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Damn JPEG's....how small to make them...

kennysarmy

By kennysarmy
in How do you do....it?

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kennysarmy

kennysarmy

Posted
Posted

I am considering reducing ALL JPG's stored on the network to a max. dimension of 1024.

 

discuss.

 

:)

 

(this after finding a folder of out of focus and crap photos in the DT area - went from 699Mb to 26Mb when I reduced them to 1024 size - think of the file savings if I do this on all the other millions of photos!)

tech_guy

tech_guy

Posted
Posted
Gah, don't talk to me about images!!!! Noticed a load of HDD space had gone awol on one of the shares so had a shufty. Hmmmm, it was all the school reports in Word format. Shouldn't be a problem. No, wait, they've only gone and stuffed a massive bitmap of the school logo and other logos on every single one!!! Turning a 19kb Word file into a 2.4MB one........!!! For every single kid in the school. Gah.................!!!!!!!!!!!!!!!!!!!!!!!!!
dpittaway

dpittaway

Posted
Posted
I am considering reducing ALL JPG's stored on the network to a max. dimension of 1024.

 

discuss.

 

Seems like a great idea to me - I know there are tonnes of massive photos on our networks, both on shared drives and in people's home directories. It's definitely something I'd be interested in - particularly at one school where HDD space on the server is starting to reach its limits.

 

Is there a way to automate this then? I wouldn't want to just disallow images over 1024 px wide completely as this'd just cause problems -there's no way a lot of staff would know know how to resize images taken straight from a camera for instance. However, if you knew of some process that automatically resized images as they were put on the network, that'd be fantastic, although I don't see how that could be done.

 

The only thing I can think of right now is a copy of GIMP with David's Batch Processor to batch resize files, but that would obviously still take a fair amount of human work what with hunting down all the files...

enjay

enjay

Posted
Posted
Not ALL photos, but in general I agree. "Snaps" from school trips don't need to be anything more than 1024, but the Art and Biology teachers would probably skin me if I did it to some of their images.
dpittaway

dpittaway

Posted
Posted
Theres a windows photo resizer powertoy..but is xp only

 

 

Why did I not know about this...? :rolleyes:

 

Thanks for this - I'm going to check it out and see what it's like. This could save me those couple of minutes it takes for GIMP to load when all I want to do is scale an image!

 

Not ALL photos, but in general I agree. "Snaps" from school trips don't need to be anything more than 1024, but the Art and Biology teachers would probably skin me if I did it to some of their images.

In my experience, most of the images on our networks are just these type of 'snaps'. Maybe that's a difference between Primary and Secondary networks though...

dpittaway

dpittaway

Posted
Posted
What about the bulk resizing of images?

 

As I said, you can use GIMP and David's Batch Processor (both free downloads), but if this powertool Image Resizer does it with a right-click, surely you can select-all, right click and image resize?

 

Haven't tried it yet, but that's what I'd assume...

enjay

enjay

Posted
Posted

The MS tool does bulk. Also, PhotoShop can do bulk changes too.

 

Prish Image Resizer if you want something from Vista or Win7.

TechMonkey

TechMonkey

Posted
Posted
We do it with Irfanview. Set to 1024 long side. Unless it is obvious for a large print but they are very rare cases as even the art students print out on A4. Frees up so much room. A bigger problem is from the teacher who told kids to paste pics into a word document to bring them in! WHY!!!! The file sizes are HUGE
enjay

enjay

Posted
Posted
A bigger problem is from the teacher who told kids to paste pics into a word document to bring them in! WHY!!!! The file sizes are HUGE

 

We show them how to compress images in Word, PPT and so on (they often forget though).

enjay

enjay

Posted
Posted
If someone has a picture that is in a shared area inserted into a piece of work. How will the piece of work react the next time someone opens it after the image been resized?

 

Don't see it would mind so long as the filename is the same (some resizing apps append _medium or whatever to the name)

kennysarmy

kennysarmy

Posted
  • Author
Posted

We have a bought copy of advanced batch converter 3.9

 

Can hunt out all images in folders/sub folders then I just let it run - can do many things other than resize....

