Posted by
Nino Pereira on
Nov 26, 2007; 10:32pm
URL: http://imagej.273.s1.nabble.com/Dual-Windows-image-and-text-for-the-same-image-file-tp3697868p3697874.html
As a new user of ImageJ I haven't had time to find out
for myself whether you can edit images within ImageJ, but a
recent question brought up the topic: it makes me think you can't.
Hence my question: can you crop inside ImageJ? and if so, how?
Specifically, my (Epson) scanner produces a 16-bit RGB image
of a whole (8.5 x 11 inch, or basically A4) page. The result is
what I think of as an enormous (13 Mb) file that's difficult
to email around. I need only a 10 by 100 mm fraction that should
be much smaller.
On my linux system I can crop the image with the Gimp, but only
after converting to 8-bit RGB, which I don't want to do.
I can get what I need (the value over the central part of
my image, integrated over the small direction, in the red
image only) by hand, selecting a region, integrating and then
exporting the numbers, but this still leaves me with a large
file to store. I understand I can split the image into its R,
G, and B components (although I haven't tried that yet),
but I haven't seen any pointer to whether an image can be cropped.
Any pointers?
Thank you,
Nino R. Pereira
Michael Schmid wrote:
> Hi Yang,
>
> since this was on my wishlist anyhow, I have created a plugin
> that displays the pixel values around the cursor position:
>
>
http://imagejdocu.tudor.lu/imagej-documentation-wiki/plugins/pixel_inspector
>
>
> Michael
> ________________________________________________________________
>
>
> On 26 Nov 2007, at 15:31, Yang Xia wrote:
>
>> I have been using Spyglass' Transform for a long time for image
>> editing. A
>> particularly nice feature of Transform is its ability to show the numbers
>> behind the image. When I want to open an image, it will open initially
>> a 2D
>> data window with rows/columns of numbers. I can generate an image
>> based on
>> the data window. If I click at one pixel on the image, the number at this
>> pixel is highlighted in the data window. If I select a region in the
>> image,
>> the numbers of this region are also highlighted in the data window.
>> One can
>> do lots of things with the numbers in the data window (such as math
>> operations of multiple windows).
>>
>> I am wondering if this feature is possible in ImageJ? I am sure ImageJ
>> has
>> the data window in the background. Bring it to the front will offer the
>> opportunity of examining the details behind each pixel.
>>
>> Transform is ancient software and runs only on Mac OS 9. Its company has
>> been sold - the new owner has no plan to update it.
>>
>> I greatly appreciate if someone knows how to implement this feature in
>> ImageJ or some other software that has this feature.
>>
>> Thanks in advance.
>>
>> Yang
>>
>>
[hidden email]
>
>