Color correcting photos, this isn't making sense.

I have tried endlessly with color correcting photos. What am I looking for when I'm placing my color sample? For example, I open up a photo. I look around, choose a grey area, at 3x3 or 5x5 average sample. I shift click my eyedropper there. I open up curves, choose the red channel, make the output values the same as green. I do the same with blue, yet my photo does NOT look color corrected. If I open up a photo with too much green or blue, how are people restoring them to regular color? Any help is appreciated, thanks.

In the Curves dialog or panel, click on each of the white, gray, and black eyedroppers (to the right is the PS4 panel version), one at a time, and after clicking on an eyedropper, click on an appropriate white, gray, or black point in the image. Then you can modify the curves as needed.

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Where Would You Color-Correct in This Workflow?

I shot talent in front of a green screen. I am putting the pre-liminary edit together in FCP. From there, I'll use Automatic Duck to move the project to After Effects. There, I'll use Keylight to remove the greenscreen using Keylight. Then I want to insert a solid orange background and eventually return to FCP. Given gamma issues going back and forth with FCP/AE and the potential for an alpha channel I'm curious where one should color correct the talent.

why not shoot the talent against orange and save yourself a lot of work?
There's a lot to be said about practicals, but it takes a lot of lighting if you want an "electronically flat" background. Even the lens will be working against you. White is particularly difficult.
But if you still wanted to engineer the shot as a matte-screen, why not use the target bg colour as the matte colour? Because of how cameras and codecs work. Its a fundamental issue.
Usually there's a primary sensor which is producing a tristimulus representation of the scene. Then those values are perverted and compromised in ways that allow it to be stored in an economically feasible way. If only there was a way of recording the original sensor values that didn't require a skyscraper full of recording medium! I'm thinking specifically about the so-called "4K" RED and what you would actually need to store an RGB motion picture file of about 45.59 MegaBytes per frame. And even then there would be issues with the de-Bayering.
Until further notice, orange is a combination of all three values of red, blue and green. Mattes work better with a single primary like blue or green. Red is out for obvious reasons (flesh tone), and blue is usually regarded as too low-luminance and noisy to be useful. Green it is.
Green is also the major Luminance contribution (about 60%) to the Y signal in YCbCr, so its a better choice. Its a trade-off that will require de-coding and spill control, but this is our reality.
So, shooting it as intentioned -- maybe. You would still need a fair amount of time and effort to do it right -- spill, flare, evenness, footprints on the set, cyclorama blending... let me count the ways...
jPo
Message was edited by: JP Owens

How to color correct photos for iPhone 5C

Hello! I am doing my high school physics project. I took pictures of LED lights and I need to find the wavelength of the emitted colors. My teacher said that photos taken by cameras have slightly different colors than the actual color. How would I manage this source of error? I need the color to be as accurate as possible.

Templeton Peck wrote:
DuckDuckCube wrote:
need the color to be as accurate as possible.
Then use a real digital camera.
Using what I have...

Do I color correct angles before making multiclip?

Hi guys,
I have two individual angles I'm going to sync and make a multiclip out of. One of my clips is horribly bright and requires some serious fixing in Color.
Do I color correct or add filters to the individual angles BEFORE making the two angles into one multiclip? Or is there some way to color correct the entire angle after making it into a multiclip?
--also, any reason why my canvas when changing angles in a multiclip would show it in 4:3 while the actual video is 16:9 in both the viewer and timeline?
Thanks

You could color correct before if you like, if your angle is rock solid and the changes will be consistent throughout. I don't do it that way but have been tempted.
If you do it after finishing the multiclip edit then you will need to copy one color corrected clip and then paste attributes to the other appropriate clips.
As a rule I color correct when my edit is finished.

