| Re: Loading Sorted Images into a 3D array [message #77041] |
Mon, 25 July 2011 01:20 |
Carsten Lechte
Messages: 124
Registered: August 2006
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Senior Member |
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On 21/07/11 18:21, Kenneth P. Bowman wrote:
> I am sure this can be done in IDL, but it seems to me that
> the simple solution is to rename your files ...001.png, ...002.png,
> etc. That will probably make things easier in other ways also.
Or, if the filenames are not under one's control, one could try to
parse them like this:
files = string( indgen(100), format='("asdf",i0)')
print, files
fileswrong = files[ sort( files)] ; sort lexically
print, fileswrong
nums = long( strmid( fileswrong, 4))
print, nums
filesrightagain = fileswrong[ sort( nums)]
print, filesrightagain
chl
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| Re: Loading Sorted Images into a 3D array [message #77050 is a reply to message #77041] |
Thu, 21 July 2011 19:17  |
Gray
Messages: 253
Registered: February 2010
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Senior Member |
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On Jul 21, 12:57 pm, M R <manisha....@gmail.com> wrote:
> On Jul 21, 11:21 am, "Kenneth P. Bowman" <k-bow...@null.edu> wrote:
>
>
>
>
>
>
>
>
>
>> In article
>> < 4719e461-98c5-4792-851a-69e510229...@x10g2000vbl.googlegroup s.com >,
>> M R <manisha....@gmail.com> wrote:
>
>>> I have a stack of 55 png images (256 X 256, 24-bit each). I am
>>> creating a 3D array and would like to load the images in an ascending
>>> order. But this is not happening since IDL is loading them
>>> 1,10,101,.....2,20,201....and so on. How so I use the SORT command for
>>> loading them in an order?
>
>>> file=file_search('filepath*.bmp',COUNT=count)
>
>>> arm=bytarr(256,256,count,/nozero)
>
>>> for i=0,count-1 do begin
>
>>> image=read_image(file[i])
>
>>> arm[*,*,i] = image
>
>>> end
>>> end
>
>> I am sure this can be done in IDL, but it seems to me that
>> the simple solution is to rename your files ...001.png, ...002.png,
>> etc. That will probably make things easier in other ways also.
>
>> Ken Bowman
>
> It worked! Thank you!
Or, sort the numbers in a numerical format (like integers) instead of
as strings.
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| Re: Loading Sorted Images into a 3D array [message #77055 is a reply to message #77050] |
Thu, 21 July 2011 09:57 |
M R
Messages: 19
Registered: July 2011
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Junior Member |
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On Jul 21, 11:21 am, "Kenneth P. Bowman" <k-bow...@null.edu> wrote:
> In article
> < 4719e461-98c5-4792-851a-69e510229...@x10g2000vbl.googlegroup s.com >,
> M R <manisha....@gmail.com> wrote:
>
>
>
>
>
>
>
>
>
>> I have a stack of 55 png images (256 X 256, 24-bit each). I am
>> creating a 3D array and would like to load the images in an ascending
>> order. But this is not happening since IDL is loading them
>> 1,10,101,.....2,20,201....and so on. How so I use the SORT command for
>> loading them in an order?
>
>> file=file_search('filepath*.bmp',COUNT=count)
>
>> arm=bytarr(256,256,count,/nozero)
>
>> for i=0,count-1 do begin
>
>> image=read_image(file[i])
>
>> arm[*,*,i] = image
>
>> end
>> end
>
> I am sure this can be done in IDL, but it seems to me that
> the simple solution is to rename your files ...001.png, ...002.png,
> etc. That will probably make things easier in other ways also.
>
> Ken Bowman
It worked! Thank you!
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| Re: Loading Sorted Images into a 3D array [message #77056 is a reply to message #77055] |
Thu, 21 July 2011 09:21 |
Kenneth P. Bowman
Messages: 585
Registered: May 2000
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Senior Member |
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In article
<4719e461-98c5-4792-851a-69e510229f00@x10g2000vbl.googlegroups.com>,
M R <manisha.rkp@gmail.com> wrote:
> I have a stack of 55 png images (256 X 256, 24-bit each). I am
> creating a 3D array and would like to load the images in an ascending
> order. But this is not happening since IDL is loading them
> 1,10,101,.....2,20,201....and so on. How so I use the SORT command for
> loading them in an order?
>
> file=file_search('filepath*.bmp',COUNT=count)
>
> arm=bytarr(256,256,count,/nozero)
>
> for i=0,count-1 do begin
>
> image=read_image(file[i])
>
> arm[*,*,i] = image
>
> end
> end
I am sure this can be done in IDL, but it seems to me that
the simple solution is to rename your files ...001.png, ...002.png,
etc. That will probably make things easier in other ways also.
Ken Bowman
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