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Description: 对1帧图像进行8方向的sobel算子提取边缘，原始图像格式是BMP-right image for an eight direction of the pixel edge detection operator, is the original image BMP format
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Size: 263485 |
Author: 婷婷 |
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Description: 对1帧图像进行8方向的sobel算子提取边缘，原始图像格式是BMP-right image for an eight direction of the pixel edge detection operator, is the original image BMP format
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Size: 2315264 |
Author: 婷婷 |
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Description: 使用prewitt算子和sobel算子分别在垂直和水平方向进行检测，生成4幅分割图像-Using sobel operator and Prewitt operator, respectively, in the vertical and horizontal direction detection, image segmentation to generate 4
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Size: 3072 |
Author: 萧然 |
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Description: 一种基于多项式插值改进的亚像素细分算法
文中对传统的sobel进行了8个方向的扩展-Based on polynomial interpolation to improve the sub-pixel subdivision algorithm for the text of the traditional sobel carried out the direction of the expansion of 8
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Size: 192512 |
Author: 李文 |
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Description: 8方向的sobel边缘提取算法，自己用VC编的-8 direction sobel edge detection algorithm, itself compiled with VC
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Size: 3877888 |
Author: forlans |
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Description: 含有了图像处理中一些经典和常用的图像处理算法，如：灰度图像处理，图像增强，图像变换，形态学图像处理。其中灰度图像处理包含三个算法：彩色图转灰度图，灰度图直方图，直方图均衡化；图像增强含有：增加椒盐噪声，中值滤波，sobel算子边缘提取(水平方向和垂直方向一起考虑)，laplace算子边缘提取，模糊，锐化；图像变换含有：haar小波变换，RGB转HSV颜色空间。形态学图像处理含腐蚀，膨胀，开操作，闭操作。-Contains some of the classic image processing and image processing algorithms commonly used, such as: gray-scale image processing, image enhancement, image transformations, morphological image processing. One gray-scale image processing consists of three algorithms: color map turn gray level, gray level histogram, histogram equalization image enhancement includes: Increasing Salt and pepper noise, median filtering, sobel edge detection operator (horizontal and vertical the direction considered together), laplace operator edge detection, blur, sharpen image transformation includes: haar wavelet transform, RGB switch to HSV color space. Morphological image processing, including corrosion, swelling, open operation, closed operation.
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Size: 317440 |
Author: 孙亚新 |
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Description: This Matlab code shows how to perform edge detection by Sobel method in horizontal & vertical direction and the effect of increasing and decreasing the threshold value . Besides, you can try to perform the edge detection by other method in the same ways such as Prewitt , Roberts , Canny and others.-This Matlab code shows how to perform edge detection by Sobel method in horizontal & vertical direction and the effect of increasing and decreasing the threshold value . Besides, you can try to perform the edge detection by other method in the same ways such as Prewitt , Roberts , Canny and others.
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Size: 107520 |
Author: Tan |
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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.
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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.
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Size: 1024 |
Author: siva |
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Description: 主要是计算机专业研究生，图像处理方向的课程作业，实现图像处理，比如说用到的sobel算子，拉普拉斯算子的实现！-Mainly computer science graduate course work in the direction of image processing, Image processing, for example, the sobel operator is used, the realization of the Laplacian!
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Size: 1603584 |
Author: gengboting |
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Description: Sobel算子就是一种基于方向导数掩模求卷积的方法。通过边缘检测算子可以检测到每个像素的领域并对灰度变化率进行量化，也包括方向的确定。该代码是基于sobel算法的检测程序。-Sobel operator is a directional derivative mask and convolution methods. To each pixel and gray level in the field rate of change can be detected through the edge detection operator to quantify, including direction. The code is based on sobel algorithm testing procedures.
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Size: 1024 |
Author: 董凯凯 |
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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.
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Size: 1054720 |
Author: 李 |
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Description: 边缘是图像中最重要的信息，是模式识别、图像分
割以及场景分析的重要基础。边缘检测是图像处理领
域一项重要的技术和任务。图像中边缘通常解释为灰
度值有突然改变，像素梯度具有局部极大值。很多经
典的边缘检测算子如:Roberts, Sobel, Prewitt, Frei-
Chen和Laplacian等，均以图像局部区域特征与特定
边缘模式匹配为基础，定义数个方向导数模板(一般为
窗口)，将图像与模板进行卷积运算实现边缘检测。它
们具有实现简单，速度快速，易于应用的特点。当模板
方向与边缘方向相匹配时，能取得非常有效的边缘检
测结果。
-The edge is the most important information in the image, and is an important basis for pattern recognition, image segmentation and scene analysis. Edge detection is an important field of image processing technologies and tasks. Edge in the image is usually interpreted as grayscale values sudden changes in pixel gradient local maxima. Many classic edge detection operators such as: Roberts, Sobel, Prewitt, Frei-Chen and Laplacian, etc., are the image of local regional characteristics specific edge pattern matching based on the definition of a number of directional derivative template (usually a window), the image convolution operation of edge detection with a template. They have a simple, fast speed, easy to apply. When the template direction and the edge direction matches, can achieve very efficient edge detection result.
