Gradients

Image inpainting example code

电视系统中，进行需要在线调整Gamma曲线，此工具可以方便的对电视系统中的Gamma曲线读写，修改，该软件使用了贝塞尔曲线，方便的拖出你想要的曲线，然后在线升级(TV system, to adjust the Gamma curve need to be online, this tool can be easily against the television system in the Gamma curve to read and write, modify, the software uses the Bezier curves, a convenient pulled out the curve you want, and then Online Upgrade)

二维TM偏振平面波传播演进的FDTD实现。(Two-dimensional plane-wave propagation in the evolution of FDTD implementation)

说明：  电磁波在均匀等离子体中的传输，等离子体密度适中(microwave propagation in uniform plasma)

最大类间方差法是由日本学者大津(Nobuyuki Otsu)于1979年提出的,是一种自适应的阈值确定的方法,又叫大津法,简称OTSU。它是按图像的灰度特性,将图像分成背景和目标2部分。背景和目标之间的类间方差越大,说明构成图像的2部分的差别越大,当部分目标错分为背景或部分背景错分为目标都会导致2部分差别变小。(The largest between-class variance method was proposed by the Japanese scholar Nobuyuki Otsu in 1979. It is an adaptive threshold determination method, also known as the Otsu method, or OTSU for short. It is based on the grayscale characteristics of the image and divides the image into two parts: the background and the target. The larger the variance between the background and the target, the greater the difference between the two parts that make up the image. When the part of the target is wrongly divided into backgrounds or part of the background is mis-divided into goals, the difference between the two parts will be smaller.)

只需改变结构的内外半径即可即可求解杆状结构和管状结构的相速度和群速度的频散曲线。(Just change the structure of the inner and outer radii can be solved phase velocity dispersion curves and the group velocity of the rod-shaped structures and tubular structures.)

清华大学本科生课程设计，实现平面点集的三角剖分！用外接圆测试剖分的正确性。算法执行速度较快，但存在狭长三角形！(Tsinghua University undergraduate courses designed to achieve the triangulation of the set of points in the plane! Circumcircle test the correctness of the split. Algorithms perform faster, but there is a long, narrow triangle!)

计算图像的二维图像熵,在一维熵的基础上引入能够反映灰度分布空间特征的特征量组成图像的二维熵 包括 计算图像二维图像熵的函数文件 H_img2d.m 调用该函数的代码 H_img2d_test.m 以及测试代码用图像文件 boy.jpg(computing two dimensional image entropy of an image)

这是计算机图形学的内容，可以实现线段的裁剪，初学者适用(This is the content of computer graphics, the cutting line can be achieved, for beginners)

对像素点较少的原始图像进行二维插值，以提高图像的平滑度。()