Re: setting WindowWidth and WindowCenter values

Posted by Wayne Rasband on Oct 11, 2008; 2:23pm
URL: http://imagej.273.s1.nabble.com/setting-WindowWidth-and-WindowCenter-values-tp3694797p3694798.html

Use

     setMinAndMax(level-window/2, level+window/2);

to set the window (window width) and level (window center) of an image.

-wayne

On Oct 11, 2008, at 7:54 AM, prashant wrote:

> Hi everyOne,
>
>          I want to change the window width and window center of the  
> image.
>          I am opening my dicom images through ij.jar.
>          Actually i want to change window Level values through  
> mouseDragged event.
>          Then which method i have to call.
>
>          I am currently using ip.setMinAndMax() method.
>          But i am not getting it sets which min and min.
>
> If our image is Signed then
>
>                                     min           max
> Window Width range = 1     to     2^(High Bit value)
> Window Center range = 1    to     2^(High Bit value)
>
> If our image is UnSigned then
>
>                                        min           max
> Window Width range =   1     to     2^(High Bit value)
> Window Center range =  - 2^(High Bit value)/2    to     +2^(High  
> Bit value)/2
>
> So if i using ip.setMinAndMax(min,max) then is it WindowWidth or  
> WindowCenter min and Max?
> Please clarify if i wrong about their range.
>
> So please help me how i set Window Width and Window Center values  
> of image.
> It is same as you are setting slider min and max in W&L window.
>
>
>
>
>
>
>
>
>
> With Warm Regards
> --------------------------------------------------------------------
>
> Prashant Chandrakar
> Software Developer
> MedSynaptic Pvt Ltd
> 9270710943
> [hidden email]
>
> "If the facts don't fit the theory, change the facts."