I want to crop a selected a rectangle area in live video feed and save those area or image in my local drive

[robotsandi]

@robotsandi
Is that correct
mCameraImageCapture->setCaptureDestination(QCameraImageCapture::CaptureToBuffer);
to mCameraImage Capture is store image in buffer??

[robotsandi]

@robotsandi
QPixmap original("mCameraImageCapture");
QPixmap cropped = original.copy(x1, y1, width, height);
cropped.save(filename);
is pic is not save

[mrjj]

Yes it think its ok.
But not used in sample so might not be needed.
They just setup
imageCapture = new QCameraImageCapture(camera);
and hook up signal
connect(imageCapture, &QCameraImageCapture::imageCaptured, this, &Camera::processCapturedImage);
and then do

void Camera::processCapturedImage(int requestId, const QImage& img)
{
    Q_UNUSED(requestId);
    QImage scaledImage = img.scaled(ui->viewfinder->size(),
                                    Qt::KeepAspectRatio,
                                    Qt::SmoothTransformation);

    ui->lastImagePreviewLabel->setPixmap(QPixmap::fromImage(scaledImage));

    // Display captured image for 4 seconds.
    displayCapturedImage();
    QTimer::singleShot(4000, this, &Camera::displayViewfinder);
}