Special Note: MS Word did not convert the Table of Contents as expected

Preface *

Chapter 1 – Introduction to your new scanner *

What is a scanner? *

What are the features of your scanner? *

What can your scanner do? *

What are the bundled software? *

What are the system requirements of your scanner? *

 

Chapter 2 – Setting up your scanner *

Finding all the parts *

Unlocking your scanner *

Putting the scanner together *

Connecting the scanner to a power source *

 

Chapter 3 – Installing the accompanying software and driver *

Installing Adobe PhotoDeluxe *

Installing Presto! PageManger, VistaScan, and the on-line manuals *

 

Chapter 4 – Scanning your first image *

Preparing to test the scanner *

Testing the scanner *

Preparing to scan *

Acquiring VistaScan *

Previewing the image *

Scanning the document *

 

Chapter 5 – Configuring your scanner *

Image type *

Document type *

Resolution type *

Scale type *

MagicMatch function *

Auto Adjust function *

Output Device *

Gamma Scroll Bar *

Highlight Scroll Bar/Shadow Scroll Bar *

Contrast Scroll Bar *

Brightness Scroll Bar *

 

Chapter 6 - Troubleshooting *

Hardware problems *

VistaScan problems *

Presto! PageManager problems *

Adobe PhotoDeluxe problems *

 

Chapter 7 – Getting technical support *

Preparing to contact technical support *

Online technical support *

Email option *

Telephone and Fax option *

 

Chapter 8 – Graphics types *

Table – Graphics types *

Type *

 

Chapter 9 – Scanner controls *

Table 9.1 – Image type *

Table 9.1 – Image type (cont’d) *

Table 9.2 – Document type *

Table 9.3 – Resolution type *

Table 9.4 – Scale type *

Table 9.5 – Magic Match *

Table 9.6 – Auto Adjust *

Table 9.7 – Output Device *

Table 9.8 – Gamma Scroll Bar *

Table 9.9 – Highlight/Shadow Scroll Bar *

Table 9.10 – Brightness Scroll Bar *

Table 9.11 – Contrast Scroll Bar *

Table 9.12 – Information Area *

Table 9.13 – Execution Buttons *

 

Chapter 10 – Glossary *

 

Index *

 

 

Preface

 

Welcome to the manual for the UMAX Astra 1220P Scanner. This manual is intended for individuals who want to use this scanner for personal rather than commercial projects. This manual assumes you areSuch an audience would be familiar with computers but would not necessarily be highly skilled in all computer functions.

This scanner comes bundled with the following software:

This manual will help you install the scanner and perform your first scan. The manual is divided into 3 parts:

  1. Explanations of Understanding the concepts to help you understand the operation of your a scanner, itsthe accompanying programs, and the necessary system requirements.
  2. Step-by-Step Instructions to enable you to assemble yourPutting the scanner together and scanning your first picture.
  3. A Reference section, Chapters 8 and 9, that you can use to optimize the configuration of your scanner.Configuring the settings for scanning with the help of the reference section (Chapter 8-9).

Although the scanner also works with Windows 3.1, this manual is written for Windows 95. Some of this material will have to be adjusted if the scanner is not used with Windows 95.

 

 

 

Chapter 1 – Introduction to your new scanner

 

What is a scanner?

A scanner functions like a photocopier machine. A scanner takes images of any kind of document (photographs, letters, articles, newsprint, and other materials), and with the help of a graphics program, store the images on your computer.

 

 

What are the features of your scanner?

Your scanner consists of the machine itself, as well as software applications (VistaScan (VistaScan, you say, is a driver, and hence not an application?), AdobeDeluxe, and Presto! PageManager) on a CD-ROM that enable you to scan and manipulate images.

 

 

What can your scanner do?

Your new UMAX Astra 1220P scanner is a color scanner. You can scan color documents, as well as black and white documents. With the accompanying software, you can also manipulate and enhance the images that you scan.

 

 

What are the bundled software applications?

VistaScan

The user interface that controls the various functions of the scanner. With VistaScan, you can change the dpi, color/B&W, scaling, and other properties of your image. You can also crop and preview the images before scanning. (These techniques will be discussed in Chapter 5 of the manual.) This is more than a driver; this is an application because it has a user interface.

