Commit 153fd33cba2201e7bba8a8c94d51d4705fcc8060
Merge pull request #383 from biometrics/filterMetadata
Filter metadata
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openbr/plugins/metadata/filtermetadata.cpp
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| 1 | +/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * | ||
| 2 | + * Copyright 2015 Rank One Computing Corporation * | ||
| 3 | + * * | ||
| 4 | + * Licensed under the Apache License, Version 2.0 (the "License"); * | ||
| 5 | + * you may not use this file except in compliance with the License. * | ||
| 6 | + * You may obtain a copy of the License at * | ||
| 7 | + * * | ||
| 8 | + * http://www.apache.org/licenses/LICENSE-2.0 * | ||
| 9 | + * * | ||
| 10 | + * Unless required by applicable law or agreed to in writing, software * | ||
| 11 | + * distributed under the License is distributed on an "AS IS" BASIS, * | ||
| 12 | + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * | ||
| 13 | + * See the License for the specific language governing permissions and * | ||
| 14 | + * limitations under the License. * | ||
| 15 | + * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ | ||
| 16 | + | ||
| 17 | +#include <openbr/plugins/openbr_internal.h> | ||
| 18 | + | ||
| 19 | +namespace br | ||
| 20 | +{ | ||
| 21 | + | ||
| 22 | +/*! | ||
| 23 | + * \ingroup transforms | ||
| 24 | + * \brief Filters templates such that the only remaining template wills have metadata values witihin the | ||
| 25 | + * the specified ranges. | ||
| 26 | + * \br_property QString key1,key2 The meta-data key(s) to filter on | ||
| 27 | + * \br_property float value1,value2 The values to compare the values of key1 and key2 entires against | ||
| 28 | + * \br_property QString compareType1 The comparison operation to perform. "le" -> val(key1) <= value1, "lt" -> val(key1) < value1, | ||
| 29 | + * "ge" -> val(key1) >= value1, "gt" -> val(key1) > value1. | ||
| 30 | + * \author Brendan Klare \cite bklare | ||
| 31 | + */ | ||
| 32 | +class FilterMetadataTransform : public UntrainableMetaTransform | ||
| 33 | +{ | ||
| 34 | + Q_OBJECT | ||
| 35 | + Q_PROPERTY(QString key1 READ get_key1 WRITE set_key1 RESET reset_key1 STORED false) | ||
| 36 | + Q_PROPERTY(QString compareType1 READ get_compareType1 WRITE set_compareType1 RESET reset_compareType1 STORED false) | ||
| 37 | + Q_PROPERTY(float value1 READ get_value1 WRITE set_value1 RESET reset_value1 STORED false) | ||
| 38 | + BR_PROPERTY(QString, key1, "") | ||
| 39 | + BR_PROPERTY(QString, compareType1, "") | ||
| 40 | + BR_PROPERTY(float, value1, 0) | ||
| 41 | + | ||
| 42 | + bool getCompare(float val1, float val2, QString compareType) const | ||
| 43 | + { | ||
| 44 | + bool pass = false; | ||
| 45 | + if (compareType == "gt") | ||
| 46 | + pass = val1 > val2; | ||
| 47 | + else if (compareType == "ge") | ||
| 48 | + pass = val1 >= val2; | ||
| 49 | + else if (compareType == "lt") | ||
| 50 | + pass = val1 < val2; | ||
| 51 | + else if (compareType == "le") | ||
| 52 | + pass = val1 <= val2; | ||
| 53 | + else | ||
| 54 | + qDebug() << "Unknown compare type: " << compareType; | ||
| 55 | + return pass; | ||
| 56 | + } | ||
| 57 | + | ||
| 58 | + void project(const Template &, Template &) const | ||
| 59 | + { | ||
| 60 | + qFatal("Filter can't do anything here"); | ||
| 61 | + } | ||
| 62 | + | ||
| 63 | + void project(const TemplateList &src, TemplateList &dst) const | ||
| 64 | + { | ||
| 65 | + foreach (const Template &srcTemp, src) | ||
| 66 | + { | ||
| 67 | + if (!srcTemp.file.contains(key1)) | ||
| 68 | + continue; | ||
| 69 | + | ||
| 70 | + if (getCompare(srcTemp.file.get<float>(key1), value1, compareType1)) | ||
| 71 | + dst.append(srcTemp); | ||
| 72 | + } | ||
| 73 | + } | ||
| 74 | + | ||
| 75 | +}; | ||
| 76 | + | ||
| 77 | +BR_REGISTER(Transform, FilterMetadataTransform) | ||
| 78 | + | ||
| 79 | +} // namespace br | ||
| 80 | + | ||
| 81 | +#include "metadata/filtermetadata.moc" |