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• ∞ Function to resize a JPEG image

  <?php
    function resize_image($original_image_file_name, $resized_image_file_name, $width, $height, $quality)
    {
      $new_image = imagecreatetruecolor($width, $height);
      $src_image = imagecreatefromjpeg($original_image_file_name);
  
      imagecopyresized($new_image, $src_image, 0, 0, 0, 0, $width, $height, imagesx($src_image), imagesy($src_image));
      imagejpeg($new_image, $resized_image_file_name, $quality);
  
      return $resized_image_file_name;
    }
  ?>

  php

  1

  Function to resize a JPEG image

  <?php
    function resize_image($original_image_file_name, $resized_image_file_name, $width, $height, $quality)
    {
      $new_image = imagecreatetruecolor($width, $height);
      $src_image = imagecreatefromjpeg($original_image_file_name);
  
      imagecopyresized($new_image, $src_image, 0, 0, 0, 0, $width, $height, imagesx($src_image), imagesy($src_image));
      imagejpeg($new_image, $resized_image_file_name, $quality);
  
      return $resized_image_file_name;
    }
  ?>
  

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  0 comments - tagged in 
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  • resize
  posted by d1s4st3r on Nov 03, 2009 at 4:38 a.m. EST

• ∞ Bulk resize a set of JPEG images

  # The following packages are needed for this to work:
  # djpeg (libjpeg-progs)
  # cjpeg (libjpeg-progs)
  # netpbm
  
  ls *.jpg | while read F; do echo "Shrinking $F"; djpeg $F | pnmscale 0.63 | cjpeg -quality 100 > small/$F; done
  
  # Another way to perform the same operation is this (original files will be overwritten):
  ls *.jpg | while read F; do echo "Shrinking $F"; mogrify -resize 63% $F; done

  bash

  1

  Bulk resize a set of JPEG images

  # The following packages are needed for this to work:
  # djpeg (libjpeg-progs)
  # cjpeg (libjpeg-progs)
  # netpbm
  
  ls *.jpg | while read F; do echo "Shrinking $F"; djpeg $F | pnmscale 0.63 | cjpeg -quality 100 > small/$F; done
  
  # Another way to perform the same operation is this (original files will be overwritten):
  ls *.jpg | while read F; do echo "Shrinking $F"; mogrify -resize 63% $F; done
  

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  0 comments - tagged in 
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  • djpeg, 
  • images, 
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  posted by d1s4st3r on Aug 24, 2009 at 3:21 p.m. EDT

• ∞ Automatically resize an image to max width/height and keep aspect ratio.

          $image = "directory/imagename.ext"; // Location/name of image
          $max_width = "250"; // Max width to display image
          $max_height = "250"; // Max height to display image
           
          list($width, $height) = getimagesize($image);
          $scale = min($max_width/$width, $max_height/$height);
           
          if ($scale < '1') {
              $scale_width = floor($scale * $width);
              $scale_height = floor($scale * $height);
          } else {
              $scale_width = $width;
              $scale_height = $height;
          }
           
          echo "
          <img border=\"0\" src=\"directory/imagename.ext\" width=\"" . $scale_width . "\" height=\"" . $scale_height . "\" />";

  php

  1

  Automatically resize an image to max width/height and keep aspect ratio.

          $image = "directory/imagename.ext"; // Location/name of image
          $max_width = "250"; // Max width to display image
          $max_height = "250"; // Max height to display image
           
          list($width, $height) = getimagesize($image);
          $scale = min($max_width/$width, $max_height/$height);
           
          if ($scale < '1') {
              $scale_width = floor($scale * $width);
              $scale_height = floor($scale * $height);
          } else {
              $scale_width = $width;
              $scale_height = $height;
          }
           
          echo "
          <img border=\"0\" src=\"directory/imagename.ext\" width=\"" . $scale_width . "\" height=\"" . $scale_height . "\" />";
  

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  posted by Webline on Aug 16, 2009 at 11:00 a.m. EDT

• ∞ 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);
  
   
  
  }
  

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  • bestfit, 
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  • resize
  posted by damonky on Jul 24, 2009 at 4:28 a.m. EDT

• ∞ simple flash resize

  import flash.external.*;
  
  butt.addEventListener(MouseEvent.MOUSE_OVER, scrPlayDOWN);
  function scrPlayDOWN(event:MouseEvent = null):void {
  	var RESIZE_CONTAINER:XML = new XML(<script><![CDATA[
  					function(height) {
  						var objNode = document.getElementById('flashid');
  						objNode.style.height = 300;
  					}]]></script>);
  
