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Old 02-28-2018, 04:58 PM   #2
KevinM
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Join Date: Jan 2008
Location: Massachusetts
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Most often, when you see a rejection like that, it is because the color balance (often called "white balance") is significantly off (from reality), or because the image has an overall color cast (a bluish, yellowish, greenish, etc). There are a variety of ways in which this can happen, ranging from having the wrong color temperature set in your camera, to some post-processing step. Even the "AUTO" white balance setting in your camera can sometimes get it wrong.

A few suggestions:
  1. If you are shooting raw, there are settings in Adobe Camera Raw (ACR) that will allow you to adjust the color temperature and tint. If the image is too blue, you can raise the color temperature and if it is too yellow or warm-looking, you can lower it. If the image looks reddish you can bring down the TINT slider. If it looks too green, you can bring it up. Adjusting these things manually does require a little experience.
  2. An easier way to make an adjustment is to look for the "Remove Color Cast" feature in PhotoShop or PhotoShop Elements. That's an eyedropper tool that you can touch to some element in the image that should be black, white or gray. It's an automatic adjustment, so you cannot fine-tune it, but you can undo it if it does not look right to you. You can also try picking a different color target (black, white, gray) and see if it gives you better results.
  3. A third possibility is to use the "Auto Color Correction" option. Again, this is an automatic adjustment and you cannot fine-tune. I don't recommend this option, because when I try it, I generally don't like the results. Be careful with "Auto" adjustment options, because they can actually CAUSE color casts. In PSE, for example, I find that Auto-Levels and Auto-Smart-Fix tend to turn images too green. I don't like or use these options very often.

On most images, you can find something black, white or gray to help you make adjustments, but that's not always the case. There are some images which are indeed difficult to correct, and as noted, experience really helps.

Just make sure that the White Balance on your camera is not set to some wacky value. That will definitely cause your pictures to have color casts. Fortunately, if you are shooting, raw, it is correctable. If you shoot only JPEGs, having the White Balance set incorrectly will make your image very difficult to correct.
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