在此记录一下实例分割coco的annotations.json 的格式
python">''
annotations. json , 整体是一个字典:
{
"info" : { "description" : null,
"url" : null,
"version" : null,
"year" : 2023 ,
"contributor" : null,
"date_created" : "2023-05-27 10:34:38.709025" } ,
"licenses" : [ { "url" : null, "id" : 0 , "name" : null} ] ,
"images" : [ { "license" : 0 ,
"url" : null,
"file_name" : "....jpg" ,
"height" : 800 , "width" : 800 ,
"date_captured" : null, "id" : 0 } ,
{ . . . } ,
. . . ,
{ . . . } ]
"type" : "instances" ,
"annotations" : [ { "id" : 0 , "image_id" : 0 , "category_id" : 1 ,
"segmentation" : [ [ polygon] ] , "area" : 57142.0 ,
"bbox" : [ 246.0 , 165.0 , 310.0 , 239.0 ] ( [ x, y, width, height] , 即左上角的坐标+ 宽高) , "iscrowd" : 0 } ,
{ "id" : 1 , "image_id" : 0 , "category_id" : 1 ,
"segmentation" : [ [ polygon] ] , "area" : 59602.0 ,
"bbox" : [ 248.0 , 164.0 , 311.0 , 238.0 ] , "iscrowd" : 0 } ,
{ . . . } ,
. . . ,
{ . . . } ] ,
"categories" : [ { "supercategory" : null, "id" : 0 , "name" : "_background_" } ,
{ "supercategory" : null, "id" : 1 , "name" : "cell" } ]
}
''