ScanGear CS-U 6.2 User’s Guide N670U/N676U/N1240U Color Scanner for CanoScan for Windows for Macintosh...
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Contents Chapter 1 Before You Begin ........5 Troubleshooting Welcome to ScanGear CS-U 6.2 ............. System Requirements ..............Glossary Windows .................. Macintosh ................Index Starting and Closing ScanGear CS-U ..........Windows .................. Macintosh ................Getting Help in ScanGear CS-U............ Windows ................Macintosh ................
Contents Chapter 4 Scanning an Original ......52 Troubleshooting Preparing for the Scanning Job ........... Quick Start ..................Glossary Previewing and Scanning an Original ......... Scanning in the Simple Mode ..........Index Scanning in the Advanced Mode ..........Chapter 5 Multi-Photo Mode ........65 Multi-Photo Mode ................
chapter Contents Troubleshooting Glossary Index Before You Begin Welcome to ScanGear CS-U 6.2 System Requirements Starting and Closing ScanGear CS-U Getting Help in ScanGear CS-U...
Contents Welcome to ScanGear CS-U 6.2 Troubleshooting Glossary Welcome to Canon ScanGear CS-U 6.2. ScanGear CS-U 6.2 (hereafter referred to as ScanGear CS-U) will provide Index flexible, efficient image enhancement tools for scanning with your CanoScan N670U/N676U/N1240U Scanner by providing an interface with a variety of software applications.
chapter 1 Before You Begin Contents System Requirements Troubleshooting Glossary The hardware and software listed below is required to use ScanGear CS-U. Index Windows Computer: IBM PC/AT Compatible with USB port(s) standardly OS: Windows 98 Windows Millenium Edition Windows 2000 Professional CPU: Pentium 150MHz or greater RAM: 64MB or more HDD Free Space: Approx.
chapter 1 Before You Begin Contents Macintosh Troubleshooting Computer: Macintosh with USB port(s) standardly Glossary OS: Mac OS 8.6 Index Mac OS 9.0 Mac OS 9.1 Mac OS X (Classic Mode only) CPU: Power PC G3 or greater RAM: 64MB or more With Mac OS X 128MB or more HDD Free Space: Approx.
chapter 1 Before You Begin Contents Starting and Closing ScanGear CS-U Troubleshooting Glossary ScanGear CS-U is not a stand-alone program that can be started by itself. It is used as a TWAIN driver (Windows) or plug-in (Macintosh). Start the Index application program first, then start ScanGear CS-U from the program.
chapter 1 Before You Begin Contents Macintosh Troubleshooting Glossary Starting Index 1. Start the parent application software such as PhotoStudio or Photoshop. 2. Click the [File] menu and select [Acquire] or such, and [ScanGear CS- U 6.2.0...]. ScanGear CS-U will start. Closing When scanning is completed, the ScanGear CS-U window automatically closes (Macintosh only).
chapter 1 Before You Begin Contents Getting Help in ScanGear CS-U Troubleshooting Glossary Index Windows For information about using ScanGear CS-U, open the on-line Help by clicking the Help button on the toolbar. Click the Contents or Index tab to see if the topic you are looking for is covered elsewhere in on-line Help.
chapter 2 Simple Mode and Advanced Mode Contents What are the Simple Mode and Troubleshooting Glossary Advanced Mode? Index You can run ScanGear CS-U in either of two modes: the Simple Mode and Advanced Mode. Simple Mode The Simple Mode, as its name implies, is easy to use and fast. You can set up a scanning job quickly just by selecting from the name that best describes the job you want to execute: Color Photo, Color Photo Fine, B&W Photo, and so on.
chapter 2 Simple Mode and Advanced Mode Contents Switching Between the Simple and Advanced Troubleshooting Modes Glossary You can switch between the Simple and Advanced Modes simply by Index clicking a button. • In the Simple Mode main window, click the Advanced Mode button to open the Advanced Mode main window.
