Answers

• divkrishna Members

  January 2014 edited January 2014

  Thanks,
  
  I have another question that once i compare images then it will be in form of image(compare.jpg) , so how will i use _readfile to read the image?
  
  Awaiting for your reply.
  
  Thanks,
  Krishna
• globalworming Moderators

  February 2014 edited February 2014

  Your compare.jpeg colors red all differences in the 2 compared images. So you need o check for the amount (or existance) of red in the images.
  Check for red:
  Write the output from from imagemagick into a file

  identify -verbose compare.jpg
  

  _readFile the file and check the channal statistics if reds mean is like above 50%
  
  and/or
  
  Write the result from

  compare -channel red -metric PSNR assertImage.png existsImage.png  compare.png 
  

  into a file. If

  _readFile() == "inf"
  

  then there is no difference in the picures.
  
  @see all from http://www.imagemagick.org/script/compare.php
  Add imagemagick to Sahi: http://im4java.sourceforge.net/api/
  
  Or maybe you could just let an _execute() fail. Like when execution of compare not returns "inf" fail with exit status and wrap this _execute in a try-catch-block.
• Nana111 Members

  February 2014

  HI there
  I have never tried to compare two images through Sahi.I want to know that if there is any image tool which supports to do that directly.I have tried another image tool:
  http://www.rasteredge.com/how-to/csharp-imaging/
  But it said that they can not work with Sahi.Thanks for any suggestions.
• globalworming Moderators

  February 2014

  There is no "direct through Sahi" as far as I know. But as I said you can include Imagemagick in Sahi to provide image comparison via Sahi Api.
• Nana111 Members

  February 2014

  Thanks for your nice sharing.I'll have a try