Search - zoom matlab algorithm

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[Special Effects] dblinear DL : 0: 用matlab实现了彩色图像的缩放，采用的是双线性插值算法！-Matlab achieved using the zoom color images, using bilinear interpolation algorithm!
Date : 2025-12-22 Size : 1.04mb User : 张成峰
[Special Effects] bilinear_interpolation DL : 0: 双线性插值图像放大/缩小算法源程序。里面还包含了 Image 基本类及其基本操作，可供许多图像处理程序使用。-Bilinear interpolation image zoom in/out source algorithm. Which also contains the basic type of Image and its basic operation for many image processing programs.
Date : 2025-12-22 Size : 20kb User : breathomn
[Special Effects] sift DL : 0: 1 SIFT 发展历程 SIFT算法由D.G.Lowe 1999年提出，2004年完善总结。后来Y.Ke将其描述子部分用PCA代替直方图的方式，对其进行改进。 2 SIFT 主要思想 SIFT算法是一种提取局部特征的算法，在尺度空间寻找极值点，提取位置，尺度，旋转不变量。 3 SIFT算法的主要特点： a) SIFT特征是图像的局部特征，其对旋转、尺度缩放、亮度变化保持不变性，对视角变化、仿射变换、噪声也保持一定程度的稳定性。 b) 独特性(Distinctiveness)好，信息量丰富，适用于在海量特征数据库中进行快速、准确的匹配[23]。 c) 多量性，即使少数的几个物体也可以产生大量SIFT特征向量。 d) 高速性，经优化的SIFT匹配算法甚至可以达到实时的要求。 e) 可扩展性，可以很方便的与其他形式的特征向量进行联合。 4 SIFT算法步骤： 1）检测尺度空间极值点 2）精确定位极值点 3）为每个关键点指定方向参数 4）关键点描述子的生成本包内容为sift算法matlab源码-1 SIFT course of development SIFT algorithm by DGLowe in 1999, the perfect summary of 2004. Later Y.Ke its description of the sub-part of the histogram with PCA instead of its improvement. 2 the SIFT main idea The SIFT algorithm is an algorithm to extract local features in scale space to find the extreme point of the extraction location, scale, rotation invariant. 3 the main features of the SIFT algorithm: a) SIFT feature is the local characteristics of the image, zoom, rotate, scale, brightness change to maintain invariance, the perspective changes, affine transformation, the noise also maintain a certain degree of stability. b) unique (Distinctiveness), informative, and mass characteristics database for fast, accurate matching [23]. c) large amounts, even if a handful of objects can also produce a large number of SIFT feature vectors. d) high-speed and optimized SIFT matching algorithm can even achieve real-time requirements. e) The scalability can be very convenient fe
Date : 2025-12-22 Size : 2.7mb User : 李青彦
[Special Effects] 11 DL : 0: 基于MATLAB的图像处理的基本运算（1）能够对图像亮度和对比度变化调整，并比较结果（2）编写程序通过最近邻插值和双线性插值等算法将用户所选取的图像区域进行放大和缩小整数倍的和旋转操作，并保存，比较几种插值的效果（3）图像直方图统计和直方图均衡，要求显示直方图统计，比较直方图均衡后的效果。（4）对图像加入各种噪声，比较效果。 -Adjustment of image brightness and contrast changes, and compare the results based on MATLAB image processing operations (1) (2) to program the image area selected by the user to zoom in and out through the nearest neighbor interpolation and bilinear interpolation algorithm integer multiples and the rotary operation, and save, compare several interpolation image histogram and histogram equalization of the effect (3), required to display the histogram, comparative histogram after equalization effect. (4) adding a variety of noise on the image, comparing the effect.
Date : 2025-12-22 Size : 10kb User : 苏琴
[Special Effects] zoom_problem DL : 0: 一篇基于ＰＤＥ方法的zoomｉｎｇ算法的论文及其ｍａｔｌａｂ实现。-An algorithm based on the PDE zoom papers and Matlab.
Date : 2025-12-22 Size : 214kb User : yinyanwuai
[Special Effects] image-resize DL : 0: 图像的放大缩小，使用双线性插值跟最近邻插值，功能简单，适合初学者。（包含算法，并不是调用matlab插值内核）-Image zoom, bilinear interpolation with nearest neighbor interpolation, features a simple, suitable for beginners. (Including the algorithm, not calling matlab interpolation kernel)
Date : 2025-12-22 Size : 549kb User : candy