Ns jpegsize
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Man page: http://aolserver.com/docs/tcl/ns_jpegsize.html
NAME
ns_jpegsize - Determine the width and height of a JPEG image.
SYNOPSIS
ns_jpegsize filename
DESCRIPTION
Returns a list of two elements, the width and height of the JPEG file specified by filename. An error is generated if the file does not exist or if it is not a JPEG file.
EXAMPLES
% ns_jpegsize screenshot.jpg 1024 768
% ns_jpegsize test.html invalid jpeg file: test.html
SEE ALSO
ns_gifsize, the nsimage module