Scanning under Linux using xvscan.

Login and start X-Windows with:	mitx

Note it is a good idea to clear the background.  From an xterm,
type:  xv -clear

Start xvscan.  Again, from an xterm, type:  xvscan &

Press [CTRL]-a inside the 'xv' window to open the 'XVScan' window


Turn the Gamma Correction on by clicking the box to the left of the 
words "Gamma Correction" in the 'XVScan' window.


Note, to prevent smudges or smears on scans, do NOT touch the scanner
bed (glass) surface

Do one of the following three:
For a single page:
Place the page to be scanned face up into slot on the top of the
scanner
Lock the page down with the 'lock lever' on the scanner
Press "Next Page" to scroll the page in
For a slide:
Open the scanner lid
Place the slide scanner thingie in the top right-hand corner
with the arrow on the thingie facing that corner
Leave lid open
Set the slide face down on the scanner bed
Gently push the slide through the opening on the right side of the
slide scanner thingie until the base of the slide is even and completely
within it
For a book, stapled document, photo, etc.:
Open the scanner lid
Place item face down on scanner bed against the top right-hand corner
Shut as well as possible (optional)

Press the "81dpi Scan" button for 1st draft scan
-Note that the 'Scan Progress' window will appear
-Note also that this step may take several minutes the first time as the
	scanner lamp needs to warm up



(A)
Use the left mouse button to click and drag on the image to create a
box around the area you want to zoom in on


Select "Apply Crop"



(B)
If something is wrong and you need to change/undo the applied crop
Click and drag the 'cropped area' box in the 
'XVScan' window to suit your needs
Go to (B)
Do one of the following two:
For another test scan:
Press the "xyz dpi Scan" button for another draft scan
-Note, after cropping, the dpi may change for the draft scans
-This is the button above the "Apply Crop" button
Go to (A)
For a final scan:
Change your resolution as desired using the dial in the top
right-hand corner of the 'XVScan' window


Press the "Scan" button for final resolution scan

If you are not satisfied with the scan, go to (B)

Do one of the following two:
Eject the single page:
Press "Eject Page"
Unlock the 'lock lever' on the scanner
Remove the scanned material from the scanner bed (i.e., book, stapled
document, slide, etc.)
Press the "Close" button in the bottom right-hand corner of the
'XVScan' window to close it
-Note, this will not close the image (i.e., xv)

Right-click on the image to bring up the 'xv controls' window



(C)
If the image is not right-side up, do the following:
Rotate the image using the circle arrow buttons which are above
the "AutoCrop" button at the bottom, center of the 'xv controls' window


Go to (C)

Press the "Save" button to open the 'xv save' window


In the 'xv save' window, move to the directory in which you want the
scan saved

Change the image type option by clicking on the "Format" menu:
High resolution images:
'JPEG' is the default and is the best all-around option for 
general use
'PNG' provides the best quality but you must know what you are doing
-Note, PNG is probably NOT a good idea for Windows users
 
Lower resolution images:
'BMP' is a decent quality and good compression
'GIF' is excellent compression but provides for only 256 colors
If you have a greyscale or b/w image, select the approprate option
from the "Colors" menu which is directly below the "Format" menu

Give the scanned image a name by typing in the "Save file:" bar at the
bottom of the 'xv save' window

This should probably end in a '.xyz' where XYZ is
whatever is showing for the "Format" option
-Note, use '.jpg' for 'JPEG' format
Also, this should probably NOT be a duplicate name of anything already
in that directory
Press the "Ok" button

If a window pops up asking about additional save options, press the
"Ok" button in that new window


If you want to print the image:
Press the "Print" button
In the new window, give 'lpr' the proper options (typically ' -h -Pcolor'
without the tics)


Press the "Color" button
Set the orientation and resize the picture to your liking


Press the "Ok" button to print

Press the "Quit" button to exit xv

If you want to manipulate the image further, reopen it using The GIMP
with: gimp &

If you have any questions or comments concerning the implementation of xvscan, xv, The GIMP, X-Windows, Linux in general, etc., please contact me or any other UC via e-mail at:

linuxman@nmt.edu
or
uc@nmt.edu

Thank you.

Documentation by:

Scott Bucholtz
Senior User Consultant,
New Mexico Tech Computer Center

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