Chapter 3. MiraScan

3.2 Menu Bar
The menu bar consists of four pull down menus: File, Settings, Image and Help.

File Menu

LOAD CONFIG FILE...
Select this to display the Load Configuration File dialog box.

You can load any previously-saved configuration file from this dialog box.

SAVE CONFIG FILE
Select this to instruct the driver to save configuration data to the default MIRASCAN.CFG file in the MIRASCAN subdirectory under the TWAIN_32 directory in the Windows directory.

AUTO SAVE CONFIG FILE
Select this to save the configuration file to MIRASCAN.CFG automatically, when the driver dialog is closed.

SAVE CONFIG AS...
Select this to display the Save Configuration As dialog box

You can save the current configuration into a file you specify.
Load Default Setting
It makes the MiraScan to load the default configuration automatically.
Exit
Close the MiraScan file window. 


Settings Menu Output Device >

Selects the output device for your image. When Device Independent is selected, gamma value of 1.0 will be used. When Monitor is selected, monitor gamma will be used during scan.

SCAN SIZE...
Select this to display submenu to show the options of A4 or letter size..

AUTOMATIC PREVIEW
Each time the scanner driver is brought up, it will automatically execute the preview operation. 


Image Menu

INVERT
After checking this item, the image will have a negative picture effect with gray level complemented.

MIRROR
After checking this item, the image will have a mirror effect, like viewing the image in the mirror with the left and right positions exchanged.

AUTO DENSITY
After checking this item, the image will adjust the contrast automatically, and the image will be more vivid.

BRIGHTNESS/CONTRAST...
Check this item to display the Brightness/Contrast dialog box.

You can change the brightness and contrast from this dialog box. Use the two scrollbars to manually adjust them or click on the Auto button to let the driver perform automatic exposure and find the suitable values based on the data values of the image within the scanning area.

COLOR ADJUSTMENT...
Check this item to display the Color Adjustment dialog box.

You can adjust the color from this dialog box.
Input the reference value for medium gray color in the Red/Green/Blue or Hue/Sat/Lum text boxes. You can also point inside (1) with the mouse to set Hue and Saturation, and point inside (2) or move the scrollbar triangular mark with the mouse to set Luminance. Otherwise, you can key in values in the text boxes or move the scrollbar triangular mark to set Red/Green/Blue or Hue/Sat/Lum value. You can click on the Preview button to see the temporary effect in the preview area.

HISTOGRAM/TONE MAP...
Check this item to display the Histogram/Tone Map dialog box.

You can change the tone map from this dialog box. First, select the channel, i.e., color plane, where you want to change in the left side. Then use the three scrollbars to set brightest, middle and darkest gray, respectively. You can get an instant preview in the preview picture area each time you make a change.Or you can click on the DEFAULT buttom to keep the driver default setting.When you are satisfied with your adjustments, click on the OK button to close this window and keep your settings. Otherwise, click on Cancel to close this window and cancel all settings.

TEXT THRESHOLD...
Check this item to display the Text Threshold dialog box.

Input the threshold value here for use in text mode scanning. The default setting is 128. You can set the threshold value by pressing the spinner button or dragging the slider.When The auto check box is on, The auto check box will automatically checking the input data.The default buttom will change the setting into The default setting.

HALFTONE PATTERN...
Check this item to display the Halftone Pattern dialog box.

Dither image uses dispersed dots to simulate gray shades to the eye. Each bit, set on or off, is determined by the dither pattern. The scanner driver downloads the dither pattern to the scanner.
Normal halftone image uses clustered dots to simulate gray shades to the eye. Each bit, set on or off, is determined by normal halftone pattern. The scanner driver downloads the normal halftone pattern to the scanner.
Fine halftone image uses finer clustered dots to simulate gray shades to the eye. Compared to a normal halftone image, it preserves more shape details and less gray shades in a document. Each bit, set on or off, is determined by fine halftone pattern. The scanner driver downloads the fine halftone pattern to the scanner.
You can select halftone pattern by selecting items from the combo box or by clicking the bitmap button directly. When you change the halftone pattern, the picture at the preview area is redrawn. Click the OK button to confirm the selection or click Cancel to cancel the selection.

DESCREEN >
Check this item to display the Descreen submenu.

From here you can turn on and off the descreen function. When you turn on (select Normal) this flag, the driver will process the scanned image with the Desceen filter. The Descreen filter is used for the image printed out by halftoning or dithering. Without Descreen filter process, the scanned halftoning/dithering image will gain a moire effect. With the Descreen filter process, the image moire effect is removed and the image becomes smoother and more satisfactory.

From the Sharpness function you can change the data to more sharpness than before.The function will give you four level to setting the sharpness.With the Sharpness filter process, the image becomes brighter, lighter and more satisfactory.

COLOR WIZARD >
Check this item to display the Color Enhance submenu.

Here you can select color enhance function to get vivid image.

REMOVE FILM COLOR >
Check this item to display the Remove Film Color submenu.

Select Auto to select the automatic removal of film color. Select Manual to select manual removal of film color. Select Undo to undo the previous film color removal.

MONITOR GAMMA...
Check this item to display the Monitor Gamma dialog box.

Monitor screens usually do not represent color and grayscale correctly. In order to let the driver find the characteristic, i.e., gamma value, to get a more realistic representation, a process is employed as follows.
In each color channel, use the scroll bar to change the gamma value until you cannot tell the gray shade difference between the inner block and its enclosing block.
Click on the Default button to reset all values to 2.2. Select the Sync check box to keep all four color channels synchronized, i.e., with the same value.

INFO...
Check this item to display the Info dialog box

After checking this item, an Info box is shown at the top right corner of the screen. When you point your mouse on the preview area, the Info dialog shows the corresponding information about the mouse position. The X and Y values stand for horizontal and vertical coordinates, respectively. The R,G and B values stand for the red, green and blue gray level. Note that the Info dialog is always on top. 


Help Menu

HELP...
Click this item to invoke on-line Winhelp file.
HomePage Help
Click this item to invoke IE3.0 to read the HTML format user*s manual.

Download new driver
Click this item to invoke the "download new driver" homepage.

ABOUT MIRASCAN...
Check this item to display an About dialog box

This dialog box shows the firmware version, driver version, copyright messages and other information related to the driver and scanner.