Snow Leopard's Default Gamma & Color Correcting for Pre Press in Photoshop CS4

After searching the forums I thought I would start my own thread on this subject.
I have Photoshop CS4 and InDesign CS4 and I have continued to color correct, for pre press, in OS 10.4.11 Tiger with the 1.8 Default Gamma and 6500 color tempurature, using Apple's display calibration tools in the OS's System Preferances.
I want to switch to Snow Leaopard but with it's Defualt Gamma of 2.2, I'm not able to make my minitor manually adjust to the needed range for brightness and contrast that is needed to begin the calibration process. Is there a way to color correct photos, for pre pre press, in Photoshop with a 2.2 Gamma setting in my display preferances?

I have had success just with Apple's System Preferences for color calibration. I do design and pre press for a number of customers of the various printers I work with. Most of the photos I work with are from digital cameras and are provided by the customer. The only point in the whole process, where the photos get adjusted to have eye pleasing color, when coming off the printing press, is when I work with them.
The printers I work with continue to send their customers to me, for design and pre press, because they like my color work on the photos. I send the pre press files as Press Optimized PDFs to the printer's FTP server and the printer does all the direct to plate separations in-house. I want to continue to be reliable in that area and so the brighter default Gamma built into Snow Leopard seems to complicate things if I ever want to move up from Tiger to Snow Leopard.
I have two 17" Apple CRT displays that cannot adjust into calibration range when I'm booted in Snow Leopard. These CRT displays can only manually adjust in range for calibration under Tiger or Leopard. It sounds like if I purchase an IPS based LCD monitor, made by Apple, Dell, or other brands, I will probably be able to manually adjust the display for Gamma 1.8, under Snow Leopard.
I was posing this question about using Gamma 2.2 because if I could color correct for pre press with the 2.2 setting, I could continue to use my old Apple 17" CRT displays and also any web content I create will preview closer in color, on PCs as they will on my Mac. Maybe my review PDFs will view with similar color on my customers PCs if I work with a 2.2 Gamma setting and instead of 1.8. For now I know I will keep my printers happy if I continue to work with a monitor that has a 1.8 Gamma setting and a 6500 color temperature setting. If that must continue to be the standard for pre press, then I will need to get an IPS based LCD monitor that will allow me to adjust in the 1.8 Gamma range while booted in Snow Leopard.

Color Correction - FCE has me feeling blue

I have a clip a few seconds long, shot indoors and lit by a halogen lamp. I know, I know, but's that what I did. It has a strong overall blueish cast which looks very cold.
Is there a simple way using Color Correction to warm and correct the colors? The Color Correction literature is copious and daunting and I don't really want to spend the time to learn all about Color Correction at this time. I need a quick fix so that I can finish my movie. ( A vast and impatient public is holding its breath.) A suggestion really would be appreciated.
If I make it yellower, won't that give me an overall green tint? Red, a purple haze?

If you're interested, Izzy has a free tutorial that as I recall covers the subject of making video feel colder (or in your case) warmer by using the Color Corrector filter. The tutorial video is under chapter 3 on this page:
http://www.izzyvideo.com/learn-final-cut-express/
If you don't want to watch a slightly longer tutorial though, Tom's tip should do the trick.

Color Correction for Web

This is sort of a generic post questions. I am working on a project for the web. My final output will be to Digibeta. How do others approached color correcting in this situation? Being the computer monitors generally have such different characteristics than a traditional TV. In the past I correct as if I was going to air but this sometimes makes the online videos over saturated and contrasty. I realize there is really no web standard yet but wonder if anyone out there does a lot of web stuff that has any tips.

