可以画一些有特殊效果的几何图像(use vc drawing, painting features can be some special effects of geometric images)
    2006-04-14 11:39:57下载
    积分:1
  • dtlvbo
    零相位带通滤波源代码,可以对信号进行滤波处理提高信噪比.(Zero-phase band-pass filtering the source code, you can filter the signal-noise ratio improve treatment.)
    2021-03-26 17:09:13下载
    积分:1
  • Geometry(C)
    计算几何(C描述)第二版教材的配套程序,用C语言实现了本书的主要算法.(Computational geometry (C described) in the second edition of materials matching procedures, using C language to achieve the book)
    2008-08-07 10:48:13下载
    积分:1
  • 696518资源总数
  • 104269会员总数
  • 42今日下载