Save for web and upload for challenge issue

Canon EF 100mm f/2.8L Macro IS USM

07/30/2014 06:22:10 PM · #1

There is a difference between the brightness of the image as seen on my monitor in explorer / PS and how it looks after I upload. After uploading is slightly darker.

Any ideas?

Thanks

giantmike

Canon EOS R6

07/30/2014 08:29:56 PM · #2

I don't use photoshop, but I often notice that before saving as JPEG I have to use levels to give a little boost if I want the same brightness after the save.

GeneralE

Canon PowerShot S3 IS

Canon 12x IS USM (S3 IS built-in Lens) -- 36-432mm (35mm EQ)

07/30/2014 08:38:36 PM · #3

Welcome to the ~~hellhole~~ amazing world of color-management!

Some profile somewhere is probably set to something other than sRGB -- there are something like 3-8 different settings which can affect how color is displayed in various programs/browsers.

You'll probably have to wait for

kirbic or one of the other engineering types to find this thread to get the ~~gory~~ fascinating details and possibly recommendations -- my own cameras have always captured in sRGB anyway, and I've never changed my settings (for over a decade) so I'm not much help in that regard ...

Bear_Music

Samsung Galaxy S24 Ultra

Sony 24-70mm F4 Vario-Tessar T* FE OSS

07/30/2014 08:58:55 PM · #4

On a much more simplistic level, I've been using the default (very dark) background while processing images in CC: I realized some of the images don't look anywhere near as peppy when posted to DPC. I changed the BG in CC to a light grey the same as DPC's, and now my images look a little less bright in CC, and I realize that was my problem. So the BG you are viewing against matters. A LOT!

GeneralE

Canon PowerShot S3 IS

Canon 12x IS USM (S3 IS built-in Lens) -- 36-432mm (35mm EQ)

07/30/2014 09:13:38 PM · #5

Originally posted by Bear_Music:

So the BG you are viewing against matters. A LOT!

There is a reason the walls in photo editors' offices (and the DPC voting page BG) are approximately 18% neutral gray* ... note this is the same value your camera assumes to set automatic exposures, and you what could be using (printed on a card) to set a custom white balance.

*and provided with daylight-balanced lighting

Nikon AF-S Nikkor 17-35mm f/2.8D IF-ED

07/31/2014 01:38:24 AM · #6

I use the lightest gray grey BG in PS. I convert to sRGB when save for web. I look at the image I saved in various imaged browsers on my computer, the PS window and they all look the same. After uploading to dpc the image is appears darker and seems that I loose a lot of details in the shades :(

Edit:

I uploaded and then saved the image back to my computer and the image looks the same.

I then adjusted the size of my Chrome browser so I can eliminate as much of the BG as possible. The image looks darker in the browser.

Confusing...

Message edited by author 2014-07-31 01:49:31.

tanguera

Nikon D750

07/31/2014 01:46:12 AM · #7

Originally posted by GeneralE:

Welcome to the ~~hellhole~~ amazing world of color-management

Yeah. Welcome.

Did this dance a while ago and in my case it was different color spaces. Note that there are about 3-4 different places where you need to set the color space. As long as all those places share the same color space, there shouldn't be an issue. It's when one of them gets changed for some reason that the image will not post the same way it looks on the computer.

Nikon AF-S DX 18-105 f/3.5-5.6 ED VR

07/31/2014 01:52:54 AM · #8

I played with the levels just a bit and uploaded a slightly brighter image. This looks very close to what I see in PS.

On my wife's Mac looks even darker. My monitor is calibrated hers not.

Edit: I have played again with the levels and finally got something that looks almost the same on my laptop, my wife's Mac and on my iPad.

Message edited by author 2014-07-31 02:11:52.

jomari

Nikon D7000

07/31/2014 02:13:27 AM · #9

Originally posted by tanguera:

Originally posted by GeneralE:
Welcome to the ~~hellhole~~ amazing world of color-management

Yeah. Welcome.

Did this dance a while ago and in my case it was different color spaces. Note that there are about 3-4 different places where you need to set the color space. As long as all those places share the same color space, there shouldn't be an issue. It's when one of them gets changed for some reason that the image will not post the same way it looks on the computer.

Aha! My Secondary Colors entry looked like the purple was purple on my screen (PSCS3) but when I submitted the purple was blue. I had to re-do.

kirbic

Canon EOS R5

Canon RF 24-70mm f/2.8 L IS

07/31/2014 08:31:48 AM · #10

I think that Robert nailed it, actually. The difference in viewing backgrounds can have a significant effect, and since you are not seeing color shifts, I believe that background-related perception changes may be at least partly at fault.

LanndonKane

Nikon D800

Nikon AF-S Nikkor 16-35 f/4 ED VR

07/31/2014 09:37:50 AM · #11

easy way to prove if you're actually seeing different things, or if it's in your head.

bring up the picture in photoshop, and then beside it, bring up the browser version, and arrange them in your monitor so they're both visible. take a screenshot, and then bring the screenshot back into photoshop, and then compare the colours with the colour picker tool (or cut them out, stack them on top of each other and toggle back and forth).