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到此,關于“Halcon怎么讀取json文件”的學習就結束了,希望能夠解決大家的疑惑。理論與實踐的搭配能更好的幫助大家學習,快去試試吧!若想繼續學習更多相關知識,請繼續關注億速云網站,小編會繼續努力為大家帶來更多實用的文章!
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