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Description: 图象分割程序：先用梯度函数进行边缘检测,然后二值化后分割图象-Image segmentation process: first the gradient edge detection function, and then after binarization image segmentation
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Size: 20480 |
Author: fzx |
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Description: 图像压缩去噪增强锐化程序，供大家参考。
包括：数字图像矩阵数据的显示及其傅立叶变换
二维离散余弦变换的图像压缩
采用灰度变换的方法增强图像的对比度
采用二维中值滤波函数medfilt2对受椒盐噪声干扰的图像滤波
采用MATLAB中的函数filter2对受噪声干扰的图像进行均值滤波
图像的自适应魏纳滤波
运用5种不同的梯度增强法进行图像锐化
图像的高通滤波和掩模处理
利用巴特沃斯（Butterworth）低通滤波器对受噪声干扰的图像进行平滑处理
利用巴特沃斯（Butterworth）高通滤波器对图像进行锐化处理-Sharpen Image Compression Denoising enhanced procedures for your reference. Include: digital image data display matrix and its Fourier transform two-dimensional discrete cosine transform image compression method using gray-scale transformation of the contrast-enhanced images using two-dimensional median filter function by medfilt2 of salt and pepper noise image filtering using MATLAB The function affected by noise interference filter2 images mean filter Adaptive Image Filtering Wehner use five kinds of different gradient method to enhance image sharpening images of high-pass filtering and mask treatment using Butterworth (Butterworth) low pass filter noise by smoothing the images deal with the use of Butterworth (Butterworth) high-pass filter for sharpening images treatment
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Size: 11264 |
Author: 张悦庭 |
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Description: 检测图像的边缘：
用Prewitt算子检测图像的边缘
，用不同σ值的LoG算子检测图像的边缘
，用Canny算子检测图像的边缘
，图像的阈值分割
，用水线阈值法分割图像
，对矩阵进行四叉树分解
，将图像分为文字和非文字的两个类别
，形态学梯度检测二值图像的边缘
，形态学实例——从PCB图像中删除所有电流线，仅保留芯片对象
-Image edge detection: edge detection using Prewitt edge images, with different σ value Log Operators image edge detection using Canny operator image edge detection, image thresholding, water line thresholding segmentation images, of the matrix quadtree decomposition, the image is divided into text and non-text of two categories, the morphological gradient detection of the edge binary image, morphology examples- from PCB image delete all current lines, retaining only the target chip
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Size: 40960 |
Author: 张悦庭 |
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Description: 图像的组成无非是一些字符串或者一些字节组成的字符串，然而，每一个字节数据位的重要度并不是一样的，两个相邻字节往往只有低位是不一样的。例如：00100110和00100111代表了两个不同渐变度的红色，但是就人眼是分辨不出来的。最低有效位LSB算法，就是利用这一点，达到图像压缩，或者数字水印的功能。-The composition of the image is nothing more than some number of bytes or string composed of string, however, one byte for each data bit is not an important degree of the same, often only two adjacent low-byte is not the same. For example: 00100110 and 00100111 represent the gradient of two different degrees of red, but on the human eye is not out to tell. Least significant bit LSB algorithm, is to take advantage of this point, to achieve image compression, or digital watermark feature.
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Size: 322560 |
Author: xlz |
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Description: 提 出了一种基于形状模板 匹配的图像 自动拼接 方法。提取 图像 的角点作 为特 征点，利用归一化梯度模板对
其进行预 匹配．然后 利用形状模板在 四个方 向对模板 内图像的边缘 点与模板边界的最短距 离进行统计 ，获取模板 图像的
结构特征向量以实现对特征点的精确匹配。实验结果表明该算法具有较好的实用价值。 -A shape-based template matching method of image auto-splicing. Extract image feature points as corner points, using the normalized gradient of their pre-match template. The shape of the template and then use the template in the four directions within the image edge point and the shortest distance between the template border statistics, access to the template image of the structure of eigenvectors of the feature points in order to achieve the exact match. Experimental results show that the algorithm has good practical value.
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Size: 171008 |
Author: memcpy |
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Description: 图像重建常常被转化为解非线性无约束极值问题, 通过范数极小化推导出共扼梯度法的
一般算法。通过对模拟数据和实际工件断层扫描数据进行图像重建, 估计了算法的有效性, 结果表明, 与最速下降法相比, 此算法更适用于不完全投影数据的图像重建, 在保证重建图像拟合度的同时, 大大提高了重建速度。-Image reconstruction has often been transformed into solving nonlinear unconstrained extremum problem, through the norm minimization derived conjugate gradient method the general algorithm. Through the simulation data and actual data workpiece tomography image reconstruction, it is estimated that the effectiveness of the algorithm, the results showed that compared to steepest descent method, this algorithm is more applicable to incomplete projection data image reconstruction, in ensuring that the reconstructed image fit at the same time, greatly improving the speed of reconstruction.
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Size: 364544 |
Author: 孙翔 |
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Description: 用水线阈值法分割图像 对矩阵进行四叉树分解 将图像分为文字和非文字的两个类别 形态学梯度检测二值图像的边缘-Water line image thresholding segmentation of matrix quadtree decomposition of the image into text and non-text for these two types of morphological gradient detected binary image of the edge
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Size: 1024 |
Author: 焦竹青 |
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Description: 利用梯度矢量流算法进行轮廓提取（图像分割），不错的方法，对原来的ACM模型进行改进（active contour model 活动轮廓模型）-using gradient vector flow algrithm to extract image contour,improvement from active contour model
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Size: 13312 |
Author: wykme |
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Description: 本程序实现了基于梯度金字塔的图像融合算法，效果还不错，可以参考一下。-This procedure based on the gradient pyramid implementation of image fusion algorithms, the effect was not bad, you can reference.
