Start by opening some images you want to convert into same color tone. We want to change color tone of images based on the color tone of car image.
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Select the image you want to change color tone. We've selected the first one. From image menu select Adjustment>>Match Color.
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Select the source image in source menu. Select the target image in layer menu.
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Similarly select the other images and define the source and target image files. You can adjust the luminance, fade and color intensity according to your requirement.
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Below is the result of using match color. All images now belong to the same set of color tones.
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