Change XYZ tile to Color Rendering to Grayscale

Question

I want to change Color rendering of the XYZ tile(namely google satellite). In case of raster image we can easily convert using following code.

layer = iface.activeLayer()
myGrayRenderer = QgsSingleBandGrayRenderer(layer.dataProvider(),1)
layer.setRenderer(myGrayRenderer)

But this does not seems work with XYZ tile.

Answer 1

Use the QgsHueSaturationFilter class:

layer = iface.activeLayer()
huesat = QgsHueSaturationFilter()
huesat.setGrayscaleMode(1)

layer.pipe().set(huesat)
layer.triggerRepaint()

Documentation : QgsHueSaturationFilter PyQGIS class