Presto! PageManager

The comprehensive multimedia image processing program that allows you to process the images you scan. Why multimedia? Is there sound? Movies?

Adobe PhotoDeluxe

Another image processing program that allows you to manipulate your scanned images as well as the presentation of your scanned images.

I need to know the difference between "process" and "manipulate" images and presentation, because I don’t see why there are two apparently identical applications.

 

 

What are the system requirements of your scanner?

To use the scanner, you must install VistaScan and one graphics program (either Adobe PhotoDeluxe or Preto! PageManager).

 

To install VistaScan, your system must should meet the following requirements:

To install AdobeDeluxe, your system must should meet the following requirements:

To install Presto! PageManager, your system should meet the following requirements:

 

 

Chapter 2 – Setting up your scanner

 

Finding all the parts

Your scanner consists of the scanner body, a power cord, and a parallel cable.

 

 

Unlocking your scanner

Before operating the scanner, you must unlock the restraint that secures the scanner optics for shipping. To unlock the restraint, move the lock, which is located toward the hinge at the top of the scanner, to the unlock position. Will this be clear for the user?

 

 

Putting the scanner together

  1. Turn off the computer and unplug the power cord.
  2. Connect the scanner parallel cable to the computer’s printer/parallel port. (If you have a printer hooked up to your computer through the printer/parallel port, disconnect the printer’s cable and plug it into the "To Printer" port that is located on the back of the scanner. This will enable the printer to connect to your computer through the scanner.)
  3. Attach the other end of the cable to the port labeled "To PC" at the back of the scanner.

 

 

Connecting the scanner to a power source

  1. Plug in the power cord to the back of the scanner.
  2. Plug the other end of the power cord into an electrical outlet.

 

Chapter 3 – Installing the accompanying software and driver

 

Installing Adobe PhotoDeluxe

(Note: PhotoDeluxe is only Windows 95, 98, and NT compatible.) All the sudden Windows 98 appears—we didn’t see it when discussing requirements, so it might be slightly better to mention it there too.

  1. Insert the CD labeled PhotoDeluxe into CD-ROM drive.
  2. Click on the Start button and then click on Run.
  3. Type d:/install on the command line. If your CD-ROM drive is designated by another drive, type the appropriate letter in the Run dialog box.
  4. Follow the on-screen instructions.

Good!

 

Installing Presto! PageManger, VistaScan, and the on-line manuals

  1. Insert the CD labeled UMAX Scanner into CD-ROM drive.
  2. Click on the Start button and click on Run.
  3. In the Run dialog box, type d:/setup. (If your CD-ROM drive is designated by another drive, type the appropriate letter in the Run dialog box.)
  4. Follow the onscreen instructions to complete the installation.

 

Chapter 4 – Scanning your first image

 

Preparing to test the scanner

Before you test the scanner, be sure that the:

(the redundant "the"s somehow read more naturally as phrases)

 

 

Testing the scanner

  1. Click on Start. Under Programs, select VistaScan 32. Choose Scanner Test. The Scanner Test dialog box appears. (This is a result)
  2. The Scanner Test dialog box appears. (This dialog appearing is a result, not a user action) Choose the Test button. The Test Scan dialog box will appears.
  3. Choose the Scan button to make a test scan as well as test the scanner connection. If everything is working correctly, a "Link Successful" message appears in the Information area of the dialog box. If there is an error during the scanner hardware or software installation, an error message, "Scanner Link Failed", appears in the Information area of the dialog box. (To solve this problem, check the hardware connections and ensure that the software has been properly installed. See Refer to ["see" is shorter than "refer to"] the troubleshooting chapters of the relevant documentation to fix the problem. Possible causes may be incorrect DIP switch settings on the interface card, I/O address conflict, loose connections, and the like. If you refer me to a troubleshooting section, don’t do the troubleshooting here. Ensure that the switch settings shown on the Scanner Test Dialog box match the interface card DIP switch settings. After fixing the problem, try the scanner test again by repeating the above steps.) For more information on troubleshooting, see Chapter 6.)
  4. Choose the Exit button to close the Scanner Test dialog box.

