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2 Replies and 1136 Views
repaint 1136 2
Started by Deleted User
i create window by WINDOW procedure, then draw output data there.
If i resize window to small and next large sizes the picture will clip
How repaint my image
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2 |
1136 |
23 Feb 2007 03:36 PM |
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1 Replies and 1312 Views
bad case of not calling a spade a spade 1312 1
Started by Deleted User
This is a quirky problem. (I'm using IDL 6.1 on linux.) I've got a standard, comma-delimited text file with 2 columns I need made into 1D arrays. So this is what I do:
myData = read_ascii(filename, DATA_START=1, $ ; skipping line 1
DELIMITER=',', COUNT=n)
time = myData.field1&910,*&93 ; time array to hold column 1 of in-file
series = myData.field1&911,*&93 ; series array to hold column 2 of in-file
(First, an aside: It doesn't matter if I use the DELIMITER ...
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1 |
1312 |
23 Feb 2007 02:33 PM |
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0 Replies and 1331 Views
union of two polygons 1331 0
Started by Deleted User
Hello,
I have two polygons drawn on the same image and I would like to merge them into one polygon. I know there is a function written by M. Meron which finds the overlap shape of two shapes, but I want something that gives me the shape which consists of the union of two shapes. Can anyone help please
Thanks.
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0 |
1331 |
22 Feb 2007 09:21 AM |
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1 Replies and 1723 Views
Rule in IDL 1723 1
Started by Deleted User
Anyone can tell me how can I make rules for advanced image classification using IDL.
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1 |
1723 |
21 Feb 2007 02:56 PM |
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0 |
1245 |
21 Feb 2007 10:01 AM |
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0 Replies and 1287 Views
Windows GUI 1287 0
Started by Deleted User
I'm good at GUI in Visual Basic, but I can't seem to figure out GUI programming in IDL. The Example Application in the Help menu isn't really helpful. They're starting out with too complicated of a program in choosing to make an image editor. And they use terms I'm not familiar with such as 'top level base'.
Can anyone step me through a simpler example
For example, I'd like to create a calculator that adds two numbers. The GUI should have 2 text boxes to accept input, a label for the ...
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0 |
1287 |
20 Feb 2007 01:53 AM |
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0 Replies and 1293 Views
high resolution maps in idl 6.3 1293 0
Started by Deleted User
does high resolution maps excluded from idl 6.3
i get warning message when use /HIRES keyword :(
i run install idl 6.3 there no high resolution maps component as it was at idl 6.2
(or may be ENVI)
so why you discard it
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0 |
1293 |
19 Feb 2007 03:20 PM |
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1 Replies and 1284 Views
How to Decompose an image 1284 1
Started by Deleted User
How to decompose and image and how to see its coefficients in IDL. whether any program or code or command is available.
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1 |
1284 |
19 Feb 2007 09:23 AM |
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1 |
1224 |
16 Feb 2007 07:32 PM |
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1 Replies and 1330 Views
Subset LAS file via ROI -- ERROR 1330 1
Started by Deleted User
Hi,
I have raster file generated by ENVI from LAS 1.1 file.
I try to subset the data via ROI and I encounter problems.
Here are the step I'm doing:
1. Open the raster
2. Define a ROI
3. Select the 'subset data via ROI' from the LiDAR tool menu
4. Select the LAS file that originaly was used to create the raster
5. Select the ROI option, set to the correct ROI, select the output name and start the process
6. Got the following warning/error :
'The selected files do not c...
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1 |
1330 |
16 Feb 2007 09:43 AM |
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1 Replies and 1285 Views
how to display 16-bit signed integer image 1285 1
Started by Deleted User
I want to open a 16-bit signed integer image (MODIS satellite image) in IDL. The TV command are displaying only 8-bit data. When I loaded 16-bit data using TV command the output is like a binary image with black and white dots. So to load 16-bit data whether there is any command in IDL.
