[TYPO3-dev] Speed up your Typo3 website by optimizing images

[Daniel Bruessler]

Hello,

== convert -strip ==
how much meta-data is it, what is stored in each of the files? (wc -c)

== jpegtran -optimize ==
I see -optimize stands for "Optimize Huffman table". the
Huffman-algorithm ;-)

This does really help much, doesn't it?

Maybe also this helps:
-trim          Drop non-transformable edge blocks

Cheers!
Daniel

> Hi,
> 
> I tried to run the script but faced some compatibility problems on
> NetBSD / FreeBSD system. This is due to some little nuance between Linux
> and *BSD command. I brought changes with the hope it is more Unix
> compliant.
> 
> For example this line does not work and makes the script crash.
> size1=$(stat -c%s "$i")
> 
> I changed to:
> size1=$(ls -al "$i" | awk '{ print $5 }')
> 
> Btw, I have improved a little bit the script by adding a recursive
> handling of the images.
> 
> It works now like a charm for me. I have notice a big difference size on
> some images.
> 
> My version is uploaded on the bugtracker
> http://bugs.typo3.org/view.php?id=10032
> 
> Usage:
> 
> ./strip_image_headers2.sh test typo3temp (for testing)
> ./strip_image_headers2.sh typo3temp (for real life!)
> 
> Regards,
> 
> Fabien
> 
> 
> 
> ben van 't ende [netcreators] a écrit :
>> Franz Koch wrote:
>>> Hi,
>>>> John Angel wrote:
>>>>> What if I tell you that you can significantly speed up your Typo3
>>>>> sites by optimizing images WITHOUT losing their quality?
>>>> I would say it is fantastic! :) I host one site, which has over $GB of
>>>> images. It is a pain in you-know-where to backup it. I should
>>>> definitekly try your way ;)
>>> adding "params = -strip" to every image processing done with TS (like
>>> tt_content.image.20.1.file.params = -strip" is already helping a lot.
>>>
>>> I don't think that profiles and meta data should automatically get
>>> removed when uploading a image to fileadmin or with DAM. Only images
>>> directly uploaded to the uploads folder should get stripped. If you f.e.
>>> have some kind of photo community where you would like to display the
>>> exposure, lens, shutter settings etc. you will need the meta data
>>> (EXIF).
>>>
>>
>> Hey Guys,
>>
>> Uhhhh when using DAM this behaviour should automagically be overridden
>> ofcourse.
>> Metadata is what DAM is about.
>>
>> gRTz
>>
>> ben