Zoom functionality

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Zoom functionality

Jon Harman
Hi,

If I use ImageJ to look at large images zooming functionality is
important.  If I zoom to 100% in a larger image I can easily become lost
in the image.

Is there a way to show me just where my zoom area is within the larger
image?

Jon
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Re: Zoom functionality

Jerome Mutterer
You could use the magnifying glass tool by Gilles Carpentier, available from :
http://rsb.info.nih.gov/ij/macros/tools/MagnifyingGlassTool.txt

Zoom out your original image until it fits in your screen, then use  
the tool on it. It will display the selected area at 100% mag in a new  
window.

Jerome.

Quoting Jon Harman <[hidden email]>:

> Hi,
>
> If I use ImageJ to look at large images zooming functionality is
> important.  If I zoom to 100% in a larger image I can easily become lost
> in the image.
>
> Is there a way to show me just where my zoom area is within the larger
> image?
>
> Jon
>
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Re: Zoom functionality

pcloetens
I just tried this tool. Is there a reason why the magnified image is  
not of the same type as the original one. Now it seems to be always  
RGB and the tool does not work with 16 bits images. One gets messages  
like 'Images must be the same type to paste'
Peter

On Jul 12, 2006, at 10:35 PM, Jerome Mutterer wrote:

> You could use the magnifying glass tool by Gilles Carpentier,  
> available from :
> http://rsb.info.nih.gov/ij/macros/tools/MagnifyingGlassTool.txt
>
> Zoom out your original image until it fits in your screen, then use  
> the tool on it. It will display the selected area at 100% mag in a  
> new window.
>
> Jerome.
>
> Quoting Jon Harman <[hidden email]>:
>
>> Hi,
>>
>> If I use ImageJ to look at large images zooming functionality is
>> important.  If I zoom to 100% in a larger image I can easily  
>> become lost
>> in the image.
>>
>> Is there a way to show me just where my zoom area is within the  
>> larger
>> image?
>>
>> Jon
>>
>

Peter Cloetens
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