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[2D Graphic] HUandradon DL : 0: 用于计算HU 的7个不变矩和RADON的2、3阶不变矩。网站中有C++写的RADON变换，但西北工业大学的一名教授使用RADON变换构建了这种新型的不变距，可以降低图象的维数，计算速度较快。算法详情可参考他的文献。-used in the calculation of the seven RADON unchanged moments and the 2,3-order moment invariants. Web site is written in C RADON transform, but Northwestern University professor using a RADON Transform Construction of this kind of new unchanged from, images can reduce the dimension and fast calculation. Algorithm Details can be found in the literature.
Date : 2026-01-10 Size : 12kb User : listen
[2D Graphic] triangle_source DL : 0: 实现2D网格剖分,有限元分析时很有用,从国外的开源网站上下载的,使用过,很方便-Realize 2D mesh, finite element analysis was very useful, from abroad, open-source Web site to download and use, very convenient
Date : 2026-01-10 Size : 138kb User : tangdading
[2D Graphic] Homography DL : 0: 已知图象4点坐标和转换后图像相对应4点坐标，利用openCV求出homograghy 3x3 矩阵，然后输出变换后图像-There is an input image called "warpin". The goal is to warp this image so that the tiles are approximately square, that is the camera is rotated to look down, which produces an image called warpout, also on the web site. I have measured the corners of the four points necessary to do the warp. They are: From x,y To x,y Top Left 75,169 => 103, 19 Top Right 118,165 => 192, 19 Bottom Left 62,222 => 105, 205 Bottom Right 148,216 => 192, 205 The origin of the image is in the top left corner. This is an OpenCV program that takes the warpin image, and using these given transformation coordinates produces the warpout image.
Date : 2026-01-10 Size : 70kb User : Ke Li