Oloneo PhotoEngine

[Phil2k]

Hi all,

I am having some issues with saving my finished files to JPEG in Oloneo PhotoEngine. When working on some of my scenic shots I bring out beautiful deep blue skies, but I lose that deep saturation once I save the finished work to JPEG, the finished JPEG has a more cobalt blue, nowhere near as rich as the working file in Oloneo that I attempted to save.

Any help would be greatly paper cited!

Phil

 

[Ysarex]

Sounds very much like a colorspace conflict between Oloneo which is colorspace aware and whatever you're viewing the output JPEG with.

Joe

 

[Phil2k]

Hi Ysarex, could you explain a little further? I just use the standard Windows Photo Viewer to view my JPEGS. Never seen a problem like this before though.

 

[Ysarex]

Your JPEG is an RGB photo. Each pixel in the photo has a (R)ed, (G)reen and (B)lue numerical value. For example R = 215, G = 164, B = 88. No universal standard exists that allows you to decode those values directly to a specific color. If all you have are those three numbers then you don't know what the color actually is. Using the RGB model requires a color space reference so that those three numbers can be decoded. The same numbers specify different colors in different color spaces and this may be causing your problem. Here's a visual:



Numerically there is only one color there: R = 180, G = 80, B = 170. To maintain color accuracy RGB photos have an embedded ICC profile that references the color space and permits correct decoding of the numerical values. You may be experiencing a failure in the software chain to correctly attach and/or read the ICC profile.

Possible cause number 2: Is your display calibrated and in preferences in Oloneo what display profile is set? We also use ICC profiles to characterize the performance of hardware. Oloneo knows this and it looks for a monitor ICC profile on your system. It uses that profile to display your photos. It's possible that other software does not. This could cause your color change.

Joe

 

[Phil2k]

Thanks Joe, I think I understand a bit better now. When I save my RAW image to JPEG Oloneo gives me a few options for the save, there is a drop down menu and sRGB is the default selection, not knowing much about this aspect of post-editing I have been choosing not to change that selection. Would a solution be to chose the other option in that drop down menu? (I forget what the other choice is)

 

[Ysarex]

Thanks Joe, I think I understand a bit better now. When I save my RAW image to JPEG Oloneo gives me a few options for the save, there is a drop down menu and sRGB is the default selection, not knowing much about this aspect of post-editing I have been choosing not to change that selection. Would a solution be to chose the other option in that drop down menu? (I forget what the other choice is)

sRGB is what you want. Your original is Raw and has no color space assigned. It's the Raw converter's job to make that assignment and then embedded the ICC profile in the final RGB file. The process of moving from the Raw to a specific color space is typically a reduction process. Not sure for Oloneo as I don't use it, but the typical practice is for the converter to open the file in a default working space that is as large as possible (usually Pro Photo RGB). On export to a finished JPEG that uses a smaller clr space (sRGB) it's possible to see some change due to coercion down, but I suspect that's not your problem. I'd take a look at what Oloneo is doing to handle you display ICC profile.

There are four commonly used color spaces right now in the photo industry.

sRGB
Pro Photo
Adobe RGB
Color Match

We can dispense with Color Match it's old "Kodak." That leaves us with sRGB, Pro Photo and Adobe. Unless you have a specific well understood reason sRGB should be your choice. Pro Photo is, how should we say, theoretical -- it's the largest (more colors) extending to cover a broader range of colors. I say theoretical because none of our hardware can approach realizing it. Begs the question what good is it to have a color your monitor or a printer can't reproduce. It's good in the Raw conversion process to begin with as large a color space as possible (Pro Photo), but then under controlled conditions bring it down to implementable practice.

sRGB was developed by an industry consortium to be a best-fit match to our current hardware. :thumbup: Got to like that; sRGB stands the best chance of looking good on your and everyone else's computer display and the prints you get from Costco, etc.

Adobe RGB was developed by Adobe in conjunction with the Press industry and is typically used there in the commercial printing business. Adobe RGB is a little larger than sRGB and it can make a visible difference if you have current high-end inkjet printers and a very expensive extended gamut display (think Ezio Coloredge). Kind of puts you in a rarified world of you own though. If you email a photo to your family make sure it's sRGB.

Joe

 

[Phil2k]

Thanks again Joe. This is a little complicated but I think I am beginning to understand a bit better. Simply put, I need to reconcile the ICC profiles of my monitor and Oloneo, correct?

I think I need to adjust the setting mentioned on this page:

http://docs.oloneo.com/en/page/photoengine-1/color-management.html

Do you know which of those 3 settings I should adopt? I'm at work right now so I cannot play around with this yet, but I would imagine I have the default setting where Oloneo "uses monitor color profile".

 

[Ysarex]

Thanks again Joe. This is a little complicated but I think I am beginning to understand a bit better. Simply put, I need to reconcile the ICC profiles of my monitor and Oloneo, correct?

I think I need to adjust the setting mentioned on this page:

http://docs.oloneo.com/en/page/photoengine-1/color-management.html

Do you know which of those 3 settings I should adopt? I'm at work right now so I cannot play around with this yet, but I would imagine I have the default setting where Oloneo "uses monitor color profile".

That's a very possible cause of your problem. Begs the question is your display calibrated? If not try the sRGB option in the dialog you just referenced. However, if your display isn't calibrated then that has to go on your to do list: X-Rite i1Display 2 Professional Monitor Calibration i1 solutions

Joe

 

[Phil2k]

I have two of these:

Viewsonic » VX2450wm-LED

They are relatively new (18 months) and I've always been under the impression that ViewSonic make very good monitors.

Does that help?

 

[Phil2k]

This thread seems to touch upon what you've been mentioning here too.

Flickr: Discussing Export To PhotoShop - Colors Flat? in Oloneo PhotoEngine Talk

 

[Phil2k]

So I checked Oloneo and as I thought I am using the monitor's color profile. Like you said Joe, it looks like Oloneo automatically saught that profile out.

Status:
Using monitor color profile: 'VX2450_SERIES.ICM'

Not sure where to go from here. I tried switching to "Use sRGB color Space" and that resulted in the loss of color and saturation within Oloneo whilst working on my RAW file.

I should probably add that my monitor is not calibrated. Is this a standard practise in digital photography? Is spending another couple of hundreds bucks on a calibrator the only way I can get the colour I see in my HDR editing software in the final JPEG?