sRGB is the recommended color space for internet application.< </div>
You'd need to provide some documentation to support that statement.
sRGB is not necessarily meaningful beyond photographic applications. sRGB was designed to roughly reproduce color regardless of local profiling. The sRGB standard was created in 1996 to, among other things, create a smaller number of colors to increase the likelihood of correct reproduction in printing photographs, The mere presence of Microsoft on the list of supporting companies is reason enough to be skeptical.
http://www.computerworld.com/action/article.do?command=viewArticleBasic&articleI d=67719
When an RGB image from a high-end scanner or other device is imported into an SRGB environment, however, some color information is lost. What SRGB offers is a lowest-common-denominator view of images in business applications and on Web sites.< </div>
This from the wiki:
As the recommended color space for the Internet, sRGB should be used for editing and saving all images intended for publication to the WWW. Images intended for professional printing via a fully color-managed workflow, e.g., prepress output sometimes use another color space such as Adobe RGB (1998), which allows for a wider gamut.
Images intended for the Internet and created in one of the other color spaces may be converted to sRGB when editing, using a suitable editing program, e.g., Paint Shop Pro or Adobe Photoshop; ideally, the original non-sRGB file should be saved and the conversion to sRGB done on a copy, as some loss of image information occurs when converting to another color space.
Due to the standardization of sRGB on the Internet, on computers, and on printers, many low- to medium-end consumer digital cameras and scanners use sRGB as the default (or only available) working color space. Used in conjunction with an inkjet printer, an sRGB image produces what is often regarded as satisfactory for home use. However, consumer-level camera LCDs are typically uncalibrated, meaning that even though the image is being labelled as sRGB, one can't conclude that the image is color-accurate on the LCD.
The two dominant programming interfaces for 3D graphics, OpenGL and Direct3D, have both incorporated sRGB. OpenGL 2.1 incorporates sRGB textures first introduced by the EXTtexturesRGB extension. OpenGL's EXTframebuffersRGB extensionsupports rendering into framebuffers assuming either a linear or sRGB color space. DirectX 9 supports sRGB textures and rendering into sRGB surfaces using Direct3D.<
bogiesan

Color Correction Effect: "Change color to" change more that one color in the same clip(pp Cs4)

Hi all, I have watched and tried some tutorial to achieve this. My question though is how to change more than one color in the same clip. I'm asking because when I tried I had no problem to "color pick" one shade of my (Rock face) and turned it into a natural color picked from a good clip. But I was left with all the other shades to work on and if I repeated the procedure (pick the next destination color to replace) it cancelled my previous change so it seems that I can change only one color... I must be doing something wrong.

Wow! I did play a few other Youtube 3 color correction, but this one is so good and comprehensive. I did also like RGB curves tutorial. I don't know if all this is appropriate for my 1983 VHS clip nearly all green (I probably had the wrong white balance). What I achieved so far is not very good but I think much more watchable than all green! Than You again for this . I do also realise these guys are expert and still they have to use lot trials and errors and various techniques before getting what they want. I do appreciate their generosity to make some of their knowledge available to all of us.

Color correction for photo taken under abnormal lighting

I have a "problem image." It's a photo of an important man making a speech in the city where I live. It was an outdoor ceremony under a tent made of partly transparent white and red strips. It cast a slightly pinkish color on him. I tried a simple color correction, but pushing the control all the way toward cyan had no effect. Is there a method to handle this?

That photo is hugely oversaturated, with a small shift to magenta. Use Image - Adjust - Hue/Saturation, then maybe bump up the contrast with Curves or Brightness/Contrast.
Finally, you might want to brush lightly over his face with the Dodge tool set to Midtones and Protect Tones to bring some fill light in.
-Noel

? about image resolution/color correction when apple prints photo book

My first time making a photo book. I color correct and sharpen all of my images in Adobe Lightroom 2 first. Then I save the jpegs and import into iPhoto to make a book. Is there an option for turning off auto color correction when the file is uploaded to apple for printing? Is there an accurate way to tell how the photos will print on the specific paper they use? Also, what print resolution should the photos be set to? Is 180 dpi enough? Thanks in advance.

first read the Apple pages - http://www.apple.com/support/photoservices/preparation_tips/ - and all of its links
Second - I suspect you will be disappointed. Based on reports on these forums almost everyone who uses iPhoto exclusively to preprocess photos is extremely happy with the results. very often people you over process their photos using a third party program (including Lightroom, Photoshop, etc) are unhappy because the printing process is optimized for point and shoot cameras and iPhoto processing - it is NOT a professional desktop book process
There are no options re color correction - it is built in again aimed at sRGB, point and shoot cameras and iPhoto processing
Plus there have been reported incompatibilities between iPhoto and Lightroom
The print resolution is what it is - if it will be less than 180 dpi you will get a waarning - it can be greater
The papers they print on are specified here - http://support.apple.com/kb/HT3412
LN

HT201303 An unknown error has occurred when trying to sign in , and I know I putting in the correct info, this stinks can anyone help? Because apple isn't...

