# Converts hand landmarks to ROI.
type: "HandLandmarksToRoi"
# Hand landmarks. (NormalizedLandmarkList)
input_stream: "LANDMARKS:hand_landmarks"
# Image size (width & height). (std::pair<int, int>)
input_stream: "IMAGE_SIZE:image_size"
# ROI according to the hand landmarks. (NormalizedRect)
output_stream: "ROI:roi"
# Converts the hand landmarks into a rectangle (normalized by image size)
# that encloses the hand.
node {
calculator: "HandLandmarksToRectCalculator"
input_stream: "NORM_LANDMARKS:hand_landmarks"
input_stream: "IMAGE_SIZE:image_size"
output_stream: "NORM_RECT:palm_landmarks_rect"
}
# Expands the hand rectangle so that it's likely to contain the hand even with
# some motion.
node {
calculator: "RectTransformationCalculator"
input_stream: "NORM_RECT:palm_landmarks_rect"
input_stream: "IMAGE_SIZE:image_size"
output_stream: "roi"
options: {
[mediapipe.RectTransformationCalculatorOptions.ext] {
scale_x: 2.0
scale_y: 2.0
shift_y: -0.1
square_long: true
}
}
}