Description: 数字图像处理中的平滑和锐化（边缘检测）。包括1、添加椒盐、高斯噪声。2对噪声污染的图像分别使用邻域平均法、中值滤波法、K邻近平均法进行平滑。3对一幅图像利用Roberts梯度法、Sobel算子和拉普拉斯算子进行锐化，并比较结果。附处理源图像和处理结果截图。
-Digital image processing smoothing and sharpening (edge detection). Including 1, add salt and pepper, Gaussian noise. Two pairs of images were used noise pollution neighborhood average, median filtering, K close to the average method to smooth. 3 on an image using Roberts gradient method, Sobel operator and Laplacian sharpening, and compare the results. Laws dealing with the source image capture and processing results. Platform: |
Size: 281600 |
Author:刘雨相 |
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Description: 可以打开大部分图片格式包括bmp、jpg等，并对其进行图片的基本处理包括翻转、镜像、傅里叶变换、直方图统计及均衡化、锐化、柔化、加椒盐或高斯噪声、中值滤波、Sobel边缘检测、高斯边缘检测、灰度阀值边缘检测、区域生长、旋转、缩放等操作-Can open most image formats including bmp, jpg, etc., and its basic image processing including flip, mirror, Fourier transform, histogram equalization statistics and, sharpen, soften, add salt and pepper or gaussian noise , median filtering, Sobel edge detection, Gaussian edge detection, gray level threshold edge detection, region growing, rotation, scaling and other operations Platform: |
Size: 365568 |
Author:wangyang |
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Description:
第一章作业：
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。
1。打开一幅图像，添加椒盐、高斯噪声，然后使用邻域平均法、中值滤波法、K邻近平均法进行平滑。
2。打开一幅图像，利用Roberts梯度法、Sobel算子和拉普拉斯算子进行锐化，并比较结果。
第五章作业
编写一个程序，对输入的图像进行哈夫曼编码，显示原图像的熵、编码后的平均码字长度、并能够根据编码重建出图像。
在图像中生成一个矩形，然后用模板匹配法找出矩形位置。使用SSDA或改进SSDA法。
第五章作业
编写一个程序，对输入的图像进行哈夫曼编码，显示原图像的熵、编码后的平均码字长度、并能够根据编码重建出图像。
-Chapter operations: in C or VC, VB, Matlab or other languages to complete the following experiment: 1) open a BMP file 2) the gray value of its local area to change 3) Save as a new requirements display BMP files the original BMP image and the new BMP image. 1. Open an image, add salt and pepper, Gaussian noise, and then use the neighborhood average, median filtering, K adjacent average smoothing. 2. Open the image using the Roberts gradient, Sobel operator and Laplacian sharpening, and compare the results. Chapter operations to write a program, the input image Huffman, display the original image entropy encoded average code word length, and be able to reconstruct the image according to encoding. Generate a rectangle in the image, then use template matching to identify position of the rectangle. Or improved using the SSDA SSDA method. Chapter operations to write a program, the input image Huffman, display the original image entropy encoded average code word length, and be Platform: |
Size: 6144 |
Author:杨智雄 |
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Description: 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理。
作业五（一）
要求
打开一幅图像，添加椒盐、高斯噪声，然后使用邻域平均法、中值滤波法、K邻近平均法进行平滑。
作业五（二）
要求
打开一幅图像，利用Roberts梯度法、Sobel算子和拉普拉斯算子进行锐化，并比较结果。
-Operating a
Requirements
C or VC, VB, Matlab or any other language, complete the following experiment:
1) Open a BMP file
2) the gray value of its local area change
3) Save as a new BMP file
Requirement that the original BMP images and BMP images.
Task 2
Requirements
A programming image Fourier high-pass, low pass filtering.
Try Fourier compression.
Assignment 3
Requirements
Programming to achieve high-pass, low pass filtering, image DCT. And compared with the Fourier transform.
Fourth Assignment
Requirements
Looking for an exposure less than the gray (or color) image to be processed in accordance with the histogram equalization method.
Assignment 5 (a)
Requirements
Open an image, add salt and pepper, Gaussian noise, and then use the neighborhood average, median filter, K, close to the average method of smoothing.
