Current Buffer: 0
which may be incremented or decremented at any time, whether in
Live
or
UnLive
mode. The window reached by clicking:
Capture
Adjustments
has convenient buttons which duplicate the
Snap
,
Live
, and
UnLive
features.
As three of the most commonly used operations, the
Snap
,
Live
, and
UnLive
are also available in the Shortcuts Toolbar, in the top
row, at the fifth and sixth from the left. The Shortcuts also allow changing the current frame buffer; in the top row, the four icons
at the left switch to the first frame buffer, the next frame buffer (e.g. current 1), the previous frame buffer (e.g. current
buffer -1), and the last frame buffer, respectively.
4.5. Examining Images
4.5.1. Altering How the Image is Displayed
The PIXCI Image Viewer can be moved and resized, using standard Windows techniques (drag the window's title bar, drag the
window's corner, etc). By default, the captured image is displayed with resizing, so that the entire image fits within the Image
Viewer.
For many engineering applications, examination of individual pixel values is critically important. Resizing the image may ''hide''
defective pixels; resizing an image with interlace jitter may turn odd/even line striping into bars of striping.
To view the exact pixels, from the PIXCI® Image Viewer, click:
View
Display
Resize: None (1 to 1)
Each image pixel is now displayed as exactly one S/VGA pixel. Of course, depending upon the image resolution, S/VGA
resolution, and window size, the entire image may not fit. If the image doesn't fit, then (a) Scroll bars appear, allowing the viewed
portion of the image to be panned and scrolled throughout the entire image, and (b) Moving the mouse with right button held over
the displayed image causes panning or scrolling (if there is more image to be seen in the direction the mouse is moving).
Note that when:
Resize: None (1 to 1)
is selected, the displayed image's aspect ratio may not appear correct; the aspect ratio can't be corrected without some form of
resizing or resampling!
4.5.2. Zoom
To magnify the image, from the PIXCI® Image Viewer, click:
View
Zoom, Pan, Scroll
Zoom On
The magnification factor can be adjusted with:
Zoom Ratio
When magnified, only a portion of the image is visible. As described above, the viewed portion may be panned and scrolled
through the entire image with the scroll bars, or by moving the mouse over the image with right button held.
4.5.3. Numeric Pixel Values
To examine numeric values of pixels as a table, from the PIXCI® Image Viewer, click:
Examine
Pixel Peek
A table of pixel values for a portion of the image appears, showing pixel values in the neighborhood of the displayed X and Y
coordinates. The portion of the image numerically displayed can be moved by using the scroll bars, or by entering new X and Y
coordinates.
The portion of the image which is numerically displayed can also be moved interactively by clicking:
PIXCI® SV4 User's Manual
http://www.epixinc.com/manuals/pixci_sv4/index.htm
22 of 50
1/29/2016 11:23 AM
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