chapter 2 Simple Mode and Advanced Mode Contents Simple Mode Main Window Troubleshooting Glossary Index The ScanGear CS-U main window in the Simple Mode has only one sheet, named “Simple Mode” followed by the name of your scanner. Use the Simple Mode sheet settings to select the settings for a scanning job.
chapter 2 Simple Mode and Advanced Mode Contents Advanced Mode Main Window Troubleshooting Glossary Index The ScanGear CS-U main window in the Advanced Mode has more sheets to perform the settings for scanning. In the Advanced Mode click the Main tab, Tone tab (or Halftone tab), or the Scanner tab to open the Main sheet, Tone sheet (or Halftone sheet) or Scanner sheet.
chapter 2 Simple Mode and Advanced Mode Contents If you select Black and White for the Color Mode on the Main sheet, the Troubleshooting Tone tab is replaced with the Halftone tab. Glossary Index Windows Macintosh With Windows, if you select Text Enhanced for the Color Mode on the Main sheet, neither Tone tab nor Halftone tab is displayed.
chapter 3 What is on the Screen? Contents Main Window Troubleshooting Glossary Close Box Index (With Macintosh, the Title Bar Preview Button Scan Button Close Box locates in the top left of the window.) Tool Bar Clear Button Setting Tab Mode Switching Button Preview Area Window Resize Corner...
chapter 3 What is on the Screen? Contents Toolbar Troubleshooting Glossary Buttons on the toolbar help you to perform important tasks like, cropping images, moving images, zooming, and so on. Index Crop Button Click the Crop button and drag the pointer in any direction to draw a rectangle around the area you want to select for scanning.
chapter 3 What is on the Screen? Contents Zoom Tool Button Troubleshooting Click the Zoom Tool button and then click the left or right mouse button to change the size of the Preview image. Glossary • To increase the magnification of the image, click the Zoom Tool Index button then click the left mouse button (Windows) / click the mouse button (Macintosh) on the area of the previewed image to view.
chapter 3 What is on the Screen? Contents Rotate Right Button Troubleshooting Click the Rotate Right button to rotate a scanned image right 90 degrees (clockwise). Click this button repeatedly to continue rotating the image Glossary right. Index Rulers Button Click the Rulers button to display a ruler in the Preview Area to help with sizing and cropping the image.
chapter 3 What is on the Screen? Contents Scanning Buttons Troubleshooting Glossary Index Preview Button Click the Preview button to pre-scan the image and display it in the Preview Area so you can decide whether the image needs any adjustments or if you want to apply any special effects.
chapter 3 What is on the Screen? Contents Simple Mode Main Window Troubleshooting Glossary In the Simple Mode, only the Simple Mode sheet is available in the main window. Index Image Type When you select the Image Type based on how you intend to use the scanned image, the Color Mode and Resolution settings are selected for you automatically for optimum scanning results.
chapter 3 What is on the Screen? Contents •B/W Photo (Grayscale, 150 dpi): Troubleshooting Use to scan black-and-white photographs with varying shades of gray. Glossary •B/W Photo Fine (Grayscale, 300 dpi): Use to scan black-and-white photographs with varying shades of gray Index for best quality in the scanned image.
Scanning speed at this setting will be slower than with the Color (Photos). • Text Enhanced (only for Windows) Converts grayscale images to black and white using Canon ImageTrust technology. This setting produces sharper text which will be easier for OCR software to read. •...
chapter 3 What is on the Screen? Contents Resolution Troubleshooting Displays the Resolution setting for the currently selected Image Type. And the Resolution can be set to one of the settings provided. In this case, a new Image Glossary Type can be saved under a new name. Index Edit Image Type Button Click the down-arrow for Image Type and select Custom (or select a...
chapter 3 What is on the Screen? Contents Paper Size Troubleshooting Specifies the paper size of the image to be scanned. Glossary Changing the Paper Size clears the Preview area and clears all settings set with the Toolbar and Tone sheet Index buttons.
The Auto Tone Glossary is available only when Color or Grayscale has been selected on the Main sheet and when Canon ColorGear Color Matching (Windows) / ColorSync Index Color Matching (Macintosh) is not selected on the Scanner sheet.
