CEEn 414 - Civil Engineering Applications of GIS

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Image Capturing

  • PC's


Capturing images on PC's

The following procedure is an efficient means for capturing anything on your screen and converting it to an image using any image processing software (e.g. Paint Shop Pro, Adobe Photoshop, Corel Photo House,...etc).  Some of these software packages can be found on CAEDM by looking under Programs \ Graphics from the Start Menu. 

Method A:

A quick and easy way of capturing an image of your screen is by using Print Screen. Along with combinations of "Ctrl", "Shift" and the "Alt" keys you can conveniently capture the object of your interests in your screen. And with little cropping, you can even customize your image to a sub-image. Here are some quick steps:

  1. Prepare the image that you want to capture.

  2. Press "Ctrl" + "Alt" + "Print Scrn - SysRq" button on your keyboard. This will copy the window of the entire application in which you prepared your image in (see the following image) to the Clipboard.

  1. Open any image processor (even Paint) and "Paste" the capture there. (by pressing "Ctrl" + "V" in a new document)

  2. You can modify the image the way you want. Some modifications involve cropping the image to screen out some unwanted parts of the image like the collars. (see the following image)

  1. Save the image after your modifications to the desired location.

If you just use "Print Scrn - SysRq" button on your kepboard, it'll copy a live capture of your screen as is with all programs/windows open. not just the current application (see the following image).

Yet, you can still crop the image to the application you wanted as illustrated later or just get the current application as illustrated above.

Method B:

If you're planning on using Paint Shop Pro, for more customized capture, you can follow these steps.

  1. Prepare the image that you want to capture.

  2. Select the Capture heading from the Paint Shop Pro drop down menu.

  3. Select the Setup option to open the Capture Setup dialog box.

  4. Choose your desired capture type: Area uses a selection window to designate the desired capture area, Full Screen selects everything visible on the screen at the time of the capture, Window selects only those objects contained within the chosen window or frame (for applications like WMS which operate in multiple frames).

  5. Choose your desired method for activating the image capture.  The hot key option is useful for situations where left mouse button is reserved for use within the program where the screen capture is to be performed.  This is generally not a problem when capturing images within WMS.

  6. Select OK to close the Capture Setup dialog box. note: once the setup has been performed, screen captures can be performed by following steps 7-13.

  7. Select the Capture heading from the Paint Shop Pro drop down menu.

  8. Select the Start option to capture the image.  Once the start option has been selected, Paint Shop Pro will automatically minimize and the previously viewed application will be maximized.

  9. Press the left mouse button or the hot key once to activate the screen capture sequence.  note: if the Full Screen option was selected in step 4, pressing the right mouse button or the hot key will capture the screen with this single step.

  10. If the Area option was selected in step 4, position the cursor at the desired start point and click the left mouse button once to open the selection window and then again to close the window when the desired area has been enclosed. 

  11. If the Window option was selected in step 4, position the cursor within the desired frame and click the left mouse button once to capture the frame.

  12. Once the capture area has been defined, using any one of the three methods outlined above, Paint Shop Pro will maximize automatically and the captured image will appear in a new window.

  13. To save the new image, select Save As from the File drop down menu.  Give the file a name and choose an image format.  It is suggested that all captured images be saved under the .jpeg format.

Method C:

If Paint Shop Pro is not available the following procedure may be followed to perform screen captures: 

The following procedure is good for capturing anything on your screen as an image.   It involves a little bit of editing, but is very simple if you follow this procedure.  The images that are on this page were captured using this procedure.

  1. Prepare the image that you want to capture.

  2. Select the Print Scrn|SysRq key on your keyboard (it is right next to the F12 key).  This will print whatever is on your screen to the clipboard.

  3. Open Adobe Photoshop.

  4. Select New from the File menu.

  5. In the resulting dialog, make sure that the image width is 1024 pixels and height is 768 pixels.  Your dialog should look similar to Figure 1.


Figure 1     New image dialog in Adobe Photoshop.
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  1. Select the OK button.

  2. Select Paste from the Edit menu.  (HINT:  If the paste option is dimmed or the image that is pasted is a previous image that you have captured with the Print Scrn|SysRq key, then close Adobe Photoshop and return to step 3.   Adobe Photoshop sometimes doesn't import the clipboard correctly.  Closing it and reopening it forces it to import the clipboard.)

  3. The scale of your pasted image will be 66.7%.  You may want to zoom to 100% to see your image in its actual resolution.  This can be done by selecting the zoom tool and clicking once on your image.  To zoom back out, right click on your image with the zoom tool and select Zoom Out.

  4. Select the tool and drag a box around the desired portion of your image.

  5. Select Crop from the Image menu.

  6. Select Save a Copy from the File menu.  For color images it is best to save as a jpeg file.  The other save options you have (Save and Save as) force you to save the image as an Adobe Photoshop image instead of a jpeg, tif, or gif.

  7. In the resulting dialog select the JPEG (*.JPG,*.JPE) option in the Save As field.

  8. Enter the desired name and location of your image and select the Save button.