close_bg_esti — 删除背景估计数据集。
close_bg_esti( : : BgEstiHandle : )
close_bg_esti 删除背景估计数据集并释放所有已用内存。
此算子修改后续输入参数的状态:
在执行此算子时,若该参数值需在多个线程间使用,则必须对其访问进行同步。
BgEstiHandle (输入控制,状态被修改) bg_estimation → (handle)
BgEsti 数据集的 ID。
* Read image for initialization:
read_image (InitImage, 'xing/init')
* Initialize BgEsti dataset with
* fixed gains and threshold adaption:
create_bg_esti(InitImage,0.7,0.7,'fixed',0.002,0.02, \
'on',7.0,10,3.25,15.0,BgEstiHandle)
* Read the next image in sequence:
read_image(Image0, 'xing/xing001')
* Estimate the background:
run_bg_esti(Image0,ForegroundRegion1,BgEstiHandle)
* Display the foreground region:
dev_display (ForegroundRegion1)
* Read the next image in sequence:
read_image(Image1, 'xing/xing002')
* Estimate the background:
run_bg_esti(Image1,ForegroundRegion2,BgEstiHandle)
* Display the foreground region:
dev_display (ForegroundRegion2)
* etc.
* - End of background estimation -
* Close the dataset:
close_bg_esti(BgEstiHandle)
close_bg_esti 在所有参数正确时返回 2 (H_MSG_TRUE)。
基础