GIS, computer graphics Douglas

在计算机视觉中首先一步是计算每个摄像机的参数(外参和内参)，这是重建物体所必须的，这一个过程称为摄像机定标(camera calibration)。这是我自己写的一个简单的采用2维模板(模板是由黑白相间的格子组成，格子大小60cm×60cm)定标的程序，交互性比较好，每个角点通过鼠标点击自动获取。-Computer Vision in the first step is to calculate the parameters of each camera (outside the Senate and internal), which is necessary for the reconstruction of objects, which a process known as camera calibration (camera calibration). This is what I wrote it myself using a simple 2-D template (template is composed of black-and-white lattice, lattice size of 60cm × 60cm) calibration procedures, better interactivity, each corner through the automatic acquisition of mouse clicks.

SIFT，介绍局部特征不变向量原理。同时利用SIFT进行图像的分割和识别。比较基础的资料-SIFT, introduce the principle of local feature vector unchanged. At the same time, the use of SIFT to image segmentation and identification. Comparison of basic information

一书中的第四章图像的平移、镜像变换、转置、缩放、旋转等，一本很好的书和算法源代码- Chapter IV of the book image translation, image transform, transpose, zooming, rotating and so on, a good book and the algorithm source code

图像处理源代码，实现了读取PGM图像，写PGM图像，对图像进行下采样得到一半大小图像的功能。testImage.cpp中包含main函数。-image processing source code, achieving PGM images read, write PGM image, the image sampling to be conducted under half the size of the image function. TestImage.cpp contains main function.

IDL入门教程，较传统的有很大的优势，是学习的最好选择-IDL Tutorial, a more traditional great advantage is to learn from the best choice

数学形态学的主要优点是计算简单和并行快速，一般只包含布尔运算、加减法运算而不需要做先进乘法，易于硬件实现，-The main advantage of mathematical morphology is to calculate simple and fast parallel, generally contain only Boolean operations, add and subtract operations without the need for the multiplication of advanced, easy hardware implementation,

通过采样比较对人的鼻子进行识别，C++源代码-Through the sample compared to the human nose to identify, C++ Source code

C下gabor滤波算法 提取图象纹理特征的经典方法 under C filtering algorithm extract image texture features one of the classic methods -C under the gabor filtering algorithm extracted image texture features classic method under C filtering algorithm extract image texture features one of the classic methods

实现数字水印算法，抗剪切，抗噪声，但不抗旋转。-Digital watermarking algorithm implementation, anti-shear, anti-noise, but not anti-rotation.

包括画直线、反走样直线、画圆、 画椭圆、画矩形、画多边形、矩形填充、多边形填充、3D变换、光照、贴图等-Including painting a straight line, anti-aliased line, circle, drawing an oval, rectangular painting, painting polygon, rectangle fill, polygon fill, 3D transformation, light, texture, etc.