BandMath|out Outputs a monoband image which is the result of a mathematical operation on several multi-band images. Image Manipulation QgsProcessingParameterMultipleLayers|il|Input image list|3|None|False QgsProcessingParameterRasterDestination|out|Output Image|None|False QgsProcessingParameterString|exp|Expression|None|False|False *QgsProcessingParameterEnum|outputpixeltype|Output pixel type|uint8;int;float;double|False|2|True