我正在开发图像处理程序,虽然我不断收到这些消息,但下面是一些示例,但是我得到了数百个示例,以至于程序无法完全执行。
QImage::setPixel: coordinate (1043968,0) out of range
QImage::pixel: coordinate (1043968,0) out of range
我看过其他问题,但我似乎找不到代码中的错误,不幸的是,我有大约8个函数,但我认为我将其范围缩小到可能存在问题的一个。该功能是假定要旋转给定图像的功能,我认为这可能是导致错误的原因,基于我已查看的其他问题,但我看不到它。我将不胜感激,我将为您提供任何帮助,或者,如果此功能很好,我又可以如何在不发表8个不同职位的情况下询问其他人,谢谢!
void makeRotate(QImage originalImage){
QImage inImage = originalImage; // Copies the original image into a new QImage object.
int width = originalImage.width();
int height = originalImage.height();
//a double for loop
//first loop through the HEIGHT OF inImage (width of newImage)
for (int i = 0; i < height; i++){
//loop through the WIDTH OF inImage (height of newImage)
for (int j = 0; j < width; j++){
//set the pixel
inImage.setPixel(i , j,(new QColor (getRgbaPixel(i, j, originalImage).red()), (getRgbaPixel(i, j, originalImage).green()), (getRgbaPixel(i, j, originalImage).blue()), 255));
}
}
inImage.save("../Images/rotate.png");
}
如果尝试旋转90度,则为代码
#include "mainwindow.h"
#include "ui_mainwindow.h"
#include <QFileDialog>
#include <QtDebug>
MainWindow::MainWindow(QWidget *parent)
: QMainWindow(parent)
, ui(new Ui::MainWindow)
{
ui->setupUi(this);
fileName = QFileDialog::getOpenFileName(this, tr("Open File"),
"/home",
tr("Images (*.png *.xpm *.jpg *.jpeg *.png)"));
QImage image = QImage(fileName);
makeRotate(image);
}
MainWindow::~MainWindow()
{
delete ui;
}
void MainWindow::makeRotate(QImage originalImage)
{
QImage inImage = originalImage; // Copies the original image into a new QImage object.
int width = originalImage.width();
int height = originalImage.height();
QTransform rotate;
rotate.rotate(90);
inImage = inImage.transformed(rotate);
//a double for loop
//first loop through the HEIGHT OF inImage (width of newImage)
for (int i = 0; i < width; i++)
{
//loop through the WIDTH OF inImage (height of newImage)
for (int j = 0; j < height; j++)
{
//set the pixel
QRgb rgb = originalImage.pixel(i, j);
inImage.setPixel(j, i, (rgb));
}
}
QString str = QFileDialog::getSaveFileName(this, tr("Open File"), fileName);
inImage.save(str);
qDebug() << inImage.size();
}
[您需要确保测量值正确,并且如果更改宽度和高度计数器,您的代码可以很好地复制图像(就像我在上面的代码中所做的一样。]