How to properly resize with vibrant colors ???

[canoncurious]

Okay, this is the question that no photographer seems to know the answer to. How do you resize a picture, have vibrant color and a great quality crisp image and the file size be under 100kb or so ?

Nobody knows but I know it can be done. I hate to use this as a reference, but I see porn pictures on the web that crisp, clean, sharp and vibrant colors...and get this....the file size will be something like 64KB or 88KB.

How do they do it ? Not downing any industry or person but.....I figure if the porn industry can figure it out, why can't other photographers ?

Does ANYBODY know how to do it ?

Believe me, I've seen my share of posts that say "Select save for web and then adjust the quality slider". Trust me guys, that's not the way. That sucks out all the color and adds major distortion.

Somebody has to know. I'm determined to find out. As a last resort, maybe I'll have to email a porn webmaster.

I just think it's wild that they know and we don't.

[Radtech1]

That's easy! Just select Save for Web and then adjust the quality slider.

Oh, and make sure your working color space is sRBG IEC61966-2.1 and that Conversion Intent is set to Relative Colormetric or at least Perceptual.

And if working on a PC rather than a Mac, make sure that your Color Picker is set to Adobe and not Windows.

Rad

[EOS_JD]

Before saving for the web, I usually resize my photo manually. Image should be about 800 pixels on the longest axis. Then save for web and your image will be very small without losing that quality issue you mention.

[jj1987]

Save for web works. www.eng.ufl.edu are all downsized, then use the save for web feature.

[canoncurious]

Okay....I'm gonna try this stuff you guys are suggesting. However, when you all say convert to sRGB...are you meaning the one that says sRGB IEC61966-2.1, e-sRGB, or sRGB Profile ?

Those 3 are choices when I have Photoshop CS open.

I'm lost on that part.

Also, what does "SAVE FOR WEB" do that "SAVE AS" doesn't ? How do they differ ?

[jj1987]

save for web offers more compression options than the save as feature.

I personally dont save with a profile. Most browsers dont support them except safari.

Also, I rarely use save for web for posting on a message board. I assume that by now, being 2006 everyone has dsl, cable or something faster. If not, they will more than likely not like having to wait for a 100k file any more than they like waiting for a 150k file.

[maderito]

Okay....I'm gonna try this stuff you guys are suggesting. However, when you all say convert to sRGB...are you meaning the one that says sRGB IEC61966-2.1, e-sRGB, or sRGB Profile ?

Those 3 are choices when I have Photoshop CS open.

I'm lost on that part.

Also, what does "SAVE FOR WEB" do that "SAVE AS" doesn't ? How do they differ ? sRGB IEC61966-2.1 and sRGB profiles should be the same, unless the files have been corrupted. e-sRGB is entirely different, a very large color space proposed by HP. It has not been adopted as a standard web color space - so don't use it.

When you make the conversion from Adobe RGB to sRGB and view within Photoshop, nothing will seem to have changed - because PS is color managed. Outside of PS - in your web browser - the image will appear as intended, very close to the Adobe RGB image you started with in PS. If you had not made the conversion, the image would appear desaturated - less vivid - in your web browser.

Incidentally - PS's Save for the Web JPEG conversions and optimizations are quite good and don't "suck the color" out of images that are properly handled.

[DavidW]

"Sucking out the colours" sounds very much, as others have said, that you're taking an image in Adobe RGB and using Save As Web on it, either outputting without a profile, or viewing the results in a non-colour managed browser / application.

Convert to sRGB - in many cases Relative Colorimetric will be the right rendering intent to use for the conversion, in other cases Perceptual will be correct.



David