3D color inspector for teaching

[Centre de Quantimétrie]

Dear all,

Does somebody have a documentation for 3D Color Inspector (in english) ?

Thanks in advance

Anne Béghin

[Wayne Rasband]

> Dear all,
>
> Does somebody have a documentation for 3D Color Inspector (in  
> english) ?
>
> Thanks in advance

There is documentation in English and German at

     http://www.f4.fhtw-berlin.de/~barthel/ImageJ/ColorInspector//help.htm

-wayne

[Centre de Quantimétrie]

Dear Wayne Rasband,

Thank you for this documentation. It has and would be(en) useful.

Another question about the "unsharp mask filter" now. The source code
indicates that the mathematic operation is :
pixels[p] = (snapshotPixels[p] - weight*pixels[p])/(1f - weight);


Why 1f ? is it in hexadecimal ?

For me, the operation of an unsharp mask filter is : pixels[p] =
(snapshotPixels[p] - weight*pixels[p])/(1 - weight) but maybe i am wrong or
i have missed something.

I am trying to do the unsharp mask"manually"  (for explanation during
teaching and courses) but i do not manage to get the same result as the
filter.

Could you help me ?

Always thanks in advance

Anne Béghin,
Centre Commun de Quantimétrie, Faculté de médecine Rockefeller
Université de Lyon
8 avenue Rockefeller
LYON 69008 (France)

2009/9/26 Wayne Rasband <[hidden email]>

> Dear all,
>>
>> Does somebody have a documentation for 3D Color Inspector (in english) ?
>>
>> Thanks in advance
>>
>
> There is documentation in English and German at
>
>    http://www.f4.fhtw-berlin.de/~barthel/ImageJ/ColorInspector//help.htm<http://www.f4.fhtw-berlin.de/%7Ebarthel/ImageJ/ColorInspector//help.htm>
>
> -wayne
>

[Gabriel Landini]

On Sunday 11 October 2009, Centre de Quantimétrie wrote:
> Another question about the "unsharp mask filter" now. The source code
> indicates that the mathematic operation is :
> pixels[p] = (snapshotPixels[p] - weight*pixels[p])/(1f - weight);
>
>
> Why 1f ? is it in hexadecimal ?

No, 1f means 1 in "float" form.

G