Unable to create grayscale images (ImageMagick/Debian)

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Author	Message
Christian Johansen	Tuesday 17 July 2007 11:29:06 pm I have an alias that creates gray scale images. However, it isn't able to create gray scale images from color jpgs... I get this: /usr/bin/convert '-quality' '75' '-colorspace' 'GRAY' 'input.jpg' 'JPEG:output.jpg', Error: , Return: 1 Which resolves to a "Bogus input colorspace". I searched around a bit, and it seems I am experiencing the exact same bug that was found in eZ Components in december: http://issues.ez.no/IssueView.php?Id=9520&activeItem=36&rv%5B%5D=8&rm=1&column=8&sortOrder=4 I am also using the same Debian package as discussed here (ImageMagick 6.2.4 02/10/07 Q16). It states that the bug is fixed in components, but how about eZ Publish? Is there a workaround?
Christian Johansen	Tuesday 24 July 2007 5:35:12 am Seems there are several ways to create grayscale images, and colorspace is probably not the one I'm looking for... First: colorspace GRAY seems to work if you do this on the commandline: convert image.jpg -colorspace GRAY dest.jpg However, eZ runs it as convert -colorspace GRAY image.jpg dest.jpg (paths and quality stripped for clarity). This way of issuing the command yields the "Bogus input colorspace" error as it seems IM is unable to read the colorspace value unless the input image is mentioned before the parameter (???) Grayscale images can be created by desaturating them or turning up the hue. So I created a filter: Filters[]=hsb/modulateHS=-modulate %1,%2 That I use as such: Filters[]=hsb/modulateHS=90;0 ...and I have my grayscale thumbnails! Wee! :)
Kim Johansen	Thursday 26 July 2007 4:32:12 am Hi Christian, I added a bug about this issue. http://issues.ez.no/IssueView.php?Id=11184 Try out Free eZ Publish 4.0 Trial Hosting for 14 days: http://webdealhosting.com/ez-publish-trial-hosting High quality eZ Publish Hosting since 2001!

Author

Message

Tuesday 17 July 2007 11:29:06 pm

I have an alias that creates gray scale images. However, it isn't able to create gray scale images from color jpgs... I get this:

/usr/bin/convert '-quality' '75' '-colorspace' 'GRAY' 'input.jpg' 'JPEG:output.jpg', Error: , Return: 1

Which resolves to a "Bogus input colorspace". I searched around a bit, and it seems I am experiencing the exact same bug that was found in eZ Components in december: http://issues.ez.no/IssueView.php?Id=9520&activeItem=36&rv%5B%5D=8&rm=1&column=8&sortOrder=4

I am also using the same Debian package as discussed here (ImageMagick 6.2.4 02/10/07 Q16). It states that the bug is fixed in components, but how about eZ Publish? Is there a workaround?

Christian Johansen

Tuesday 24 July 2007 5:35:12 am

Seems there are several ways to create grayscale images, and colorspace is probably not the one I'm looking for... First: colorspace GRAY seems to work if you do this on the commandline:

convert image.jpg -colorspace GRAY dest.jpg

However, eZ runs it as

convert -colorspace GRAY image.jpg dest.jpg

(paths and quality stripped for clarity). This way of issuing the command yields the "Bogus input colorspace" error as it seems IM is unable to read the colorspace value unless the input image is mentioned before the parameter (???)

Grayscale images can be created by desaturating them or turning up the hue. So I created a filter:

Filters[]=hsb/modulateHS=-modulate %1,%2

That I use as such:

Filters[]=hsb/modulateHS=90;0

...and I have my grayscale thumbnails! Wee! :)

Kim Johansen

Thursday 26 July 2007 4:32:12 am

Hi Christian,

I added a bug about this issue. http://issues.ez.no/IssueView.php?Id=11184

Try out Free eZ Publish 4.0 Trial Hosting for 14 days:
http://webdealhosting.com/ez-publish-trial-hosting

High quality eZ Publish Hosting since 2001!

eZ debug

Timing:	Jan 18 2025 16:16:26
Script start
Timing:	Jan 18 2025 16:16:26
Module start 'layout'
Timing:	Jan 18 2025 16:16:26
Module start 'content'
Timing:	Jan 18 2025 16:16:27
Module end 'content'
Timing:	Jan 18 2025 16:16:27
Script end

Main resources:

Total runtime	0.5931 sec
Peak memory usage	4,096.0000 KB
Database Queries	57

Timing points:

Checkpoint	Start (sec)	Duration (sec)	Memory at start (KB)	Memory used (KB)
Script start	0.0000	0.0066	588.1641	152.6563
Module start 'layout'	0.0066	0.0025	740.8203	39.5078
Module start 'content'	0.0091	0.5829	780.3281	501.6172
Module end 'content'	0.5920	0.0011	1,281.9453	12.1094
Script end	0.5931		1,294.0547

Time accumulators:

Accumulator	Duration (sec)	Duration (%)	Count	Average (sec)
Ini load
Load cache	0.0032	0.5370	16	0.0002
Check MTime	0.0013	0.2172	16	0.0001
Mysql Total
Database connection	0.0015	0.2519	1	0.0015
Mysqli_queries	0.5493	92.6111	57	0.0096
Looping result	0.0005	0.0858	55	0.0000
Template Total	0.5606	94.5	2	0.2803
Template load	0.0018	0.3053	2	0.0009
Template processing	0.5588	94.2059	2	0.2794
Template load and register function	0.0001	0.0238	1	0.0001
states
state_id_array	0.0013	0.2219	1	0.0013
state_identifier_array	0.0011	0.1863	2	0.0006
Override
Cache load	0.0015	0.2516	21	0.0001
Sytem overhead
Fetch class attribute can translate value	0.0009	0.1465	2	0.0004
Fetch class attribute name	0.0016	0.2632	3	0.0005
XML
Image XML parsing	0.0002	0.0369	2	0.0001
class_abstraction
Instantiating content class attribute	0.0000	0.0015	3	0.0000
General
dbfile	0.0006	0.0979	10	0.0001
String conversion	0.0000	0.0012	4	0.0000
Note: percentages do not add up to 100% because some accumulators overlap

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Usage	Requested template	Template	Template loaded
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3	content/datatype/view/ezxmltext.tpl	<No override>	extension/community_design/design/suncana/templates/content/datatype/view/ezxmltext.tpl
8	content/datatype/view/ezxmltags/paragraph.tpl	<No override>	extension/ezwebin/design/ezwebin/templates/content/datatype/view/ezxmltags/paragraph.tpl
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1	print_pagelayout.tpl	<No override>	extension/community/design/community/templates/print_pagelayout.tpl
Number of times templates used: 18 Number of unique templates used: 5

Time used to render debug report: 0.0001 secs