Scanning speed at this setting will be slower than with the Color (Photos). • Text Enhanced (only for Windows) Converts grayscale images to black and white using Canon ImageTrust technology. This setting produces sharper text which will be easier for OCR software to read.
chapter 3 What is on the Screen? Contents • The Text Enhanced selection requires more time than Troubleshooting the Black and White setting, because digitization of the scanned image is performed after scanning it in Glossary Note Grayscale. • Selecting the Color Mode setting automatically resets Index the Tone tab settings.
chapter 3 What is on the Screen? Contents Selection Troubleshooting Use the Selection options to set the exact size of the image input. Glossary To select the area to scan, use the Crop button or Auto Crop button or enter the desired dimensions in the text Index box.
chapter 3 What is on the Screen? Contents Print Size Troubleshooting Use the Print size selection to set the output image size. Varying one of Width, Height or Scale makes the others vary automatically. The resolution Glossary of the scanned image is kept as specified, so that the scanning resolution changes according to the size setting here.
chapter 3 What is on the Screen? Contents The Scanner Sheet Troubleshooting Glossary Index When you click on the Scanner tab (N670U/N676U or N1240U), the Scanner sheet opens. Paper Size Specifies from the drop-down list the paper size of the image to be scanned.
chapter 3 What is on the Screen? Contents Descreen Troubleshooting Click this check box if you want ScanGear CS-U to conduct moiré reduction to improve the overall image quality. Moiré are dot patterns that interfere Glossary with processing images for professional use and are usually caused by poor dithering resulting from scanning images from newspapers, books, Index magazines, etc.
chapter 3 What is on the Screen? Contents Remove Dust and Scratches Troubleshooting This function automatically produces a scanned photo image with the areas under small bits of dirt or scratches removed. The available settings are Glossary [None], [Soft], [Normal] and [Hard]. Index •Soft Compensates for high-contrast dirt and scratches.
Screen? Contents Color Settings Troubleshooting When the Color Mode is set to Color, you can select the color adjusting method for scanning from Recommended or Canon ColorGear (or ColorSync) Glossary Color Matching. The default setting is Recommended. • Recommended Index Reproduces the colors of the scanned item vividly on a computer display.
chapter 3 What is on the Screen? Contents Preferences (for Macintosh) Troubleshooting Click this button to display the Prefereces sheet for Macintosh. With Windows, the Preferences setting sheet is in Windows Contorol Panel. Glossary Refer to Preferences Settings section in Chapter 6. ( p.75) Index When application hides driver user interface •...
chapter 3 What is on the Screen? Contents The tone tab settings are saved when the preview area is Troubleshooting refreshed Click the check box if you want to save the tone tab settings Glossary although the preview area is refreshed by previewing a new image. Index Quit Settings •...
Troubleshooting The Tone sheet is displayed only when Color or Grayscale has been selected Glossary for Color Mode on the Advanced Mode Main sheet and when Canon Index ColorGear Color Matching / ColorSync Color Matching is not selected on the Scanner Sheet.
chapter 3 What is on the Screen? Contents Gamma button Troubleshooting Opens the Gamma sheet and allows you to shift mid-tones so lighter colors Glossary are lightened and darker colors are darkened. Index Histogram button Opens the Histogram sheet and allows you to adjust tone intensity to enhance an image that is either too light or too dark.
chapter 3 What is on the Screen? Contents Common Buttons Troubleshooting The Tone sheet settings are commonly set with the Load, Save, Reset and Glossary All Reset buttons described below. Index Load Button When Color Mode is set for Color (Photos) or Color (Documents), a user- saved file (*.adc) is opened and used for color adjustment.
chapter 3 What is on the Screen? Contents Contrast/Brightness Sheet Troubleshooting Glossary Index When the Contrast/Brightness button is clicked, the Contrast/Brightness sheet is displayed. The shape of the tone curve changes to reflect the current Contrast/ Brightness setting for the current Channel, and the image in the Preview Area changes to reflect the adjustment.
