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Review the scanning techniques graphics professionals and photographers use, while delving into workflow considerations and the advanced image-quality controls available in most scanning software. Author Taz Tally explains the core concepts, such as how resolution and interpolation affect scans; introduces the industry-standard SilverFast scanning software; and shares the settings to achieve the best results from a scan. The course also covers keeping your scanner and its parts clean and free of dust, and includes a variety of start-to-finish scanning tasks.
Here I'd like to show you how to create an HDR or High Dynamic Range scan. This is probably the simplest of all scans, because the intention of creating a High Dynamic Range scan is to just capture as much data as you can and offload the editing of that data to another application, be it Photoshop or Lightroom or the HDR program that LaserSoft makes. Basically all that you need to do, in fact, the only thing that's active in this dialog box, if you go to HDR Scan, is to set up your Frame here, set up any Scaling that you might want to do, and here we'll just take this image at 100%, 8x9 frame, 240 pixels per inch, for a resolution for printing on a high quality inkjet printer.
And then normally we would set our Scan Type at 48-24 bit or 48 bit color. What we'd do here is 48 bit HDR, or High Dynamic Range color. And notice what happens to all the tools when we select that. All the tools up here just go away, you have no way of actually editing your image. All you can edit is down here with the Scale and the Output and the Resolution, and we'll just do it at 100%, and that's all you need to do. And then you are not adjusting any Highlights or Shadows or Brightness or Contrast, you are just trying to collect all the data that's there, so the scanner will capture as much as it possibly can and then deliver that to your file.
Then all you need to do is click Scan. And if I create HDR files like this one, I'll always label them somehow as an HDR file like this. I use my standard editing scheme such as Tina_KBay_RGB and then hyphen HDR to let me know that this is an HDR scan and then at what resolution I created this image. Of course I save this as a TIFF, and then the scanner just captures all the data that's there, and makes no attempt to adjust it whatsoever, and just delivers it to the file.
And as far as your workflow is concerned, you intend to open that up in another application to edit it.
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