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Size: 1024 |
Author: WSH |
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Description: Computes the vector gradient of an RGB image
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Size: 1024 |
Author: linker |
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Description: Gradient code. Use this to do gradient of image.
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Size: 2048 |
Author: Markov |
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Description: 遥感图像的打开处理程序，能够打开单波段，多波段图像，几何图像变换，线性拉伸变换，平滑
处理包括并行和串行，锐化处理包括梯度锐化、Roberts锐化、laplace锐化、sobel锐化等，还
有用绝对距离和马氏距离算法进行的监督分类算法等，包括了RAW格式数据资源-The opening of remote sensing image processing, to open the single-band, multi-band images, geometric image transformations, linear stretching transformation, smoothing, including parallel and serial processing, including gradient sharpening sharpening, Roberts sharpening, laplace sharpening, sobel sharpening, as well as with the absolute distance and Mahalanobis distance algorithm of the supervised classification algorithms, including the RAW format of data resources
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Size: 10661888 |
Author: 幻影 |
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Description: It can be used to change colored image to gray image,and compute the pixel gradient value and direction. Try it.
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Size: 1024 |
Author: eric |
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Description: Watershed segmentation is a region-growing method. In watershed
segmentation,using gradient image catchment basins represent the regions of the segmentation
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Size: 128000 |
Author: Apurv |
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Description: Calculating the gradient of an image and then pots the histogram of the gradient
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Size: 3072 |
Author: eetuna |
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Description: 此代码用于完成MRI图像的压缩采样重建。它是论文"Sparse MRI: The Application of Compressed Sensing for Rapid MR Imaging", 2007中的源码-This is an implementation of Compressed Sensing reconstruction for MRI data.
It implements the non-linear conjugate sub-gradient algorithm as described in
the paper "Sparse MRI: The Application of Compressed Sensing for Rapid MR Imaging", 2007
Magn Res Med, In Press.
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Size: 19181568 |
Author: 李琳 |
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Description: 图像梯度计算 遥感图像处理必备 非常实用 欢迎下载-Remote sensing image processing image gradient calculation is very useful are welcome to download necessary
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Size: 4096 |
Author: wangyuandong |
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Description: 数字图像处理 直方图修正 空间域平滑 空间域锐化 梯度倒数加权平滑法 中值滤波 多种算子锐化 灰度最相近的6个邻点平均法-Histogram correction of digital image processing spatial spatial smoothing sharpening Gradient Inverse Weighted Smoothing median filter operator sharpening a variety of gray nearest neighbor point average 6
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Size: 2737152 |
Author: upc |
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Description: 基于标记的Watershed图像分割算法是一种改进的分水岭算法，它很好地被应用于人脸及其他一些场景图像的分割。把该方法引入高分辨遥感图像的分割，并针对遥感图像的特点，在分割之前采用中值滤波对高分辨率遥感图像进行预处理；同时，在分割过程中采用用小波滤波器替代Butterworth滤波器对梯度图像的低通滤波。不同地物特征Quickbird图像的分割实验表明，对于纹理比较均一的高分辨率遥感图像，该方法避免了过分割现象，且效率较高；但对于纹理比较复杂的图像，该方法具有一定的局限性。-Watershed based image segmentation algorithm tag is an improved watershed algorithm, it well be applied to the face and some other scenes segmentation of images. The introduction of high-resolution remote sensing of the method for segmentation of images and features for remote sensing image, the segmentation using median filtering before the high-resolution remote sensing image is preprocessed also used in the segmentation process Butterworth filter with a wavelet filter replacement the gradient image of low-pass filter. Characteristics of different objects that Quickbird image segmentation, for texture and uniform high-resolution remote sensing images, the method avoids over-segmentation phenomenon, and efficient but more complex texture images, this method has some limitations .
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Size: 973824 |
Author: xiliao |
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Description: 本人精心整理的VB程序开发的平面图像处理软件，最初为国外的一个功能较全的图像程序，经过本人汉化，修改，功能得到极大扩展。内容包括各种滤镜，绘图、ico图标生成，图形特效，分型图案，莫尔图案，摩尔图案，美丽图案，渐变色，图像翻转，旋转，Alpha混合，图像显隐特效，不同大小的ico图标绘制简单动画演示，图形打开和保存等等，支持jpg、bmp、gif、wmf等格式。几年的图像处理程序收藏精华全在这儿了！希望对大家的学习有所帮助。-I carefully finishing plane image processing software, initially for a foreign function over the entire image program, and after I finished, the modified features have been greatly expanded. Include a variety of filters, drawing, ico icon generates graphical effects, typing patterns, moire patterns, the moiré pattern, beautiful pattern, gradient, image flip, rotate, Alpha mixed, the image explicit and implicit effects, different size of the ico icon to draw a simple animation, graphics, open and save, support jpg, bmp, gif, wmf format. Years of image processing procedures Favorite essence all in here! I hope to help everyone learn.
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Size: 969728 |
Author: xft |
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