Correcting a Book Distortion

For a scanned image that has been saved as a double-page spread such as a scanned image of a book or magazine, including work data required for correction in book image correction mode, you can correct the distortion of the scanned image.

The scanned image is corrected right after the document is scanned or after the scanned image is imported into ScanSnap Home.

Overview
ATTENTION
  • To correct a distortion, the shape of the book needs to be detected.

    When you scan a book, the shape of the book may not be detected in the following cases.

    • When a book to be scanned is held down outside of the appropriate areas (Figure 1)

    • When a book is scanned without the Background Pad (Figure 2)

    • When a book to be scanned is spread open and is placed face-down (Figure 3)

    • When a book to be scanned is placed in a vertical orientation (Figure 4)

    • When a book that is not rectangular or square is scanned (Figure 5)

    • When a book that has a background color other than white (such as a comic magazine) is scanned (Figure 6)

    • When a book that has a narrow margin space (such as a catalog or a magazine) is scanned (Figure 7)

    • When a book that is smaller than A5 size (148 × 210 mm/5.83 × 8.27 in.) in a double-page spread is scanned (Figure 8)

    Examples of When the Shape of a Book Cannot Be Detected Correctly

Windows

ATTENTION
  • If you correct an image in book image correction mode after editing it in point retouch mode, the corrections in point retouch mode are overridden.

    Follow the procedure below to perform multiple book image corrections for one page.

    1. Edit in book image correction mode (Book Image Correction Mode).

      • Correcting a distorted book image

      • Splitting a double-page spread image

    2. Edit in point retouch mode (Point Retouch Mode).

      Filling in the captured fingers in image

  1. Display the [ScanSnap Home - Book Image Viewer] window of ScanSnap Home.
    • When correcting a scanned image right after a document is scanned

      1. Scan a document.

        For details about how to scan a document, refer to Scanning a Document.

      2. In the [ScanSnap Home - Image scanning and file saving] window of ScanSnap Home, select [Correct and save double-page spread document images (book/magazine)], and then click the [Check/Correct] button to display the [ScanSnap Home - Book Image Viewer] window.

    • When correcting a scanned image that is managed in ScanSnap Home

      1. Display the Main Window of ScanSnap Home.

        For details, refer to To Display the Main Window.

      2. In the Content Data Record List View, select a content data record that has a distorted image that you want to correct.

      3. Select [Open with ScanSnap Home Viewer] in the menu that appears when you right-click the content data record to display the Viewer Window (Windows).

      4. Click Correct on the [Correct] tab to display the [ScanSnap Home - Book Image Viewer] window.

        If work data that is required for correction is not attached to a scanned image, filling in captured fingers in the image with point retouch mode is the only operation available.

        HINT
        • If [PC (Scan to file)] is selected for [Type] in [Managing options] in the settings for a profile that is used for scanning a document, the scanned image cannot be corrected.

          To modify the settings for a profile that you use when scanning a document, refer to Modifying the Settings for a Profile.

  2. Select a scanned image that has a distortion that you want to correct in [Final image].
  3. Click Book Image Correction Mode and then click Book Image Correction Mode to detect the shape of a book automatically.
  4. Drag the corner points that indicate the corners of the book and both ends of the gutter to move the points to any location.

    On the front and back cover of the book, make the middle outline for the gutter parallel to the right and left outlines.

    If the outline of the book is not aligned with the actual shape of the book, drag the top and bottom outlines to correct the alignment.

    Book Distortion Correction Mode
    HINT
    • If the shape of the book was not detected, the corner points and the outline are displayed on the entire window.

      Align the corner points and the outline with the shape of the book.

      Book Distortion Correction Mode

      To modify the corner points and the outline, follow the procedure below:

      1. Modify the corner points.

        The corner points can be modified by either of the following:

        • Put the cursor on the place where you want to move the corner points, and double-click the mouse.

          The corner points automatically move to that location where you put the cursor.

          If you are finding it difficult, drag the corner points instead.

        • Drag the corner points to the any location.

          To modify the corner points, follow the procedure below:

          • Both ends of the gutter

          • The corners of a book

      2. Modify the outline.

        Drag the outline to align it with the shape of the book. If you are finding it difficult to align the outline with the shape of the book, adjust the outline little by little.

        Click an outline near the corner points, and drag and drop the outline to align it with the shape of the book repeatedly.

  5. Click the [Apply] button.
  6. Click the [Selected Pages] button in the confirmation message window for the intended correction.

    To correct another distorted page, select a scanned image in [Final image], and repeat steps 2 to 6.

    HINT
    • When the text, lines, or graphics in the scanned image are horizontally skewed, clear the [Correct skewed text] check box in the [Feed option] Window.