chapter 3 What is on the Screen? Contents Gamma Sheet Troubleshooting Glossary Index When the Gamma button is clicked, the Gamma sheet is displayed. Gamma refers to a process where mid-tones are shifted so that the lighter colors are lightened and darker colors are darkened. For example, let us say you scanned a photograph of a subject in a boat in a tree-lined lake and the shadows of the trees are dark enough and the white of the boat is light enough, but the blue in the sky, the blue of the water, and the blue of the...
chapter 3 What is on the Screen? Contents Gamma (Scanner Gamma) Troubleshooting Drag the Gamma slider to the left or right to set the scanner gamma value or you can type the value directly into the boxes. Entering a value into Glossary either boxes of the scanner gamma or the monitor gamma will display a respective value in the other box.
chapter 3 What is on the Screen? Contents Histogram Sheet Troubleshooting Glossary Index When the Histogram button is clicked, the Histogram sheet is displayed. Use the histogram to enhance an image when the image is either too light or too dark, like an overexposed or underexposed photograph. Increasing the darker tones with the histogram improves the contrast of the image.
chapter 3 What is on the Screen? Contents Eyedroppers (Black-point, Mid-point, White-point) Troubleshooting Click one of the three eyedroppers then click the portion of the image in the Preview Area that you want to sample, or enter values in the text boxes, Glossary or drag one of the three triangles at the bottom of the graph to adjust the value.
chapter 3 What is on the Screen? Contents Special Tone Curves Sheet Troubleshooting Glossary Index When the Special Tone Curves button is clicked, the Special Tone Curves sheet is displayed. Channel Click the down-arrow and select one of the primary colors (RGB) for adjustment or leave the setting at Master to adjust all the colors.
chapter 3 What is on the Screen? Contents Editing a Special Tone Curve Directly Troubleshooting Glossary In the Special Tone Curves graph you can edit the curve directly. Index Click on the curve and drag each curve anchor point until the desired effect is achieved.
chapter 3 What is on the Screen? Contents Troubleshooting Here are some hints for editing curves: Glossary • Curve handles are drawn on a white background as a Note red dot to signify that they are editable. When the Index cursor is over the handle, it changes to a crosshair.
chapter 3 What is on the Screen? Contents The Halftone Sheet Troubleshooting Glossary Index The Halftone sheet is displayed only when Black and White has been selected for the Color Mode on the Advanced Mode Main window. You can set only Threshold in this sheet. Halftoning Threshold Threshold determines whether portions of an original are scanned as...
chapter Contents Troubleshooting Glossary Index Scanning an Original Preparing for the Scanning Job Quick Start Previewing and Scanning an Original...
chapter 4 Scanning an Original Contents Preparing for the Scanning Job Troubleshooting Glossary These are some points you should check before you start scanning: Index • If you have not yet installed the parent software application you intend to use with the scanner and ScanGear CS-U, install the application.
chapter 4 Scanning an Original Contents Quick Start Troubleshooting Glossary Follow the procedure below if you want to get started scanning right away. The referenced page numbers provide more details about the steps below. Index If you need more information about a procedure, go to that page number. Set the original on the Scanner.
chapter 4 Scanning an Original Contents Preview the original. ( p.59, Troubleshooting Glossary Index Adjust image as required. ( p.60, Specify the scanning area. ( p.60, Scan the document. ( p.60, The image is processed. (For details, the application manual)
chapter 4 Scanning an Original Contents Previewing and Scanning an Troubleshooting Glossary Original Index You can preview and scan an image in either the Simple Mode or the Advanced Mode. This section describes both procedures. Scanning in the Simple Mode This is a brief overview of the general procedure for previewing and scanning an original in the Simple Mode.
chapter 4 Scanning an Original Contents Start ScanGear CS-U. Troubleshooting The methods for starting ScanGear CS-U vary between application Glossary programs. For example of PhotoStudio, Windows : Click the [File] menu and select [Acquire]. Index Macintosh : Click the [File] menu, [Acquire] and [ScanGear CS-U 6.2.0...]. See the respective manuals for other programs.
