Chain code measurement function
#include "dip_chaincode.h"
dip_Error dip_ChainCodeGetFeret ( chaincode, stepSize, feret )
This function measures the longest and shortest projections of the object encoded by chaincode. The chain code is rotated in stepSize degree intervals and the length of the projection on the x and y axes is computed for each orientation. The sizes of maximum and minimum projections, as well as the rotation at which they were obtained, are returned in the feret structure, which contains the following elements:
| Data type | Name | Description |
| dip_float | maxDiameter | The widest projection of the object |
| dip_float | minDiameter | The narrowest projection of the object |
| dip_float | maxPerpendicular | The width of the projection perpendicular to minDiameter |
| dip_float | maxAngle | The angle of the projection for maxDiameter |
| dip_float | minAngle | The angle of the projection for minDiameter |
ChainCodeGetFeret is the function formerly used by Measure for the FeatureFeret measurement. This measurement now uses ConvexHullGetFeret instead.
| Data type | Name | Description |
| dip_ChainCode | chaincode | Input chain code |
| dip_float | stepSize | The step size, in degrees |
| dip_Feret * | feret | Output measurement |
The original code on which the current implementation is based, was donated by Gerie van der Heijden.
ImageChainCode, ChainCodeNew, ChainCodeFree, ChainCodeGetLength, ChainCodeGetLongestRun, ChainCodeGetRadius