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05/08/2004 09:07:50 PM · #1 |
I just uploaded a portrait which I very carefully adjusted for color in Photoshop. I noticed that it looked more red than I had wanted. I opened the photo in PS and compared the one in my portfolio and it does look different. I know different monitors read color differently but I never realized what I saw in PS was not necessarily what I would see in IE on the same monitor. How do I adjust for this?
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05/08/2004 09:11:57 PM · #2 |
different color spaces i think... are you adjusting in Adobe RGB? I think the web uses sRGB
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05/08/2004 09:18:14 PM · #3 |
There were two threads on this, this week. Do a search on colorspace and you'll see some real good explainations of what you can do to correct this.
-danny
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05/08/2004 09:20:03 PM · #4 |
Originally posted by hsteg:
different color spaces i think... are you adjusting in Adobe RGB? I think the web uses sRGB |
Yes. Did you mean to type sRGB or was that a typo? I'm not a real tech-head so I wouldn't know the difference. :-)
Does it look particularly red to anyone else?
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05/08/2004 09:21:13 PM · #5 |
Originally posted by crabappl3:
There were two threads on this, this week. Do a search on colorspace and you'll see some real good explainations of what you can do to correct this.
-danny |
Thanks. I didn't even know there was a term, 'colorspace'.
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05/08/2004 09:38:47 PM · #6 |
Okay. I found that thread and I have to admit to befuddlement. I followed the thread for ahwile but then I might as well have been reading ????????? because that is how my ADHD brain reacted. I have a really difficult time reading really technical stuff. I only seem to have RGB in Photoshop 4 (I have PS 7 on my laptop but that computer has been giving me grief. How do I convert to sRGB? Do I need to use PS 7?
Do I do this once I've adjusted the levels in RGB? Here's what I know about this stuff. RGB---good for monitor viewing. CMYK--good for printing. I've pretty much fiddled my way through figuring out Photoshop over the years and I know I'm not using it anywhere near it's potential. But when I try to read a manual or tips on the web I find myself reading the information over and over again and not absorbing any of it. If anyone reading this has ADHD, or a similar learning challenge, I'm sure you'll sympathise.
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05/08/2004 09:44:23 PM · #7 |
| In PS7, I've been using the default colorspace "sRGB IEC61966-2.1" and my "save for the web" pics always look different from how it looks in PS. So, is their a clear answer as to what color space to use to make your PS image color look the same as when it's on the web page? |
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05/08/2004 09:50:50 PM · #8 |
I realize I'm essentially talking to myself right now but in case anyone reads this, let me know if I've figured this out even a little. I read the other recent thread on Adobe RGB and began to wonder if sRGB is indicated when RGB is checked AND 8- bits in the Mode menu. I opened my photo in PS to see if I could figure out what everyone is talking about (everyone meaning the people on this thread as well as the two others I read). When I clicked on the Mode menu, what I just described was the case, i.e. RGB was checked and 8-bit. The original file opened in Photoshop in this mode. I had my camera set to Fine which makes a JPEG file. I only get a TIFF file when I have it set to Hi. Am I at least on the right track?
I actually haven't noticed the kind of significant color change that the people on the other threads were complaining of. That may be because I don't tend to pay attention to those details as closely as others do. I will compare my other portfolio images and see if I notice any major differences.
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05/08/2004 09:54:07 PM · #9 |
I guess I should point out at this late point in the conversation, that I'm working on a Mac. My laptop is also a Mac and when I figure out why I keep getting 'scratch disc is full' alerts even though I've added a brand-new external hard drive as a secondary scratch disc, I'll go back to using it for photo work.
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05/08/2004 10:20:08 PM · #10 |
On my monitor, the face looks over saturated on the left cheek (too stong of light) and red also. You might try a "Reveal" lightbulb or "Daylight" bulb that you can get at any hardware store, that should take care of your red problem, and you can defuse the light with a shower curtain or sheet.
A easy way to check your workspace color in PS, is go to View/Proof set up/monitor RGB, you should see pretty close to IE's color so you can adjust in PS. |
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05/08/2004 10:39:50 PM · #11 |
Yoiu definitely need to set up your preferences, one to change which disk you use as a scratch disk and how much and also for your color control. as caba said, the VIew->Proof SetUp->Monitor RGB will give you an almost match to IE (or other browsers) You need to use Safari by the way, if on Mac, traitor. (C:
Adjust your picture in the colorspace you want (adobe rgb or srgb, depending on who you talk to). When you have it looking like you want (save of course) and then go to the View/Proof setup/Monitor rgb and then adjust it to look like the original and save that as a web photo and not the original.
If you want to know about this stuff and do it right, you are going to have to read about it, without excuses. (sorry, the ER RN, take responsibilty for yourself and actions, in me) (C:
Message edited by author 2004-05-09 02:41:57.
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05/08/2004 10:44:22 PM · #12 |
Thanks for checking it out for me. I thought it looked reddish also. Thanks for the lighting tips also. I've been a mostly point-and-shoot photographer for so long. The main reason I joined this site was to force myself to plan things more.
I went back and re-read the other threads outloud to my husband and it clicked a little better. I also switched to my laptop, saved the uploaded version (I forgot to email myself the original) and looked at it in PS 7. It looked really bad (probably because I obtained the image from the web). Then I checked the Mode menu and noticed all the options (that aren't in the mode menu in PS 4 but are probably in preferences or something).
I looked at the image in IE on this computer and it looked less red to me. It's all very confusing. :D I do know now that the original file is an 8-bit JPEG so that is a starting place I guess. I should go to the bookstore first thing and buy a book on Photoshop.