An unknown error has occurred when trying to sign in , and I know I putting in the correct info, this stinks can anyone help? Because apple isn't...

urgh... just noticed my previous post said i have mountain lion... i meant that i have snow leopard. no idea why i messed that up!
anyway, i just tried reinstalling snow leopard from the usb key that came with the computer. Then, I installed software updates until it told me there were no more updates. After that, I tried the app store again, and it still is giving me the unknown error. really irked by that. may have to take it back to the apple store yet again, to see if i can figure out why the app store won't work.

Color Correcting In CC - Making Whites Actually White

Okay so my main question is,
Are there any functions or plugins where I can look at the clip, and then click on a spot that I know should be white (But its not because the camera wasn't white balanced 100%), and have After effects automatically adjust so it is white.
Kind of like how you set white balance on a camera, where you hold up a white card or other completely white object, click the white balance, and the camera automatically adjust to make it white.
Except I want to be able to just click on a point in the footage and have it adjust everything.
If this is not an option, then are there any good tips for white balancing the footage?
IE: I film a subject against a white wall, the camera wasn't white balanced so the background appears to be light beige. I want to click the background in AE and have it color correct and make it white.
Thanks

Finding perfect white is always a challenge and it may foul up other things in your shot because white walls are reflective and if someone is wearing a blue shirt against a white wall, white may not be white. Setting white may get you in the ball park, but it is usually only the first step in color grading. You usually want to push highlights to one hue and shadows to another.
The procedure and the tools used to color grade a shot depend entirely on the shot. For most of my work Colorists II is my preferred tool. Some shots require more than one instance of colorist to get to where I want to go. Color finesse is also good, but for some work, and this depends entirely on the shot, Auto Color is all that I need. No matter what technique you use to grade your shots you need some kind of scope or histogram that you understand so you can know where you are pushing the levels in the shot. I'm always checking areas of a shot with the Info Panel to make sure I know what I've done to the color values. Most of all, good color grading takes time to learn and a very thorough knowledge of color.

Color correcting FOOD photos

I need to color correct gourmet food photos for large format printing on a company truck. Any tips or suggestions on books or links to guide me. Thanks.

Professional Photoshop by Dan Margulis:
http://tinyurl.com/49fvm8
Also his book about Photoshop Lab:
http://tinyurl.com/53rlp8
For large format printing you'll need
some recommendations about resolution etc..
Best regards --Gernot Hoffmann

Printer Requested Exporting Document in CMYK, with one other color so he could color correct to his printers. How do I do this?

I have a client that was originally going with a metallic Pantone color and last minute decided to change their mind to cut costs. So after talking to the printer (because the conversion color is way off) he requested that I export the document in 5 color processing. He wants CMYK + the color that would originally have been the metallic pantone so he can go in and grab that one color and color correct as needed on his printer. Can someone please let me know how I export CMYK + one color which will also be in CMYK.
Thanks!

Incase anyone comes across this same issue, you can create a new swatch as a "Spot Color" even though it is CMYK and it will export as CMYK + 1 other color. Hope this helps anyone else who comes across it.

How to delete assets in MUSE especially photos in slideshow - keeps making a copy on preview this

How to delete assets in MUSE especially photos in slideshow - keeps making a copy onevery preview this is so wrong - really worried this profgram sucks

thumbnails can be deleted in the MUSE S/Show window - this seems to delete all instances of photo in the slideshow. However the slideshow widget needs improvment keep submitting to Adobe request for features and included a pause button!!
The Layers Tab did not work for me?

Color correcting photos, this isn't making sense.

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