IM hole

函数im.AnalyzeMeasureHoles

(image: imImage, connect: number, [region_count: number])
-> counter: boolean, holes_count: number, holes_area: table of numbers, holes_perim: table of numbers 

connect：Regions can be 4 connected or 8 connected

自Function Documentation下的第一个函数（imAnalyzeFindRegions）的参数（connect）的说明。

region_count：The number of regions found

自..同上。

im.AnalyzeFindRegionsNew-im.AnalyzeMeasureHoles

本栏（Image Analysis）下都/多是基于im.AnalyzeFindRegions。

area使用：

[const] int* area [in C], area: table of numbers [in Lua]
aera是数组。

area是子区域(Region)是区域的集合。
int region_count: number

• polygonal area
• area of Regions.
• 无areas
• holes in regions/area are not included

Regions使用：

• Find white regions in binary image.
• Regions can be 4 connected or 8 connected.
• The number of regions found.
• Measure the actual area of all regions.
• Measure the number of holes of all regions.
• the perimeter line of all regions
• number of pixels of each region
  (region->pixel)s