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目录：读取图像，获取属性信息，图像ROI，图像通道的拆分和合并 1. 读取图像 像素值返回：直接使用坐标即可获得， 修改像素值：直接通过坐标进行赋值 能用矩阵操作，便用，使用numpy中的array.item()以及array.itemset()会加快速度，逐渐修改像素会慢 2. 图像属性： 行、列 阅读全文
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function out1 = plotroc(varargin) %PLOTROC Plot receiver operating characteristic. % % plotroc(targets,outputs) takes target data in 1-of-N form (each column % vector is all zeros with a single 1 ind... 阅读全文
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function [tpr,fpr,thresholds] = roc(targets,outputs) %ROC Receiver operating characteristic. % % The receiver operating characteristic is a metric used to check % the quality of classifiers. For ea... 阅读全文
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function [X,Y,T,auc,optrocpt,subY,subYnames] = ... perfcurve(labels,scores,posClass,varargin) %PERFCURVE Compute Receiver Operating Characteristic (ROC) curve or other % performance curve for c... 阅读全文
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Given a non-empty binary tree, return the average value of the nodes on each level in the form of an array. Example 1: （1）思想1：使用queue ，对二叉树进行层遍历。 C++： 阅读全文
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Given n non-negative integers a1, a2, ..., an, where each represents a point at coordinate (i, ai). n vertical lines are drawn such that the two endpo 阅读全文
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Given a 32-bit signed integer, reverse digits of an integer. Example 1: Example 2: Example 3: Note:Assume we are dealing with an environment which cou 阅读全文