SHSU Technology Tutorials | Scanner Software
All About the Scanners
The computer labs acrosscampus each have at least one scanner. Those scanners are the HP ScanJet 6200C. The scanners on campus are capable of scanning documents and pictures, and outputting them in either text or image formats. For picture formats, you can scan output pictures in black and white, true color, grayscale and 256 color. We will talk about these options and show examples later.
Opening HP PrecisionScan Pro
To open PrecisionScan Pro, click on your Start Menu. Click on All Programs and select HP ScanJet Software. Then, click on HP PrecisionScan Pro.
Scanning the Document
To scan, place the document/picture on the scanner glass face-down. To scan the object correctly, place the top of the object towards the top of the scanner glass. That way it will right-side up and not upside down. One way to scan is by clicking the Preview Scan button on the toolbar (1). A message should appear saying “Warming up the lamp”, but only if the scanner has not been used in some time.
Another way to start scanning an object is to is to choose Preview from the Scan menu. Also pressing Ctrl + R will bring up the preview.
Here’s an example of what the screen will look like once you select preview.
Saving an Image
When it comes to saving images, there are several steps that you must go through. You’ll need to select the area you want to save, choose the output type and change different image settings.
Selecting the Area You want to Save
To select an area you want to save, place your cursor on the preview of your scanned object. The cursor should turn into a “+” sign. Place your cursor on the corner of the object’s area you want to save. Hold down your left mouse button and draw a box around the object’s area. A dashed line should then appear around the area you selected.
You can resize the box by holding and dragging the little black boxes on the edges, and moving them to reach your desired size.
Selecting the Output Type
There are four options when it comes to saving pictures:
True Color: Use True Color when the original contains colors and you plan on printing through a color printer. To find the True Color option, click on Output Type and select True Color.
Grayscale: Use grayscale when picture is black and white, when the picture is color and you plan on printing on a black and white printer, and the original picture has shades of gray. To activate Grayscale, click on Output Type and select Grayscale.
Black & White (Bitmap): This should be used if the resulting picture will not be scaled in another program.
Black & White (Scalable): This should be used if the remaining picture will be scaled in another program.
- 256 Color options are used for displaying on a monitor.
- 256 Color (Web Palette): Used to display color images on the internet.
- 256 Color (System Palette): Used to change the color original to a color image suitable for displaying on a monitor.
- 256 Color (Optimized Palette): Better recommended for images being in a sort of presentation; not recommended for Web pages or Desktop wallpaper.
Examples of Image Output Types
BLACK & WHITE (RASTER)
BLACK & WHITE (VECTOR)
256 COLOR (WEB PALETTE)
256 COLOR (SYSTEM PALETTE)
256 COLOR (OPTIMIZED PALETTE)
Other Image Settings
Resolution deals with how clear a picture prints out and/or is displayed on your monitor. To change the resolution of the image, select Output Resolution from the Tools menu (1). Then from the Output Resolution box, select the resolution you want. The higher the resolution, the larger the file will be.
Sharpening is used to enhance low-resolution pictures and bring out finer details of the picture. To change the sharpen level, choose Sharpen Level from the Tools menu (1). Then choose the sharpen level you want from the different levels in the Sharpen Level box (2).
Instead of manually setting the size of the selection area, you can use the Dimensions tool to enter the dimensions. To use this option, select Dimensions from the Tools menu (1). Then manually enter the dimensions of the selection area (2). Then click the close button when finished. The dimensions should then appear in the bottom left corner (3).
You can use exposure adjustment to make changes to specific properties of an image. Some properties include:
- Highlights: the lightest part of an image.
- Midtones: the overall brightness of the image.
- Shadows: the darkest parts of the image.
- The amount of detail in very light or dark areas.
To edit the Exposure Adjustment, choose Exposure Adjustment from the Tools menu (1). Then, adjust the knobs for the different properties on the Exposure Adjustment box (2). Once you are done, click the Close button inside that box.
Through the color adjustment option, you can change the intensity of a color (the saturation) or the amount of a particular color in a color image (the hue). To change either of these options, select Color Adjustment from the Tools menu. To change the saturation, select the area you want to edit. Then move the saturation button on the saturation scale (2). The saturation scale ranges from 0 to 150. “0” means that no color will show up. “150” means the colors will be more intense. On the next page, there will be an example of a color image with saturation at 0 and 150.
Saturation at 0
Saturation at 150
To change the hue, you can move the white circle in the color pie towards which color you want to be more emphasized. Just drag the white dot towards the color you want to have more emphasized. You can also use the x and y coordinates box to move the white dot. Just type in the coordinates of where you want the dot to be placed and it will automatically move the dot to where you chose.
These are examples of images that have had their emphasized color changed. The photo on the left has a emphasis on red, the center photo has an emphasis on blue, and the right one has an emphasis on yellow.
Black and White Threshold
The Black & White Threshold tool is used for a black and white image to set the level at which gray is changed to black. Gray levels below the threshold become white. To change this property, select B & W Threshold from the Tools menu (1). By using the knob on the Black & White Threshold, you can adjust the point where gray is changed to black (2). Just move it to where you would like the transition to take place.
Saving An Image
To save the image, choose Save As from the Scan menu. Then, choose what kind of image you want it to be saved as (JPEG, GIF, BMP, etc.). When you are done, click the Save button.
Scanning and Saving Text
Place your document in the scanner and click on the Preview button.
Once the document appears on your screen, draw a box around the area you want to scan.
Click on Output Type button and select Editable Text (OCR) from the pull-down menu.
When it has finished scanning your document, click on the Scan menu and select Save As.
Then choose which kind of text file you want to save yours as. You can either choose PDF, TXT, HTML or a Rich Text File.
Once you save the file, it will scan the page to be saved. It will then ask if you want to scan another page into the same document. Either choose Scan to scan another page or Done to finish the scan.