 

 

Preparing to scan

  1. Raise the cover of the scanner to position the document.
  2. Place the document face down on the scanner’s glass surface.
  3. Lower the scanner’s cover.

 

Acquiring VistaScan

You can acquire VistaScan either through Presto! PageManager or Adobe PhotoDeluxe or any TWAIN (Technology Without An Independent Name) compliant application, such as PhotoShop?.

 

Presto! PageManager
    1. Click on the Start button. Under Programs, choose Presto! PageManager.
    2. Acquire VistaScan either by clicking on:

 

Adobe PhotoDeluxe
    1. Click on the Start button. Under Programs, choose Adobe PhotoDeluxe. [formatting?]
    2. Acquire VistaScan either by clicking on:

 

 

Previewing the image

A preview is a quick, low-resolution image of the entire scannable area. Before scanning an image, it is helpful to get a preview of the image. VistaScan displays this preview in the PREVIEW WINDOW when you click on the Preview button. See the following figure. (However, before previewing or scanning an image, you can set your desired image settings and adjust the preview size to speed up the scanning process and allow accurate preprocessing of the final scan. See Chapter 9 on Scanner Controls to learn about configuring options.)

Nice graphic with call outs!

 

 

  1. In the Image Type menu, select the desired image type. (See page 9 to learn about image types.)
  2. From the Document Type menu, select the type of your source document. (See page 9 to learn about document types.)
  3. Choose Preview Size from the Settings menu to set the preview size. Alternatively, you can use your cursor to change the lengths of the rulers. Click and hold the mouse cursor down on the end of the ruler, and then move the end of the ruler back and forth in order to select the desired length.
  4. In the Preview Size sub-menu, select your desired preview size for your image or document for scanning.
  5. Click the Preview button on the VistaScan main screen to start the pre-scan operation. As the image is being previewed/scanned, it is simultaneously displayed in the PREVIEW WINDOW of the VistaScan main screen.

 

 

Scanning the document

  1. (Skip this step if you have already previewed the document.) From the VistaScan dialog box,
  1. Select the desired settings. (Refer to Chapter 5 for details on configuring settings.)
  2. Click on the Scan button. (Note: To halt a While scanning is in progress, click you can choose Abort if you want to stop scanning.)
  3. Click on the Exit button. (Depending on the host application you use with VistaScan, the screen reverts to your application after the scan is completed, thus, giving you a view of your scanned image. If the application does not do this, choose the Exit button to exit the VistaScan main screen and go back to your host application.) This concept of "host application" should be in the Concepts section, when you introduce the two bundled software applications? No, by "host application" do you mean something else?
  4. Your scanned image can now be formatted with the tools of either Presto! PageManager or Adobe PhotoDeluxe. See the accompanying manuals or online help.

 

Chapter 5 – Configuring your scanner

(Note: Refer to Chapter 9 for detailed descriptions of each configuration.)

 

Image type

In the Image Type menu, select the appropriate image type. Choose from B/W Document, B/W Halftone, B/W Photo, True Color, RGB, and Custom.

 

 

Document type

This setting identifies the type of original document you will be scanning. Choose from Reflective, Transmissive, Negative, and ADF (Automatic Document Feeder) . Click on the arrow. A drop down menu appears. Click on the desired setting.

 

 

Resolution type

Select the desired resolution for your image. Click on the arrow. A drop down menu appears. Click on the desired setting.

 

 

Scale type

Select the desired scale factor for reducing or enlarging your final scanned image. Click on the arrow. A drop down menu will show up. Click on the desired setting.

 

 

MagicMatch function

Check the MagicMatch checkbox to allow VistaScan to automatically fine tune the colors of your scanned image to match the original. Avoid "may": Alternatively, yYou can alsomay fine tune the colors manually.

 

 

Auto Adjust function

Check the Auto Adj. checkbox to activate the auto image adjustments. Since Auto Adj. allows VistaScan to set optimal values (contrast, brightness, highlight), adjusting other control bars will automatically deselect Auto Adj.