chapter 4 Scanning an Original Contents Click the down-arrow for Image Type and select a setting from the Troubleshooting drop-down list. ( p.24) Glossary Your selection automatically sets the mode for the Index scanning job. Note Review the settings you see below the Image Type selection (Color Mode, Resolution, Paper Size, Width, Height, Size).
chapter 4 Scanning an Original Contents Click the Preview button to pre-scan the image and display it in the Troubleshooting Preview Area. Glossary Index Zoomed Preview Although the zoom button can be used to zoom in on the image in the preview area, the zoomed image will appear Note coarse and it may not be possible to make fine selections or adjust image settings.
chapter 4 Scanning an Original Contents Click a button in the Toolbar ( p.20) to manipulate the image. Troubleshooting Glossary You can click the Auto Tone button ( p.29) to have ScanGear CS-U automatically adjust the color tones of the Index scanned image.
chapter 4 Scanning an Oliginal Contents Scanning in the Advanced Mode Troubleshooting Glossary This is a brief overview of the general procedure for previewing and scanning an original in the Advanced Mode. Index Place the original on the scanner. For details about positioning the original on the scanner, see your scanner user's manual.
chapter 4 Scanning an Original Contents The ScanGear CS-U main window opens. Troubleshooting Glossary Index If the Simple Mode main window appears, click the Advanced Mode button. In the Main sheet adjust the settings for the Color Mode, Output Resolution, Selection (Width and Height), and Print Size (Width and Height, or Scale).
chapter 4 Scanning an Original Contents In the Scanner sheet, specify a variety of settings for operation of the Troubleshooting scanner. ( p.34) Glossary Click the Preview button to pre-scan the image and display it in the Index Preview Area. Zoomed Preview Although the zoom button can be used to zoom in on the image in the preview area, the zoomed image will appear...
chapter 4 Scanning an Original Contents Click a button in the Toolbar ( p.20) to manipulate the image. Troubleshooting Glossary Adjust the image quality with the tools and options provided on the Tone ( p.40) or Halftone ( p.51) sheet. Index Specify the scanning area.
chapter 5 Multi-Photo Mode Contents Multi-Photo Mode Troubleshooting Glossary Multi-Photo Mode is a function used when scanning more than 2 photos with a single operation, and makes the scanned images appear individually Index in a new window. If you place the photo obliquely, this function will make the adjustment automatically.
chapter 5 Multi-Photo Mode Contents After pre-scanning, cropping and scanning are performed Troubleshooting automatically the same number times with the number of photos. During these procedures, do not open the document cover. When the Glossary Multi-Photo Mode scanning is finished, the ScanGear CS-U main Index window appears.
chapter 5 Multi-Photo Mode Contents Placing the Photos Troubleshooting With the Multi-Photo Mode function, the gap between photos is detected Glossary using the rear white background of the document cover. Index When you place the photos on the platen, note the followings; •...
chapter Contents Troubleshooting Glossary Index Settings in the Windows Control Panel (Windows only) Opening Scanners and Cameras Properties General Settings Events Settings Preferences Settings Color Management Settings...
chapter 6 Preferences Settings Contents Opening Scanners and Cameras Troubleshooting Glossary Properties Index You can specify some settings for ScanGear CS-U with using Scanners and Cameras properties in Windows Control Panel. Scanners and Cameras Properties dialog can be opened with the following procedures.
chapter 6 Preferences Settings Contents In the Properties window, click the appropriate tab (General, Events, Troubleshooting Preferences or Color Management) to open the respective sheet. Glossary Index Confirm that the settings are apropriate. Otherwise make changes as necessary. After the changes are made, click the Apply button to validate the changes.
chapter 6 Preferences Settings Contents General Settings Troubleshooting Glossary The General sheet provides details the name of the connected scanner, its current status, and a button for diagnostic testing. Index Test Scanner or Camera Follow the procedure below to execute the scanner diagnostic test. Click the Test Scanner or Camera button.
