Description: 数字图像处理中，灰度图像的放大、缩小，平移和旋转功能实现的源代码，分别采用最近邻插值法和双线性插值方式实现。-Digital image processing, the gray-scale image to enlarge, narrow, pan and rotate functions of the source code, respectively, using nearest neighbor interpolation and bilinear interpolation way. Platform: |
Size: 69632 |
Author:caonimabitoo |
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Description: 基于傅立叶－梅林变换的matlab编写的配准系统，运行fm_gui.m后即出现演示界面，左侧的两个图形框选择待配准的两幅图像，图像可以进行缩放旋转变换。右侧的列表框"Window"下可以选择滤波窗，"Rotation"、"Scale"、"Log-polar"可分别选择旋转、缩放、以及对数极坐标变换所用的插值方法，按键"REGISTER"下的滑动
键可选备选的峰值点总数，点击"REGISTER"按键，
对应的下方图形框即显示配准后的两幅图像，最下方的"Translation"、"Rotation"和"Scale"文本框分别显
示待配准图像间的偏移、旋转、缩放参数。-Based on the Fourier- Mellin transform matlab prepared with System, after having run the demo fm_gui.m interface, the left side of the box to choose the two graphics to be matching the two images, the image can zoom in and out rotation. The list on the right box " Window" under the option of filtering window, " Rotation" , " Scale" , " Log-polar" can choose to rotate, zoom, as well as the number of polar coordinate transform of the interpolation method used, button " REGISTER" sliding under the optional options key points of the total number of peaks, click on " REGISTER" button below the corresponding graphic box that is displayed after the registration of two images, the bottom of the " Translation" , " Rotation" and " Scale" text box Registration to be, respectively, show the offset between images, rotation, scaling parameters. Platform: |
Size: 532480 |
Author:刘子木 |
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Description: 利用MATLAB做一些基礎的影像處理，如灰階值、圖片放大、縮小、旋轉-Use MATLAB to do some basic image processing, such as the gray-scale value, image to enlarge, reduce, rotate, and so on ..... Platform: |
Size: 6139904 |
Author:劉俊魚 |
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Description: Imagemagic是一款创建、编辑、压缩图像的软件。可以转换 DPX, EXR, GIF, JPEG, JPEG-2000, PDF, PhotoCD, PNG等格式，并且能够轻松的对图片进行旋转，缩放等操作-ImageMagick® is a software suite to create, edit, and compose bitmap images. It can read, convert and write images in a variety of formats (over 100) including DPX, EXR, GIF, JPEG, JPEG-2000, PDF, PhotoCD, PNG, Postscript, SVG, and TIFF. Use ImageMagick to translate, flip, mirror, rotate, scale, shear and transform images, adjust image colors, apply various special effects, or draw text, lines, polygons, ellipses and Bézier curves. Platform: |
Size: 11085824 |
Author:kfld |
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Description: 一组用于做匹配实验的实验图片，包括旋转变换，尺度变化，亮度变换等-a group of pics used for image-matching test, including rotate transform, scale transform, and luminance transform Platform: |
Size: 1534976 |
Author:张三 |
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Description: OPenGL游戏编程框架，更改部分代码，是图像变为自动旋转，缩放的彩色透明立方体-OPenGL game programming framework, change some code into the image automatically rotate, scale, color transparent cube Platform: |
Size: 3041280 |
Author:小手一拿 |
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Description: 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 Platform: |
Size: 2831360 |
Author:李青彦 |
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Description: 图像作为一种特殊的图形，有着很强的描述自然的能力。在动画制作过程中，要充分的利用图像这种载体。
在前面章节中，已经给出了播放图像制作动画的例子，其实还可以缩放图像、旋转图像、分割图像、增强减弱图像颜色亮度等等制作动画，这些内容也属于图像处理的内容。
下面主要介绍基于OpenGL的（图像）纹理映射动画制作技术。
在学习OpenGL纹理映射动画制作的同时，还学习在VC++环境下使用Win32应用程序进行OpenGL程序设计
-Image as a special graphics, there is a strong description of natural ability. To take full advantage of the animation process, the image of this vector. Playing image animation examples have been given in the previous section, in fact, you can also scale the image, rotate an image, image segmentation, strengthen weakened the animation of the image color, brightness, etc., these elements also belong to the content of the image processing. The following describes the animation technique based on the OpenGL (image) texture mapping. While learning OpenGL texture mapping animation, but also to learn to use a Win32 application to carry out the OpenGL programming VC++ environment Platform: |
Size: 1422336 |
Author:zhaojun |
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Description: Sift(Scale Invariant Feature Transform)是一个很好的图像匹配算法，同时能处理亮度、平移、旋转、尺度的变化，利用特征点来提取特征描述符，最后在特征描述符之间寻找匹配。本源码是用c语言实现的，代码简单易理解-Sift (Scale Invariant Feature Transform) is a good image matching algorithm, and can handle the brightness, pan, rotate, scale changes, the use of feature points extracted feature descriptor, and finally find a match between the characterization character. Platform: |
Size: 5197824 |
Author:huangxiaoli |
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Search - image rotate scale