LeetCode——Rotate Image(二维数组顺时针旋转90度) 问题: You are given annxn2D matrix representing an image. Rotate the image by 90 degrees (clockwise). Follow up: Could you do this in-place? 分析: 二维数组a[n][n]顺时针旋转90度,要解决这个问题,无疑,第一件事儿就是找规律。 当n=1时,...
voidrotate_cw(constcv::Mat& image, cv::Mat& dest,intdegrees) {switch(degrees %360) {case0: dest=image.clone();break;case90: cv::flip(image.t(), dest,1);break;case180: cv::flip(image, dest,-1);break;case270: cv::flip(image.t(), dest,0);break;default: cv::Mat r= cv::...
You are given an n x n 2D matrix representing an image. Rotate the image by 90 degrees (clockwise). Note:You have to rotate the image in-place, which means you have to modify the input 2D matrix directly. DO NOT allocate another 2D matrix and do the rotation. 难度:Medium 2 题目样例...
1. Problem Descriptions:You are given an n x n 2D matrix representing an image, rotate the image by 90 degrees (clockwise).You have to rotate the image in-place, which means you have to modify the …
Rotate the image by 90 degrees (clockwise). Note: You have to rotate the imagein-place, which means you have to modify the input 2D matrix directly.DO NOTallocate another 2D matrix and do the rotation. Example 1: Giveninput matrix=[[1,2,3],[4,5,6],[7,8,9]],rotate the input ma...
2018-05-10 00:00 −题目:矩阵旋转 难度:Medium 题目内容: You are given an n x n 2D matrix representing an image. Rotate the image by 90 degrees (clockwise). Note: ... 清风吹斜阳 0 847 048 Rotate Image 旋转图像 2018-04-02 11:32 −给定一个 n × n 的二维矩阵表示一个图像。将图...
As an alternative to the GD rotateImage() function, this is an easy way to rotate images by 90 degrees ccw *without* loosing transparency:<?php function rotateImage($image) { $width = imagesx($image); $height = imagesy($image); $newImage= imagecreatetruecolor($height, $width); imageal...
You are given annxn2Dmatrixrepresenting an image, rotate the image by 90 degrees (clockwise). You have to rotate the imagein-place, which means you have to modify the input 2D matrix directly.DO NOTallocate another 2D matrix and do the rotation. ...
Problem # You are given an n x n 2D matrix representing an image. # # Rotate the image by 90 degrees (clockwise). # # Note: # You have to rotate the image in-pl...
With the image open in Photos, click on the Rotate icon (a circular arrow) at the top of the screen. Each click rotates the image 90 degrees clockwise. Photos automatically saves your rotated image, so there’s no need to manually save. Just close the app when you’...