Search found 11 matches

by srulop
2013-11-19T02:16:22-07:00
Forum: Users
Topic: Converting 32-bit floating point grayscale raw image
Replies: 5
Views: 10206

Re: Converting 32-bit floating point grayscale raw image

Bumping.
Sorry, but still have no idea how to do it. There must be a way... :?
by srulop
2013-10-29T02:05:30-07:00
Forum: Users
Topic: Converting 32-bit floating point grayscale raw image
Replies: 5
Views: 10206

Re: Converting 32-bit floating point grayscale raw image

Thanks for the replies! tried (with "-alpha off"): convert -endian LSB -depth 32 -define quantum:format=floating-point -size "1024"x"1024"+"8192" gray:au1_6_3085.edf -normalize -alpha off -compress zip try.tif - same result (transparent .tif). Here's the raw i...
by srulop
2013-10-29T00:51:15-07:00
Forum: Users
Topic: Converting 32-bit floating point grayscale raw image
Replies: 5
Views: 10206

Re: Converting 32-bit floating point grayscale raw image

It was Q16, now compiled with Q32, tried again all commands mentioned before - same results: tiff all transparent. "convert -version" gives: Version: ImageMagick 6.8.5-7 2013-10-29 Q32 http://www.imagemagick.org Copyright: Copyright (C) 1999-2013 ImageMagick Studio LLC Features: DPC HDRI O...
by srulop
2013-10-28T08:17:39-07:00
Forum: Users
Topic: Converting 32-bit floating point grayscale raw image
Replies: 5
Views: 10206

Converting 32-bit floating point grayscale raw image

Hello, I've got raw 16 bits unsigned grayscale images with header. I can successfully convert them to "regular" tiff using: convert -endian LSB -depth 16 -size "1024"x"1024"+"8192" gray:try_pic.edf -normalize -compress zip try.tif But I've also got similar gra...
by srulop
2012-02-13T06:09:02-07:00
Forum: Users
Topic: How to convert raw image to compressed tif?
Replies: 11
Views: 87453

Re: How to convert raw image to compressed tif?

Drarakel, thanks, all problems solved!

Now the only problem that remains is to do this to some 400,000 images, some with different header sizes and different dimensions. But I guess it's an off-topic. :D
by srulop
2012-02-13T02:59:27-07:00
Forum: Users
Topic: How to convert raw image to compressed tif?
Replies: 11
Views: 87453

Re: How to convert raw image to compressed tif?

Drarakel , thank you very much - the -auto-level option gives exactly the output that I was looking for! I have read about what this option does, but I am not sure that it conserves all the data in the original image. So can I consider my new file lossless after using this option? Another strange t...
by srulop
2012-02-12T12:42:10-07:00
Forum: Users
Topic: How to convert raw image to compressed tif?
Replies: 11
Views: 87453

Re: How to convert raw image to compressed tif?

OK, compiled and installed the latest version, 6.7.5-5. Now when I do: convert -endian MSB -depth 16 -size 2048x2048+1024 gray:HM1_diffTomo_zone2_LR0001.edf -compress lzw image.tif I get: http://img841.imageshack.us/img841/127/imagegt.png Which is the same as I get in ImajeJ with big endian, and it ...
by srulop
2012-02-12T11:26:05-07:00
Forum: Users
Topic: How to convert raw image to compressed tif?
Replies: 11
Views: 87453

Re: How to convert raw image to compressed tif?

I use version 6.6.0. With your line, I got the following result: http://img18.imageshack.us/img18/6074/imageit.png Is that what you got? The correct result should look like that: http://img594.imageshack.us/img594/7701/correctu.jpg I got this with ImageJ, little endian option. By the way, ImajeJ sav...
by srulop
2012-02-12T09:11:40-07:00
Forum: Users
Topic: How to convert raw image to compressed tif?
Replies: 11
Views: 87453

Re: How to convert raw image to compressed tif?

OK, Tried to set endianness:
+endian, -endian msb cause a distorted image, each in it's own way.
-endian lsb - makes black image, as before.

I've got a feeling that it's because it sees it as signed 16 bit. How do I tell it to read it as unsigned 16 bit?
by srulop
2012-02-12T07:32:53-07:00
Forum: Users
Topic: How to convert raw image to compressed tif?
Replies: 11
Views: 87453

Re: How to convert raw image to compressed tif?

Thanks for the fast reply! * The third argument in -size is from the tip here: http://www2.fz-juelich.de/vislab/software/www/convert.html And it actually works, when I indicate "-depth 8" - I get a non-black image, just not the correct form. * changed the placing of -compress: convert -dep...
by srulop
2012-02-12T06:55:48-07:00
Forum: Users
Topic: How to convert raw image to compressed tif?
Replies: 11
Views: 87453

How to convert raw image to compressed tif?

Hello, I have a bunch of raw images like this one (about 8M each): http://dl.dropbox.com/u/14434681/HM1_diffTomo_zone2_LR0001.edf They are 2048x2048 in size, "unsigned short datatype", and have a 1024 bytes header. The colors are grayscale. I want to convert them to compressed tif images, ...