chapter 6 Preferences Settings Contents Events Settings Troubleshooting Glossary The Event sheet allows you to select the software application that you want to start when you press the Scanner buttons on the scanner. Index Scanner events Select one of the Scanner buttons. CanoScan COPY Button, CanoScan E-MAIL Button or CanoScan SCAN Button.
chapter 6 Preferences Settings Contents Disable device events Troubleshooting Click this check box off to disable this feature. Clicking this check box off disables the Start button on the scanner (nothing will happen if the button Glossary is pressed). Index The settings will become effective for the button for which the scanner events have been selected.
chapter 6 Preferences Settings Contents Preferences Settings Troubleshooting Glossary The Preferences sheet allows you to select the action of previewing and scanning. Index When application hides the driver user interface Some application softwares such as an OCR software will not display the ScanGear CS-U main window while scanning.
chapter 6 Preferences Settings Contents Preview at opening of ScanGear CS-U Troubleshooting The preview opening settings determine what is displayed in the Preview Area every time ScanGear CS-U is launched from the parent software Glossary application. •Automatically execute a preview Index This setting switches the automatic preview feature on.
The Color Management sheet allows you to add or remove basic profiles for Canon ColorGear Color Matching. Index • Click the Canon ColorGear Color Matching check box on in the Preferences sheet. • The sRGB Color Space Profile is added automatically when ScanGear CS-U is installed.
chapter 7 Uninstalling ScanGear CS-U Contents Uninstalling ScanGear CS-U Troubleshooting Glossary • Always uninstall ScanGear CS-U with this procedure Index using the CanoScan Setup Utility CD-ROM • Make sure the scanner is connected to the computer. Note Place the CanoScan Setup Utility CD-ROM in the drive. Click [Uninstall the Software] in the CD-ROM’s menu window.
chapter 8 Troubleshooting Contents Pre-Scan Checklist Troubleshooting Glossary Perform the checks on this short list before you begin troubleshooting specific problems. Index • Make sure that the ScanGear CS-U software was installed successfully. • Confirm that the cables between your computer and scanner are connected securely.
chapter 8 Troubleshooting Contents How to Avoid Problems Troubleshooting Glossary Here is some general advice on avoiding problems in your scanning jobs: Index • Start with the best possible original image to scan. • Select only the part of the image you want to scan. Preview the image and select it with the Crop and Auto Crop buttons.
chapter 8 Troubleshooting Contents • If you are using OCR software, scan in Text Enhanced mode or Black Troubleshooting and White mode at 300 dpi or higher. Glossary • Take advantage of the preview feature and preview as much as you Index want before scanning.
chapter 8 Troubleshooting Contents Troubleshooting Checklist Troubleshooting Glossary Index ScanGear CS-U does not launch. Problem: ScanGear CS-U does not launch within the apllication software. Cause1: The scanner may not be connected correctly. Solution: Make sure the scanner is properly connected to your computer before you turn on the computer.
chapter 8 Troubleshooting Contents Some buttons are grayed-out. Troubleshooting Problem: Some buttons are grayed-out and not available. Glossary Cause: Some functions are not available until an image has been previewed. Index Solution: Preview an image. Scanning is too slow. Problem: The scanner is taking an unusually long time to print or scan.
chapter 8 Troubleshooting Contents Windows 2000: Troubleshooting (1) Right-click the [My Computer] icon on the Windows desktop. Glossary (2) Click the [Hardware] tab and click [Device Manager] Index button. (3) Click on the [+] on the left of [IDE ATA/ATAPI Controllers].
chapter 8 Troubleshooting Contents The scanner diagnostics test fails. Troubleshooting Problem: The Scanner Diagnostics test ( p.72) returns a Test Failed Glossary message. Cause: The scanning unit may not be in its home position. Index Solution: Close the ScanGear CS-U window if it is open. Try turning the scanner off and back on again by unplugging and plugging in the USB cable.
