In contrast, SilverFast USM carefully raises the contrast at edges and lines without loosing any details. The image begins to appear very bumpy and unnatural.
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If you are not yet satisfied with the sharpening effect, you can also make manual adjustments for fine tuning.Ĭonventional sharpening functions often increase the detail contrast in general and therefore also strengthen any image interference of the original. In most cases the sharpness impression will now be considered as sufficiently optimized. This procedure applies a basic sharpness to your images. Now open the USM tool dialog and our new Auto Sharpness feature will automatically select sharpness parameters, which have been adjusted to your specific scanner and scan resolution by our SilverFast experts. Sharpening made easy with the new SilverFast: Initially and before you start sharpening, set your desired resolution. Varying scan resolutions require individual sharpening parameters.
In order to sharpen an image correctly, the resolution which will be used has to be taken into account. SilverFast now including new Auto Sharpness Presets This principle of Unsharp Masking can be transferred to the digital treatment of images.
Sharpened pictures appear more detailed, since the human perception is aligned to the recognition of edges and lines.
Sharpness impression is increased by contrast rise of small brightness changes. The Unsharp Masking technique (USM) originates from traditional lithography.
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