這篇文章主要介紹“Halcon怎么讀取json文件”,在日常操作中,相信很多人在Halcon怎么讀取json文件問題上存在疑惑,小編查閱了各式資料,整理出簡單好用的操作方法,希望對大家解答”Halcon怎么讀取json文件”的疑惑有所幫助!接下來,請跟著小編一起來學習吧!
①定義
get_dict_tuple( DictHandle, Key , Tuple)
DictHandle:字典句柄
key:鍵
tuple:根據Key在句柄下取內容,存放到tuple中
②功能:從字典中檢索與鍵關聯的元組
①定義
get_dict_param( DictHandle, GenParamName, Key ,GenParamValue)
DictHandle:字典句柄
GenParamName:根據參數在字典中查詢相關信息。當填寫’keys’時,默認取所有元素
key:鍵??梢圆惶顑热?,直接寫 []
GenParamValue:讀取的內容存放
②功能:查詢字典參數或有關字典的信息。
有些原理我也不是特別清楚,但通過實踐幾次之后,略有所感。所有,實踐是檢驗真理的唯一標準,多動手。
************以下是我json文件內容*************** * {"path":"C:\\Users\\Administrator\\Desktop\\算子開發任務書\\000001.png", * "outputs":{"object":[{"name":"sharp","polygon":{"x1":2613,"y1":418,"x2":2686,"y2":1218,"x3":2722,"y3":2054,"x4":2759,"y4":2372,"x5":2795,"y5":2445,"x6":2759,"y6":3136,"x7":2777,"y7":3136,"x8":2831,"y8":2881,"x9":2904,"y9":4263,"x10":3013,"y10":4263,"x11":3013,"y11":3900,"x12":3086,"y12":3881,"x13":3140,"y13":4263,"x14":3268,"y14":4263,"x15":3086,"y15":2972,"x16":3131,"y16":2900,"x17":3177,"y17":3100,"x18":3231,"y18":3109,"x19":3050,"y19":2154,"x20":3122,"y20":2172,"x21":3013,"y21":1072,"x22":2977,"y22":336,"x23":2868,"y23":309,"x24":2904,"y24":590,"x25":2777,"y25":572,"x26":2722,"y26":372}}]}, * "time_labeled":1582335060421, * "labeled":true, * "size":{"width":3798,"height":8748,"depth":3}} *讀取json文件,將內容放入字典中 read_dict('data.json',[],[],DictJson) *取字典中所有關鍵字 get_dict_param(DictJson,'keys',[],ALLKeys) *讀取outputs下的內容 get_dict_tuple(DictJson,'outputs',outputsDict) *取字典中所有關鍵字 *這一步其實是對outputs內容的讀取,但讀取的內容可能是地址信息 get_dict_param(outputsDict,'keys',[],outputsDictAllKeys) *根據‘地址'信息將內容讀入到元組中 get_dict_tuple(outputsDict,outputsDictAllKeys,outputsObjectDict) *讀取元組數據 get_dict_param(outputsObjectDict,'keys',[],outputsObjectDictALLKeys) *元組中數據數量統計(其中元組中有小元組,而數量是指小元組的數量) num:=|outputsObjectDictALLKeys| *遍歷 for keysIndex:=0 to num-1 by 1 try get_dict_tuple(outputsObjectDict,outputsObjectDictALLKeys[keysIndex],objectDict) get_dict_param(objectDict,'keys',[],objectDictAllKeys) *標注類型 矩形框還是多邊形 objectShape:=objectDictAllKeys[1] get_dict_tuple (objectDict, objectDictAllKeys[1], objectLabelPosition) get_dict_param(objectLabelPosition,'keys',[],objectLabelPositionDictAllKeys) *矩形框 if(objectShape='bndbox') get_dict_tuple(objectLabelPosition,objectLabelPositionDictAllKeys[0],xMin) get_dict_tuple (objectLabelPosition, objectLabelPositionDictAllKeys[1], yMin) get_dict_tuple (objectLabelPosition, objectLabelPositionDictAllKeys[2], xMax) get_dict_tuple (objectLabelPosition, objectLabelPositionDictAllKeys[3], yMax) *創建一個矩形 gen_rectangle1(labelRegion,yMin,xMin,yMax,xMax) endif *多邊形 if(objectShape='polygon') bufX:=[] bufY:=[] for keysIndex0:=0 to |objectLabelPositionDictAllKeys|/2-1 by 1 xAddr:=keysIndex0*2 yAddr:=xAddr+1 get_dict_tuple (objectLabelPosition, objectLabelPositionDictAllKeys[xAddr], positionX) bufX:=[bufX,positionX] get_dict_tuple (objectLabelPosition, objectLabelPositionDictAllKeys[yAddr], positionY) bufY:=[bufY,positionY] endfor bufX:=[bufX,bufX[0]] bufY:=[bufY,bufY[0]] *創建多邊形 gen_region_polygon(labelRegion,bufY,bufX) fill_up(labelRegion,labelRegion) endif *讀取 name 內容,存放到objectName中 get_dict_tuple(objectDict,objectDictAllKeys[0],objectName) catch (Exception) endtry endfor
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