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• ∞ scale and crop an image to best fit a defined set of dimensions

  function autoCrop($file, $height, $width){
  
       //load the image file
  
       $img = false;
  
       $img = imagecreatefromjpeg($file);
  
       //quit if not loaded
  
       if(!$img){
  
            return false;
  
       }
  
       //get the image dimensions
  
       $curr = @getimagesize($file);
  
   
       $perc_w = $width / $curr[0];
  
       $perc_h = $height / $curr[1];
  
   
  
       if(($width > $curr[0]) || ($height > $curr[1])){
  
            return;
  
       }
  
   
  
       if($perc_h > $perc_w){
  
            //taller
  
            $width = $width;
  
            $height = round($curr[1] * $perc_w);
  
       } else {
  
            //wider
  
            $height = $height;
  
            $width = round($curr[0] * $perc_h);
  
       }
  
       //output
  
       $nwimg = imagecreatetruecolor($width, $height);
  
       imagecopyresampled($nwimg, $img, 0, 0, 0, 0, $width, $height, $curr[0], $curr[1]);
  
       imagejpeg($nwimg, $file);
  
   
  
       imagedestroy($nwimg);
  
       imagedestroy($img);
  
   
  
  }

  php

  1

  scale and crop an image to best fit a defined set of dimensions

  function autoCrop($file, $height, $width){
  
       //load the image file
  
       $img = false;
  
       $img = imagecreatefromjpeg($file);
  
       //quit if not loaded
  
       if(!$img){
  
            return false;
  
       }
  
       //get the image dimensions
  
       $curr = @getimagesize($file);
  
   
       $perc_w = $width / $curr[0];
  
       $perc_h = $height / $curr[1];
  
   
  
       if(($width > $curr[0]) || ($height > $curr[1])){
  
            return;
  
       }
  
   
  
       if($perc_h > $perc_w){
  
            //taller
  
            $width = $width;
  
            $height = round($curr[1] * $perc_w);
  
       } else {
  
            //wider
  
            $height = $height;
  
            $width = round($curr[0] * $perc_h);
  
       }
  
       //output
  
       $nwimg = imagecreatetruecolor($width, $height);
  
       imagecopyresampled($nwimg, $img, 0, 0, 0, 0, $width, $height, $curr[0], $curr[1]);
  
       imagejpeg($nwimg, $file);
  
   
  
       imagedestroy($nwimg);
  
       imagedestroy($img);
  
   
  
  }
  

  copy | embed

  0 comments - tagged in 
  • bestfit, 
  • crop, 
  • gd, 
  • php, 
  • resize
  posted by damonky on Jul 24, 2009 at 4:28 a.m. EDT

A good read

damonky's tags

• bestfit (1)
• crop (1)
• gd (1)
• php (1)
• resize (1)