Why does the final result of ContrastMaster sometimes look a bit different from the preview?
The preview of ContrastMaster may not display the final result 100% accurately sometimes. That is usually the case with larger images and smaller Radius values. That is because the preview usually only contains 0.2 to 0.5 Megapixel of image data whereas the full image is 10 Megapixel image large. As ContrastMaster works on small image details, the small preview image may not contain enough image details to represent the full image perfectly. The same problem occurs even graver for all sharpen and noise/grain filters, which work on an even smaller detail level. For these filters you usually switch to a 100% preview zoom and scroll around to view the effect accurately. You can do the same with ContrastMaster. Additionally you can improve the preview accuracy by enlarging the ContrastMaster window and thus the preview. On the other hand the final result often looks even better than the preview, so it may also mean a positive surprise rather than a problem.
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