Assignment 5 (b)
Requirements
Open an image, use the gradient method of Roberts, Sobel operator and Laplacian sharpening, and compare the results. Platform: |
Size: 4187136 |
Author:李海宁 |
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Description: 现有三幅图像，图像1是包装瓶中的气泡图片，图像2是印刷电路板的元器件焊接质量检查图，图像3是封装后的胶囊状药品。实验要求从这三幅图片中，
1. 选择一副图像，并叠加零均值高斯噪声，分别利用均值滤波和中值滤波器对该有噪图像进行滤波，显示滤波后的图像，比较两滤波器的滤波效果。
2. 选择一副图像，并叠加椒盐噪声，分别用均值滤波器，中值滤波器对该图像进行滤波，比较滤波器的滤波效果。
3. 选择一幅图像，分别利用Laplacian算子和Sobel算子对图像进行锐化操作，比较锐化的效果。-Three images, image packaging bottle of bubbles picture, image 2 printed circuit board components, welding quality inspection, the image is packaged in capsule form drugs. Experiments from these three pictures, select an image, and superimposed on the zero-mean Gaussian noise, respectively, the mean filter and median filter the noisy image filtering, display the image after the filtering, comparison of two filtering filtering effect of the device. 2 Select an image, and superimposed on the salt and pepper noise, respectively, the mean filter, median filter to the image filter, more filter filtering effect. Select the image, respectively, using the Laplacian operator and Sobel operator to image sharpening operation, more sharpening effect. Platform: |
Size: 199680 |
Author:李新文 |
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Description: 1 打开一个BMP文件，将其局部区域的灰度值进行改变，另存为一个新的BMP文件，要求显示出原BMP图像和新BMP图像。
2．编程实现图像傅立叶高通、低通滤波。
3.打开一幅图像，添加椒盐、高斯噪声，然后使用邻域平均法、中值滤波法、K邻近平均法进行平滑
4.打开一幅图像，利用Roberts梯度法、Sobel算子和拉普拉斯算子进行锐化，并比较结果。
5.编写一个程序，对输入的图像进行哈夫曼编码，显示原图像的熵、编码后的平均码字长度、并能够根据编码重建出图像
6.在图像中生成一个矩形，然后用模板匹配法找出矩形位置。使用SSDA或改进的SSDA法。-1) open a BMP file, change the gray values of its local area, and save it as a BMP file, the request shows the original BMP images and BMP images.
2. Programming image Fourier high-pass, low-pass filtering.
3 Open an image, add salt and pepper, Gaussian noise, and then use the neighborhood average, median filter, K adjacent average method for smoothing
4 Open an image using the Roberts gradient method, Sobel operators and Laplacian sharpening for, and compare the results.
5 to write a program, Huffman coding of the input image, the display of the original image entropy, and the average code word length of the encoded, and be able to reconstruct the image according to the coding
6. Generate a rectangle in the image, and then use the template matching method to identify the position of the rectangle. Using SSDA or improved SSDA method. Platform: |
Size: 909312 |
Author:fei |
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Description: 文件中包含各种图像处理源代码，包括二值化处理的源代码，对图像进行直方图均衡处理的源代码，对图像进行中值滤波处理（图像复原）的源代码，对图像进行均值滤波处理（图像复原）的源代码对图像进行对角镜像处理（几何变换）的源代码，对图像进行离散余弦变换处理（图像变换）的源代码，对图像进行傅立叶变换处理（图像变换）的源代码，对图像进行高斯模糊处理（图像复原）的源代码，在图像中加入随机噪声的源代码，对图像进行水平镜像处理（几何变换）的源代码，利用LoG边缘算子法对图像进行边缘提取的源代码，利用Prewitte边缘算子法对图像进行边缘提取的源代码，利用Roberts边缘算子法对图像进行边缘提取的源代码，利用Sobel边缘算子法对图像进行边缘提取的源代码，对图像进行沃尔什变换处理（图像变换）的源代码， 对图像进行垂直镜像处理（几何变换）的源代码等各种图像处理程序代码。-File contains a variety of image processing source code, including the binarization processing of the source code, the source code of the image histogram equalization processing median filter processing (image restored), the image of the source code, the image mean filterprocessing (image restoration) of the source code to perform diagonal mirror treatment (geometric transformation) of the source code of the image, the image of the source code of the discrete cosine transform processing (image conversion), the image source of the Fourier transform processing (image conversion)code,the image the Gaussian blur processing (image restoration) source code, source code, by adding random noise in the image, the image horizontally mirrored (geometric transformation) source code, LoG edge operator method to the edge of the imageextracted source code, operator method using Prewitte edges on the image edge extracted source code, Roberts edge operator method for image edge extracted source code, u Platform: |
Size: 18432 |
Author:nimizi |
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Description: 另存为一个新的BMP文件，要求显示出原BMP图像和新BMP图像。 2．编程实现图像傅立叶高通、低通滤波。 3.打开一幅图像，添加椒盐、高斯噪声，然后使用邻域平均法、中值滤波法、K邻近平均法进行平滑 4.打开一幅图像，利用Roberts梯度法、Sobel算子和拉普拉斯算子进行锐化，并比较结果。 5.编写一个程序，对输入的图像进行哈夫曼编码，显示原图像的熵、编码后的平均码字长度、并能够根据编码重建出图像 6.在图像中生成一个矩形，然后用模板匹配法找出矩形位置。使用SSDA或改进的SSDA法-ave as a new BMP file to show the original BMP image and new BMP images. 2. The programming to realize image Fourier high-pass and low-pass filtering. 3. Open an image, add salt and pepper, gaussian noise, and then use the neighborhood averaging method, median filtering, K neighborhood average method for smoothing 4. Open an image, using the method of the Roberts gradient, Sobel operator and Laplacian sharpening, and compare the results. 5. Write a program to input image Huffman encoding, and display of original image entropy, encoded average code word length, and can according to the code 6. Platform: |
Size: 1024 |
Author:方芳 |
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Description: （1）读取一幅图像，添加高斯、椒盐噪声，用邻域平均法、中值滤波法和K邻近平均法处理。
（2）读取一幅图像，利用Roberts梯度法、Sobel算子和拉普拉斯算子进行锐化，并比较结果。-1.read an image, add a Gaussian/salt or pepper noise, then process with the neighborhood average/median filtering or K N nearest average law method.Output processed images.
