Description: Sobel算子：是一种空域微分算子，可以通过它锐化图象。
将图象分块(8*8),作DCT变换,并作IDCT：DCT是一种可分离图象变换，用来图象压缩编码。-Sobel Operator : airspace is a differential operator, through its image sharpening. Image will block (8* 8), for the DCT and IDCT for : DCT is a separable Image Transform, used to image compression coding. Platform: |
Size: 2048 |
Author:xuhua |
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Description: 基于Sobel算子.该方法将图像划分成预先设定大小的网格，在两个尺度上对图像进行分析，完成图像的边缘检测。首先用Sobel算子求得图像边缘，依据网格内含有边缘像素的数目以及连通情况将不同的网格分别处理。 然后以网格为数据单元，在较大尺度上运用Sobel算子得到图像边缘。最后通过设定数据的优先级和使用形态学的方法合并两次计算边缘的结果。-Based on the Sobel operator. This method is an image divided into pre-set the size of grid, in the two scales of image analysis, image edge detection. First of all, seek to use Sobel edge operator, based on the edge of the grid contains the number of pixels as well as the connectivity will be a different deal with the grid, respectively. And then to the grid for the data unit, in the larger scale use Sobel edge operator. Finally the data by setting the priority and use of morphological methods of calculation of the merger of two marginal results. Platform: |
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Author:jdshgufi |
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Description: 五种边缘检测算子的实现，函数具有很好的通用性，凡是能够得到只想图像像素区指针的情况都可以使用。
配合我上传的那个opentrim使用更好，这是一个bmp全色深操作类，里边还集成了一些其他的机器视觉算法。
对图像进行高斯——拉普拉斯算子的边缘检测
对图像进行拉普拉斯算子的边缘检测
对图像进行罗伯特交叉算子的边缘检测
对图像进行蒲瑞维特算子的边缘检测
对图像进行索贝尔算子的边缘检测-5 kinds of edge detection operator to achieve an excellent general-purpose function, and those who just want to image pixels can be indicators of the situation in the district can be used. I upload that with the use of better opentrim, this is a bmp type operation panchromatic deep inside also integrates a number of other machine vision algorithms. Gaussian images- Laplacian edge detection of image Laplacian edge detection of images of Robert crossover operator on the image edge detection operator Po Ray White of the edge detection of image Sobel operator for edge detection Platform: |
Size: 2048 |
Author:尧思齐 |
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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: |
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Author:刘雨相 |
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Description: Based on this one-dimensional analysis, the theory can be carried over to two-dimensions as long as there is an accurate approximation to calculate the derivative of a two-dimensional image. The Sobel operator performs a 2-D spatial gradient measurement on an image. Typically it is used to find the approximate absolute gradient magnitude at each point in an input grayscale image. The Sobel edge detector uses a pair of 3x3 convolution masks, one estimating the gradient in the x-direction (columns) and the other estimating the gradient in the y-direction (rows). A convolution mask is usually much smaller than the actual image. As a result, the mask is slid over the image, manipulating a square of pixels at a time. Platform: |
Size: 2048 |
Author:siva |
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Description: Based on this one-dimensional analysis, the theory can be carried over to two-dimensions as long as there is an accurate approximation to calculate the derivative of a two-dimensional image. The Sobel operator performs a 2-D spatial gradient measurement on an image. Typically it is used to find the approximate absolute gradient magnitude at each point in an input grayscale image. The Sobel edge detector uses a pair of 3x3 convolution masks, one estimating the gradient in the x-direction (columns) and the other estimating the gradient in the y-direction (rows). A convolution mask is usually much smaller than the actual image. As a result, the mask is slid over the image, manipulating a square of pixels at a time. Platform: |
Size: 1024 |
Author:siva |
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Description: 提出一种在噪声条件下将中值滤波与Sobel、Canny算子相结合进行图像边缘检测的方法。首先，采用中值滤波对图像进
行平滑处理，再利用Sobel、Canny算子检测图像边缘。仿真实验表明。该方法对图像边缘检测精度较高，抗噪声性能强，可
提高图像边缘检测效果。-This article proposed an image edge detection method based on the median value filter，Sobel and
Canny Operator under the noise condition．First，use the median value filter to smooth the image，and
then use Sobel and Ganny Operator to detect the image edge．The simulation experiment demonstrates that
this method will increase the precision of the image edge detection，enhance the anti—nose performance，
thus improving the effect of image edge detection． Platform: |
Size: 238592 |
Author:王文 |
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Description: 本算法是在经典Sobel算子基础上,结合汽车本身的实际情况,增加了6个方向模板,同时利用基于L2
范数的各同性扩散去噪模型消除噪声,最终得出汽车轮廓图。仿真结果表明:该算法对汽车图像的噪声干扰
有较强的抑制能力,汽车轮廓提取定位更准,精度更高,图像更清晰。-This algorithm is the classical Sobel operator on the basis of the actual situation with the car itself, an increase of 6 the direction of the template, while based on the L2
Norm homosexual diffusion denoising model to eliminate the noise, and ultimately come to the vehicle contour. Simulation results show that: the noise of the algorithm on the car image
Strong inhibition of the vehicle contour extraction positioning more accurate, more precise, clearer images. Platform: |
Size: 1054720 |
Author:李 |
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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: Fourier变换在图像的处理上的有重要的作用，Sobel算子，Prewitt算子,Roberts算子，Laplace算子和Canny算子运算也是常用的图像边缘提取方法。-Fourier transform in image processing on an important role, Sobel operator, Prewitt operator, Roberts operator, Laplace operator and Canny operator op is also commonly used image edge extraction method. Platform: |
Size: 1024 |
Author:董懂 |
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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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