  	ExternalInterface.call(RESIZE_CONTAINER);
  }
  
  butt.addEventListener(MouseEvent.MOUSE_OUT, scrPlayUP);
  function scrPlayUP(event:MouseEvent = null):void {
  		var RESIZE_CONTAINER:XML = new XML(<script><![CDATA[
  					function(height) {
  						var objNode = document.getElementById('flashid');
  						objNode.style.height = 100;
  					}]]></script>);
  	ExternalInterface.call(RESIZE_CONTAINER);
  }

  as3

  1

  simple flash resize

  import flash.external.*;
  
  butt.addEventListener(MouseEvent.MOUSE_OVER, scrPlayDOWN);
  function scrPlayDOWN(event:MouseEvent = null):void {
  	var RESIZE_CONTAINER:XML = new XML(<script><![CDATA[
  					function(height) {
  						var objNode = document.getElementById('flashid');
  						objNode.style.height = 300;
  					}]]></script>);
  
  	ExternalInterface.call(RESIZE_CONTAINER);
  }
  
  butt.addEventListener(MouseEvent.MOUSE_OUT, scrPlayUP);
  function scrPlayUP(event:MouseEvent = null):void {
  		var RESIZE_CONTAINER:XML = new XML(<script><![CDATA[
  					function(height) {
  						var objNode = document.getElementById('flashid');
  						objNode.style.height = 100;
  					}]]></script>);
  	ExternalInterface.call(RESIZE_CONTAINER);
  }
  

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  • flash, 
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  posted by p0d04Va on Apr 10, 2009 at 7:34 a.m. EDT

• ∞ Bo po co rozszerzy? i u?y? strcpy...

  void Person::DodajKomentarz(const char *Komentarz)
  {   if ( Notatka == NULL )
      {   char *wsk = (char*)Komentarz,*wsk2;
          int Size=1;
          while ( *(wsk++) != '\0' ) Size++;
          Notatka = new char[Size];
          wsk = (char*)Komentarz;
          wsk2= Notatka;
          while ( *wsk != '\0' ) *(wsk2++) = *(wsk++);
          *wsk2 = '\0';
      }
      else
      {   char *wsk = (char*)Komentarz;
          char *owsk = Notatka;
          char *nwsk;
          int OldSize = 0;
          while ( *(owsk++) != '\0' ) OldSize++;
          int Size = OldSize;
          while ( *(wsk++) != '\0' ) Size++;
          Size++;
          char *Temp = new char[Size];
          nwsk = Temp;
          wsk = (char*)Komentarz;
          owsk = Notatka;
          while ( *owsk != '\0' ) *(nwsk++) = *(owsk++);
          while ( *wsk != '\0' ) *(nwsk++) = *(wsk++);
          *nwsk = '\0';
          delete[] Notatka;
          Notatka = Temp;
          Temp = NULL;
      }
  }

  cpp

  1

  Bo po co rozszerzy? i u?y? strcpy...

  void Person::DodajKomentarz(const char *Komentarz)
  {   if ( Notatka == NULL )
      {   char *wsk = (char*)Komentarz,*wsk2;
          int Size=1;
          while ( *(wsk++) != '\0' ) Size++;
          Notatka = new char[Size];
          wsk = (char*)Komentarz;
          wsk2= Notatka;
          while ( *wsk != '\0' ) *(wsk2++) = *(wsk++);
          *wsk2 = '\0';
      }
      else
      {   char *wsk = (char*)Komentarz;
          char *owsk = Notatka;
          char *nwsk;
          int OldSize = 0;
          while ( *(owsk++) != '\0' ) OldSize++;
          int Size = OldSize;
          while ( *(wsk++) != '\0' ) Size++;
          Size++;
          char *Temp = new char[Size];
          nwsk = Temp;
          wsk = (char*)Komentarz;
          owsk = Notatka;
          while ( *owsk != '\0' ) *(nwsk++) = *(owsk++);
          while ( *wsk != '\0' ) *(nwsk++) = *(wsk++);
          *nwsk = '\0';
          delete[] Notatka;
          Notatka = Temp;
          Temp = NULL;
      }
  }
  

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  • strcpy
  posted by tiraeth on Apr 01, 2009 at 2:14 p.m. EDT

• ∞ RIMAGE - ImageMagick Hack with Mogrify

  #!/bin/bash
  #
  # /usr/bin/rimage: Cria thumbnails a partir de uma imagem png
  #
  # Criado por Lucas Salies Brum aka sistematico <sistematico@gmail.com>
  # Criado em -> 02/04/2009 @ 20:36:59 
  # Última atualização -> 02/04/2009 @ 21:12:58  
  
  if [ ! "$(ls *.png)" ]; then
  	echo "ERRO: Nenhum arquivo png encontrado!"
  	exit 0
  fi	
  
  if [ "$#" -lt 1 ]; then
      for arquivo in $( ls *.png )
      do
          let "num += 1"
          old=$arquivo
      	new=thumb-${arquivo}
      	cp $old $new
      	echo "Reduzindo $old para $new"
      	sleep 1
      	mogrify -resize 20% $new        	
      done
  elif [ "$(echo $1 | rev | cut -d . -f 1)" == "gnp" ]; then
     	if [ ! -f "$1" ]; then
      	echo "ERRO: O arquivo $1 não existe!"
     		exit 0
     	fi	
      old=$1
  	new=thumb-${1}
  	cp $old $new
  	echo "Reduzindo $old para $new"
  	sleep 1
  	mogrify -resize 20% $new
  else 
      echo "usage: rimage image.png"
      echo "or"
      echo "rimage"
      exit 0
  fi

