一個學習找邊的例項
邊緣檢測的步驟圖解
步驟
1.透過Blob方法獲取需要測量的Region
1.1 主要運用影像形態學、二值化
2.建立測量控制代碼
2.1 create_metrology_model (MetrologyHandle)
3.設定目標影像大小
3.1 set_metrology_model_image_size (MetrologyHandle, Width, Height)
4.新增測量物件
4.1 (通用運算元) 預設值:‘circle’,參考值:‘circle’圓,‘ellipse’橢圓,‘line’線,‘rectangle2’矩形,長方形;
add_metrology_object_generic (MetrologyHandle, 'line', LineParam, 20, 5, 1, 30, [], [], Index)
4.2 *circle 圓形工具
add_metrology_object_circle_measure (MetrologyHandle, Row1, Column1, Row1, 20, 5, 1, 30, [], [], Index1)
4.3 circle 橢圓工具
add_metrology_object_ellipse_measure (MetrologyHandle, Row1, Column1, Index1, Index1, Index1, 20, 5, 1, 30, [], [], Index2)
4.4 rectangle 矩形工具
add_metrology_object_rectangle2_measure (MetrologyHandle, Row1, Column1, Index3, Index3, Index3, 20, 5, 1, 30, [], [], Index4)
4.5 line 直線工具
add_metrology_object_line_measure (MetrologyHandle, Row1, Column1, Row2, Column2, 20, 5, 1, 30, [], [], Index)
5.設定測量引數
5.1 *設定找線的方式(positive,negative,all)從黑到白,從白到黑
set_metrology_object_param (MetrologyHandle, 'all', 'measure_transition', 'all')
5.2 *預期測量的區域個數
set_metrology_object_param (MetrologyHandle, 'all', 'num_instances', 12)
5.3*擬合數
set_metrology_object_param (MetrologyHandle, 'all', 'num_instances', 6)
5.4*高斯平滑係數,值越大,唯一的邊緣越清晰
set_metrology_object_param (MetrologyHandle, 'all', 'measure_sigma', 5)
5.5 *區域,垂直與邊界的測量區域的一半長度
set_metrology_object_param (MetrologyHandle, 'all', 'measure_length1', 80)
5.6 *區域,相切於邊緣的測量區域的一半長度
set_metrology_object_param(MetrologyHandle, 'all', 'measure_length2', 10)
5.7 *最小邊緣幅度越大,要求找到的邊緣越銳利(灰度變換明顯),反而不容易找到邊緣
set_metrology_object_param (MetrologyHandle, 'all', 'measure_threshold', 20)
5.8 *測量雙立方插入值,區別與bilinear雙線性
set_metrology_object_param (MetrologyHandle, 'all', 'measure_interpolation', 'bicubic')
5.9 *取值 all,first,best,last
set_metrology_object_param (MetrologyHandle, 'all', 'measure_select', 'all')
5.10 *設定最小分數0.7
set_metrology_object_param (MetrologyHandle, 'all', 'min_score', 0.7)
6.執行測量,獲取邊緣點集
7.獲取最終測量資料和輪廓
8.釋放測量控制代碼
程式碼
dev_get_window (WindowHandle) *讀取影像 read_image (Image, 'printer_chip/printer_chip_01') *獲取影像大小 get_image_size (Image, Width, Height) *方式一繪製測量位置直線 *draw_line (WindowHandle, Row1, Column1, Row2, Column2) *方式二 固定測量位置直線座標 Row1 := 19.9 Column1 := 810 Row2 := 271.9 Column2 := 808.5 *根據繪製的直線座標來構建引數物件 LineParam := [Row1, Column1,Row2, Column2] *繪製測量位置直線 時把直線的座標寫入文字檔案,以變檢視。這樣就可以知道繪製的座標。 *實際測量時是不可能讓人,手動的去繪製每張要測量的圖片的 open_file ('LineParam.txt', 'output', FileHandle) fileStr := '線的座標Row1:'+Row1+',Column1:'+Column1+',Row2:'+Row2+',Column2:'+Column2 fwrite_string (FileHandle, fileStr) disp_message (WindowHandle, fileStr, 'window', 0, 0, 'red', 'true') *建立計算測量控制代碼 create_metrology_model (MetrologyHandle) *控制代碼關聯測試的圖座標位置 *設定測量物件影像的大小 *引數: * MeasureHandle:輸入測量模型的控制代碼; * Width:輸出影像寬; * Height:輸出影像高; set_metrology_model_image_size (MetrologyHandle, Width, Height) *新增測量模型物件(此處是線) *將測量物件新增到測量模型中 *運算元引數: * MeasureHandle:輸入測量模型的控制代碼; * Shape:輸入要測量物件的型別;預設值:‘circle’,參考值:‘circle’圓,‘ellipse’橢圓,‘line’線,‘rectangle2’矩形,長方形; * ShapeParam:要新增的測量物件的引數。 * MeasureLength1:輸入垂直於邊界的測量區域的一半長度;預設值:20,參考值:10,20,30;最小增量:1.0;建議增量:10.0 * MeasureLength2:輸入與邊界相切的測量區域的一半長度;預設值:5,參考值:3,5,10;最小增量:1.0;建議增量:10.0 * MeasureSigma:輸入用於平滑的高斯函式的sigma;預設值:1,參考值:0.4,0.6,0.8,1.0,1.5,2.0,3.0,4.0,5.0,7.0,10.0;最小增量:0.01;建議增量:0.1;限制:(0.4 <= MeasureSigma)&&(MeasureSigma <= 100) * MeasureThreshold:輸入測量閾值/最小邊緣幅度;預設值:30,參考值:5.0, 10.0, 20.0, 30.0, 40.0, 50.0, 60.0, 70.0, 90.0, 110.0;最小增量:0.5;建議增量:2; * GenParamName:輸入引數名稱;參考: ‘distance_threshold’, ‘end_phi’, ‘instances_outside_measure_regions’, ‘max_num_iterations’, ‘measure_distance’, ‘measure_interpolation’, ‘measure_select’, ‘measure_transition’, ‘min_score’, ‘num_instances’, ‘num_measures’, ‘point_order’, ‘rand_seed’, ‘start_phi’; * GenParamValue:輸入引數值;參考:1, 2, 3, 4, 5, 10, 20, ‘all’, ‘true’, ‘false’, ‘first’, ‘last’, ‘positive’, ‘negative’, ‘uniform’, ‘nearest_neighbor’, ‘bilinear’, ‘bicubic’; * Index:輸出建立測量物件的索引值; add_metrology_object_generic (MetrologyHandle, 'line', LineParam, 20, 5, 1, 30, [], [], Index) *為測量模型的測量物件設定引數 set_metrology_object_param *根據需求設定測量的引數 *設定找線的方式(positive,negative,all)從黑到白,從白到黑 *運算元引數: * MeasureHandle:輸入測量模型的控制代碼; * Index:指定測量物件,為all時所有計量物件的引數都被設定(‘all’); * GenParamName:輸入引數名稱;預設:‘num_instances’,參考: * 'measure_length1':區域,垂直於邊界的測量區域的一半長度 * 'measure_length2':區域,相切於邊界的測量區域的一半長度 * 'measure_distance':區域,兩個測量區域中心之間的距離 * 'num_measures':區域,測量區域數 * 'measure_sigma':測量,用於平滑的高斯函式的 Sigma * 'measure_threshold':測量,最小邊緣幅度閾值 * 'measure_select':測量,邊緣端點的選擇('last'、'first') * 'measure_transition':測量,方向('all'、'negative'、 'positive') * 'measure_interpolation':測量,插值型別 * 'min_score':擬合,最小分數 * 'num_instances':擬合,成功擬合例項的最大數量 * 'distance_threshold':擬合,距離閾值 set_metrology_object_param (MetrologyHandle, 'all', 'measure_transition', 'all') *預期測量的區域個數 set_metrology_object_param (MetrologyHandle, 'all', 'num_instances', 12) *擬合數 set_metrology_object_param (MetrologyHandle, 'all', 'num_instances', 6) *高斯平滑係數,值越大,唯一的邊緣越清晰 set_metrology_object_param (MetrologyHandle, 'all', 'measure_sigma', 5) *區域,垂直與邊界的測量區域的一半長度 set_metrology_object_param (MetrologyHandle, 'all', 'measure_length1', 