It's very late and now I have to pay some attention to my husband. He was at a show tonight with some bandmates, checking out the competition, and while he was bopping around in the crowd he felt someone cupping his butt. He ignored it at first thinking it was one of his pals goofing around but when he turned around it turned out to be a beautiful blonde! LOL! He's turning 40 next month so that was a nice ego boost for him. |
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05/08/2004 10:50:10 PM · #13 |
Originally posted by dacrazyrn:
You need to use Safari by the way, if on Mac, traitor. (C:.......If you want to know about this stuff and do it right, you are going to have to read about it, without excuses. (sorry, the ER RN, take responsibilty for yourself and actions, in me) (C: |
Hee hee! I do have Safari but I like the Favorites bar in IE better. I'll switch back and forth occasionally. A lot of it does have to do with what I got used to with my other computer which is still running 8.6!
I was wondering if someone would give me a lecture on exuses. :D I don't mind. I did read the stuff again, only this time out loud to my husband (poor thing). Sometimes that helps. It takes longer for this stuff to sink in because I have to read it over and over. It takes lots of patience which I don't have. Of course, I should never try to read complicated stuff at night when my meds have worn off. I perform much better in the afternoon. Thanks for the scolding, I need it. :D
Night night! |
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05/08/2004 11:29:58 PM · #14 |
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05/09/2004 07:25:50 AM · #15 |
if you are on a Mac, the go to PhotoShop>Preferences>General> Color Picker
here you have the choice of Adobe or Apple. Choosing Adobe uses the color rendering profile as provided by Adobe and your image will only appear consitent when viewed in adobe applications. If you were planning on doing color separations for print you would want to stay in this profile. If you are outputting to the web, you will want to switch to Apple since this is the rendering profile that any web browser will use. I do not think it has anything to do with which browser you use.
Also, sRGB is a monitor setting that is intended to bring some consistency between cross platforms (Mac/windoze etc) it is somewhat of a standard and will likley help your images on the web look more consistent between Macs and PCs.
Your issue actually has nothing to do with color space. The color space is ALL RGB, as opposed to CMYK (for process offset printing), for instance. RGB is an additive color space - meaning that increasing the values goes to white, while CMYK is subtractive - menaing the decrease in values goes to white
hope this helps.
Message edited by author 2004-05-09 11:34:14. |
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05/09/2004 08:24:19 AM · #16 |
Hi,
Thanks for the info. I'm copying and pasting all these tips so I can read through them again later. Does anyone have a recommendation for a good book on Photoshop 7? Also, a good digital photography book would be pretty helfpul too. I got one out of the library the other day but it wasn't too great. I don't need a beginner photography book so much as a book that goes into more depth about the stuff we've been talking about.
Happy Mother's Day!
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05/09/2004 09:12:58 AM · #17 |
Some less technical tips...
Forget that your JPEG is 8-bit RGB. For this discussion, that's meaningless. The red in your image is a result of the white balance setting in your camera, not Photoshop. Try a different white balance setting or use full-spectrum (neodymium) light bulbs to eliminate unwanted color casts.
As for Photoshop color matching, look for Color Settings in the application menus. Use Web Graphics defaults for online images (like these) and U.S. Prepress Defaults for commercial offset print work (brochures, catalogs, etc.). The difference is that Web Graphics uses sRGB, a more limited palette of colors than U.S. Prepress, which uses Adobe RGB. The images that come from your camera are probably already in sRGB- they'll only change if your Photoshop Color settings are set to something other than sRGB and you 'convert colors' when opening the image in Photoshop.
To preview your image in Photoshop, go to the View menu and select Proof Setup> Windows RGB. That's how your image will appear to the bulk of this site's members. To export your final image, use Image Size to make your largest dimension 640 pixels, then choose Save for Web under the File menu and move the JPEG Quality slider until the image size is just below 150k.
To answer ChrisW123's question, the image may appear different with Save for Web than it did in Proof Setup because you're no longer previewing it in a different color space. If your Color Settings are on Web Graphics defaults, that should minimize the difference. Bear in mind that the same image will look lighter on a Mac than on Windows, and there's nothing you can do about it (I usually preview for Windows RGB and aim for a slightly darker image than intended so it's not too washed out on Mac monitors).
BTW Melissa- Anything Explorer can do, Safari can do better and faster. Some features are turned off in Preferences by default, though. If you dig deeper in Safari, I doubt that you'll ever touch Explorer again.
Message edited by author 2004-05-09 13:15:19. |
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05/13/2004 06:14:17 AM · #18 |
scalvert,
some nice pointers, however i would like to comment on a couple suggestions you made:
sRGB is a standard that minimizes the lightness/darkenss between Mac OS and Windows OS monitor presentation. I suggest any RGB settings, whether preview or general monitor settings be sRGB - this is the newest and most up to date method for cross-platform consistency.
U.S. Prepress Defaults is an old setting that has been superceeded by SWOP - any prepress department worth it's salt targets this profile for color separation.
However, keeping all of this in mind, I suggest anyone using Photoshop for both RGB as well as CMYK proofing/corrections use the Colorsync profile.
this can be accomplished by choosing Color Settings>Colorsync Workflow and then changing the CMYK setting to U.S. Web Coated (SWOP) V.2. This will afford the most consistent representation between RGB/cross-platform/CMYK. If you have advanced settings available (photoshop cs), I would also suggest choosing the Apple Colorsync rendering engine.
an important thing to keep in mind is that no matter what your settings are for CMYK, it is still being interpretted and presented by an RGB colorspace - thus you cannot count on the monitor for accuracy. the only way to accurately proof CMYK color separations is by using one of the many proofing systems and a "chromalin" output.
Message edited by author 2004-05-13 10:15:35. |
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