 

 

Output Device

Choose from the menu depending upon the destination of your scanned image. Click on the arrow. A drop down menu will show up appears (be consistent). Click on the desired setting.

 

 

Gamma Scroll Bar

Click on either end of the scroll bar to select desired values. You assume the audience understands the concept of "gamma"?

 

 

Highlight Scroll Bar/Shadow Scroll Bar

Click on either end of the scroll bar to select desired values.

 

 

Contrast Scroll Bar

Click on either end of the scroll bar to select desired values.

 

 

Brightness Scroll Bar

Click on either end of the scroll bar to select desired values.

 

 

Chapter 6 – Troubleshooting

 

Hardware problems

Check the scanner hardware installations and connections. Were they properly and completely done? Are the connections firm and secure in place? The fFollowing is an installation checklist:

 

 

VistaScan problems

 

 

Scanner Test

  1. Click on Start. Under Programs, select VistaScan 32. Choose Scanner Test.
  2. The Scanner Test dialog box appears. Choose the Test button. The Test Scan dialog box will appears.
  3. Choose the Scan button to make a test scan as well as test the scanner connection. If everything is working correctly, a "Link Successful" message appears in the Information area of the dialog box. If there is an error during the scanner hardware or software installation, an error message, "Scanner Link Failed", appears in the Information area of the dialog box. (To solve this problem, check the hardware connections and ensure that the software has been properly installed. Refer to the troubleshooting chapters of the relevant documentation to fix the problem. Possible causes may be incorrect DIP switch settings on the interface card, I/O address conflict, loose connections, and the like. Ensure that the switch settings shown on the Scanner Test Dialog box match the interface card DIP switch settings. After fixing the problem, try the scanner test again by repeating the above steps.)
  4. Choose the Exit button to close the Scanner Test dialog box.

 

 

 

Presto! PageManager problems

Consult the accompanying manuals. Use standard English grammar

 

Adobe PhotoDeluxe problems

Consult the accompanying manuals.

 

Chapter 7 – Getting technical support

 

Preparing to contact technical support

Go through the installation setup to make sure everything is installed correctly. If that does not resolve the problem, contact your dealer or Technical Support. Be sure to have the following information ready:

 

 

Online technical support

UMAX has a website that provides technical support. The features include Frequently Asked Questions, Smart Site (web-based version of automated telephone support system), and driver software downloads. What is the URL?

 

 

Email option

Send inquiries to Error! Reference source not found.

 

Telephone and Fax option

To access UMAX’s automated telephone support system, call:

To fax inquiries to UMAX’s technical support:

 

 

Chapter 8 – Graphics types

 

Table – Graphics types

Type Description
BMP

(Bit-Map file)

 The file name extension given to Windows bitmap graphic image files.
GIF

(Graphics Interchange Format)

 A graphics format that is frequently used on the Web. GIF files work best for logos, icons, and line art. Because the format is limited to 256 colors, it is not ideal for photographs.
JPEG

(Joint Photographic Experts Group)

 An image format supported by most web browsers. This format is best suited for photographic images because it can display an unlimited number of colors and its compression routine is optimized for photographs. Its compression may not work as well for line art or images with large blocks of color.
PICT

(PICTure)

 A graphic image file format which can encode both bit mapped and object-oriented graphic images. Good! I never knew that!
TIFF

(Tagged Image File Format)

 A flexible bitmap image format supported by virtually all paint, image-editing, and page-layout applications. Also, virtually all desktop scanners can produce TIFF images.

