new PhotoEditorSDK.Operations.ArtFilterOperation.TensorFilters.UnpackRGBAFilter()
sdk/operations/art-filter-operation/filters/unpack-rgba-filter.js, line 30
Expects a 2D input shape representing an RGBA encoded image. The values will be expanded from the RGB to the R channel by forming the logical shape of [1, height, width, 3], which can then be used as an input for neural network structures. To ease implementation, we require the texture dimensions to match the inputs logical shape