Re: Opening image with big file size

Posted by donny008 on Aug 20, 2010; 5:59pm
URL: http://imagej.273.s1.nabble.com/Opening-image-with-big-file-size-tp3687203p3687212.html

thank you wayne

now that does work. changing the pixel size to 1024x1024, now the size is 1
mb

Thnks

donny


On Fri, Aug 20, 2010 at 7:54 PM, Rasband, Wayne (NIH/NIMH) [E] <
[hidden email]> wrote:

> Donny,
>
> You need to reduce the number of pixels in the image. For example, a
> 2048x2048 pixel RGB image requires 16MB of memory when opened in ImageJ (4
> bytes per pixel) but it only requires 4MB after is reduced to 1024x1024
> pixels.
>
> -wayne
>
>
> On Aug 20, 2010, at 1:30 PM, Donny George wrote:
>
> > Hello
> >
> > I have rather weird situation. I have certain images which have size of
> > around 13 MB. Since working on these images is time consuming I reduced
> the
> > file size to around 1 MB. But once I try to open this new image, its open
> > the old image and the display information shows 13 MB again. I had
> assumed
> > that this was probably associated with the method i used to reduce the
> file
> > size (i used photoshop). So now i tried many other softwares to do the
> same
> > task of reducing file size. And tried opening them but it all somehow
> > displays the old 13 MB image. I also tried updating the ImageJ version. I
> > cant really figure out why this is so. someone has any idea why this
> happens
> > ?
> >
> >
> > Regards
> > Donny
> >
> >
> >
> >
> > --
> > Donny George
>
>

--
Donny George