painter:image(x,y,[w,h],image,[sx,sy,[sw,sh]])

Function painter:image paints a segment of image image at position (x,y) in the current coordinate systems with with w and height h. The source segment is defined by the rectangle of size (sw,sh) starting on point (sx,sy).

The default source width sw and height sh are the width and height of the source image. The default source origin (sx,sy) is the origin (0,0). The default target width w and height h are the source width sw and height sh.

Argument image can be a Qt variant of class qt.QImage or qt.QPixmap or a Qt object of class =qt.QtLuaPainter. In the latter case, the function painter:image() without arguments is used to obtain the source surface.

To blit an image img constructed with qtwidget.newimage, you must specify the associated painter img.port.

To blit a torch.Tensor, first create a qt.QImage using the function qt.QImage.fromTensor from by package qttorch.

Blit is of course affected by the current composition mode.

Note that this function must be invoked with arguments. Otherwise see the documentation for painter:image().