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Re: math functions' point of view

Posted by Jarek Grodek on Feb 28, 2006; 10:21am
URL: http://imagej.273.s1.nabble.com/math-functions-point-of-view-tp3703556p3703558.html

Liu, Dongfang (NIH/NIAID) [E] napisaƂ(a):

> you mean, using this equation(y=2x^2+b) fit the real image?
>
>  
>> ----------
>> From: Jarek
>> Reply To: List IMAGEJ
>> Sent: Tuesday, February 14, 2006 8:32 AM
>> To: List IMAGEJ
>> Subject: math functions' point of view
>>
>> Hi,
>>
>> I'm newbie to ImageJ and wondering is there a possibility to make it to
>> create an artificial image according to specified mathematic function,
>> e.g. y=2x^2+b.
>> If there is a chance to do it, is it possible to re-construct real image
>> into artificial one? Or maybe there is known plug-in which can modify
>> real image in mentioned conditions?
>>
>> Thanks in advance
>>
>> Jarek Grodek
>>
>>    
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>
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>  
What i meant was: let's take the picture of an object i.e.  
non-destructive technique examined material with internal defect. Object
of examination is not flat, let' s say it is a double roll, so when we
exponent tis object to x-ray projection we receive an image of which
line plot will look like an absolut value of sinus function. so the
defect area (ROI) will be darker than the rest of the image. what i
meant is: how to reconstruct the grey value profile of this ROI to
undefected? and how to do it in xy orientation? the best example would
be if i present an image, afraid it will not be destributed through
LIST.NIH server. the formula y=2x..... was just an example, what i'm
interested in to construct the plugin. I'm not involved with JAVA
programing, and JAVA token is still maybe not "black" but "black shade
of magic" for me.
Wayne responded with Expression plugin info, i think it's propably what
i'm looking for, but still have problem with making it work for me.

greetings,

Jarek