使用qimage load需要提供一个图像文件的路径作为参数,函数会根据文件路径读取图像数据并创建对应的QImage对象。 第二部分:使用qimage load加载本地图片 1.如何加载本地图片? 通过调用qimage load函数,并传递本地图片的路径作为参数,可以加载本地图片。例如:QImage image =QImage::fromFile("path/to/image.jpg"); 2...
QString file = QString("./images/images%1/%2.jpg").arg(index+1).arg(index2+1); // 使用QImage直接加载文件,再转换成pixmap DEBUG(file); QImage image;//转换成QImage image.load(file); t.start(); QPixmap bmp; bmp = QPixmap::fromImage(image);//转换成QPixmap QString str = QString...
mMenuButtonImage->load(file,"BMP"); } (2) Image.qrc文件 <!DOCTYPE RCC><RCCversion="1.0"> <file>Images/ExtractEdges.ico</file> <file>Images/OpenFile.ico</file> <file>Images/MenuButton.bmp</file> </RCC> 也就是,用QString::fromUtf8得到文件的路径,然后修改qrc文件,将Image的信息加到...
DEBUG(file); QImage image;//转换成QImage image.load(file); t.start(); QPixmap bmp; bmp = QPixmap::fromImage(image);//转换成QPixmap QString str = QString("file: %1 time:%2").arg(file).arg(t.elapsed()); total += t.elapsed(); DEBUG(str); ui->textBrowser_3->append(str);...
(file); QImage image;//转换成QImage image.load(file); QPixmap bmp; bmp = QPixmap::fromImage(image);//转换成QPixmap QString str = QString("file: %1 time:%2").arg(file).arg(t.elapsed()); total += t.elapsed(); DEBUG(str); ui->textBrowser_2->append(str); } } ui->...
Bmp2Base64vs(QWidget*parent =Q_NULLPTR);boolload_img_from_file(constQString &file_name);//image 转 base64 字符串QString bmp_2_base64_string(constQImage&img); QString bmp_2_base64_string_from_file(constQString&file_name);//base64 转 QImageQImage base64_string_2_img(constQString&str...
qDebug() << openFile; QImage *img =newQImage;boolb = img->load(openFile); qDebug() << b; ui->reco->setPixmap(QPixmap::fromImage(*img)); 结果如下: "E:/bysj/test/pttt1.png"false
qDebug() << openFile; QImage *img =newQImage;boolb = img->load(openFile); qDebug() << b; ui->reco->setPixmap(QPixmap::fromImage(*img)); 结果如下: "E:/bysj/test/pttt1.png"false
class LoadQImageProgram : public QMainWindow { Q_OBJECT public: LoadQImageProgram(QWidget *parent = nullptr); ~LoadQImageProgram(); void decodeImageWithFFmpeg(const QByteArray& imageData); public slots: void startTest(); private: Ui::LoadQImageProgramClass ui; ...
bool QImage::load ( const QString & fileName, const char * format = 0 )Loads an image from the file with the given fileName. Returns true if the image was successfully loaded; otherwise returns false.The loader attempts to read the image using the specified format, e.g., PNG or JPG...