[opencms-dev] OpenCms not scaling images

Matt Levy mlevy at fta.co.uk
Fri Jan 22 16:08:12 CET 2010

Hi Stefano,
Have you checked that the image is RGB and not CMYK? We have had similar issues with jpegs that are print ready.


From: opencms-dev-bounces at opencms.org on behalf of Stefano Taglieri
Sent: Fri 22/01/2010 15:02
To: opencms-dev at opencms.org
Subject: [opencms-dev] OpenCms not scaling images

I have troubles with the OpenCms native image scaling mechanism.

Test 1) At first, I have tried to use the <cms:img> tag (experimenting with different values of width, height and scaletype), but the result is an image resized by the browser. That is, in the resulting html I have an <img> tag with attributes width and height set to the expected values, but an src attribute pointing to a perfect copy of the original image (i.e. an image with the same width and height of the source image).

Test 2) Then, I have visited the "Test for the 'cms:img' tag" page inside the OpenCms documentation of my OpenCms installation; what I get is a page containing the same test image repeated in each box (i.e. it is not resized as in, for example, http://www.bng-queremosmais.org/opencms/opencms/alkacon-documentation/documentation_taglib/test_tag_img.jsp <https://ssl.fta.co.uk/,host=cafadd79e518d8d36b76a9058d95cec5778776ef6ae105a065697227faacb423f0a0438aa115e868,port=80,proto=http/opencms/opencms/alkacon-documentation/documentation_taglib/test_tag_img.jsp>  )

Test 3) I have tried to point my browser directly to an image URL passing the right querystring (e.g. http://www.mysite.com/home_it/media/img/image.jpg?__scale=w:320,h:240,t:2 <https://ssl.fta.co.uk/,host=6ee06858be4358ed7ba3f9ef11ae2b09eef3178d00939303c9569d4d01b32220,port=80,proto=http/home_it/media/img/anp/area-marina-protetta/cinque-terre/cinque-terre.jpg?__scale=w:320,h:240,t:2>  ) but nothing happens: the result is -again- an image with the same width and height of the source image.

These tests have been done on an installation of OpenCms 7.5.1 with Tomcat 6 + Apache with mod_jk on Windows and Linux. I have tried to upgrade to OpenCms 7.5.2 but nothing changes.

I have checked that image.scaling.enabled is set to true in opencms-vfs.xml. 
I really can't figure out what's wrong...do you have any idea?

Thank you,

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