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63 lines
1.6 KiB
C++
63 lines
1.6 KiB
C++
// Copyright 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 Lovell Fuller and contributors.
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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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#ifndef SRC_STATS_H_
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#define SRC_STATS_H_
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#include <string>
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#include <napi.h>
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#include "./common.h"
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struct ChannelStats {
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// stats per channel
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int min;
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int max;
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double sum;
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double squaresSum;
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double mean;
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double stdev;
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int minX;
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int minY;
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int maxX;
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int maxY;
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ChannelStats(int minVal, int maxVal, double sumVal, double squaresSumVal,
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double meanVal, double stdevVal, int minXVal, int minYVal, int maxXVal, int maxYVal):
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min(minVal), max(maxVal), sum(sumVal), squaresSum(squaresSumVal),
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mean(meanVal), stdev(stdevVal), minX(minXVal), minY(minYVal), maxX(maxXVal), maxY(maxYVal) {}
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};
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struct StatsBaton {
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// Input
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sharp::InputDescriptor *input;
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// Output
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std::vector<ChannelStats> channelStats;
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bool isOpaque;
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double entropy;
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std::string err;
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StatsBaton():
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input(nullptr),
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isOpaque(true),
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entropy(0.0)
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{}
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};
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Napi::Value stats(const Napi::CallbackInfo& info);
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#endif // SRC_STATS_H_
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