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Description: L3_1.m: 純量量化器的設計(程式)
L3_2.m: 量化造成的假輪廓(程式)
L3_3.m: 向量量化器之碼簿的產生(程式)
L3_4.m: 利用LBG訓練三個不同大小與維度的碼簿並分別進行VQ(程式)
gau.m: ML量化器設計中分母的計算式(函式)
gau1.m: ML量化器設計中分子的計算式(函式)
LBG.m: LBG訓練法(函式)
quantize.m:高斯機率密度函數的非均勻量化(函式)
VQ.m: 向量量化(函式)
L3_2.bmp: 影像檔
lena.mat: Matlab的矩陣變數檔
-L3_1.m: scalar quantizer design (the program) L3_2.m: quantitative result of the false contour (the program) L3_3.m: Vector quantizer code book of the generation (the program) L3_4.m: training in the use of LBG three different size and dimension of the code book and separate VQ (program) gau.m: ML quantizer design in the denominator of the calculation formula (function) gau1.m: ML quantizer design in the calculation of molecule-type ( function) LBG.m: LBG training method (function) quantize.m: Gaussian probability density function of the non-uniform quantization (function) VQ.m: vector quantization (function) L3_2.bmp: image file lena.mat: Matlab matrix variable file
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Size: 191488 |
Author: Oki |
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Description: 小波均匀量化huffman熵编码图像压缩程序：分析对象Lena.bmp-Uniform quantization of wavelet image compression huffman entropy coding procedure: analysis of object Lena.bmp
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Size: 2048 |
Author: yanhaifeixue |
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Description: 数字图像处理中非常有用的一些图片包括LENA等.-Digital image processing is very useful in a number of pictures, including LENA, BARBARA such.
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Size: 2061312 |
Author: hide |
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Description: fractal image compression of gray scale images....
only works for square images...
try with lena.bmp a gray scale one....
good compression ratio acheived
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Size: 4096 |
Author: Koushik |
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Description: Canny算子提取边缘，matlab进行图像处理，图像锐化-Canny edge extraction operator, matlab image processing, image enhancement
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Size: 282624 |
Author: 图像处理 |
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Description: matlab 小波零树图像压缩程序，分析对象：lena.bmp -matlab wavelet zero-tree image compression process, analyze the object: lena.bmp
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Size: 23552 |
Author: anrold88 |
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Description: 利用Matlab编程实现对lena.bmp灰度图象进行QF=50和QF=40的压缩和解压缩，比较二者的PSNR，并且利用霍夫曼编码模拟信道中传输图象。通过了Matlab2009A测试。-Using Matlab program to compress and decompress the gray image Lena.bmp at QF = 50 and QF = 40,as well as comparing the result of two situation.Then using Huffman coding analog channels transmitted images. Adopted Matlab2009A test.
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Size: 2048 |
Author: Alex |
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Description: 用matlab实现lena。bmp图像的直方图均衡化-Using matlab to achieve lena. bmp image histogram equalization
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Size: 1024 |
Author: 内莫 |
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Description: 本程序是用matlab编写的一段代码 主要是实现图像的中值滤波 采用的图像是lena.bmp 系统给出的图像 -This procedure is used Matlab prepared to use a section of code is mainly to achieve the image median filter used in image is the lena.bmp system given image
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Size: 51200 |
Author: lucy |
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Description: For a 24-bit color image (Lena.bmp), statistics all used colors in this image, design the median-cut algorithm to generate a lookup table. And convert the 24-color image to 8-bit index image, compare the difference between them.
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Size: 132096 |
Author: 李琰 |
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Description: 练习读入lena.bmp图像，在workspace中查看图像，显示图像，并将此图像存储在C盘根目录下，命名为1.bmp。
读入两幅尺寸相同的图像(lena.bmp和sky.bmp)，做加法，实现双曝光的效果。
读入两幅尺寸相同的图像(2.bmp和2background.bmp)，做减法，实现减背景效果。
读入lena.bmp图像，编写一个模板，此模板是以图像中心为圆心，64像素为半径的圆内为1，其他位置为0，以此模板乘以读入的lena图像，显示结果。
用图像除法完成减背景操作（ 5.bmp和5background.bmp运用公式：f=g ÷ b х m ）。
已知信号整数时刻1至10秒的幅值为[10,25,33,17,50,5,76,17,78,80]，用线性插值方法，求[1.3,1.77,2.58,3.85,9.65]这5个时刻的信号幅值。（要自己写函数完成此题目，不要直接用matlab现成的插值函数）。
利用help文档，自学imrotate、imresize和imcrop函数的用法-Practice reading into lena.bmp images, view the image in the workspace, display images, and the images are stored in the root directory of C named 1.bmp.
Read into two of the same size the image (lena.bmp and sky.bmp) do addition, to achieve the effect of double exposure.
Read into the two dimensions same of images (2.bmp 2background.bmp), and subtract to achieve the effect of background subtraction.
The image reads lena.bmp write a template, this template is the center of the image to the center and 64 pixels for the radius of the circle is 1 other location, this template is multiplied by lena image reads and displays the results.
Image division completed less background operation (5.bmp, and 5background.bmp use of the formula: f = the g ÷ b х m).
The known signal integer time of 1-10 seconds amplitude [10,25,33,17,50,5,76,17,78,80 using a linear interpolation method,, [1.3,1.77,2.58,3.85, , 9.65] this is five times the signal amplitude. (To write your own functions to complete t
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Size: 2048 |
Author: 单车少年 |
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Description: 二维离散小波变换(Mallat快速算法)对图像进行二维离散小波变换, 变换级数大于等于3级,然后进行阈值化处理(阈值约为10左右),再统计系数中0的个数（百分比表示）并进行重构, 最后计算重构图像的峰值信噪比(PSNR).
数据：灰度图像lena.bmp或其它图像, 滤波器系数可以调用matlab中的wfilters函数获得, wfilters函数的使用请在matlab中help wfilters.-Two-dimensional discrete wavelet transform (Mallat fast algorithm) two-dimensional discrete wavelet transform image transformed series is greater than or equal to 3, and then processing thresholding (threshold of about 10 or so), the number of re statistical coefficient 0 ( reconstruct the final calculation of the peak signal-to-noise ratio (PSNR) of the reconstructed image data: the grayscale image lena.bmp or other images, the filter coefficients can call matlab in wfilters function to obtain, wfilters function, expressed as a percentage) in matlab help wfilters.
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Size: 913408 |
Author: 坐听晚风赏晚霞 |
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Description: matlab code entropy about lena bmp for image entropy
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Size: 4096 |
Author: aytekin |
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Description: 基于MATLAB的图形降噪,典型的BMP图像文件由三部分组成,位图文件头数据结构-Image denoising base on matlab,we selected the criteria image of Lena, add Gaussian noise and impulse noise with different strength
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Size: 3167232 |
Author: 郑涛 |
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