群上有位朋友說需要列舉RGB圖像中三個通道的每個灰階值的像素個數，在這裡貼一下代碼。
圖檔：pc01.bmp
dev_clear_window()
read_image (Image021,'L:/Halcon test/fruit/pc01.bmp')
get_image_size (Image021, Width, Height)
dev_open_window_fit_image (Image021, 0, 0, Width, Height, WindowHandle)
gen_rectangle2 (ROI_0, 515.6, 935.599, rad(-90), 15.6, 4.8)
decompose3(Image021, Image021R, Image021G, Image021B)
rgb1_to_gray(Image021,Image021gray)
dev_display(Image021R)
stop()
gen_rectangle1 (ROI_0, 170.5, 51.5, 426.5, 661.5)
reduce_domain(Image021R,ROI_0,ImageReduced)
threshold (ImageReduced, Regions, 11, 152)
gray_histo(Regions, Image021R, AbsoluteHisto, RelativeHisto)
intensity(Regions, Image021R, Mean1C021R, Deviation1C021R)
disp_message (WindowHandle, '平均R通道值為' + Mean1C021R + '，偏差' + Deviation1C021R, 'windows', 70, 70, 'red', 'true')
disp_continue_message (WindowHandle, 'black', 'true')
stop()
區域的像素灰階值平均值
圖檔：1.jpg
AbsoluteHisto變量的部分像素數量。