棋盘格生成小工具

#pragma execution_character_set("utf-8") #include "create_checkboard.h" #include <QFileDialog> #include <QMessageBox> #include <opencv2/opencv.hpp> create_checkboard::create_checkboard(QWidget *parent) : QMainWindow(parent) { ui.setupUi(this); QDir dir; directory = dir.currentPath(); ui.pathLabel->setText(directory); // 连接信号槽 connect(ui.setPathBtn, SIGNAL(clicked()), this, SLOT(setPathBtn())); connect(ui.generateBtn, SIGNAL(clicked()), this, SLOT(generateBtn())); connect(ui.quitAction, SIGNAL(triggered()), qApp, SLOT(quit())); connect(ui.aboutAction, SIGNAL(triggered()), this, SLOT(aboutAction())); } void create_checkboard::setPathBtn() { QFileDialog::Options options; options |= QFileDialog::DontResolveSymlinks | QFileDialog::ShowDirsOnly; QString dir = QFileDialog::getExistingDirectory(this, tr("获得保存图像的路径"), "./", options); if (!dir.isEmpty()) { directory = dir; ui.pathLabel->setText(directory); } } void create_checkboard::generateBtn() { if (directory.isEmpty()) { // 需要设置保存路径 QMessageBox::question(NULL, "注意", "请设置保存路径", QMessageBox::Yes, QMessageBox::Yes); return; } int width = ui.widthSpin->value(); int height = ui.heightSpin->value(); int pixSize = ui.pixSizeSpin->value(); if (width < 2 || height < 2 || pixSize == 0) { QMessageBox::question(NULL, "注意", "请重新设置参数", QMessageBox::Yes, QMessageBox::Yes); return; } // 图像大小，并初始化图片大小 int imageWidth = (width + 1)*pixSize; int imageHeight = (height + 1)*pixSize; cv::Mat image(cv::Size(imageWidth, imageHeight), CV_8UC1); int grayRowValue = 0; int grayColValue = 0; // 左上角为黑色棋盘格，相邻为白色，黑白间隔排列，以此类推 for (int i = 0; i < height +1; i++) { for (int j = 0; j < width +1; j++) { for (int singleBoardHeight = 0; singleBoardHeight < pixSize; singleBoardHeight++) { for (int singleBoardWidth = 0; singleBoardWidth < pixSize; singleBoardWidth++) { int w = i * pixSize + singleBoardWidth; int h = j * pixSize + singleBoardHeight; image.at<uchar>(w,h) = grayRowValue; } } grayRowValue == 0 ? grayRowValue = 255 : grayRowValue = 0; } grayColValue == 0 ? grayColValue = 255 : grayColValue = 0; grayRowValue = grayColValue; } // 生成保存的名称 QString fileName = directory+"/"+QString::number(width) + "-" + QString::number(height) + "-" + QString::number(pixSize)+".jpg"; std::string std_filename = (const char *)fileName.toLocal8Bit(); cv::imwrite(std_filename,image); QMessageBox::about(NULL, "提醒", fileName+" 保存完成!"); } void create_checkboard::aboutAction() { QMessageBox::about(this, "关于", "欢迎大家关注我的博客，与我一起交流进步！\nCSDN：不吹牛不睡觉\n链接：https://blog.csdn.net/u012283902"); }