response vector of the first Line in 'contours' list potential issues

[lucalusn]

In 'compute_contours' of Link.java the 'Line' objs are stored in the 'cont' list.
In the first element of this list the 'response' value seems not be filled in the correct way.
The vector has 387 values but just the first 4 are not zero. In the other elements there are no 0 values.
These values are used to fill the 'intensity' vector ... I think that its values could be invalid

All the issues that I opened are obtained with the following file

The params used are:

{
"path_to_file": "example.tif",
"mandatory_parameters": {
"Sigma": 3.39,
"Lower_Threshold": 0.34,
"Upper_Threshold": 1.02,
"Maximum_Line_Length": 0,
"Minimum_Line_Length": 0,
"Darkline": "LIGHT",
"Overlap_resolution": "NONE"
},

"optional_parameters": {
	"Line_width": 10.0,
    "High_contrast": 200,
    "Low_contrast": 80
},

"further_options": {
	"Correct_position": true,
	"Estimate_width": true,
    "doExtendLine": true,
	"Show_junction_points": true,
    "Show_IDs": false,
	"Verbose_mode": false,
	"Display_results": true,
	"Add_to_Manager": true,
    "Preview": true,
    "Make_Binary": false
}

}