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basic:image_preprocessing [2013/09/03 06:11] – created henning_stummerbasic:image_preprocessing [2013/11/14 08:32] (current) – [Crop and Rotate] henning_stummer
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 ===== Crop and Rotate ===== ===== Crop and Rotate =====
  
-If you simply need to change a photo from horizontal to vertical alignment (portrait vs. landscape) or vice versa, click the “Rotate Clockwise” or “Rotate Counter-Clockwise” button on the bottom toolbar. The Crop and Rotate selection in the Image Toolbox opens a window with more fine-tuning capabilities.  Align the dotted line of the crop tool to a line in the image and rotate to the exact degree quickly and effortlessly. The “Crop and Rotate” tool performs a number of tasks:+{{:image_archive:filter:crop-rotate.png?nolink }} If you simply need to change a photo from horizontal to vertical alignment (portrait vs. landscape) or vice versa, click the “Rotate Clockwise” or “Rotate Counter-Clockwise” button on the bottom toolbar. The Crop and Rotate selection in the Image Toolbox opens a window with more fine-tuning capabilities.  Align the dotted line of the crop tool to a line in the image and rotate to the exact degree quickly and effortlessly. The “Crop and Rotate” tool performs a number of tasks:
  
   * **Rotate**\\ If your camera has no orientation sensor, then you will likely need to rotates portrait images by 90°.   * **Rotate**\\ If your camera has no orientation sensor, then you will likely need to rotates portrait images by 90°.
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   * **Align**\\ If the camera was tilted or an image was not perfectly aligned in the scanner, you can place the alignment handles along a known vertical or horizontal line in the image.   * **Align**\\ If the camera was tilted or an image was not perfectly aligned in the scanner, you can place the alignment handles along a known vertical or horizontal line in the image.
   * **Choose Aspect Ratio**\\ Enter the desired aspect ratio and then select the “Fix” checkbox.  Now the horizontal and vertical cropping knife handles will always move together so that the resulting cut-out area will maintain the chosen aspect ratio.   * **Choose Aspect Ratio**\\ Enter the desired aspect ratio and then select the “Fix” checkbox.  Now the horizontal and vertical cropping knife handles will always move together so that the resulting cut-out area will maintain the chosen aspect ratio.
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 ===== Red-Eye Correction ===== ===== Red-Eye Correction =====
  
-An annoying result of flash photography is red pupil discoloration in people and other pupil colors in animals.  To correct this effect use the “Red Eye Removal” preprocessing tool.+{{:image_archive:filter:redeye.png?nolink }} An annoying result of flash photography is red pupil discoloration in people and other pupil colors in animals.  To correct this effect use the “Red Eye Removal” preprocessing tool.
  
 In the left “Select Area” pane, click on a discolored eye.  The “Select Red Eye” pane on the right zooms into the selected area so that you can make an accurate selection.  In the right pane, click exactly inside the discolored pupil. In the left “Select Area” pane, click on a discolored eye.  The “Select Red Eye” pane on the right zooms into the selected area so that you can make an accurate selection.  In the right pane, click exactly inside the discolored pupil.
basic/image_preprocessing.1378203072.txt.gz · Last modified: 2013/09/03 06:11 by henning_stummer