Halcon图像修复

1.之前研究OpenCV的图像修复时，知道Opencv提供的inpaint API能够实现这个效果。

void inpaint(

InputArray src, 原图

InputArray inpaintMask, 二进制掩模，指示要修复的像素

OutputArray dst, 目标图像

double inpaintRadius, 像素周围的邻域补绘。通常，如果要修复的区域很小，则使用较小的值仅产生较少模糊

int flags INPAINT_NS 或 INPAINT_TELEA

)
2.今天研读halcon算子时发现Halcon也有相对应的图像修复算子，而且效果还非常好。以下是算子和案例。
2.1 inpainting_aniso

功能：通过各向异性扩散执行图像修复。

2.2 inpainting_ced

功能：通过一致性增强扩散执行图像修复。

2.3 inpainting_ct

功能：通过连贯传送执行图像修复。

2.4 inpainting_mcf

功能：通过水平线平滑执行图像修复。

2.5 inpainting_texture

功能：通过结构传导执行图像修复。
3.摘取其中两个常用的算子讲解
3.1案例

• This example program shows how inpainting_ct can be used to remove the
• fence from an image of a lynx.
  read_image (Image, ‘lynx’)
  get_image_size (Image, Width, Height)
  dev_close_window ()
  dev_open_window (0, 0, Width, Height, ‘black’, WindowHandle)
  set_display_font (WindowHandle, 16, ‘mono’, ‘true’, ‘false’)
  dev_display (Image)
  Message := ‘Image to be inpainted’
  disp_message (WindowHandle, Message, ‘window’, 12, 12, ‘black’, ‘true’)
  stop ()
  read_region (Region, ‘lynx_mask’)
  dev_display (Image)
  dev_set_color (‘blue’)
  dev_display (Region)
  Message := ‘Inpainting region’
  disp_message (WindowHandle, Message, ‘window’, 12, 12, ‘black’, ‘true’)
  stop ()
  inpainting_ct (Image, Region, InpaintedImage, 13, 70, 1.2, 4, 1)
  dev_display (InpaintedImage)
  Message := ‘Inpainted image’
  disp_message (WindowHandle, Message, ‘window’, 12, 12, ‘black’, ‘true’)
  原图
  
  结果图
  
  3.2 案例2
• This example program shows how inpainting_texture can be used to remove
• unwanted objects from an image and replace them with natural looking
• texture
  dev_update_off ()
  read_image (Image, ‘plit2’)
  get_image_size (Image, Width, Height)
  dev_close_window ()
  dev_open_window (0, 0, Width, Height, ‘black’, WindowHandle)
  set_display_font (WindowHandle, 16, ‘mono’, ‘true’, ‘false’)
  decompose3 (Image, ImageR, ImageG, ImageB)
  trans_from_rgb (ImageR, ImageG, ImageB, ImageH, ImageS, ImageV, ‘hsv’)
  threshold (ImageV, Region, 0, 120)
  reduce_domain (ImageS, Region, ImageReduced)
  threshold (ImageReduced, Region, 0, 120)
  dilation_circle (Region, RegionDilation, 2.5)
  opening_circle (RegionDilation, RegionTrees, 6.5)
  dev_display (Image)
  Message := ‘Original image’
  disp_message (WindowHandle, Message, ‘window’, 12, 12, ‘black’, ‘true’)
  stop ()
  dev_display (Image)
  dev_set_color (‘white’)
  dev_set_draw (‘margin’)
  dev_set_line_width (3)
  dev_display (RegionTrees)
  Message := ‘Region to be inpainted’
  disp_message (WindowHandle, Message, ‘window’, 12, 12, ‘black’, ‘true’)
  stop ()
  inpainting_texture (Image, RegionTrees, InpaintedImage, 11, 40, 0, ‘none’, 0)
  dev_display (InpaintedImage)
  Message := ‘Result of the inpainting’
  disp_message (WindowHandle, Message, ‘window’, 12, 12, ‘black’, ‘true’)
  原图
  
  结果图