Bin command

[Knecht, David]

I was looking for a way to reduce the resolution of a 1024x1024 image to be able to compare it to data collected at 512x512.  I presumed that binning rather than scaling would be the appropriate way to do this.  However, I was surprised to find that "sum" was not an option in the binning submenu.  I would have thought the default way to bin an image would be the same way a camera does it, where the pixels are summed together and you get a "brighter" image after binning.  Why is that not an option in ImageJ or is there some other way to do it?  Thanks- Dave


Visiting Professor David Knecht
Beatson Institute for Cancer Research
University of Glasgow
Switchback Road, Bearsden
Glasgow Scotland G61 1BD
UK






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[Jacob Keller]

Couldn't you just average them and multiply the brightness by the number of
pixels averaged/binned?

JPK

On Thu, Jul 19, 2012 at 4:27 PM, David Knecht <[hidden email]>wrote:

> I was looking for a way to reduce the resolution of a 1024x1024 image to
> be able to compare it to data collected at 512x512.  I presumed that
> binning rather than scaling would be the appropriate way to do this.
>  However, I was surprised to find that "sum" was not an option in the
> binning submenu.  I would have thought the default way to bin an image
> would be the same way a camera does it, where the pixels are summed
> together and you get a "brighter" image after binning.  Why is that not an
> option in ImageJ or is there some other way to do it?  Thanks- Dave
>
>
> Visiting Professor David Knecht
> Beatson Institute for Cancer Research
> University of Glasgow
> Switchback Road, Bearsden
> Glasgow Scotland G61 1BD
> UK
>
>
>
>
>
>
> --
> ImageJ mailing list: http://imagej.nih.gov/ij/list.html
>

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*******************************************
Jacob Pearson Keller
Northwestern University
Medical Scientist Training Program
email: [hidden email]
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[Unruh, Jay-2]

I have a bin image plugin in my collection at http://research.stowers.org/imagejplugins/.

Jay

-----Original Message-----
From: ImageJ Interest Group [mailto:[hidden email]] On Behalf Of David Knecht
Sent: Thursday, July 19, 2012 4:28 PM
To: [hidden email]
Subject: Bin command

I was looking for a way to reduce the resolution of a 1024x1024 image to be able to compare it to data collected at 512x512.  I presumed that binning rather than scaling would be the appropriate way to do this.  However, I was surprised to find that "sum" was not an option in the binning submenu.  I would have thought the default way to bin an image would be the same way a camera does it, where the pixels are summed together and you get a "brighter" image after binning.  Why is that not an option in ImageJ or is there some other way to do it?  Thanks- Dave


Visiting Professor David Knecht
Beatson Institute for Cancer Research
University of Glasgow
Switchback Road, Bearsden
Glasgow Scotland G61 1BD
UK






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