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Re: Processing about 10,000 tif files [message #91010 is a reply to message #90976]

Sun, 24 May 2015 18:23

andrewcool777
Messages: 27
Registered: November 2012

Junior Member

On Wednesday, 20 May 2015 06:37:39 UTC+9:30, livingw...@gmail.com wrote:
> Dear Gurus,
>
> I have RGB images in tif format and want to do simple arithmetic calculations.
> A big obstacle to me is number of files to be processed, about 10,000 images.
> Name of the image files has sequential id such as img_1.tif, img_2.tif, ....., img_10000.tif.
> And I have a text file containing image names, coefficients, and offsets.
> I think reading the text file as an array with three columns and lines matching number of files seems to be successful.
>
> I've tried to read image files with dialog_pickfile, but I've learned that the function limits byte length and can't seem to go beyond more than 2,000 files or so.
> And I've tried to read image files with file_search, but it didn't do calculation in sequential order.
>
> Would you give some suggestion how to read image files in order, so that following calculation should be in order from 1 to 10,000?
> Or a way to do calculation with image name corresponding lines in the text file?
>
> Thanks in advance,
> Kim

How about just rename the files img_00001.tif to img_09999.tif? Solve many problems in a very few lines of code.

And while you're at it, insert some useful coefficients and offsets ino the filenames too.

Andrew

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[Message index]

		Processing about 10,000 tif files By: livingwater000 on Tue, 19 May 2015 14:07
		Re: Processing about 10,000 tif files By: Helder Marchetto on Tue, 19 May 2015 15:03
		Re: Processing about 10,000 tif files By: Helder Marchetto on Tue, 19 May 2015 15:12
		Re: Processing about 10,000 tif files By: livingwater000 on Tue, 19 May 2015 18:01
		Re: Processing about 10,000 tif files By: andrewcool777 on Sun, 24 May 2015 18:23
		Re: Processing about 10,000 tif files By: cgguido on Tue, 26 May 2015 19:05

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