# MediaPipe graph that performs GPU Sobel edge detection on a live video stream. # Used in the examples in # mediapipe/examples/android/src/java/com/google/mediapipe/apps/basic:helloworld # and mediapipe/examples/ios/helloworld. # Images coming into and out of the graph. input_stream: "input_video" output_stream: "output_video" # Converts RGB images into luminance images, still stored in RGB format. node: { calculator: "LuminanceCalculator" input_stream: "input_video" output_stream: "luma_video" } # Applies the Sobel filter to luminance images stored in RGB format. node: { calculator: "SobelEdgesCalculator" input_stream: "luma_video" output_stream: "output_video" }