dev_get_window (WindowHandle)
*set_color (, 'white')中有颜色透明分量在hcanvas.dll里面
read_image (test, 'printer_chip/printer_chip_01')
rgb1_to_gray (test, test)
invert_image (test, test)
gen_rectangle1 (ROI_0, 49.6555, 72.8333,879, 1269)
r:=test
b:=r
g:=r
apha:=0.5
reduce_domain (test, ROI_0, ImageReduced)
display_region_mod (ImageReduced, apha)
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