此例子是通过把旋转后的充电头矫正，测量矩形位置不变的情况下；
可以与前两篇的测量芯片引脚的例子作为对比
* Image Acquisition 01: Code generated by Image Acquisition 01
open_framegrabber ('DirectShow', 1, 1, 0, 0, 0, 0, 'default', 8, 'gray', -1, 'false', 'default', '[0] Web Camera', 0, -1, AcqHandle)
grab_image_start (AcqHandle, -1)
while (true)
grab_image_async (Image, AcqHandle, -1)
*定位
*二值化
threshold (Image, Regions, 115, 253)
*形成不同的连通域
connection (Regions, ConnectedRegions)
*利用面积特征选择区域
select_shape (ConnectedRegions, SelectedRegions, 'area', 'and', 45321.1, 200000)
*获取区域的行列坐标
area_center (SelectedRegions, Area, Row, Column)
*获得区域的角度
orientation_region (SelectedRegions, Phi)
*仿射变换
vector_angle_to_rigid (Row, Column, Phi, Row, Column, rad(90), HomMat2D)
affine_trans_image (Image, ImageAffineTrans, HomMat2D, 'constant', 'false')
affine_trans_region (SelectedRegions, RegionAffineTrans, HomMat2D, 'nearest_neighbor')
*抠图
reduce_domain (ImageAffineTrans, RegionAffineTrans, ImageReduced)
* Measure 01: Code generated by Measure 01
* Measure 01: Prepare measurement
AmplitudeThreshold := 12
RoiWidthLen2 := 21
set_system ('int_zooming', 'true')
* Measure 01: Coordinates for line Measure 01 [0]
LineRowStart_Measure_01_0 := 244.681
LineColumnStart_Measure_01_0 := 874.067
LineRowEnd_Measure_01_0 := 241.673
LineColumnEnd_Measure_01_0 := 1323.72
* Measure 01: Convert coordinates to rectangle2 type
TmpCtrl_Row := 0.5*(LineRowStart_Measure_01_0+LineRowEnd_Measure_01_0)
TmpCtrl_Column := 0.5*(LineColumnStart_Measure_01_0+LineColumnEnd_Measure_01_0)
TmpCtrl_Dr := LineRowStart_Measure_01_0-LineRowEnd_Measure_01_0
TmpCtrl_Dc := LineColumnEnd_Measure_01_0-LineColumnStart_Measure_01_0
TmpCtrl_Phi := atan2(TmpCtrl_Dr, TmpCtrl_Dc)
TmpCtrl_Len1 := 0.5*sqrt(TmpCtrl_Dr*TmpCtrl_Dr + TmpCtrl_Dc*TmpCtrl_Dc)
TmpCtrl_Len2 := RoiWidthLen2
* Measure 01: Create measure for line Measure 01 [0]
* Measure 01: Attention: This assumes all images have the same size!
gen_measure_rectangle2 (TmpCtrl_Row, TmpCtrl_Column, TmpCtrl_Phi, TmpCtrl_Len1, TmpCtrl_Len2, 1920, 1080, 'nearest_neighbor', MsrHandle_Measure_01_0)
*设置绘制的方式
dev_set_draw ('margin')
gen_measure_rectangle2 (TmpCtrl_Row, TmpCtrl_Column, TmpCtrl_Phi, TmpCtrl_Len1, TmpCtrl_Len2, 1920, 1080, 'nearest_neighbor', MsrHandle_Measure_02_0)
*获得测量矩形
gen_rectangle2 (Rectangle, TmpCtrl_Row, TmpCtrl_Column, TmpCtrl_Phi, TmpCtrl_Len1, TmpCtrl_Len2)
* Measure 01: Execute measurements
measure_pos (Image, MsrHandle_Measure_01_0, 1, AmplitudeThreshold, 'all', 'all', Row_Measure_01_0, Column_Measure_01_0, Amplitude_Measure_01_0, Distance_Measure_01_0)
* Measure 01: Do something with the results
* Measure 01: Clear measure when done
close_measure (MsrHandle_Measure_01_0)
endwhile
close_framegrabber (AcqHandle)
打开相机进行操作：
* Image Acquisition 01: Code generated by Image Acquisition 01