 

 

Chapter 9 – Scanner controls

 

Table 9.1 – Image type

Type Description
B/W Document This image type provides the maximum possible contrast for a scanned image. It does not attempt to recreate shades of color or gray. Each pixel of the image is either black or white. This setting is ideal for pen and ink drawings. Only one bit of data is required for each pixel of such an image. This image type occupies the smallest amount of memory of any kind of image file.
B/W Halftone This image type uses different combinations of 1-bit black and white pixels to fool the eye into seeing simulated gray scales. Because this image type is only 1-bit (like B/W Document), the file size is smaller than gray scale or color. The file size of the image will be similar to images scanned in the B/W Document image type. So this is okay for photographs? Or they look rather unprecise?
B/W Photo This image type provides accurate representation of black and white, and gray shades intermediate between black and white, for each individual pixel. It actually provides just 256 shades, representing white by the value 255 and black by the value 0, with gray shades from 1-254. In this image type, 8 bits of data are required for each pixel in order to encode the different shades of gray. Hence, a gray scale image file will be 8 times as large as a black and white image file if all other parameters are equal.
True Color, RGB This image type uses the same color synthesis scheme used in computer monitors and television. RGB stands for Red-Green-Blue, these being the additive primary colors. Additive here refers to the addition, or mixing of light of different colors: mixing equal proportions of red, green, and blue produces white light. UMAX scanners capture 24 bits of color image information for every dot (pixel) in your resulting scanned image. Therefore over 16 million colors are possible. Are you saying that in base 2, 24 digits = 16 million in base 10? Resulting images can be truly stunning, but these color images usually require considerable disk space to be saved. What "usually"—if every pixel requires 24 bits, it won’t matter if my picture is mostly just blue or many different colors—what matter is only the number of pixels?

 

 

Table 9.1 – Image type (cont’d)

Custom:  

OCR

(Optical Character Recognition)

 		This image type allows you to scan documents which contain only text (no graphics). If the resolution is set too high or too low, the scanned image may not be recognized by any other OCR software. (If you want to OCR a scanned image after it has been scanned, choose the OCR setting in order to let VistaScan make the necessary settings itself and then perform an optical character recognition (OCR) on the scanned text.) Maybe we should say this works best with standard fonts, and is not designed for handwritten pages?

FAX

 		This allows you to scan documents for faxing. When this option is chosen, VistaScan automatically creates the necessary settings in order to scan the document for subsequent faxing. The scanned image will be one that is most suitable for transmission through any fax machine. So a fax is not a bitmap? It is a special format?

Web Photo

 		This option is most useful for depicting a scanned image on a monitor. It an be utilized most effectively when creating images for Web sites and transmission of images through a network. When this option is chosen, VistaScan automatically selects the appropriate settings for the scan. How does Web Photo compare to JPEG? Less "lossy"?

True Color, CMYK

 		This image type converts 3-channel RGB image color date into 4-channel CMYK image color date using a special color transform process. When the scan is complete, your CMYK image will be ready for immediate printing on a color printer, if desired. Since monitors display colors in 3-channel RGB, an RGB "simulation" of your CMYK image will be displayed in the main window of the image-editing application. These conversions and simulations are performed according to printer profiles which you select in the Output Device List box.

256 Colors

 		RGB color and CMYK color images are 24-bit [do you mean 8 bit? You say that 24 bit gives millions of colors?] color representations of the original. Because each pixel requires 24 bits of data to store color information, 24-bit color images require more memory and disk space than what?. Color images can be sampled down to 16 bits, 8 bits, 4 bits, to reduce the image size. A 256 color image may display up to 256 colors instead of millions of colors. In comparison with 24-bit color images, 256 color images take up less memory and hard disk space.

 

 

Table 9.2 – Document type

Type Description
Reflective Useful for paper originals (non-transparencies) which do not consist of a "see through" type of material. Examples include photographs, flyers, pamphlets, newspaper.
Transmissive Useful for transparent objects, like overhead projector slides, if a UMAX Transparency Adapter (a piece of hardware that is not included with the standard product bundle?) is installed and turned on.
Negative Useful for photographic negatives (through which light can pass) films if a UMAX Transparency Adapter is installed and turned on.
ADF

(Automatic Document Feeder)

 Useful for single or multiple pages with the same materials used for the Reflective setting if a UMAX Automatic Document Feeder (separate hardware?) is installed and turned on.

