▍1. 图像去噪(matlab)
使用中值,均值,小波,DCT,PCA五种方法实现对图像的去噪处理。(Five methods, median, mean, wavelet, DCT and PCA, are used to denoise the image.)
使用中值,均值,小波,DCT,PCA五种方法实现对图像的去噪处理。(Five methods, median, mean, wavelet, DCT and PCA, are used to denoise the image.)
说明: 使用中值,均值,小波,DCT,PCA五种方法实现对图像的去噪处理。(Five methods, median, mean, wavelet, DCT and PCA, are used to denoise the image.)
JPEG2000自己编写的代码,与标准版有所不同,里面有详细注释,可以运行(Own code JPEG2000 Standard Edition is different, there are detailed notes, you can run)
说明: 计算色差(专门讨论了色相角差以及平均色相角的处理,并给出了matlab程序)(Calculated chromatic aberration)
1、运动目标进行检测与跟踪,背景差分法,卡尔曼滤波,检测结果用红色外接矩形框表示,跟踪结果用绿色矩形框表示 2、采用平均背景法更新背景图像; 3、代码部分附详细解释(1. The moving target in the video sequence is detected and tracked, the moving target detection part uses the background difference method, the tracking part uses Calman filter, the detection result is represented by the red outer rectangle frame, and the tracking result is expressed in green rectangle frame. 2. The background image is updated with the average background method. 3. The part of the code is explained in detail)
说明: 三次样条插值函数,分别是基于二阶导数的和一阶导数实现的(Cubic spline interpolation function)
说明: 这个是数字图像处理的算法原理介绍,讲的非常仔细,很好,是中文版。冈萨雷斯出的大作(This is the principle of digital image processing algorithm, speak very carefully, very good, is the Chinese version. Gonzalez's masterpiece)
绘制二维nurbs曲线,可以通过改变控制点或者权重从而改变图形的形状。(Draw a two-dimensional nurbs curve that changes the shape of a shape by changing the control point or weight.)
说明: 绘制二维nurbs曲线,可以通过改变控制点或者权重从而改变图形的形状。(Draw a two-dimensional nurbs curve that changes the shape of a shape by changing the control point or weight.)
说明: 图像识别,把行人轨迹绘制在公路图上,有多种显示方式。(Image recognition, drawing the pedestrian track on the road map, has a variety of display methods.)
说明: 稀疏表示常用matlab代码,可以直接跑(Sparse representation commonly used matlab code, can run directly)
说明: 能够实现对一幅图像的最近邻、双线性、双三次三种插值(Can realize the nearest neighbor, bilinear and bicubic interpolation of an image)
JSteg隐写技术matlab实现代码--基本思想:用秘密信息比特直接替换JPEG图像中量化后DCT系数的最低比特位,但若量化后DCT系数为0或者1,则不进行处理。(DCT系数的LSB嵌入) (JSteg steganography matlab code- the basic idea: direct replacement with the secret information bits JPEG image quantized DCT coefficients in the least significant bit, but if the quantized DCT coefficient is 0 or 1, no processing. (DCT coefficients LSB embedding))
JSteg隐写技术matlab实现代码--基本思想:用秘密信息比特直接替换JPEG图像中量化后DCT系数的最低比特位,但若量化后DCT系数为0或者1,则不进行处理。(DCT系数的LSB嵌入) (JSteg steganography matlab code- the basic idea: direct replacement with the secret information bits JPEG image quantized DCT coefficients in the least significant bit, but if the quantized DCT coefficient is 0 or 1, no processing. (DCT coefficients LSB embedding))
能够得到二维、三维voronoi图,修改后可以获得任意数量的voronoi图。(The two or thress-dimensional Voronoi diagram can be obtained, and any number of Voronoi diagrams can be obtained after modification.)