Thin thins the raster image.
Thin the whole image
Raster Effects Menu > Thin > Ortho thins the raster image with a bias towards retaining orthogonal lines:
Select Raster Effects Menu > Thin > Standard or Raster Effects Menu > Thin > Ortho.
The number of thinnings is the number of times Scan2CAD goes through the image stripping a layer of pixels off it. The larger the number you choose, the more thinned the image will be although it will never be thinned right away – Scan2CAD will always retain an image one pixel thick.
As you move the slider you will see the raster image in the Preview Window getting thinner and thicker.
Adjust the number of thinnings if necessary.
Click to undo.
Thin part of the image
If you only want to thin part of the image, choose the part you want to thin by windowing it or zooming into it, then follow the steps above. In Step 5, ensure the Apply changes to Full Image option is not selected.
Special note for color images
If you are working with a color raster image you can modify the way that Thin works by selecting a Pick Color.
If no Pick Color is selected Scan2CAD thins entities of any color that are on a white background.
If a Pick Color is selected Scan2CAD thins Pick Colored entities only, regardless of the background color they are on.
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