 

 

Table 9.3 – Resolution type

Description
The resolution setting determines the amount of information the scanner will captures in a scanned image and is measured in dots per inch (dpi). This ranges from 50 dpi to 9600 dpi. There is also an option to create a custom resolution type. TRemember, the higher the resolution, the finer the image detail, the longer it will take to scan, and the bigger the image file. ["Remember" is not a technical tone but rather an informal tone]

If you choose not to select one of the resolutions shown on the sub-menu, you can may specify your own by choosing Custom dpi... Theis will bring up the Custom Scan Resolution dialog box appears [consistent verb]. VistaScan allows you to set 3 custom more resolution settings by yourself. Type the desired resolution (in dpi) and click OK. These 3 settings appear will be displayed below the Custom dpi... settings in the Resolution pull down menu.

 

 

Table 9.4 – Scale type

Description
The scale type enlarges and reduces your final scanned image according to the factor you choose. (The default scale factor is 100%.) The scale ranges from 10% to 200% with an option to create a custom scale type.

If you choose to select the Custom Scales, a dialog box will be displayed [which dialog box appears?]. If you want to adjust both the X/Y scales simultaneously, check "Keep X, Y scales the same".

 

 

Table 9.5 – Magic Match

Description
This allows you to fine-tune the colors of your scanned images so that they closely resemble the colors of your original documents. If you select RGB or CMYK image type and check the Auto Adjustment option, VistaScan will checks for the presence of the MagicMatch color calibration profile and the Output Device selection will displays all the color calibration profiles in the list box. From the list box, choose one of the desired profiles, through which MagicMatch will be applied, to change the colors of the output image.

 

 

Table 9.6 – Auto Adjust

Description
Check the Auto Adj. checkbox to activate the auto image adjustments. The Auto Adjustment option allows VistaScan to set optimal values for highlight and shadow, brightness and contrast. Note that when you adjust the other control bars, the Auto Adj. checkbox automatically becomes deselected.

 

 

Table 9.7 – Output Device

Description
This selection determines what output device the image is sent to after color matching. Different output devices require different color calibration profiles. If you decide to send the scanned image to an output device (printer or monitor), you must choose the corresponding profile of that device.

 

 

Table 9.8 – Gamma Scroll Bar

Description
All optical devices, such as monitors and scanners, have some non-linearities in their light sensitive characteristics. To get a scanned image with good results, VistaScan provides Gamma adjustment for you to compensate for these non-linearities in your UMAX scanner. Usually, good results result by using the factory gamma setting. If you have done a calibration that indicates a different value as the Gamma correction for your scanner, you may might [avoid "may"] get improved results by entering the indicated gamma value.

 

Table 9.9 – Highlight/Shadow Scroll Bar

Type Description
Highlight Scroll Bar The highlight value represents the lightest value in an image. All pixels above this point will be [use present tense] rendered as pure white. All pixels below this point will be rendered as pure black. If you subsequently broaden the shadow and highlight points, the pixels will be remapped within the new range thus allowing you to see more detail in a color/gray image.
Shadow Scroll Bar The Highlight and Shadow scroll bars allow you to manually and independently set a highlight level, a shadow level, or both. With a preview image visible in the PREVIEW WINDOW, adjustment of these scroll bars may be made by dragging the sliders. The default for the Highlight and Shadow are 255 and 0, respectively. (This is the maximum range of brightness levels allowed within any given image.) You can increase or decrease the highlights or shadows in a particular image as needed by adjusting these two scroll bars.

 

 

Table 9.10 – Brightness Scroll Bar

Description
This setting determines the overall intensity level (gray level) of an image. For black and white (no gray) image, every object pixel that is above the selected brightness value will be rendered in the output image as white, and below every pixel will be rendered as black. For color and gray scale images, increasing the brightness level, causes the brightness level of each pixel to shift by the same amount, therefore pixels above a certain amount will be at their lightest and vice versa.

 

 

Table 9.11 – Contrast Scroll Bar

Description
This controls the difference between light and dark areas in an image. Moving the slider on the scroll bar to the right increases the gray shades between light and dark areas. Moving it to the left decreases gray shades between light and dark areas creating an image that has a higher percentage of gray with less pure black and white.

 

 

Table 9.12 – Information Area

Type Description
Image Size Shows the total necessary file size that your scanned image will take up on your hard disk.
Available Memory Shows the total free space on your hard disk.

