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3.7 The image viewer
The image viewer is used to display the scanned images and to start OCR. It's also possible to save the
images and the recognized text from here. Furthermore you can print the image. There a several possibilities
to open an image with the image viewer:
- If you scan using the "Temporary/Internal viewer" mode, the scanned image is automatically displayed
with the image viewer.
- If you click the "Viewer..." button, the last scanned image is opened
with the image viewer.
- If you are scanning using the "Multi scan" mode, you can doubleclick on an entry in the image list, to
display the image with the internal viewer.
- If you doubleclick on an item in the "History/Imagebrowser", the image is displayed with the image
viewer.
The menu bar
From left to right:
- The File menu
- Open image...(CTRL+SHIFT+O)
Opens a file dialog; select the imagefile you want to load.
- Open text...(CTRL+O)
Opens a file dialog; select the textfile you want to load.
- Open last scan
Loads the last scan, if available .
- Save image (CTRL+SHIFT+S)
Saves the image under its current filename.
- Save image as...
Opens a file dialog; choose an image format, a directory and a filename and save the image as
usual.
- Save image as...
Opens a file dialog; choose an image format, a directory and a filename and save the selected
part of the image.
- Save text (CTRL+S)
Saves the text under its current filename.
- Save text as...
Allows you to save the text like recognized with OCR. A normal file dialog will pop up.
- Print image...(CTRL+SHIFT+P)
Shows a print dialog which allows you to setup the printer, set the margins, the resolution...
well, and finally it allows you to print the image (of course:-)
- Print image selection...
Similiar to "Print image...", however, only the selected part of the image is printed.
- Print text...(CTRL+P)
Shows a normal Qt print dialog. The settings you made under "Editor-Options" are used for
printing.
- Close
Choose this menu item to close the viewer.
- The Edit menu
- Undo (image) (CTRL+SHIFT+Z)
Undo the last image modifications.
- Redo (image) (CTRL+SHIFT+Y)
Redo the last image modifications.
- Undo (text) (CTRL+Z)
Undo the last text modifications.
- Redo (text) (CTRL+Y)
Redo the last text modifications.
- Copy image (CTRL+SHIFT+C)
Copy the image to the clipboard.
- Copy image selection
Copy the the selected part of the image to the clipboard.
- Replace image with selection
Replace the image with the selected part of the image.
- Move selection
Change the selection mode to "Move selection". That means, that you can move the selection
rectangle by pressing down the left mouse button inside the selection rectangle.
- New selection
Change the selection mode to "New selection". That means, that you can create a new selection
rectangle by pressing down the left mouse button.
- Select all
Select the entire image.
- Cut text (CTRL+X)
Cut the highlighted text and copy it to the clipboard.
- Copy text (CTRL+C)
Copy the highlighted text to the clipboard.
- Paste text(CTRL+V)
Paste the text from the clipboard to the editor.
- The Zoom menu
Select one of the zoom factors. This only affects the representation in the image viewer; it doesn't
affect saving or printing.
- The Image menu
The image menu supplies some functions for image manipulation: Brightness/Contrast, Gamma,
Normalize, Invert, Posterize
- The OCR menu
- Enable OCR
If you enable this menu item, a text viewer is shown on the right side and the "Start OCR"
menu item is enabled.
- Start OCR
Select this menu item to start OCR.
- Start OCR on selection
Select this menu item to start OCR on the selected part of the image.
- Stop OCR
Select this menu item to stop OCR. This item is only enabled while OCR is pending.
- The View menu
- Toolbar
Enable this menu item to show the toolbar, disable it to hide the toolbar.
- Statusbar
Enable this menu item to show the statusbar, disable it to hide the statusbar.
- The Editor menu
Choose Options... to setup the editor. Save settings saves the current viewer settings
like toolbar positions, splitter size and others.
- The Help menu
Select the About... item, to display the about dialog. Select the About Qt... item
for information about Qt.
The tool bars
For some of the menu items, corresponding tool buttons are available; please read in the menubar documentation
about their meaning.
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