80) *區域,相切於邊緣的測量區域的一半長度 set_metrology_object_param(MetrologyHandle, 'all', 'measure_length2', 10) *最小邊緣幅度越大,要求找到的邊緣越銳利(灰度變換明顯),反而不容易找到邊緣 set_metrology_object_param (MetrologyHandle, 'all', 'measure_threshold', 20) *測量雙立方插入值,區別與bilinear雙線性 set_metrology_object_param (MetrologyHandle, 'all', 'measure_interpolation', 'bicubic') *取值 all,first,best,last set_metrology_object_param (MetrologyHandle, 'all', 'measure_select', 'all') *設定最小分數0.7 set_metrology_object_param (MetrologyHandle, 'all', 'min_score', 0.7) *開始找邊緣 apply_metrology_model (Image, MetrologyHandle) *獲取測量區域找到的邊緣座標集合 get_metrology_object_measures (Contours, MetrologyHandle, 'all', 'all', Row, Column) *把找到的點透過十字叉來顯示 gen_cross_contour_xld (Cross, Row, Column, 6, 0.785398) *得到線的起點座標並顯示出來 get_metrology_object_result (MetrologyHandle, 0, 'all', 'result_type', 'all_param', Parameter) *獲取計量模型的計量結果輪廓 get_metrology_object_result_contour (Contour, MetrologyHandle, 0, 'all', 1.5) *取第一條邊放到ObjectSelected變數中 select_obj (Contour, ObjectSelected, 1) *取第二條邊放到ObjectSelected1變數中 select_obj (Contour, ObjectSelected1, 2) *測量兩個輪廓之間的距離 distance_cc (ObjectSelected, ObjectSelected1, 'point_to_point', DistanceMin, DistanceMax) disp_message (WindowHandle, 'length:'+DistanceMin, 'window', 20, 0, 'green', 'true') *清除控制代碼 clear_metrology_model (MetrologyHandle)
結果
部分引數說明
*line 直線工具
*新增直線測量物件到模型
*函式引數:
* MeasureHandle:輸入測量模型的控制代碼;
* RowBegin:輸入測量區域行座標起點;(測量直線的第一個點X座標)
* ColumnBegin:輸入測量區域列座標起點;(測量直線的第一個點Y座標)
* RowEnd:輸入測量區域行座標終點;(測量直線的第二個點X座標)
* ColumnEnd:輸入測量區域列座標終點;(測量直線的第二個點Y座標)
* MeasureLength1:輸入垂直於邊界的測量區域的一半長度;預設值:20,參考值:10,20,30;
* MeasureLength2:輸入與邊界相切的測量區域的一半長度;預設值:5,參考值:3,5,10;
* MeasureSigma:輸入用於平滑的高斯函式的sigma;預設值:1,參考值:0.4,0.6,0.8,1.0,1.5,2.0,3.0,4.0,5.0,7.0,10.0;
* MeasureThreshold:輸入測量閾值;預設值:30,參考值:5.0, 10.0, 20.0, 30.0, 40.0, 50.0, 60.0, 70.0, 90.0, 110.0;
* GenParamName:輸入引數名稱;參考: ‘distance_threshold’, ‘end_phi’, ‘instances_outside_measure_regions’, ‘max_num_iterations’, ‘measure_distance’, ‘measure_interpolation’, ‘measure_select’, ‘measure_transition’, ‘min_score’, ‘num_instances’, ‘num_measures’, ‘point_order’, ‘rand_seed’, ‘start_phi’;
* GenParamValue:輸入引數值;參考:1, 2, 3, 4, 5, 10, 20, ‘all’, ‘true’, ‘false’, ‘first’, ‘last’, ‘positive’, ‘negative’, ‘uniform’, ‘nearest_neighbor’, ‘bilinear’, ‘bicubic’;
* Index:輸出建立測量物件的索引值;
add_metrology_object_line_measure (MetrologyHandle, Row1, Column1, Row2, Column2, 20, 5, 1, 30, [], [], Index)
————————————————
版權宣告:本文為博主原創文章,遵循 CC 4.0 BY-SA 版權協議,轉載請附上原文出處連結和本宣告。
原文連結:https://blog.csdn.net/cjh16606260986/article/details/136291046