This tool gives a magnified view of the image under the cursor in the Display Area. The center red square in the Blow-Up area corresponds to the pixel under the cursor in the Image Display Area.
Note:
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From the Graphic Interface
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               A blow-up of the image, centred on the position of the cursor will be displayed here. 
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               The magnification of the blow-up image can be modified with the slider located to its right. At its smallest magnification (cursor at the bottom), one pixel of the screen shows one pixel of the image.  | 
          
From the Display Area
The image in the blow-up window is centered around the current cursor position when the cursor is over a frame.
From the Keyboard
There is no keyboard interface specific to this tool.
From the Command Line
There is no command line or variables associated with this tool.
