Contert int matrix to QPixmap

AlvaroS

hello everyone:

First of all thanks a lot for reading this post and being able to help:

I have a matrix like:

int **matrix;

with specific size.

I would like to transform this matrix (a element is a pixel of the image) to a QPixmap to visualize the image in a scene.

how can I do that¿?

PD: From QImage to int** matrix the code looks like:

            matrix = new int *[img.width()];

            for(int i=0;i<img.width();++i)
                matrix[i] = new int [img.height()];

            for(int i=0;i<img.width();++i){
                for(int j=0;j<img.height();++j)
                    matrix[i][j] = QColor(img.pixel(i,j)).black() > 127 ? 0:1;
            }

So the invert way to QPixmap?

Thanks a lot.

Hi! The way to convert your matrix to a QPixmap is to convert it to QImage first (e.g. using void QImage::setPixel(const QPoint &position, uint index_or_rgb)) and then convert the QImage to a QPixmap (using [static] QPixmap QPixmap::fromImage(const QImage &image, Qt::ImageConversionFlags flags = Qt::AutoColor)).