You can experiment with different images using any of the images
supplied in HIPR or by a URL. Some of those available in HIPR
have the prefixes given here and .gif as the file extension:
grayscale (cam1, che1, cln1, fru1, man8, str1, str2, str3, tol1,
txt2, wal2, wom1, wom2, urb1, xra1)
and range (bae1, fac1, phn2, ren1, ren2, ufo1, ufo2, ufo3)
Enter image specifiers (into the edit box at the top of the
screen) either as a full HIPR image filename
(eg. cam1.gif) or by a full URL. Only gif files can
be loaded. Because of JAVA security, the URL should refer to
a publically accessible place, such as your public_html directory.
Pushing the Load Image button or pushing "Return" on the keyboard
causes the specified image to be
The input image is displayed in the Input display area
below the control buttons, along with the image size.
Image arithmetic may produce
images with values less than 0 or greater than 255. These values are
clipped to 0 and 255, but Scaling and Offset values can be entered to
allow you to rescale the images yourself before the clipping
takes place, according to Output = Scaling*Input + Offset.
Edge detector output may produce small values.
You can use the scale factor to enhance the visibility.
You can find out about known problems with the system