select region of interest
saeed
Mon, 03/03/2014 - 08:31 am
I have one image and I want to select special part of this image as ROI but when I put for example Redimension/N=(400,300) wave0 , it selected another part.
My image has 600*400 and my aim is selection from (200-300)*(100-200) but it selected from zero of my graph not middle of that.
Any suggestion can be help me.
Thanks
It seems you need something like:
make/O/N=(100, 100) ROI; newimage roi
roi = test[p+200][q+100]
March 3, 2014 at 11:16 pm - Permalink
You can specify a subrange.
Larry Hutchinson
March 4, 2014 at 06:30 am - Permalink
But they are not working in my code. :(
I want only select the part of my image from my graph.
March 4, 2014 at 09:20 am - Permalink
To create a new image from a portion of wave0 you can use:
A.G.
WaveMetrics, Inc.
March 4, 2014 at 10:21 am - Permalink
I can select every coordinate but my problem is it selected from corner of my graph not every where which I like.
Is there any another suggestion to help me?
Thanks
March 5, 2014 at 11:48 am - Permalink
I suggest you look again at the arguments you pass to Duplicate/R. This operation allows you to copy any rectangular portion of the image.
If Duplicate/R does not work for you then you are simply not describing your problem with sufficient detail. I suggest that you send a simplified form of your experiment to support@wavemetrics.com and explain precisely what you want to accomplish.
A.G.
WaveMetrics, Inc.
March 6, 2014 at 12:25 pm - Permalink
It works but I like it is appeare in the same graph(instead of my main graph) but it is not.
I have to write another graph like:
Duplicate/R=[Atomparameters0[5],Atomparameters0[7]][Atomparameters0[6],Atomparameters0[8]] wave0, subimage
Display /N=ROI
AppendImage subimage
This is code for my main graph:
GBLoadWave/O/N=wave/T={16,80}/W=1 "D:DATA:temporalIgor.txt"
Redimension/N=(640,480) wave0
Duplicate wave0
Display /N=MyGraph
AppendImage wave0
I mean I like to switch between both(one time main and the other time ROI)
Thanks in advance.
March 11, 2014 at 11:44 am - Permalink
you could do it simply if after loading the data into wave0 and using Redimension you execute:
NewImage wave1
When you want to switch the display you execute:
After the last Duplicate the display in the graph is automatically updated.
A.G.
March 11, 2014 at 12:47 pm - Permalink
In the first code(test) , I did not modify your suggestiob yet because I want to show you exactlly what am I do. In second code(for roi)I use your code.
For example you told I can use Newimage instead of my complicate code but when I use Newimage, I can not kill my graph because it loads from Labview and you see with
DoWindow MyGraph
if(V_flag == 1)
KillWindow MyGraph
I can do that, So first question is :if I want to use Newimage how can I kill my graph?
By the way when I use Duplicate/O/R=[] wave0, wave1 again I have some problem like when I press my button of ROI, it apears in same graph as I want but immediately after loading from Labview, it changes, then second question is how can I fix it, I mean after press botton I want to see only ROI image even it loads.
The last question is I have same problem with Binning part, when I press binning button, It also apears in another greaph and I have to use AppendImage M_PixelatedImage.
Sorry for a lots of question, I am really newbie in Igor.
Thanks a lot for your helping
March 12, 2014 at 04:33 pm - Permalink
You can use the /N flag also on NewImage, so
is equivalent to:
AppendImage wave0
SetAxis/A/R left
If you're unfamiliar with some commands you can right click on them to get a help file - check out the options and flags that go with the command.
I think this is because the loading procedure duplicates the loaded file into wave1 which gets overwritten, so if it's displayed you'll see the new values. Make sure you use meaningful names for each steps in your procedures.
Use the Data Browser to see what's going in your experiment, if you don't.
March 13, 2014 at 01:40 am - Permalink