halcon（改变图像灰度值）

dev_clear_window ()
dev_close_window ()

read_image (Image, 'printer_chip/printer_chip_01')
get_image_size (Image, Width, Height)
dev_open_window (0, 0, Width, Height, 'black', WindowHandle)


*改变图像的灰度值（改变尺寸可变）
for i := 1 to Height-1 by 1
    for j := 1 to Width-1 by 1
     set_grayval (Image, i, j, 250)   
    endfor
endfor