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Added JSON deserializer

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This commit is contained in:
Matt Hill
2014-10-23 17:20:46 -04:00
parent 70ab96a639
commit f18a3b5c54
4 changed files with 84 additions and 3 deletions
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5
src/openalpr/alpr.cpp
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@@ -62,6 +62,11 @@ std::string Alpr::toJson( AlprResults results )
return impl->toJson(results);
}
AlprResults Alpr::fromJson(std::string json) {
return impl->fromJson(json);
}
void Alpr::setDetectRegion(bool detectRegion)
{
impl->setDetectRegion(detectRegion);

2
src/openalpr/alpr.h
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@@ -63,7 +63,6 @@ class AlprPlateResult
virtual ~AlprPlateResult() {};
int requested_topn;
int result_count;
AlprPlate bestPlate;
std::vector<AlprPlate> topNPlates;
@@ -116,6 +115,7 @@ class Alpr
std::string toJson(const AlprResults results);
AlprResults fromJson(std::string json);
bool isLoaded();

79
src/openalpr/alpr_impl.cpp
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@@ -175,7 +175,6 @@ AlprFullDetails AlprImpl::recognizeFullDetails(cv::Mat img, std::vector<cv::Rect
plateResult.topNPlates.push_back(aplate);
}
}
plateResult.result_count = plateResult.topNPlates.size();
if (plateResult.topNPlates.size() > 0)
plateResult.bestPlate = plateResult.topNPlates[bestPlateIndex];
@@ -184,7 +183,7 @@ AlprFullDetails AlprImpl::recognizeFullDetails(cv::Mat img, std::vector<cv::Rect
getTime(&plateEndTime);
plateResult.processing_time_ms = diffclock(platestarttime, plateEndTime);
if (plateResult.result_count > 0)
if (plateResult.topNPlates.size() > 0)
{
plateDetected = true;
response.results.plates.push_back(plateResult);
@@ -360,6 +359,7 @@ cJSON* AlprImpl::createJsonObj(const AlprPlateResult* result)
cJSON_AddNumberToObject(root,"region_confidence", result->regionConfidence);
cJSON_AddNumberToObject(root,"processing_time_ms", result->processing_time_ms);
cJSON_AddNumberToObject(root,"requested_topn", result->requested_topn);
cJSON_AddItemToObject(root, "coordinates", coords=cJSON_CreateArray());
for (int i=0;i<4;i++)
@@ -388,6 +388,81 @@ cJSON* AlprImpl::createJsonObj(const AlprPlateResult* result)
return root;
}
AlprResults AlprImpl::fromJson(std::string json) {
AlprResults allResults;
cJSON* root = cJSON_Parse(json.c_str());
int version = cJSON_GetObjectItem(root, "version")->valueint;
allResults.epoch_time = (long) cJSON_GetObjectItem(root, "epoch_time")->valuedouble;
allResults.img_width = cJSON_GetObjectItem(root, "img_width")->valueint;
allResults.img_height = cJSON_GetObjectItem(root, "img_height")->valueint;
allResults.total_processing_time_ms = cJSON_GetObjectItem(root, "processing_time_ms")->valueint;
cJSON* rois = cJSON_GetObjectItem(root,"regions_of_interest");
int numRois = cJSON_GetArraySize(rois);
for (int c = 0; c < numRois; c++)
{
cJSON* roi = cJSON_GetArrayItem(rois, c);
int x = cJSON_GetObjectItem(roi, "x")->valueint;
int y = cJSON_GetObjectItem(roi, "y")->valueint;
int width = cJSON_GetObjectItem(roi, "width")->valueint;
int height = cJSON_GetObjectItem(roi, "height")->valueint;
AlprRegionOfInterest alprRegion(x,y,width,height);
allResults.regionsOfInterest.push_back(alprRegion);
}
cJSON* resultsArray = cJSON_GetObjectItem(root,"results");
int resultsSize = cJSON_GetArraySize(resultsArray);
for (int i = 0; i < resultsSize; i++)
{
cJSON* item = cJSON_GetArrayItem(resultsArray, i);
AlprPlateResult plate;
//plate.bestPlate = cJSON_GetObjectItem(item, "plate")->valuestring;
plate.processing_time_ms = cJSON_GetObjectItem(item, "processing_time_ms")->valuedouble;
plate.region = cJSON_GetObjectItem(item, "region")->valuestring;
plate.regionConfidence = cJSON_GetObjectItem(item, "region_confidence")->valueint;
plate.requested_topn = cJSON_GetObjectItem(item, "requested_topn")->valueint;
cJSON* coordinates = cJSON_GetObjectItem(item,"coordinates");
for (int c = 0; c < 4; c++)
{
cJSON* coordinate = cJSON_GetArrayItem(coordinates, c);
AlprCoordinate alprcoord;
alprcoord.x = cJSON_GetObjectItem(coordinate, "x")->valueint;
alprcoord.y = cJSON_GetObjectItem(coordinate, "y")->valueint;
plate.plate_points[c] = alprcoord;
}
cJSON* candidates = cJSON_GetObjectItem(item,"candidates");
int numCandidates = cJSON_GetArraySize(candidates);
for (int c = 0; c < numCandidates; c++)
{
cJSON* candidate = cJSON_GetArrayItem(candidates, c);
AlprPlate plateCandidate;
plateCandidate.characters = cJSON_GetObjectItem(candidate, "plate")->valuestring;
plateCandidate.overall_confidence = cJSON_GetObjectItem(candidate, "confidence")->valuedouble;
plateCandidate.matches_template = (cJSON_GetObjectItem(candidate, "matches_template")->valueint) != 0;
plate.topNPlates.push_back(plateCandidate);
}
allResults.plates.push_back(plate);
}
cJSON_Delete(root);
return allResults;
}
void AlprImpl::setDetectRegion(bool detectRegion)
{

1
src/openalpr/alpr_impl.h
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@@ -80,6 +80,7 @@ class AlprImpl
void setDefaultRegion(std::string region);
std::string toJson( const AlprResults results );
AlprResults fromJson(std::string json);
static std::string getVersion();
Config* config;