2.Read an image, sharpen it with the Roberts gradient method , Sobel operator and Laplacian operator, output the results. Platform: |
Size: 1024 |
Author:seasonflow |
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Description: 为了解决测地线活动轮廓模型分割有凹边界的对象时，将可能陷入非理想局部极小的缺点，自适应测地线活动轮廓模型被提出。新的模型可以通过添加在原始模型的加速度项调整曲线基于曲线和图像的梯度的曲率的演变速度。此外，为了消除噪声或伪边缘的影响，新的前处理Sobel算子结合高斯滤波器和测地线活动轮廓模型梯度的计算方法。-In order to solve the shortcoming of Geodesic Active Contour model that would possibly sink into the non-ideal local minimum when segmenting the objects having concave boundary, an adaptive Geodesic Active Contour model was presented. The new model could adjust the evolution speed of curve based on the curvature of curve and gradient of image by adding an acceleration item in the original model. Moreover, in order to eliminate the influence of noise or false edge, a new pre-process Sobel operator combined the Gaussian filter and calculation of gradient of Geodesic Active Contour model is presented. Platform: |
Size: 38912 |
Author:毛巴马 |
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Description: 本程序主要实现暗背景下含高斯噪声的光斑滤除噪声，实现光斑中心提取。采用了sobel算子和梯度倒数加权滤噪、最大类间方差法（Otsu）确定阈值、质心法提取光斑中心坐标。-The program is mainly realized under a dark background Gaussian noise spot containing noise filtering, to achieve spot center extraction. Using sobel operator and gradient inverse weighting filter noise, Otsu method (Otsu) to determine the threshold, the center coordinates of the spot centroid extraction. Platform: |
Size: 1024 |
Author:张强 |
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Description:
1、图像中值滤波实验
①用imnoise函数在图像’lena.bmp’中值添加椒盐噪声，观测结果
②用medfilt2函数对含噪声图像中值滤波。
2、使用fspecial函数生成均值、Prewitt、Sobel、Laplacian滤波模板，再用filter2函数对‘cameraman.tif’图像进行空域滤波，显示滤波结果。
3、设计高斯低通和高通频域滤波器，对‘phantom.bmp’图像进行频域滤波，显示滤波结果。然后改变滤波器截止频率，观察对结果的影响。
4、用imdilate, imerode, imopen, imclose函数对‘326.bmp’进行膨胀，腐蚀，开启，闭合运算。（结构单元均取3*3矩形模板）。-1, image filtering experiment ① with imnoise function adds salt and pepper noise image ' lena.bmp' in value, with observations ② medfilt2 function noisy image filtering. 2, using the function generation fspecial mean, Prewitt, Sobel, Laplacian filter template, and then filter2 function ' cameraman.tif' image spatial filtering, display filtering results. 3, the design of Gaussian low-pass and high-pass filter in the frequency domain, for ' phantom.bmp' image frequency domain filtering, filtering results show. Then change the filter cutoff frequency, observe the effect on the results. 4, with imdilate, imerode, imopen, imclose function ' 326.bmp' is expanded, erosion, opening and closing operations. (Structural units were taken 3* 3 rectangle template). Platform: |
Size: 116736 |
Author:郭亚周 |
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Description: 1-1、图象的灰度变换
对图象p1-03实施灰度平方根变换
1， 要求：显示变换前后2幅图象和2幅直方图，变换参数自行设定。
1-2、空域平滑
对图象p1-03施加高斯噪声和椒盐噪声并实施梯度倒数加权平滑法
要求：显示变换前后2幅图象，利用方差评价空域平滑的效果。
1-3、空间锐化
根据Sobel算子，按照公式4.3.8和公式4.3.9对图象p1-03实施空间锐化
要求：显示变换前后2幅图象。(1-1. Gray transformation of image
The square root transformation of image p1-03 was implemented
1. Requirements: show the two images and two histogram before and after the transformation, and the transformation parameters are set by themselves.
1-2. The airspace is smooth
The gaussian noise and pretzel-salt noise were applied to the image p1-03 and the gradient reciprocal weighted smoothing method was implemented
Requirements: show the two images before and after the transformation and use the variance to evaluate the smooth effect of the airspace.
1-3 space sharpen
According to Sobel operator, the space sharpening of image p1-03 was implemented according to formula 4.3.8 and formula 4.3.9
Requirements: show the two images before and after the transformation.) Platform: |
Size: 199680 |
Author:LIMBO2K
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Search - Gaussian noise sobel