[MINC-users] register and [0-1] float volumes

[Robert D. Vincent]

Ok, I had hastily made a fix for Register to match what I had done for
Display, but hadn't properly handled the merged volume. It should be fixed
by the latest commit to develop.

There will remain some situations in which the colour mapping isn't ideal
for float volumes, but the latest commit should at least do something
reasonable (and not crash).

    -bert

On Mon, Nov 23, 2015 at 3:17 PM, Vladimir S. FONOV <vladimir.fonov at gmail.com
> wrote:

> Hello,
>
>
> it looks like new patches are not quote ready for general use. I updated
> all the subprojects in minc-toolkit-v2 to the latest develop heads and
> rebuilt register. And I am getting following results:
>
>
> 1. running register on a float volume with range 0-8.57 - i have old
> behavior (i.e all the values between 0 and 1.0 are mapped to black)
>
> 2. running minccalc -express 'A[0]/10' test1.mnc test2.mnc (test2.mnc now
> have range 0 - 0.857) , followed by register test2.mnc - works properly .
>
> 3. running register test2.mnc test2.mnc results in segfault, register
> test1.mnc test1.mnc still works.
>
> 4. running minccalc -express 'A[0]*10' test2.mnc test3.mnc,
> register test3.mnc - works, but with old behavior
> register test3.mnc test3.mnc segfaults.
>
> You can download files to try it on your system:
>
> https://www.dropbox.com/sh/7vtg2tszawnlqyi/AAD8mN60UttvAdLxLYKtDcMha?dl=0
>
>
>
>
>
>
>
> On 15-11-23 02:18 PM, Robert D. Vincent wrote:
>
>> Hi Simon,
>>
>> I plan to merge many of my changes into the master branch for bicpl,
>> bicgl,
>> Display, and Register soon. However, the minc-toolkit and minc-toolkit-v2
>> packages pick specific commits from the submodules, so they don't
>> automatically track what is in master for a given project. In fact,
>> minc-toolkit-v2 uses commits from late June or thereabouts, so it's
>> neither
>> develop nor master.
>>
>>      -bert
>>
>> On Mon, Nov 23, 2015 at 7:38 AM, Simon Eskildsen <eskild at gmail.com>
>> wrote:
>>
>> Hi Bert,
>>>
>>> Would it be possible to merge the fix into the master branch? At least it
>>> would be good if minc-toolkit-v2 included a version of Register that has
>>> the fix. I'm using the master branch of minc-toolkit-v2.
>>>
>>> Thanks,
>>> Simon
>>>
>>> On Mon, Oct 12, 2015 at 5:43 PM, Robert D. Vincent <
>>> robert.d.vincent at mcgill.ca> wrote:
>>>
>>> Hi Alex,
>>>>
>>>> There is a recent commit that should fix this issue. In a nutshell, I
>>>>
>>> made
>>>
>>>> the code recognize volumes that cannot use an integral colour table, and
>>>> use a full colour mapping instead.
>>>> On Oct 12, 2015 11:37 AM, "Alex Zijdenbos" <zijdenbos at gmail.com> wrote:
>>>>
>>>> Hi all,
>>>>>
>>>>> In the flurry of recent improvements to Display/register (thank you
>>>>>
>>>> Bert
>>>
>>>> et
>>>>
>>>>> al.!), I was wondering if the problem of register not being able to
>>>>>
>>>> display
>>>>
>>>>> float volumes with a range [0,1] has been addressed? AFAIC that is the
>>>>> single most annoying issue with register (I am keeping a register
>>>>>
>>>> 1.3.6.
>>>
>>>> build from 2009 around that still works for such volumes; or I use a
>>>>> wrapper that converts to byte/short on the fly).
>>>>>
>>>>> Thanks,
>>>>>
>>>>> -- Alex
>>>>> _______________________________________________
>>>>> MINC-users at bic.mni.mcgill.ca
>>>>> http://www.bic.mni.mcgill.ca/mailman/listinfo/minc-users
>>>>>
>>>>> _______________________________________________
>>>> MINC-users at bic.mni.mcgill.ca
>>>> http://www.bic.mni.mcgill.ca/mailman/listinfo/minc-users
>>>>
>>>> _______________________________________________
>>> MINC-users at bic.mni.mcgill.ca
>>> http://www.bic.mni.mcgill.ca/mailman/listinfo/minc-users
>>>
>>> _______________________________________________
>> MINC-users at bic.mni.mcgill.ca
>> http://www.bic.mni.mcgill.ca/mailman/listinfo/minc-users
>>
>>
>
> --
> Best regards,
>
>  Vladimir S. FONOV ~ vladimir.fonov <at> gmail.com
> _______________________________________________
> MINC-users at bic.mni.mcgill.ca
> http://www.bic.mni.mcgill.ca/mailman/listinfo/minc-users
>