![]() The contrast curve affects not only the appearance of contrast but also, indirectly, the colour saturation. ![]() This can create quite a noticeable difference between the in-camera JPEG and an equivalent RAW viewed in an image editor. Some cameras store the camera's contrast setting in the RAW file and some RAW editors can use this otherwise RAW editors will use an in-built contrast curve. This correction is not a straight gamma correction a contrast curve is applied to ensure that highlights and blacks curve off nicely. Gamma correction is applied which converts from the linear values to gamma corrected values as required by digital image files. If there is any difference in appearance, it is only due to differences in the following (in very rough order from most to least important). When viewing a RAW image in an image editing program, that program has to go through exactly the same steps as the camera did. A JPEG from a camera is simply a RAW image that has had some additional processing applied.
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