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Posted By

hasantayyar on 08/31/09


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phpgdimage


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hasantayyar
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Image Manipulation with PHP and the GD Library

 / Published in: PHP
 

URL: http://davidwalsh.name/php-image-filter

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  1. //to black and white
  2. if(!file_exists('dw-bw.png')) {
  3. 	$img = imagecreatefrompng('dw-manipulate-me.png');
  4. 	imagefilter($img,IMG_FILTER_GRAYSCALE);
  5. 	imagepng($img,'db-bw.png');
  6. 	imagedestroy($img);
  7. }
  8.  
  9. //to negative
  10. if(!file_exists('dw-negative.png')) {
  11. 	$img = imagecreatefrompng('dw-manipulate-me.png');
  12. 	imagefilter($img,IMG_FILTER_NEGATE);
  13. 	imagepng($img,'db-negative.png');
  14. 	imagedestroy($img);
  15. }
  16.  
  17.  
  18. //to Sepia
  19. if(!file_exists('dw-sepia.png')) {
  20. 	$img = imagecreatefrompng('dw-manipulate-me.png');
  21. 	imagefilter($img,IMG_FILTER_GRAYSCALE);
  22. 	imagefilter($img,IMG_FILTER_COLORIZE,100,50,0);
  23. 	imagepng($img,'db-sepia.png');
  24. 	imagedestroy($img);
  25. }

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