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Flipping images on your web page

Are you seeing this picture the right way up, or upside down?



If you're seeing it the right way up, you're using Mozilla, Firefox, Safari, Netscape or almost any other browser ... except Internet Explorer. With Internet Explorer, it might be up side down!

This is no "failure" on the part of some versions of Internet Explorer - it's just that the img tag in Internet Explorer allows style="Filter:FlipV" to flip an image vertical, whereas that tag isn't defined for other browser. Best avoid it, I think!

I came across a need to flip an image the other day ... which is why my research lead me to that discovery; in most situations, I would simply have used Photoshop to invert the image but as the image in question was a dynamic feed from a webcam, that option wasn't open to me.

Let's see what I can do ...



Yep, that's better (and, yes, PHP again ;-) source code )

and Yet more pictures!
(written 2008-01-26, updated 2008-05-10)

 
Associated topics are indexed as below, or enter http://melksh.am/nnnn for individual articles
H999 - Additional PHP Material
  [3210] Catchable fatal error in PHP ... How to catch, and alternative solutions such as JSON - (2011-03-22)
  [3118] Arrays of arrays - or 2D arrays. How to program tables. - (2011-01-02)
  [2684] Exception handling in PHP - (2010-03-18)
  [2215] If nothing, make it nothing. - (2009-06-02)
  [2073] Extra PHP Examples - (2009-03-09)
  [1623] PHP Techniques - a workshop - (2008-04-26)
  [1505] Script to present commonly used images - PHP - (2008-01-13)
  [1485] Copyright and theft of images, bandwidth and members. - (2007-12-26)
  [1451] More PHP sample and demonstration programs - (2007-12-01)
  [1391] Ordnance Survey Grid Reference to Latitude / Longitude - (2007-10-14)
  [1390] Converting from postal address to latitude / longitude - (2007-10-13)
  [1389] Controlling and labelling Google maps via PHP - (2007-10-13)
  [1270] PHP Standalone - keyboard to screen - (2007-07-18)
  [1194] Drawing hands on a clock face - PHP - (2007-05-19)
  [1104] Drawing dynamic graphs in PHP - (2007-03-09)
  [1053] Sorting people by name in PHP - (2007-01-26)
  [1020] Parallel processing in PHP - (2007-01-03)
  [1010] Dates, times, clickable diarys in PHP - (2006-12-28)
  [937] Display an image from a MySQL database in a web page via PHP - (2006-11-22)
  [917] Syntax checking in PHP - (2006-11-07)
  [839] Reporting on the 10 largest files or 10 top scores - (2006-08-20)
  [822] PHP - a team member leaves - (2006-08-04)
  [806] Check your user is human. Have him retype a word in a graphic - (2006-07-17)
  [789] Hot answers in PHP - (2006-07-02)
  [687] Presentation, Business and Persistence layers in Perl and PHP - (2006-04-17)
  [665] PHP Image viewing application - (2006-04-01)
  [603] PHP - setting sort order with an associative array - (2006-02-13)
  [563] Merging pictures using PHP and GD - (2006-01-13)
  [493] Running a Perl script within a PHP page - (2005-11-12)
  [483] Double Dollars in PHP - (2005-11-02)
  [468] Stand alone PHP programs - (2005-10-18)
  [372] Time calculation in PHP - (2005-07-08)
  [337] the array returned by preg_match_all - (2005-06-06)
  [322] More maps - (2005-05-23)
  [320] Ordnance Survey - using a 'Get a map' - (2005-05-22)
  [239] What and why for the epoch - (2005-03-08)
  [54] PHP and natural sorting - (2004-09-19)

W508 - Web and Intranet - Which Browser?
  [3128] How does your browser find out about itself? - (2011-01-11)
  [2135] What features does this visitors browser support? (PHP) - (2009-04-22)

W509 - Web and Intranet - Style
  [2223] CSS Style Diagrams - working out where attributes come from - (2009-06-08)
  [1034] The new web site look spreads - (2007-01-15)
  [1019] span and div tags - a css comparison - (2007-01-02)


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Flipping images on your web page
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This is a page archived from The Horse's Mouth at http://www.wellho.net/horse/ - the diary and writings of Graham Ellis. Every attempt was made to provide current information at the time the page was written, but things do move forward in our business - new software releases, price changes, new techniques. Please check back via our main site for current courses, prices, versions, etc - any mention of a price in "The Horse's Mouth" cannot be taken as an offer to supply at that price.

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