I have just installed and configured GDL today. It appears to be working correctly so far. However I have a problem with displaying images. I have wrote this procedure
PRO get_image
file = FILEPATH('gray_scale.jpg',ROOT_DIR='/home/jamie/Documents/gdl/gdl_test_scripts')
read_jpeg,file, image
window, xsize=500, ysize=500
tvscl, image
END
which I though would display a jpeg. however it only displays a blank window. i have tested tvscl by typing at the gdl prompt
>> tvscl, dist(200)
and an image appears. Therefore I think there is something wrong with the way I am using read_jpeg. Could anyone advise on what I am doing wrong
tia
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Which version of GDL are you using ? (I strongly recommend the CVS one, because we worked on READ_JPEG during last months)
Within the CVS version, please run the code testsuite/test_read_standard_images.pro
(all 6 test cases should be OK)
Nevertheless I have 2 other gray scale images with problems.
Please take into account we have problem in current Ubuntu 12.04 and buggy ImageMagick . In that case, I advice to compile GDL using the configure way, deactivating ImageMagick and activating GraphicsMagick
Alain
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Hello,
I have installed gdl on my mac os x 10.6. Everything goes well except that read_image doesn't work. I suspected this may be related to the error I received when I ran gdl:
GDL - GNU Data Language, Version 0.9.2
- For basic information type HELP,/INFO
- No startup file read (GDL_STARTUP/IDL_STARTUP env. var. not set).
Then I did something and got the following error the next time I ran gdl:
GDL - GNU Data Language, Version 0.9.2
The message you described as an error ("No startup file read…") is not an error - startup files are generally only used for some custom configuration, or non-standard installation layouts.
Please describe how you installed GDL and what you mean by "read_image doesn't work" - otherwise it's hard to help.
Sylwester
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Hum, I also two possible causes of problem:
1/ do you have the right to write on /Users/MATH/ (are you the owner, is this dir. in 755 mode ?)
2/ is your OSX system allows Min/Maj diff ? (this can be tested outside GDL) [I had similar problems,
not solved up to now, see the testsuite]
Alain
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I installed gdl with fink.
I am the administrator user so there is no problem there.
When I type:
GDL> tvscl,dist(500)
an image appears, but when I want to use read_image no image appears:
GDL> image = read_image(filepath('ch.jpg',root_dir='/users/math/desktop'))
% Function not found: READ_IMAGE
% Execution halted at: $MAIN$
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you can copy all these *.pro and put them into the adequate path in your fink installation
(I don't know where it is, under Linux it is usually in /usr/local/share/gnudatalangage/lib/pro, somethings like
that, a "find" or a "locate" should help.)
Alain
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dear forum,
I have just installed and configured GDL today. It appears to be working correctly so far. However I have a problem with displaying images. I have wrote this procedure
PRO get_image
file = FILEPATH('gray_scale.jpg',ROOT_DIR='/home/jamie/Documents/gdl/gdl_test_scripts')
read_jpeg,file, image
window, xsize=500, ysize=500
tvscl, image
END
which I though would display a jpeg. however it only displays a blank window. i have tested tvscl by typing at the gdl prompt
>> tvscl, dist(200)
and an image appears. Therefore I think there is something wrong with the way I am using read_jpeg. Could anyone advise on what I am doing wrong
tia
Which version of GDL are you using ? (I strongly recommend the CVS one, because we worked on READ_JPEG during last months)
Within the CVS version, please run the code testsuite/test_read_standard_images.pro
(all 6 test cases should be OK)
Nevertheless I have 2 other gray scale images with problems.
Please take into account we have problem in current Ubuntu 12.04 and buggy ImageMagick . In that case, I advice to compile GDL using the configure way, deactivating ImageMagick and activating GraphicsMagick
Alain
Hello,
I have installed gdl on my mac os x 10.6. Everything goes well except that read_image doesn't work. I suspected this may be related to the error I received when I ran gdl:
GDL - GNU Data Language, Version 0.9.2
- For basic information type HELP,/INFO
- No startup file read (GDL_STARTUP/IDL_STARTUP env. var. not set).
Then I did something and got the following error the next time I ran gdl:
GDL - GNU Data Language, Version 0.9.2
- For basic information type HELP,/INFO
- Please report bugs, feature or help requests and patches at:
http://sourceforge.net/projects/gnudatalanguage/
% Error opening startup file: /Users/MATH/.gdl_startup
Can anyone please help me fix this? (I am really novice with mac and bash)
Hi,
The message you described as an error ("No startup file read…") is not an error - startup files are generally only used for some custom configuration, or non-standard installation layouts.
Please describe how you installed GDL and what you mean by "read_image doesn't work" - otherwise it's hard to help.
Sylwester
Hum, I also two possible causes of problem:
1/ do you have the right to write on /Users/MATH/ (are you the owner, is this dir. in 755 mode ?)
2/ is your OSX system allows Min/Maj diff ? (this can be tested outside GDL) [I had similar problems,
not solved up to now, see the testsuite]
Alain
I installed gdl with fink.
I am the administrator user so there is no problem there.
When I type:
GDL> tvscl,dist(500)
an image appears, but when I want to use read_image no image appears:
GDL> image = read_image(filepath('ch.jpg',root_dir='/users/math/desktop'))
% Function not found: READ_IMAGE
% Execution halted at: $MAIN$
that is strange, because DIST and READ_IMAGE are in the same dir.
yes, READ_IMAGE is in the CVS under src/pro
http://gnudatalanguage.cvs.sourceforge.net/viewvc/gnudatalanguage/gdl/src/pro/
you can copy all these *.pro and put them into the adequate path in your fink installation
(I don't know where it is, under Linux it is usually in /usr/local/share/gnudatalangage/lib/pro, somethings like
that, a "find" or a "locate" should help.)
Alain
Hum, I checked the GDL page in fink and it seems that GDL was "packaged" in fink in Feb 13
but I added READ_IMAGE to the CVS the 15, Feb !
You can download all the files in the CVS under the src/pro and substitute them to the older versions
you have, somewhere in a dir. created by fink !