Coordinate transformation or image warp

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Coordinate transformation or image warp

Moritz von Buttlar
 Hi,

I have the following problem. I'm using a scanning acoustic microscope for
imaging cells. A sine function is used for scanning the x axis.
Now I would like to do a transformation so that the distance between the
points is the same throughout the whole image. Is there a plugin or some
other way to do that in imagej ?

 Thanks in advance for your help,

   Moritz
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Re: Coordinate transformation or image warp

Justin McGrath
Matlab has some builtin things for transformations which I've used for
other stuff.

At this link, http://www.mathworks.com/products/demos/image/create_gallery/tform.html
, it even describes a sinusoidal transform (image 7), which you could
probably modify to get what you want.

If you wanted to do it in ImageJ you would remap points on your image
then interpolate the gaps.  There is probably something to interpolate
but I don't recall seeing anything.  I doubt there is something
already made to remap points.

Justin

On 1/30/07, Moritz von Buttlar <[hidden email]> wrote:

>  Hi,
>
> I have the following problem. I'm using a scanning acoustic microscope for
> imaging cells. A sine function is used for scanning the x axis.
> Now I would like to do a transformation so that the distance between the
> points is the same throughout the whole image. Is there a plugin or some
> other way to do that in imagej ?
>
>  Thanks in advance for your help,
>
>    Moritz
>