open_framegrabber ('DirectShow', 1, 1, 0, 0, 0, 0, 'default', 8, 'gray', -1, 'false', 'default', '[0] Web Camera', 0, -1, AcqHandle)
grab_image_start (AcqHandle, -1)
while (true)
grab_image_async (Image, AcqHandle, -1)
endwhile
close_framegrabber (AcqHandle)
*二值化
threshold (Image, Regions, 115, 253)
*形成不同的连通域
connection (Regions, ConnectedRegions)
*利用面积特征选择区域
select_shape (ConnectedRegions, SelectedRegions, 'area', 'and', 45321.1, 200000)
*获取区域的行列坐标
area_center (SelectedRegions, Area, Row, Column)
*获得区域的角度
orientation_region (SelectedRegions, Phi)
*仿射变换
vector_angle_to_rigid (Row, Column, Phi, Row, Column, rad(90), HomMat2D)
affine_trans_image (Image, ImageAffineTrans, HomMat2D, 'constant', 'false')
affine_trans_region (SelectedRegions, RegionAffineTrans, HomMat2D, 'nearest_neighbor')
*抠图
reduce_domain (ImageAffineTrans, RegionAffineTrans, ImageReduced)
打开测量助手插入代码：
* Measure 01: Code generated by Measure 01
* Measure 01: Prepare measurement
AmplitudeThreshold := 12
RoiWidthLen2 := 21
set_system ('int_zooming', 'true')
* Measure 01: Coordinates for line Measure 01 [0]
LineRowStart_Measure_01_0 := 244.681
LineColumnStart_Measure_01_0 := 874.067
LineRowEnd_Measure_01_0 := 241.673
LineColumnEnd_Measure_01_0 := 1323.72
* Measure 01: Convert coordinates to rectangle2 type
TmpCtrl_Row := 0.5*(LineRowStart_Measure_01_0+LineRowEnd_Measure_01_0)
TmpCtrl_Column := 0.5*(LineColumnStart_Measure_01_0+LineColumnEnd_Measure_01_0)
TmpCtrl_Dr := LineRowStart_Measure_01_0-LineRowEnd_Measure_01_0
TmpCtrl_Dc := LineColumnEnd_Measure_01_0-LineColumnStart_Measure_01_0
TmpCtrl_Phi := atan2(TmpCtrl_Dr, TmpCtrl_Dc)
TmpCtrl_Len1 := 0.5*sqrt(TmpCtrl_Dr*TmpCtrl_Dr + TmpCtrl_Dc*TmpCtrl_Dc)
TmpCtrl_Len2 := RoiWidthLen2
* Measure 01: Create measure for line Measure 01 [0]
* Measure 01: Attention: This assumes all images have the same size!
gen_measure_rectangle2 (TmpCtrl_Row, TmpCtrl_Column, TmpCtrl_Phi, TmpCtrl_Len1, TmpCtrl_Len2, 1920, 1080, 'nearest_neighbor', MsrHandle_Measure_01_0)
* Measure 01: Execute measurements
measure_pos (Image, MsrHandle_Measure_01_0, 1, AmplitudeThreshold, 'all', 'all', Row_Measure_01_0, Column_Measure_01_0, Amplitude_Measure_01_0, Distance_Measure_01_0)
* Measure 01: Do something with the results
* Measure 01: Clear measure when done
close_measure (MsrHandle_Measure_01_0)
添加显示测量矩形的代码：
gen_measure_rectangle2 (TmpCtrl_Row, TmpCtrl_Column, TmpCtrl_Phi, TmpCtrl_Len1, TmpCtrl_Len2, 1920, 1080, 'nearest_neighbor', MsrHandle_Measure_01_0)
*设置绘制的方式
dev_set_draw ('margin')
gen_measure_rectangle2 (TmpCtrl_Row, TmpCtrl_Column, TmpCtrl_Phi, TmpCtrl_Len1, TmpCtrl_Len2, 1920, 1080, 'nearest_neighbor', MsrHandle_Measure_02_0)
*获得测量矩形
gen_rectangle2 (Rectangle, TmpCtrl_Row, TmpCtrl_Column, TmpCtrl_Phi, TmpCtrl_Len1, TmpCtrl_Len2)
充电头绕着中心点旋转多少度，都能够自动矫正，并画出测量矩形
