| #include "json.h" |
| #include "adaboost.h" |
|
|
| char* readJson() |
| { |
| FILE* file = NULL; |
| file = fopen("training.json", "r"); |
|
|
| if (file == NULL) |
| { |
| return NULL; |
| } |
| else |
| { |
| fseek(file, 0, SEEK_END); |
| long fsize = ftell(file); |
| fseek(file, 0, SEEK_SET); |
|
|
| char *string = malloc(fsize + 1); |
| fread(string, fsize, 1, file); |
| fclose(file); |
|
|
| string[fsize] = 0; |
|
|
| return string; |
| } |
| } |
|
|
|
|
| SCList* dbExtract() |
| { |
| char* str = readJson(); |
|
|
| if (str == NULL) |
| { |
| printf("error: can not read training database\n"); |
| |
| exit(0); |
| } |
| else |
| { |
| json_object *jobj = json_tokener_parse(str); |
| return jsonToStrongClassifierList(jobj); |
| } |
| } |
|
|
|
|
| SCList* jsonToStrongClassifierList(json_object* jStrongList) |
| { |
| int len = json_object_array_length(jStrongList); |
|
|
| SCList *old = NULL; |
|
|
| for (int i = len - 1; i >= 0; i--) |
| { |
| json_object *jStrongElt; |
| jStrongElt = json_object_array_get_idx(jStrongList, i); |
|
|
| SCList *strongList = malloc(sizeof(SCList));; |
|
|
| strongList->sc = jsonToStrongClassifier(jStrongElt); |
| strongList->next = old; |
|
|
| old = strongList; |
| } |
|
|
| return old; |
|
|
| } |
|
|
|
|
| StrongClassifier jsonToStrongClassifier(json_object *jStrongClass) |
| { |
| StrongClassifier strongClass; |
|
|
| json_object *jWeakL, *jTotalT, *jFalseNegative, *jWeakNumber; |
| json_object_object_get_ex(jStrongClass, "weak_classifier_list", &jWeakL); |
| json_object_object_get_ex(jStrongClass, "total_threshold", &jTotalT); |
| json_object_object_get_ex(jStrongClass, "false_negative", &jFalseNegative); |
| json_object_object_get_ex(jStrongClass, "weak_number", &jWeakNumber); |
|
|
| strongClass.weak = jsonToWeakClassifierList(jWeakL); |
| strongClass.totalThreshold = json_object_get_double(jTotalT); |
| strongClass.falseNegative = json_object_get_double(jFalseNegative); |
| strongClass.weakNumber = json_object_get_int(jWeakNumber); |
|
|
| return strongClass; |
| } |
|
|
|
|
| ClassifierList* jsonToWeakClassifierList(json_object *jWeakList) |
| { |
| int len = json_object_array_length(jWeakList); |
|
|
| ClassifierList *old = NULL; |
|
|
| for (int i = len - 1; i >= 0; i--) |
| { |
| json_object *jWeakElt, *jWeight, *jWeakClass; |
| jWeakElt = json_object_array_get_idx(jWeakList, i); |
|
|
| json_object_object_get_ex(jWeakElt, "weight", &jWeight); |
| json_object_object_get_ex(jWeakElt, "weak_classifier", &jWeakClass); |
|
|
|
|
|
|
| ClassifierList *weakList = malloc(sizeof(ClassifierList));; |
| weakList->weight = json_object_get_double(jWeight); |
|
|
| weakList->class = jsonToWeakClassifier(jWeakClass); |
| weakList->next = old; |
|
|
| old = weakList; |
| } |
|
|
| return old; |
| } |
|
|
|
|
| WeakClassifier jsonToWeakClassifier(json_object *jWeakClass) |
| { |
| WeakClassifier weakClass; |
|
|
| json_object *jXmin, *jYmin, *jXmax, *jYmax, *jType, *jParity, *jThreshold; |
| json_object_object_get_ex(jWeakClass, "xmin", &jXmin); |
| json_object_object_get_ex(jWeakClass, "ymin", &jYmin); |
| json_object_object_get_ex(jWeakClass, "xmax", &jXmax); |
| json_object_object_get_ex(jWeakClass, "ymax", &jYmax); |
|
|
| json_object_object_get_ex(jWeakClass, "type", &jType); |
| json_object_object_get_ex(jWeakClass, "parity", &jParity); |
| json_object_object_get_ex(jWeakClass, "threshold", &jThreshold); |
|
|
|
|
| weakClass.xmin = json_object_get_int(jXmin); |
| weakClass.ymin = json_object_get_int(jYmin); |
| weakClass.xmax = json_object_get_int(jXmax); |
| weakClass.ymax = json_object_get_int(jYmax); |
|
|
| weakClass.type = json_object_get_int(jType); |
| weakClass.parity = json_object_get_int(jParity); |
| weakClass.threshold = json_object_get_double(jThreshold); |
|
|
| return weakClass; |
| } |
|
|
|
|
