Fast_optical_image_geometric_distortion_correction

能量检测法是一种比较简单的信号检测方法[1]， 属于信号的非相干的检测， 直接对时域信号采样值求模，然后平方即可得到；或利用FFT转换到频域，然后对频域信号求模平方也可得到。它无需知道检测信号的任何先验知识，对信号类型也不作限制。 实际上，能量检测是在一定频带范围内作能量积累，如果积累的能量高于一 定的门限，则说明信号的存在；如果低于一定的门限，则说明仅有噪声。能量检 测的出发点是信号加噪声的能量大于噪声的能量。能量检测方法对信号没有作任何假设，是一种盲检算法。 此代码“利用FFT转换到频域，然后对频域信号求模平方”方法来实现对用户的检测。(In fact, energy detection is used for energy accumulation in a certain frequency range. If the accumulated energy is higher than a certain threshold, the existence of the signal is indicated. If the threshold is lower than the threshold, then only noise is indicated. The starting point of energy detection is that the energy of signal plus noise is greater than that of noise. The energy detection method does not make any assumptions about the signal, and it is a blind detection algorithm. This code "converts the frequency domain into the frequency domain by FFT, then calculates the square of the square of the frequency domain signal" to realize the detection of the user.)

基于MATLAB实现的图像中Hariis角点检测方法示例(Hariis corner detection based on MATLAB)

PDF417条码定位与检测，视频课程作业，很好的定位了条码而且将其旋转到正方向(PDF417 bar code location and detection, video course work, a good positioning of the bar code and will rotate to the positive direction of its)

说明：  用matlab实现的LSB的信息隐藏，有实验用的的图，可以完美运行(The information hiding of LSB realized by MATLAB, with experimental graph, can run perfectly)

实现洛伦兹系统分岔图的三种方法，最大值法，庞加莱截面法，getmax法(Three Methods to Realize Lorentz System Bifurcation Diagram)

说明：  基于python语言的三种图像简单去噪算法(Three simple image denoising algorithms based on Python)

说明：  利用matlab对图像进行处理，通过形态学开闭运算，实现对光照不均匀啤酒瓶图像进行准确计数(The image is processed by MATLAB, and the image of beer bottle with uneven illumination can be counted accurately by morphological opening and closing operation)

能实现图像的分割和识别,能够区分开近似颜色区域的影响(this code can perform image crop and recongition)

凑算式 看这个算式： ☆☆☆ + ☆☆☆ = ☆☆☆ 如果每个五角星代表 1 ~ 9 的不同的数字。 这个算式有多少种可能的正确填写方法？ (Minato formula Look at this formula: ☆☆☆+ ☆☆☆ = ☆☆☆ If each five-pointed star represents a different number 1 to 9. This formula has a number of possible methods correctly filled?)

说明：  用于计算图像的信息熵和相关性系数，在信息隐藏的图像算法评价中有很好的应用。(It is used to calculate the information entropy and correlation coefficient of image, and has a good application in the evaluation of image algorithm of information hiding.)