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1 |
1285 |
16 Feb 2007 07:17 AM |
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1 Replies and 1307 Views
Windows question 1307 1
Started by Deleted User
Hi all. I just got my IDL student edition for Windows today. I'm excited to have this on my home computer (no more waiting at school for a terminal :)
I have a few questions:
I wrote a short IDL program on my school's computer, but it won't run on my home PC.
My first error was the undefined variable'readfits'. I'm new at this. I had no idea that readfits wasn't simply part of the language.
So I downloaded readfits.pro from the Nasa site and put it in my Lib folder.
That too...
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1 |
1307 |
15 Feb 2007 12:34 PM |
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2 Replies and 1417 Views
Determining mean counts outside a ROI 1417 2
Started by Deleted User
I am new to IDL and would appreciate any help I get.
I wish to determine the mean number of counts outside a circular region of interest drawn on an image. I thought I would sum the total number of counts in the image and then subtract the total counts within the ROI. Is there a particular function that is most appropriate for doing this I still have the problem of determining the number of non-zero count pixel outside the ROI. Can anyone suggest an appropriate function
Thanks
Mark
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2 |
1417 |
15 Feb 2007 06:52 AM |
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3 Replies and 1503 Views
global variable 1503 3
Started by Deleted User
Dear all, How can I create a global variable with IDL 6.3 (In matlab I use a command 'global'
Thank you!
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3 |
1503 |
09 Feb 2007 10:02 AM |
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1 Replies and 1264 Views
Uneven Background 1264 1
Started by Deleted User
Hi,
I have an image consisting of bright spots which happens to be on an uneven background. That is the bright spots are on some patchy dark areas to brighter areas. Is there a way of correcting the background and making it even I have tried different filters, and sharpen functions in IDL and none really does the trick...maybe I need to do more complicated processing
Thanks
radha
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1 |
1264 |
08 Feb 2007 02:15 PM |
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2 Replies and 1372 Views
Math Function Question 1372 2
Started by Deleted User
Is there 'e raised to the complex number' or ' e raised to the imaginary part of a complex number'
( 'e' being a natural log base ) math function available in IDL
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2 |
1372 |
04 Feb 2007 03:22 PM |
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1 Replies and 1548 Views
create arrays 1548 1
Started by Deleted User
Dear all,
If I have two arrays El and Az in input to an algorithm how can I contruct a matrix G with rows of this type:
G=&91cos(El)*cos(Az),cos(El)*sin(Az),sin(El),1&93
P.S.I know the number and the value of elements of the arrays El and Az
Thank you very much!
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1 |
1548 |
04 Feb 2007 09:47 AM |
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1 Replies and 1326 Views
ION 6.3 1326 1
Started by Deleted User
Does ION 6.3 works on JRE1.6 (SDK1.6)
i can't run any examples on it
but examples working in JRE1.5
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1 |
1326 |
03 Feb 2007 11:03 AM |
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1 Replies and 1705 Views
moving window 1705 1
Started by Deleted User
Hello,
I need to filter some noise out of an image and was pointed towards
making a moving/sliding window (size, say 7x7) and compare the center
pixel with surrounding pixels right next to border (ignoring middle
pixels). And compare the value of center pixel with the border average
pixels and thus filter out noise. However, I am not sure how to do
this. I am thinking of making a kernel&917,7&93, but not sure how to move it across the image and computer pixel values using it.
Anyone has...
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1 |
1705 |
01 Feb 2007 08:03 PM |
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1 Replies and 1700 Views
How to compute inverse complex matrix? 1700 1
Started by Deleted User
Hi all:
I try to solve a series of linear equation. For example, let A is 2X3 matrix. B is unknown variable.
( 1.00000, 0.000000)( 0.000000, 2.00000)
A=( 4.00000, 0.000000)( 2.00000, 0.000000) transpose(B)= (a,b).
( 3.00000, 0.000000)( 5.00000, 0.000000)
Transpose(C)= (1,2,3). Then AB=C.
Now I let A_plus=inverse matrix of {transpose(A)A}transpose(A). Then B=A_plusC
I can find the variable B. I use the followin...
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1 |
1700 |
31 Jan 2007 05:23 PM |