Deskew

The Deskew image enhancement automatically straightens crooked images, which will help improve the results of OCR and other processes. It is meant to compensate for images that have been scanned at an angle.

To use Deskew

1. In the Session Configuration Pane, select the stage of processing where you want to use Deskew.
2. In the Tasks Pane, select Deskew. In the bottom right of the Tasks Pane, you can select Wizard to display more information about each property or Skip Wizard to display the properties all at once without additional information.
3. Page Range: When configuring an image enhancement in Page Processing or Storage Processing, you will be prompted to specify a page range. In other stages, default settings will automatically be applied.
4. Skew Detection: Specify a method to determine how skewed an image is.

• Lines: Estimates using the degree by which lines run parallel to the corresponding image border.

1. Angle: Estimates using the foreground (everything black on the black and white image, including lines, text, and pictures). Can be optimized for speed or accuracy.
2. Text: Estimates using text. Text must run left to right.

5. Click Finish.
6. Optional: To preview how this enhancement will affect scanned images and OCRed or extracted text, test processes. For the best results, add a custom sample image before testing. Adjust and test until you are satisfied with the results.

Note: Because Deskew determines the orientation of the image by the arrangement of black pixels, it only works on black and white images. To convert a color image to black and white, use the Color Removal enhancement.

Note: Using Deskew may change an image's width and height. If so, the image will be resized to preserve all data.