      If there are curved lines, curved figures, or slanted lines on a document, the scanned image of the document may not be corrected properly and the layout may not look right.

  7. Save the scanned image that you corrected.
    • When you corrected a scanned image right after a document was scanned

      Click the [Save and Exit] button.

    • When you corrected a scanned image that is managed in ScanSnap Home

      1. Click the [Finish Editing] button.

      2. Click the [File] tab in the viewer window and select [Save] or [Save as] from the file menu.

    HINT
    • When you select the [Finalize] checkbox in the window that appears for saving images and then save the image, work data is deleted. Deleting work data from a scanned image allows you to edit the image but does not allow you to correct the image.

      An image can be corrected as long as work data is not deleted.

The distorted book image is corrected and the image is saved.

Mac OS

ATTENTION
  • If you correct an image in book image correction mode after editing it in point retouch mode, the corrections in point retouch mode are overridden.

    Follow the procedure below to perform multiple book image corrections for one page.

    1. Edit in book image correction mode (Book Image Correction Mode).

      • Correcting a distorted book image

      • Splitting a double-page spread image

    2. Edit in point retouch mode (Point Retouch Mode).

      Filling in the captured fingers in image

  1. Display the [ScanSnap Home - Book Image Viewer] window of ScanSnap Home.
    • When correcting a scanned image right after a document is scanned

      1. Scan a document.

        For details about how to scan a document, refer to Scanning a Document.

      2. In the [ScanSnap Home - Image scanning and file saving] window of ScanSnap Home, select [Double-page spread (Book/Magazine)], and then click the [Check/Correct] button to display the [ScanSnap Home - Book Image Viewer] window.

    • When correcting a scanned image that is managed in ScanSnap Home

      1. Display the Main Window of ScanSnap Home.

        Click the [ScanSnap Home] icon ScanSnap Home Icon in the application list that appears when you click Launchpad in the Dock.

      2. In the Content Data Record List View, select a content data record that has a distorted image that you want to correct.

      3. Select [Tools] [Correct] in the menu that appears when you click a content data record while holding down the [control] key on the keyboard to display the [ScanSnap Home - Book Image Viewer] window.

        If work data that is required for correction is not attached to a scanned image, filling in captured fingers in the image with point retouch mode is the only operation available.

        HINT
        • If [Mac (Scan to file)] is selected for [Type] in [Managing options] in the settings for a profile that is used for scanning a document, the scanned image cannot be corrected.

          To modify the settings for a profile that you use when scanning a document, refer to Modifying the Settings for a Profile.

  2. Select a scanned image that has a distortion that you want to correct in the list of scanned images.
  3. Click Book Image Correction Mode and then click Book Image Correction Mode to detect the shape of a book automatically.
  4. Drag the corner points that indicate the corners of the book and both ends of the gutter to move the points to any location.

    On the front and back cover of the book, make the middle outline for the gutter parallel to the right and left outlines.

    If the outline of the book is not aligned with the actual shape of the book, drag the top and bottom outlines to correct the alignment.

    Book Distortion Correction Mode
    HINT
    • If the shape of the book was not detected, the corner points and the outline are displayed on the entire window.

      Align the corner points and the outline with the shape of the book.

      Book Distortion Correction Mode

      To modify the corner points and the outline, follow the procedure below:

      1. Modify the corner points.

        The corner points can be modified by either of the following:

        • Put the cursor on the place where you want to move the corner points, and double-click the mouse.

          The corner points automatically move to that location where you put the cursor.

          If you are finding it difficult, drag the corner points instead.

        • Drag the corner points to the any location.

          To modify the corner points, follow the procedure below:

          • Both ends of the gutter

          • The corners of a book

      2. Modify the outline.

        Drag the outline to align it with the shape of the book. If you are finding it difficult to align the outline with the shape of the book, adjust the outline little by little.

        Click an outline near the corner points, and drag and drop the outline to align it with the shape of the book repeatedly.

  5. Click the [Apply] button.
  6. Click the [Selected Pages] button in the confirmation message window for the intended correction.

    To correct another distorted page, select an image in the list of scanned images, and repeat steps 2 to 6.

    HINT
    • When the text, lines, or graphics in the scanned image are horizontally skewed, clear the [Correct skewed text] check box in the [Feed option] Window.

      If there are curved lines, curved figures, or slanted lines on a document, the scanned image of the document may not be corrected properly and the layout may not look right.

  7. Click the [Save and Exit] button.
    HINT
    • An image can be corrected as long as work data is not deleted.

The distorted book image is corrected and the image is saved.