[Insight-users] Question about the BinaryDilated and Binary image in general.

[Ariel Hernán Curiale]

Thank you for your explanation. I'm using unsigned char.

Thanks,
__________________________________
| Ariel Hernán Curiale Ph.D Student
| ETSI Telecomunicación
| Universidad de Valladolid
| Campus Miguel Delibes
| 47011 Valladolid, Spain
| Phone: 983-423000 ext. 5590
| Web: www.curiale.com.ar
|_________________________________

El 02/10/2012, a las 21:36, Saurabh Garg escribió:

> What PixelType are you using? Your PixelType must be char (1 byte). '0 as bg and 1 as fg' will work (without specifying the DilateValue) only if your PixelType is 1 bit long.
> 
> Saurabh
> 
> On Tue, Oct 2, 2012 at 12:23 PM, Ariel Hernán Curiale <curiale at gmail.com> wrote:
> Ok, then I don't know why I need to Rescale the intensity to 255 to get a properly output. When I use the default value (o background and 1 foreground) the dilate doesn't work.
> 
>  
> Thanks,
> __________________________________
> | Ariel Hernán Curiale Ph.D Student
> | ETSI Telecomunicación
> | Universidad de Valladolid
> | Campus Miguel Delibes
> | 47011 Valladolid, Spain
> | Phone: 983-423000 ext. 5590
> | Web: www.curiale.com.ar
> |_________________________________
> 
> El 02/10/2012, a las 20:22, Saurabh Garg escribió:
> 
>> Hi Ariel,
>> 
>> It is an option in case your foreground value is different than default. DilateValue defaults to the maximum possible value of the PixelType.
>> 
>> HTH,
>> Saurabh
>> 
>> On Tue, Oct 2, 2012 at 11:12 AM, Ariel Hernán Curiale <curiale at gmail.com> wrote:
>> Hi Saurabh,
>> 
>> I can use SetDilateValue or I must use it ? 
>> Because I saw this information but I assume that by default all pixel >0 are treated like one. And in the wiki (http://www.itk.org/Wiki/ITK/Examples/Morphology/BinaryDilateImageFilter) they don't use SetDilateValue because the image is binary.
>> 
>> 
>> Thanks,
>> __________________________________
>> | Ariel Hernán Curiale Ph.D Student
>> | ETSI Telecomunicación
>> | Universidad de Valladolid
>> | Campus Miguel Delibes
>> | 47011 Valladolid, Spain
>> | Phone: 983-423000 ext. 5590
>> | Web: www.curiale.com.ar
>> |_________________________________
>> 
>> El 02/10/2012, a las 20:02, Saurabh Garg escribió:
>> 
>>> Hi Ariel,
>>> 
>>> You can use "SetDilateValue" to tell the Binary dilate filter, the value of your foreground pixel.
>>> 
>>> HTH,
>>> Saurabh
>>> 
>>> On Tue, Oct 2, 2012 at 9:53 AM, Ariel Hernán Curiale <curiale at gmail.com> wrote:
>>> Hi,
>>> 
>>> I'm trying to implement a BinaryDilate over a mask image (0 and 1) and after read the class api I was sure that I will could do it :) but after a while the the dilate filter always return the same image as input.  
>>> Reading the itkSoftwareGuide I found to my surprise that the input of the dilated image (in the example of the page 174) was  0 for the background and 255 for non-background. I did this change using a RescaleIntensityImage and the dilate filter work properly.
>>> 
>>> Anyone knows What is exactly the values of intensity that I need to use when in ITK  say binary image ? 
>>> In the api say that "The structuring element is assumed to be composed of binary values (zero or one)", Why didn't  work the dilate using a binary image ?
>>> 
>>> 
>>> Thanks,
>>> __________________________________
>>> | Ariel Hernán Curiale Ph.D Student
>>> | ETSI Telecomunicación
>>> | Universidad de Valladolid
>>> | Campus Miguel Delibes
>>> | 47011 Valladolid, Spain
>>> | Phone: 983-423000 ext. 5590
>>> | Web: www.curiale.com.ar
>>> |_________________________________
>>> 
>>> 
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>> 
>> 
> 
> 

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