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Size: 2691072 |
Author: zhk |
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Description: 边缘是图像中最重要的信息，是模式识别、图像分
割以及场景分析的重要基础。边缘检测是图像处理领
域一项重要的技术和任务。图像中边缘通常解释为灰
度值有突然改变，像素梯度具有局部极大值。很多经
典的边缘检测算子如:Roberts, Sobel, Prewitt, Frei-
Chen和Laplacian等，均以图像局部区域特征与特定
边缘模式匹配为基础，定义数个方向导数模板(一般为
窗口)，将图像与模板进行卷积运算实现边缘检测。它
们具有实现简单，速度快速，易于应用的特点。当模板
方向与边缘方向相匹配时，能取得非常有效的边缘检
测结果。
-The edge is the most important information in the image, and is an important basis for pattern recognition, image segmentation and scene analysis. Edge detection is an important field of image processing technologies and tasks. Edge in the image is usually interpreted as grayscale values sudden changes in pixel gradient local maxima. Many classic edge detection operators such as: Roberts, Sobel, Prewitt, Frei-Chen and Laplacian, etc., are the image of local regional characteristics specific edge pattern matching based on the definition of a number of directional derivative template (usually a window), the image convolution operation of edge detection with a template. They have a simple, fast speed, easy to apply. When the template direction and the edge direction matches, can achieve very efficient edge detection result.
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Size: 32768 |
Author: zhk |
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Description: 指纹方向图的计算，采用sobel算子，能计算出每个点的方向-Fingerprint pattern calculated using sobel operator, direction can be calculated for each point
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Size: 1024 |
Author: 张雨 |
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Description: 去除同一方向上，直线相交的拐点；将合并后的图像中分割区域中变为道路标线区域；获取任意两点之间的角度；获取Sobel边缘检测后的最长直线；对图像进行分块处理；获取任意两点之间的距离等等。-Removal of the same direction, a straight line intersecting the inflection point divided region in the merged image becomes the road marking area Get the angle between any two points Get longest straight after the Sobel edge detection the image stars The block handling obtain the distance between any two points.
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Size: 14761984 |
Author: 闵 |
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Description: 本文采用 Sobel 算子检测待插像素点周围的原图像像素点，判断其是否边缘点并检测出边缘方向，再依据沿边缘走向的像素点灰度变化平缓，边缘两侧像素点灰度值突变的进
行待插像素点的自适应插值。该算法具有较低的算法复杂度良好的客观质量，视觉效果以及最佳的图像缩放综合性能。本文工作是正在开发的数字电视图像后处理SoC芯片中
的一部分，下一步工作为：完成本文算法的硬件实现，将其作为 SoC 芯片中的图像缩放模块，与降噪模块、去隔行模块等其他 IP 模块一起形成完整的数字电视图像后处理 SoC芯片。
-In this paper, Sobel operator detected around the point to be interpolated pixel of the original image pixel to determine whether the detected edge point and the edge direction, and then based on the pixels along the edge to smooth gray change, on both sides of the edge pixel gray value mutation the conduct to be interpolated pixel adaptive interpolation. The algorithm has lower computational complexity of the objective good quality, best visual effects and image scaling overall performance. This work is being developed for digital TV SoC chip image post-processing part, the next step is: complete hardware implementation of the algorithm, as a SoC chip image scaling module, the module with noise reduction, de-interlacing, and other modules IP module together to form a complete digital television image post-processing SoC chip.
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Size: 5325824 |
Author: 吴江 |
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Description: ：％中值滤波％otsu 自动阈值计算％利用4个方向的roberts和进行边缘提取,并二值化％膨胀处理- Otsu median filter automatically calculate threshold using 4 direction roberts and edge detection and binarization expansion deal-Otsu median filter automatically calculate threshold using 4 direction roberts and edge detection and binarization expansion deal
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Size: 245760 |
Author: 黄亮亮 |
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Description: Sobel算子根据像素点上下、左右邻点灰度加权差，在边缘处达到极值这一现象检测边缘。对噪声具有平滑作用，提供较为精确的边缘方向信息，边缘定位精度不够高。当对精度要求不是很高时，是一种较为常用的边缘检测方法。本代码用sobel边缘检测，检查细胞边缘，有图。- 简体中文 繁体中文 英语 法语 德语 西班牙语
Sobel operator according to the pixel point up and down, left and right adjacent pixels gray weighted difference, at the edge of this phenomenon to detect the edge of the edge. The noise has a smooth effect, providing a more accurate edge direction information, edge positioning accuracy is not high enough. When the accuracy requirement is not very high, it is a kind of common edge detection method. The code with Sobel edge detection, check the cell edge, there is a fig.
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Size: 21504 |
Author: wuyi |
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Description: 利用八方向的sobel边缘检测，实现对图像多梯度的梯度检测，检测出的边缘信息更加平滑连续。(Eight direction Sobel edge detection is used to realize gradient detection of image multi gradient, and the edge information detected is more smooth and continuous.)
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Size: 55296 |
Author: 追梦苦旅 |
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