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MatLab实现对灰度图像的哈夫曼编码。
给出每个灰度级的编码。
并计算压缩比。-MatLab implementation of Huffman coding of gray image. Each gray-scale coding is given. And calculate the compression ratio.
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采用matlab编程,对图像处理中的几种压缩算法,做出实践。-Using matlab programming for image processing of several compression algorithms, and make practice.
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matlab编的对图像进行错切,压缩包中有一个实例-matlab series image shear, compression packages are an example of
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用matlab编写的程序集合,主要是完成括亮度变换、线性和非线性空间滤波、图像复原与配准、彩色图像处理、小波、图像数据压缩、形态学图像处理、识别-Matlab procedures used to prepare the collection, mainly including brightness achieve transformation, linear and nonlinear spatial filtering, image restoration and registration,
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用计算机进行数字图像处理,使用matlab环境,对图像进行增强,平滑与锐化,分割,变换,压缩与编码,是平常实验的好选择。-Using computer digital image processing, the use of matlab environment, enhance the image, smoothing and sharpening, segmentation, transform, compression and encoding, is usually a good cho
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also using vector quantization on image by using matlab program to achieve a good compression ratio
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作业一
要求
用C语言或者VC,VB,Matlab或其他语言完成如下实验:
1)打开一个BMP文件
2)将其局部区域的灰度值进行改变
3)另存为一个新的BMP文件
要求显示出原BMP图像和新BMP图像。
作业二
要求
1. 编程实现图像傅立叶高通、低通滤波。
2. 尝试傅立叶压缩。
作业三
要求
编程实现图像DCT高通、低通滤波。并与傅里叶变换比较。
作业四
要求
找一幅曝光不足的灰度(或彩色)图像,按照直方图均衡化方法进行处
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MATLAB通过DCT对图像进行区域编码以及门限编码压缩-MATLAB through the DCT to do image region code and threshold coding compression
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基于matlab的JPEG压缩源码,含压缩与解压缩,还有与原图的对比测试。-Matlab-based JPEG compression source, including compression and decompression, as well as comparison with the original image.
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图像处理MATLAB程序包括灰色二进制压缩和其他一些方法和其他一些
-MATLAB image processing procedures including gray binary compression
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此代码是对JPEG图像二次压缩所产生的JPEGGhost进行的Matlab仿真。适合图像取证初学者学习。-This code is a JPEG image generated by the secondary compression JPEGGhost Matlab simulation. Suitable for image forensics for beginners to learn.
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基于DWT的彩色图像数字水印的matlab实现水印的嵌入与提取,能抵抗噪声,剪切,压缩攻击-Based on DWT color image digital watermark matlab watermarking embedding and extracting, can resist noise, shear and compression attack
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基于DWT的彩色图像数字水印的matlab实现水印的嵌入与提取,并对其进行arnold置乱,能抵抗噪声,剪切,压缩攻击-Based on DWT color image digital watermark matlab watermarking embedding and extracting, and carries on the Arnold scrambling, can resist noise, shear and compression attack
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1了解离散余弦正变换和逆变换的原理;
2理解离散余弦变换系数的特点;
3了解离散余弦变换在图像数据压缩中的应用;
4通过本实验掌握利用MATLAB编程实现数字图像的余弦变换;
-1 for the discrete cosine transform and inverse transform principle understand the characteristics of the discrete cosine transform coefficients 3 for
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根据JPEG压缩编码的基本压缩原理编写JPEG仿真程序,利用MATLAB软件对程序进行运行调试,验证了JPEG压缩编码算法的可行性。通过比对输出图像压缩前后实际效果,探讨压缩比,峰值信噪比等评价图像数据压缩程度及压缩质量的关键参数,对JPEG压缩编码算法的实用性和优越性进行了研究。- I have JPEG compression in-depth study on the basic principles of image data compression based on JPEG emul
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本代码由matlab语言编写,实现了jpeg算法,主要为了说明基本的JPEG功能。经过DCT变化,量化,进行DPCM编码,然后之字形扫描AC系数,进行行程(LZW)编码。 显示原始图象和经编码解码后的图象,显示压缩比,并计算均方根误差。-The code consists of matlab language, to achieve a jpeg algorithm, mainly to illustrate the basic functionality of JPEG. After chan
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实现图像JPEG2000格式的压缩和解压(Realization of compression and decompression of image JPEG2000 format)
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MATLAB下图像处理-图像压缩,DCT变换及复原(Image processing - image compression, DCT transformation and restoration under MATLAB)
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本次变成是基于matlab的有关图像压缩的仿真程序,希望能帮到大家(This is a simulation program of image compression based on MATLAB. I hope to help you.)
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对于双基地SAR,使用BP算法进行成像,展示场景、回波信号、距离压缩后以及最后成像的图像。(For Bistatic SAR, BP algorithm is used to image the scene, echo signal, range compression and the final image.)
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