Working with an Image

• Despeckle image
• Invert image
• Rotate or flip image 
• Clear block
• Increase/Decrease image scale
• Get image information
• Print image
• Undo the last action

1. Despeckle image

   The recognized image may have a large amount of "dust" present on it, i.e. a large number of excess dots. The dots arise in the case of documents of medium-to-low print quality, and dots located close to character outlines may have an adverse effect on recognition quality. To decrease the number of dots:

   • Select the Despeckle image item in the Image menu.

   To despeckle a particular block:

   • Select the Despeckle block item in the Image menu.

   Note: If the original document is very faint or set in a very light font, despeckling the image may cause periods, commas, and very thin character parts to disappear, decreasing recognition quality.

   If you scan or open "dusty" images, select the Despeckle image item in the Image Preprocessing group on the Scan/Open Image tab (Tools>Options menu) to have images despeckled before the application adds them to the batch.

2. Invert image

   Some scanners invert images (turning black into white and vice versa) during scanning.

   You may wish to apply the Invert Image option to ensure that documents have a uniform or standard appearance, e.g. a black font against a white background. To do this:

   • Select the Invert Image item in the Image menu.

   Note: If you scan or open inverted images, select the Invert image item in the Image Preprocessing group on the Scan/Open Image tab (Tools>Options menu) before adding these images to the batch.

3. Rotate or Flip image

   Recognition quality depends greatly on an image having a standard orientation (the text should be read from top to bottom and all lines should be horizontal). By default FineReader automatically detects page orientation during the recognition stage. If FineReader detects page orientation incorrectly, clear the Detect image orientation (during recognition) item on the Scan/Open Image tab and rotate the image manually so that it has a standard orientation:

   • Click the button or select the Rotate Clockwise item in the Image menu to rotate the image 90° clockwise. 

   • Click the button or select the Rotate Counter-Clockwise item in the Image menu to rotate the image 90° counter-clockwise.
   • Select the Rotate Upside Down item in the Image menu to rotate the image 180°.

   To flip the image:

   • horizontally (around the vertical axis)  -  select the Flip Horizontal item in the Image menu,
   • vertically (around the horizontal axis) -  select the Flip Vertical item in the Image menu.

4. Clear block

   If you do not wish a certain image area to be recognized or if you have large areas of dust present on the image, you can simply erase them. To do this:

   • Select the tool and then select the image area you wish to erase by holding down the left mouse button. Release the button to erase the selected image area.  

5. Increase/Decrease image scale

   • Select the / tool on the Image bar (in the Image window) and click on the image. The image scale will double/halve.
   • Right-click the image and select the Scale item followed by the desired scale percentage in the local menu. 

6. Get image information 

   The following image information can be obtained: image width and height in pixels; vertical and horizontal resolution per inch (dpi); image type. 

   • Right-click the image and select the Properties item in the local menu. A dialog will open. Select the Image tab in the dialog.
7. Print image
   To print the image open in the Image window, the images of pages selected in the Batch window, or all batch page images:
   • Select the Print image item in the File menu. The Print dialog will open. Set the required printing parameters (the printer to be used, number of pages to be printed, the number of copies etc.) in the dialog.
8. Undo the last action
   • To undo the last action click the Undo button on the Standard bar .

   Tip: To undo the Undo action click the Redo button on the Standard bar .