39 lines
1.4 KiB
Protocol Buffer
39 lines
1.4 KiB
Protocol Buffer
// Copyright 2018 The MediaPipe Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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syntax = "proto2";
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package mediapipe;
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option java_package = "com.google.mediapipe.formats.annotation.proto";
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option java_outer_classname = "RasterizationProto";
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// A Region can be represented in each frame as a set of scanlines
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// (compressed RLE, similar to rasterization of polygons).
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// For each scanline with y-coordinate y, we save (possibly multiple) intervals
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// of occupied pixels represented as a pair [left_x, right_x].
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message Rasterization {
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message Interval {
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required int32 y = 1;
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required int32 left_x = 2;
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required int32 right_x = 3;
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}
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// Intervals are always sorted by y-coordinate.
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// Therefore, a region occupies a set of scanlines ranging
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// from interval(0).y() to interval(interval_size() - 1)).y().
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// Note: In video, at some scanlines no interval might be present.
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repeated Interval interval = 1;
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}
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