photoshop question about 300k file size

Canon EF-S 15-85mm f/3.5-5.6 IS USM

02/02/2012 07:29:26 PM · #1

So I just finished my entry for magic and mystery.

When I resize it (and it doesn't seem to matter whether it's in multiple steps or one), and save for web at 300k file limit, the quality is at 59%. Which seems extremely low.

Anything I can do to boost this, or am I stuck?

NiallOTuama

Google Pixel 2

02/02/2012 07:37:11 PM · #2

Reduce the size of the image, I reckon. 720 is what Steve suggested one time to me a long time ago. You don't save a whole bunch, but it's find. I assuming you're minimising the metadata when saving for web?

I think you might get some 'gain' too in playing around with the interpolation features in save for web. I don't know if ther's a sure way of getting it smaller, but play around with the dials etc.

Other than that selective sharpening might work too if the whole image doesn't need to be sharpened.

For the sake of it export one at 100% and see if you can tell the difference.

Message edited by author 2012-02-02 19:39:12.

DCNUTTER

Canon EOS-7D

02/02/2012 07:37:17 PM · #3

Originally posted by vawendy:

Are you using the save for web function and inputting the file size you want it reduced to? If so the only real other option is a tighter to reduce some of the photo data in the photo. Color photos, and color photos with a lot of details and sharpening will always be hard to get down to size. That's why I love B&W...no color data and the file still maintains nice quality when reduced.

Dave

adigitalromance

Nikon D750

Nikon AF-S NIKKOR 24-70mm f/2.8G ED

02/02/2012 07:47:39 PM · #4

I agree about trying to resize the image. This is a very effective way at reducing file size.

An image with double the pixel dimensions actually has 4 times the amount of data (and is therefore 4 times as large) since you double the height and the width.

Also, is the image heavily sharpened, or sharpened with a lot of detail?

Lots of sharpening of fine detail can increase the file size. You might tone that back a bit or soften some of the areas with lots of sharpened detail.

02/02/2012 07:53:49 PM · #5

Originally posted by DCNUTTER:

Originally posted by vawendy:
So I just finished my entry for magic and mystery.

When I resize it (and it doesn't seem to matter whether it's in multiple steps or one), and save for web at 300k file limit, the quality is at 59%. Which seems extremely low.

Anything I can do to boost this, or am I stuck?

Are you using the save for web function and inputting the file size you want it reduced to? If so the only real other option is a tighter to reduce some of the photo data in the photo. Color photos, and color photos with a lot of details and sharpening will always be hard to get down to size. That's why I love B&W...no color data and the file still maintains nice quality when reduced.

Dave

Yup. I'm inputting the 300k file size.

This is definitely color with a lot of details. Not much sharpening, actually, even though it will really look like it. :)

02/02/2012 07:57:27 PM · #6

When I don't sharpen after resize, I get 2 more %. I'm at 61%, but that's still so much worse than 100%. :)

I'll go see what difference 780 pixels makes. But there's already so much lost in the resizing process. I'd rather have 1200 pixels than 800 on this one.