 

:)

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runcmd

runcmd

Posted
Posted
I know space is a big deal to most of you techies but you realise that when you compress jpgs you not only mauke them smaller is size but also drastically reduce their quality and make them only useful for geeky things such as websites?
kennysarmy

kennysarmy

Posted
  • Author
Posted
I know space is a big deal to most of you techies but you realise that when you compress jpgs you not only mauke them smaller is size but also drastically reduce their quality and make them only useful for geeky things such as websites?

 

You think?

 

How many of the JPG's on school networks get printed out larger than A3 on high quality photographic paper then?

 

Even 1024 images in my opinion are fine for inserting in to office apps and printing off full size on laser printers on rubbish paper....

 

I also dispute that it DRASTICALLY reduces their quality - was nt that long ago that digital cameras could only take at 1024 resolution - did see anyone complaining then.....

 

I personally don't even think the ART department need to be saving at 3488 x 2616 IMO...

dpittaway

dpittaway

Posted
Posted (edited)
We have a bought copy of advanced batch converter 3.9

 

Can hunt out all images in folders/sub folders then I just let it run - can do many things other than resize....

 

:)

Ah so it can be automated! Thanks for this - I will investigate this software! ;)

 

 

I know space is a big deal to most of you techies but you realise that when you compress jpgs you not only mauke them smaller is size but also drastically reduce their quality and make them only useful for geeky things such as websites?

You realise that 1024px wide is still plenty big enough for most things though, right?

 

Todays digital cameras produce absolutely HUGE images that only need to be left that way if they want to be printed on full-page A4 photo-paper and that sort of thing. And even then the original size is probably still not needed.

 

Bear in mind that you can get photos off digital cameras that are 3000px wide easily, and then consider that a 1920 px wide image is a decent size for a HD display! ;)

Edited by dpittaway
gibbo_ap

gibbo_ap

Posted
Posted
What about the bulk resizing of images in a single folder? Any personal preferences as to which program is quick and easy to use?

 

the xp power toy works for this... just select a load and right click, make sure to resize orignals

srochford

srochford

Posted
Posted
No, wait, they've only gone and stuffed a massive bitmap of the school logo and other logos on every single one!!! Turning a 19kb Word file into a 2.4MB one........!!! For every single kid in the school. Gah.................!!!!!!!!!!!!!!!!!!!!!!!!!

 

Thought I'd posted this before but I can't find it so I've written a blog post - http://www.edugeek.net/forums/blogs/srochford/278-making-word-files-smaller.html

 

It's just a script that will search a directory tree for .DOC files which are bigger than a specified size and older than a specified age. Those it finds, it will resave as .DOCX, regaining lots and lots of space :-)

dpittaway

dpittaway

Posted
Posted
Thought I'd posted this before but I can't find it so I've written a blog post - http://www.edugeek.net/forums/blogs/srochford/278-making-word-files-smaller.html

 

It's just a script that will search a directory tree for .DOC files which are bigger than a specified size and older than a specified age. Those it finds, it will resave as .DOCX, regaining lots and lots of space :-)

 

Call me dim if you want, but how is this script supposed to be run? Is it supposed to be saved as a .bat file or something similar?

 

Sounds very useful, if I can understand what to do with it! :o

 

Also, how does it work? Do I need Office 2007 on the computer I run the script on to do the convert, or does it just do it the dirty way and edit the file's properties?

powdarrmonkey

powdarrmonkey

Posted
Posted
Call me dim if you want, but how is this script supposed to be run? Is it supposed to be saved as a .bat file or something similar?

 

Nah, dim only gets called for defining variables :p

andy_b

andy_b

Posted
Posted

We use nconvert and a batch file and it seems to work quite well:

 

NConvert Software - Free graphic and photo batch converter

 

Call the batch file with the required directory, or hard code it into the batch file, and wait ;)

 

@echo off
rem if "%1"=="" goto no_files

for /R %1 %%a in (*.jpg) do nconvert.exe -out jpeg -ratio -rflag decr -resize 2048 0 -keepfiledate "%%a"
goto exit

:no_files
echo Please call batch file with folder name
echo e.g resize "s:\"
pause

:exit
exit

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