 

 

Table 9.13 – Execution Buttons

Type Description
Preview Initiates a preview scan and displays the image in the PREVIEW WINDOW before scanning.
Scan Begins scanning. The scanned image will be shown on a screen under the host application (Adobe PhotoDeluxe or Preto! PageManager.).
Exit Closes VistaScan and returns you to the host application. This button will change to Abort during previewing or scanning. If you click Abort, the previewing or scanning process will be canceled.

 

 

 

Chapter 10 – Glossary

 

Terms and their Descriptions
ADF (Automatic Document Feeder) a machine that automatically streams sheets of paper. (?)
Application a software package designed for a specific purpose. And that has a user interface, unlike a driver (like a printer driver) which allows one machine (my compter) to talk to another (my printer) without bothering the user
Aspect Ratio a number which describes the relationship between the height and width of a rectangle or square.
Brightness the amount of white in an image overall. A pure white image has maximum brightness, whereas a pure black image has minimum brightness.
CMYK (Cyan, Magenta, Yellow, Black) the primary or process colors used in color printing. When dot screens of these four colors are combined using different densities, a wide range of colors is possible.
Calibrate the process of adjusting an input or output device so that it accurately captures or displays ranges of color.
Channel refers to each of the three (red, blue, green) portions of color image data in a color image file.
Color Matching the process of maintaining color fidelity in graphic images as they are passed from original documents to input devices and then to display or printer output devices.
Color Calibration Method the mathematical formula or algorithm used to calibrate an input or output device or the images produced/displayed by input/output devices.
Contrast the range of brightness or gray shades in an image. A high contrast image is a black and white image with no gray shades. A low contrast image shows many midrange gray shades.
Default the factory preset values of hardware or software program parameter settings.
Dialog box an onscreen window which provides a computer user with a choice or series of choices resulting in different courses of action.
DPI (Dots Per Inch) a measure of the resolution of an input (scanner) or output (monitor display screen, printer) device. For a monitor display screen, it refers to the number of pixels that can be displayed in an inch. For a printer, it refers to concerns [use consistent verbage] the number of dots that can be printed in an inch.
Driver a program that allows software or the operating system to communicate with a peripheral range.
Dynamic Range the extent to which a grayscale or color image exploits the full range of possible intensity (brightness or saturation) levels.
Gamma Correction a method for changing the brightness of certain mid-level color or gray shades wherever they may occur in an image. Gamma Correction can often improve the balance of gray or color in an image by brightening or darkening shadows in isolated areas of the image.
Gray or Grayscale the shades of gray between black and white, found in an image.
Highlight the lightest area in an image.
Host Application a program from which another is acquired. In this case, Adobe PhotoDeluxe and Presto! PageManager are both host applications to VistaScan. (?)
Level in grayscale image data, this term refers to the brightness data value for any pixel. In color image data, it refers to the saturation data value for any one of a pixel’s primary colors (channels). In both cases, it is always a value between 0 and 255. For 8-bit, but true color has a larger range, yes?
Lineart an image consisting of purely black and white pixels without any intermediate gray or color values. Examples are a line drawing or text document.
OCR (Optical Character Recognition) an image type that allows scanning of text-only documents.
Pixel (Picture Element) the smallest element (dot) forming an image in a computer display screen.
RGB (Red, Green Blue) the additional primary colors that represent the colors on computer monitor displays.
Resolution refers to how many pixels an input (e.g. scanner) or output (e.g. monitor screen or printer) device is capable of recognizing.
Saturation an imaging term used in connection with color images, referring to a measure of the intensity of any color in a color image.
Shades a general term referring to tonal variations, such as variations of brightness in a grayscale image, or variations of color or saturation in a color image.
Shadow the darkest area in an image
Tones an imaging term which refers to colors and mixtures of colors and having approximately the same meaning ad the general term, shades.
TWAIN (Technology Without An Independent Name) an application-independent driver which allows you to control a Windows application from within another Windows application, thus eliminating the need to quit one to switch to the other.

 

Index
(Special Note: MS Word did not convert the Index to HTML)