ABBYY FineReader 10 User's Guide

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ABBYY FineReader 10 User’s Guide If only a part of the image is blurry, try setting a higher aperture value. Shoot from a greater distance at maximum optical zoom. Focus on a point anywhere between the center and the border of the image. When shooting in automatic mode in poor lighting, the camera will set slower shutter speeds, which adversely affects image sharpness. In this case, try the following: ● Enable the anti–shake system, if available. ● Use the self–timer. This will help prevent the shaking that often happens when the shutter button is pressed. Shake–related issues may occur even when shooting from a tripod. The flash causes a large highlight area in the middle of the frame. Turn off the flash. Or try using other light sources and shoot from a greater distance. Automatic Image Preprocessing OCR quality may be affected by distorted text lines, document skew, noise, and other defects commonly found on scanned images and digital photos. ABBYY FineReader offers an image preprocessing feature to deal with image defects of this kind. When activated, the image preprocessing feature automatically decides what action to take depending on the input image type and applies the correction. Adjustments include removing noise from digital photos, deskewing, straightening text lines, and correcting trapezium distortions. Note. These operations can be very time consuming. To activate automatic preprocessing when images are scanned and opened: 1. Open the Options dialog box (Tools>Options…). 2. Make sure to check the Enable image preprocessing option on the Scan/Open tab in the Image Processing group. Important! The automatic preprocessing option may also be toggled in the image opening dialog box (File menu>Open PDF File/Image…) and in the ABBYY FineReader scanning dialog box. For more information, see Selecting the Scanning Interface. Note. If the Enable image preprocessing option was turned off while scanning or opening images, the image can be processed manually using the Edit Image dialog box. Editing Images Manually ABBYY FineReader 10 offers automatic image preprocessing, which means that the program decides if any correction is needed and applies it to the image. However, some images may require manual editing. For example, when only a part of an image needs to be recognized or if you need to process only some of the pages in a document. To edit an image: 1. Open the Edit Image dialog box (Page>Edit Page Image…). 24
ABBYY FineReader 10 User’s Guide The left–hand side of the dialog box displays the current page of the document opened in ABBYY FineReader, and the right– hand side contains image editing tools. The page navigation pane is at the bottom. 2. An overview of editing tools: ● Deskew corrects image skew. ● Photo Correction straightens text lines, removes motion blur, and reduces noise. ● Correct Trapezium Distortions corrects perspective distortions. ● Rotate&Flip rotates the image to standard orientation (horizontally, left to right). ● Split splits the image (e.g. facing pages) into separate units. ● Crop is used to crop the unneeded edges of an image. ● Invert enables standard inversion of document colors (dark text against light background). ● Image Resolution changes image resolution. ● Eraser erases a part of the image. Click the button of tool you want to use to perform the necessary adjustments. The left–hand side of the dialog box displays a preview of the results. Most of the tools can be applied to all of the pages in a document by checking the Apply to all images option. 3. Once you have made all of the necessary adjustments, close the dialog box by clicking . 25
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