User manual MINOLTA Q-SCAN

[. . . ] Familiarity with the mouse and standard operating system menus and commands is necessary before operating the driver software for the Dimâge Scan Speed. This manual does not instruct in the: · basic use of personal computers. The appearance of some screens may differ from the examples when using Windows 98, Windows NT, or the Macintosh operating system. Microsoft, Windows®, Windows 95®, Windows 98®, and Windows NT® are registered trademarks of the Microsoft Corporation. [. . . ] The windows display a one step change in the brightness and contrast, but up to 10 steps (+/-) can be applied. The selected colour, brightness, and contrast changes are automatically applied to the preview image 2. Click on the appropriate window or move the sliders to increase or decrease the contrast and/or brightness. · The changes are automatically applied to the preview image. · Additional contrast and brightness simulations will be mapped around the center image. Correcting th e brightness and contrast may eliminate the need for colour correct ions. Adjusting the Colour 3. Adjust the colour balance as necessary by clicking on the R, G, and B sliders. · R can subtract red (left arrow) or subtract cyan (right arrow). · G can subtract green (left arrow) or subtract magenta (right arrow). · B can subtract blue (left arrow) or subtract yellow (right arrow). Applying the Corrections 4. Click on scan. · Click on · Click on corrections. to apply the changes to your to cancel all corrections and start over. to close the variations window without applying any 34 IMAGE CORRECTION ­ HISTOGRAM The histogram dialog box displays the frequency of occurrence of the 256 levels of brightness (0-255) for each of the colour channels that make up the image area inside the cropping frame. The midtones fall in-between. · The histograms represent the red, green, and blue brightness levels for the control image. and hold Click on in the prescan window. The Histogram Dialog Box -- Names of Parts Control image White point button Black point button Gray point button Output histogram button RGB synchro button Load settings button Save settings button Shadow sliders Midtone slider Highlight sliders Output level sliders Input level sliders Preview image Dimâge Scan Speed 35 IMAGE CORRECTION ­ HISTOGRAM Setting the White, Black, and Gray Points Properly setting an image's white and black points will usually correct the colour cast and midtone distribution. Select the settings file you want to use, then click on . · The settings in the selected file are applied to the current image. The histogram settings files for colour and bl ack and white film are not interchangea ble. Dimâge Scan Speed 39 IMAGE CORRECTION ­ TONE CURVES The Tone Curves dialog box displays curves for the prescanned image inside the cropping frame. The curve represents the input brightness values (x-axis) in relation to the output values (y-axis). It is possible to make changes to the individual curves for each channel; red (R), green (G), and blue (B), or to make changes to the overall curve (RGB curve). · The right side of the curve affects highlights, the left side of the curve affects shadows, and the midtones fall in between. Brightness values are 0 (black) at the bottom of the grid, 255 (white) at the top of the grid, and the middle values fall in between. Click on in the prescan window. Tone Curves Dialog Box -- Names of Parts The curves dialog box will appear. Control image Colour channel list box White point button Black point button Free curve button Calculate button Output brightness value Input brightness value Preview image 40 IMAGE CORRECTION ­ TONE CURVES Setting the White and Black Points Properly setting an images white and black points will usually correct the colour cast and midtone distribution. · Changes are automatically applied to the preview image. 1. Click on , then click on the tone in the control image that should be scanned as the brightest neutral white in your image. · The pointer changes to . · The RGB brightness values of the selected tone will be changed to 255. 2. Click on , then click on the tone in the control image that should be scanned as the darkest neutral black in your image. · The pointer changes to . · The RGB brightness values of the selected tone will be changed to 0. Continued on the following page. Dimâge Scan Speed 41 IMAGE CORRECTION ­ TONE CURVES Correcting the Curves Changing the shape of a correction curve changes the output level for each corresponding input level. Changing the shape of the red, green, or blue curves affects colour balance of the image. Changes to the RGB curve affect the image contrast and brightness. 1. [. . . ] These are the colours of the three channels that make up the scanned image. Monitors use red, green, and blue phosphors to create the image you see on the screen. In addition to being a widely supported format, TIFF is able to handle the colour palette needed for professionalquality images and graphics. BMP images are supported by the Paint accessory and can easily be opened on most PCs running Windows. RESOLUTION RGB SHADOWS TIFF WINDOWS® BMP Dimâge Scan Speed 65 COLORSYNCTM ­ Macintosh only ColorSyncTM helps your colour devices (monitor, scanner, printer, etc. ) match their colours, making it faster and easier to obtain the correct colours in the final image. The device profile included with the Dimâge Scan Speed driver software is compatible with ColorSyncTM ver 2. 0 (included with your software). [. . . ]