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Description: 处理图像lena.bmp,并画出各图像的灰度层次的分布图，并对256位和16位信源数据进行霍夫曼编码-lena.bmp image processing and paint images of the gray level of distribution map as well as 256-bit and 16-bit data source coding Hoffman
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Size: 73728 |
Author: 姚艳红 |
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Description: 2、 转换为灰度图像。
这个算法是依照彩色图转化为灰度图像的方式：
灰度值 = 0.3*R+0.59*G+0.11*B
用两重循环遍历截取的图片，对于每一个象素点，用MFC的函数取得其COLORREF形式的颜色值，从中分解出R、G、B三种颜色的值，计算出对应的灰度值后，赋给R、G、B即可。完成遍历后刷新图片就可以看到转换后的灰度图像。
-2, converted to grayscale images. This algorithm are in accordance with the color map into a gray image of the way: gray value = 0.3* R+0.59* G+0.11* B with double cycle traversal intercepted picture, for each pixel, using MFC function obtained their forms of COLORREF color value, from decomposition of the R, G, B three color values, calculate the corresponding gray-scale value, assigned to R, G, B can be. After the completion of traversal can be seen on the picture to refresh the converted gray image.
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Size: 1188864 |
Author: 龙胆 |
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Description: 图像处理中常用的标准灰度图像（bmp格式），包括baboon,boat,lena,peppers等-Standard gray image-it commonly used in image processing (bmp format), including the baboon, boat, lena, peppers, etc.
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Size: 2418688 |
Author: 鱼 |
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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: 1、打开lena.bmp，点击线性变换即可。
2、打开NoisyImage.bmp，点击中值滤波即可。或者也可以点击理想低通
3、打开lady.bmp，点击获取图片数据；在打开scene.bmp，点击融合
4、打开lena.bmp，点击获取灰度图片数据，再打开lena_color.bmp，点击组合即可。
-1, open lena.bmp, clicking linear transformation can be. 2, open NoisyImage.bmp, you can click on median filtering. Or you can click on the ideal low-pass 3, open lady.bmp, click for image data the Open scene.bmp, Click Fusion 4, open lena.bmp, click for grayscale image data, and then open the lena_color.bmp, click combination that be.
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Size: 180224 |
Author: 王敬 |
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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: 针对lena图像求取图像R,G，B三个通道的信息熵，条件熵等-Lena image strike image for R, G, B three channels of information entropy, conditional entropy, etc.
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Size: 1024 |
Author: 李文 |
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Description: 任务1。一维测试信号的FFT
计算和可视化长度为B=64的下列测试信号的傅立叶变换的幅度：
任务2。二维测试信号的FFT。计算和可视化尺寸为128*128的下列测试信号的傅立叶变换的幅度：
任务3。图像的FFT 在以下处理之后，计算下列图像“Lena”的傅立叶变换的幅度并将其可视化：1)向测试图像添加一个加性高斯噪声(选择您选择的噪声的参数)。 2)使用大小为3*3和5*5的盒式滤波器对测试图像进行平滑。 3)应用Sobel梯度掩模寻找梯度图像的x和y分量。 4)应用拉普拉斯口罩。比较处理前后图像的FFT幅度。对原始图像单独地而不是顺序地应用处理。
任务4。测试图像“Lena”的频域图像滤波
1)计算FFT，在频域应用理想低通滤波器（LPF），进行逆FFT，显示恢复图像。根据您的选择为LPF选择截止频率
2)计算FFT，在频域应用理想高通滤波器，进行逆FFT，显示恢复图像。使用与LPF相同的截止频率
3)求出经过低通和高通理想滤波后的复原图像之和。将图像与原始图像进行比较。(task1
task2
task3
task4)
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Size: 2048 |
Author: ZZZZhao35 |
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