How to batch resize images to keep under a certain size

[webbber]

Hi all,

I'd appreciate a bit of help on this. I have a collection of about 600 photos from my wedding. I will be uploading them to a photo website to make prints, and the photos need to be under 10mb.

I have been dabbling with mogrify and the gimp tools, but I have not been able to achieve what I would like to do, which is to batch resize a folder full of images with the scaling automatically determined so that the final image size is under 10mb.

Anyone got any ideas? There may be a program that does this, or it may be a matter of scripting.

Thanks

Leigh

[nothingspecial]

You could try imagemagick.

I don't know if you can specify a size in mb but to reduce all the photo's by half

for p in *.jpg; do convert -resize 50% "$p" new_"$p"; done

Use 75% or whatever is suitable for your requirements.

This assumes they all end with a .jpg extension, change that bit if they don't.

[webbber]

You could try imagemagick.

I don't know if you can specify a size in mb but to reduce all the photo's by half

for p in *.jpg; do convert -resize 50% "$p" new_"$p"; done

Use 75% or whatever is suitable for your requirements.

This assumes they all end with a .jpg extension, change that bit if they don't.

Thanks for the above. It was really something a bit more fancy whereby imagemagick or another program actually scaled automatically so that all final images were 10mb.

[haqking]

you can also do this from right click context menu in nautilus

sudo apt-get install nautilus-image-converter imagemagick

then select images and choose edit menu or right click

[Bonster]

try phatch

[coldraven]

+1 phatch
It has a maximum file size in the save options

[tomek_wap]

you can also do this from right click context menu in nautilus

sudo apt-get install nautilus-image-converter imagemagick

then select images and choose edit menu or right click

the above doesnt seem to work. there's nothing from the right click menu.

Phatch seems unusable.


but

"mogrify -resize 1024x800 -format -quality 85 jpg *" in terminal works perfectly

[haqking]

the above doesnt seem to work. there's nothing from the right click menu.

Phatch seems unusable.


but

"mogrify -resize 1024x800 -format -quality 85 jpg *" in terminal works perfectly

that depends on what you are using, it is only good for nautilus and you need to log out and back in again first.

Anyways use what works for ya.

cheers

[tomek_wap]

Indeed
Needed to re-log in.
Works now. And qualitywise not bad either.
Thnx

[haqking]

Indeed
Needed to re-log in.
Works now. And qualitywise not bad either.
Thnx

no worries, you are welcome.