Halcon学习之八：图像区域叠加与绘制

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overpaint_gray ( ImageDestination, ImageSource : : : ) 将灰度值不相同区域用不同颜色绘制到ImageDestination中， ImageSource包含希望的灰度值图像

overpaint_region ( Image, Region : : Grayval, Type : ) 将Region以一个恒定的灰度值绘制到Image图像中

paint_gray ( ImageSource, ImageDestination : MixedImage : : ) 将ImageSource的图像绘制到ImageDestination中，形成MixedImage。

paint_region ( Region, Image : ImageResult : Grayval, Type : ) 将Region以一个恒定的灰度值绘制到Image图像中

paint_xld ( XLD, Image : ImageResult : Grayval : ) 将XLD以一个恒定的灰度值绘制到Image图像中

set_grayval ( Image : : Row, Column, Grayval : ) 设置Image图像中坐标为（Row，Column）的灰度值

程序：

[c-sharp] view plain copy

read_image (Image, 'G:/Halcon/images/images/claudia.png')

gen_circle (Circle, 200, 200, 100.5)

reduce_domain (Image, Circle, ImageReduced)

gen_image_proto (Image, ImageCleared, 32)

overpaint_gray (ImageCleared, ImageReduced)

gen_image_const (Image1, 'byte', 512, 512)

overpaint_region (Image1, Circle, 255, 'fill')

* /* Copy a circular part of the image into the image : */

read_image (Image2, 'G:/Halcon/images/images/brycecanyon1.png')

paint_gray (ImageReduced, Image2, MixedImage)

* /* Paint a rectangle into the image */

read_image (Image3, 'G:/Halcon/images/images/pads.png')

gen_rectangle1 (Rectangle1, 30, 20, 100, 200)

paint_region (Rectangle1, Image3, ImageResult, 255, 'fill')

* /* Paint colored xld objects into a gray image */

* /* read and copy image to generate a three channel image */

copy_image (Image2, image0)

copy_image (Image2, image1)

compose3 (image0, Image2, image1, MultiChannelImage)

* /* extract subpixel border */

threshold_sub_pix (MultiChannelImage, Border, 128)

* /* select the circle and the arrows */

circle := Border[14]

arrow := Border[16]

ObjectsConcat := [circle,arrow]

* /* paint a green circle and white arrows (to paint all

* * objects e.g. blue, pass [0,0,255] tuple for GrayVal) */

paint_xld (ObjectsConcat, MultiChannelImage, ImageResult1, [0,1,0,1,1,255])

处理效果：