The toner of the printer is going short. Solution: Confirm the toner of the printer. Cause2: Canon ColorGear / ColorSync Color Matching may have not been selected when it was necessary. Solution: Check that Canon ColorGear / ColorSync Color Matching is selected on the Preferences sheet.
chapter 8 Troubleshooting Contents Image is too light or too dark compared to the original. Troubleshooting Problem: Scanned or printed image is much lighter or darker than the Glossary original. Cause: Image and color adjustments may not have been set properly. Index Solution: The best solution is to scan the image using all default...
Contents Troubleshooting Glossary Index Glossary...
Glossary Contents Acquired Images Troubleshooting Images sent from your scanner software to the host graphics application. Glossary Auto Crop After you select an area of the screen by clicking the Crop button and Index dragging a rectangle around the object or text you want to crop, click the Auto Crop button to size the rectangle exactly to the size of the object or block of text enclosed in the rectangle.
(monitor), to yield the most accurate color image. Canon ImageTrust (Windows) Canon's process of converting grayscale image (8 bits per pixel) to a black and white image (1 bit per pixel) to yield a more effective scan for optical character recognition (OCR) applications.
The range of colors your scanner can see may not match the range of colors your video monitor can produce. Color matching lets your system display colors so that the color on your monitor and printer matches the colors scanned. See also Canon ColorGear Color Matching and ColorSync Color Matching. Color Mode The type of scan used to scan an image, differentiated by the number of bits per pixel.
Glossary Contents Crop Troubleshooting The action of selecting part of an image. The Crop button on the ScanGear CS-U main window lets you select part of a preview image and re-preview Glossary or scan only that selected part. Index Curve chart The graph displayed in the Tone tab settings for the Auto Tone, Contrast/ Brightness, Gamma, Histogram, and Special Tone Curves features.
Glossary Contents End points Troubleshooting The points at each end of a preset or custom tone curve. The curve end points cannot be deleted. If they are dragged to or past an edge, they Glossary remain on the edge. Add points to the curve by clicking anywhere in the curve box.
Glossary Contents Grayscale Troubleshooting Grayscale refers to a single-channel image made up of 256 shades of gray, ranging from white to black, that represent all tones in an image. Glossary Halftoning Index A method of simulating intermediate tones in black-and-white images by varying the patterns dots and lines.
Glossary Contents Mid-point Troubleshooting The mid-tone portion of the image scanned as Color or Grayscale. When you click on the image with the Mid-point eyedropper, all tones between Glossary the black-point and white-point are adjusted in relation to the mid-point setting.
Glossary Contents Output size Troubleshooting The size of the acquired image, calculated by multiplying the width and height by the scale percentage. Glossary Overexposed Index An image that was exposed to too much light while it was being photographed. Pixel An acronym for "picture element,"...
Glossary Contents Preview image cache Troubleshooting When the preview image cache feature is switched on, the image in the Preview Area from the previous session with ScanGear CS-U is saved and Glossary displayed the next time ScanGear CS-U is launched from the parent software application.
Glossary Contents Scale Troubleshooting The Scale setting lets you specify an output size for the selected image as a percent of the original width and height. Glossary Scan button Index Clicking the Scan button scans the original and sends it to the host software application.
When Text Enhanced is selected for the Color Mode, images are scanned as Glossary Grayscale (8 bits per pixel) and converted to Black and White (1 bit per pixel) using Canon ImageTrust processing software. Index This mode is not supported with Macintosh Version.
Glossary Contents TWAIN Troubleshooting TWAIN refers to an industry standard for transferring information from devices (such as a scanner or digital camera) to your computer. One Glossary interpretation of the acronym is "Technology Without An Interesting Name." Index Underexposed A dark photographic image that was exposed to too little light when it was photographed.
Glossary Contents X and Y Axes Troubleshooting The X and Y axes on the Tone sheet curve chart represent, respectively, the input image color and output image color. Glossary Zooming Index Enlarging an image or a selected part of the image in the preview window or in a graphics application.
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