Image acquisition

                                                            halcon打开USB摄像头

 

本人用的大街上卖的那种傻瓜式USB摄像头

 

基本步骤

 

 

 

dev_update_window('off')

set_system ('do_low_error', 'true')

close_all_framegrabbers()

AcqName :='DirectShow'

open_framegrabber (AcqName, 1, 1, 0, 0, 0, 0, 'default', -1, 'rgb',\
                   -1, 'false', 'default', 'default', -1, -1, AcqHandle)

grab_image(Image,AcqHandle)

get_image_size(Image,Width,Height)

dev_close_window()

dev_open_window(0,0,Width,Height,'black',WindowHandle)

Button :=0

*Button 不等于1
while(Button # 1)   
    grab_image(Image,AcqHandle)
    dev_display(Image)
    wait_seconds(0.03)
    *按鼠标左键 button 等于 1
    dev_set_window (WindowHandle)
    *If Mode is set to '~give_error', the error will be 
    *ignored and the program continues with the next operator
    dev_set_check ('~give_error')
    get_mposition(WindowHandle,Row,Column,Button)
    dev_set_check ('give_error')
endwhile

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