Now select the black eyedropper and click on an area that SHOULD be nearly totally black. Note that there are also gray and black eyedropper icons as well. With the white eyedropper hover over your image and look for an area that SHOULD be nearly totally white (if it didn't have a color cast), and click on the image with the eyedropper tool.Īfter clicking the image with the eyedropper, the photo and the histogram will change. In the Layers Menu, create a levels adjustment layer, which will make the Properties Menu pop open and then single-click on the white dropper tool in the Properties Menu. With your dropper sample set to larger than 1 pix average, open an image with a color cast that you want to fix the color balance. Change the settings to a larger sample, such as a 5 X 5 average pixel sample. The default setting is “Point Sample,” which only evaluates a 1 pixel square. When you single-click on one of the eyedroppers the upper menu bar is an adjuster for the Sample Size that Photoshop takes with the eyedropper. We “fix” the problem by showing Photoshop where these points of reference can be found in the photograph with these eye dropper tools.įirst, check your settings for the eyedropper tool in Photoshop. When there is a color cast in an image, it is as if the image is "confused" about what is supposed to be white, black and neutral gray. ![]() These three eyedropper icons are used to set white, gray and black points in an image. In earlier versions of Photoshop you will see them in the levels menu, such as in the old truck histogram shown above. In some versions of Photoshop you will find them in the Properties Tab that automatically opens when a levels, curves or exposure adjustment layer is made. Notice the three eyedropper icons (shown left). To properly removing a color cast in a photo we must correct the White Balance of the image. Removing a Color Cast by Correcting White Balance This helps to correct a poorly exposed image. To correct the problem, simply slide the left tab to the right, stopping just into the beginning of the histograms curve. In the histogram of the old Polaroid truck above you will note that there is a fairly large gap to the left side of the histogram's shape (the shadows portion). If either the left or right side of the shape has an area where there is no area in the graph at all, there are issues with the image's exposure that need to be corrected. These triangular tabs are used to adjust the Shadows, Midtones, and Highlights of an image. Note in the histogram graph below there are three triangular-shaped controls that can be adjusted. ![]() At other times it may appear to do nothing at all, but its always worth a try.īefore editing an image, it's a good practice to inspect the image's histogram first. Sometimes this simple one-click method works reasonably well to improve the color balance in the image and reduce or remove a color cast in the photo. ![]() The first method of correcting the White Balance in an image is by simply clicking the “Auto” button in properties menu. ![]() The histogram represents the exposure of the image. In the middle you will see a graph in the middle of the Properties menu that resembles hills and valleys, know as the photo's Histogram. Once you create the new Levels Adjustment Layer, the Properties Pallet will automatically open. Click on the icon "Create new fill or adjustment layer" or from the main menu, select: LAYER > NEW ADJUSTMENT LAYER > LEVELS Removing a Color Cast with the AUTO Balance Button You can always revisit an adjustment layer and make additional changes, or delete it entirely and you are back to the original look of the image.ġ. Thus, there is no need to make a copy of the original image first. the original image is intact and unchanged. The great advantage of using an adjustment layer is that they are completely non-destructive, i.e. Four Methods - Depending on How Perfect You Need It to Be! Auto Balance Method White Balance Correction Thresholds Method Neutral gray and the gray EyedropperĮach of the Photoshop techniques we will discuss first begins by creating an “adjustment layer” (found in the layers pallet).
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