  bash

  1

  RIMAGE - ImageMagick Hack with Mogrify

  #!/bin/bash
  #
  # /usr/bin/rimage: Cria thumbnails a partir de uma imagem png
  #
  # Criado por Lucas Salies Brum aka sistematico <sistematico@gmail.com>
  # Criado em -> 02/04/2009 @ 20:36:59 
  # Última atualização -> 02/04/2009 @ 21:12:58  
  
  if [ ! "$(ls *.png)" ]; then
  	echo "ERRO: Nenhum arquivo png encontrado!"
  	exit 0
  fi	
  
  if [ "$#" -lt 1 ]; then
      for arquivo in $( ls *.png )
      do
          let "num += 1"
          old=$arquivo
      	new=thumb-${arquivo}
      	cp $old $new
      	echo "Reduzindo $old para $new"
      	sleep 1
      	mogrify -resize 20% $new        	
      done
  elif [ "$(echo $1 | rev | cut -d . -f 1)" == "gnp" ]; then
     	if [ ! -f "$1" ]; then
      	echo "ERRO: O arquivo $1 não existe!"
     		exit 0
     	fi	
      old=$1
  	new=thumb-${1}
  	cp $old $new
  	echo "Reduzindo $old para $new"
  	sleep 1
  	mogrify -resize 20% $new
  else 
      echo "usage: rimage image.png"
      echo "or"
      echo "rimage"
      exit 0
  fi
  

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  posted by sistematico on Mar 26, 2009 at 10:48 p.m. EDT

• ∞ batch resize all JPGs in a folder with output to a subfolder

  mogrify -size 800x600 -path ./resized -monitor ./*.jpg 

  bash

  1

  batch resize all JPGs in a folder with output to a subfolder

  mogrify -size 800x600 -path ./resized -monitor ./*.jpg 
  

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  • bash, 
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  • resize
  posted by zerolab on Mar 08, 2009 at 9:12 p.m. EDT

• ∞ this document resizes the text depending on the wiindow size

  <!-- this document resizes the text depending on the wiindow size -->
  
  
  
  <script type="text/javascript"> 
  function checkBrowserWidth()
  {
  var theWidth = getBrowserWidth();
  
  if (theWidth > 1200)
  			{
  			document.getElementsByTagName("body").item(0).style.fontSize='100%';
  		}
  	else { 
  
  if (theWidth > 1000)
  			{
  			document.getElementsByTagName("body").item(0).style.fontSize='87%';
  		}
  	else { 
  	if (theWidth > 920)
  			{
  			document.getElementsByTagName("body").item(0).style.fontSize='81%';
  		}
  	else { 
  		if (theWidth > 840)
  			{
  			document.getElementsByTagName("body").item(0).style.fontSize='76%';
  			}
  		else { 
  			if (theWidth > 760)
  				{
  				document.getElementsByTagName("body").item(0).style.fontSize='69%';
  				}
  			else { 
  				document.getElementsByTagName("body").item(0).style.fontSize='62%';
  				}
  			}
  		}
  	}
  }
  }
  
  function getBrowserWidth()
  {
  	if (window.innerWidth)
  	{
  		return window.innerWidth;
  	}
  	else if (document.documentElement && document.documentElement.clientWidth != 0)
  	{
  		return document.documentElement.clientWidth;
  	}
  	else if (document.body)
  	{
  		return document.body.clientWidth;
  	}
  	
  	return 0;
  }
  
  </script>
  
  
  <!-- this should be placed at or near the foot of the document -->
  
  <script type="text/javascript"> 
  checkBrowserWidth();
  
  window.onresize = checkBrowserWidth;
  </script>
  
  

  js

  1

  this document resizes the text depending on the wiindow size

  <!-- this document resizes the text depending on the wiindow size -->
  
  
  
  <script type="text/javascript"> 
  function checkBrowserWidth()
  {
  var theWidth = getBrowserWidth();
  
  if (theWidth > 1200)
  			{
  			document.getElementsByTagName("body").item(0).style.fontSize='100%';
  		}
  	else { 
  
  if (theWidth > 1000)
  			{
  			document.getElementsByTagName("body").item(0).style.fontSize='87%';
  		}
  	else { 
  	if (theWidth > 920)
  			{
  			document.getElementsByTagName("body").item(0).style.fontSize='81%';
  		}
  	else { 
  		if (theWidth > 840)
  			{
  			document.getElementsByTagName("body").item(0).style.fontSize='76%';
  			}
  		else { 
  			if (theWidth > 760)
  				{
  				document.getElementsByTagName("body").item(0).style.fontSize='69%';
  				}
  			else { 
  				document.getElementsByTagName("body").item(0).style.fontSize='62%';
  				}
  			}
  		}
  	}
  }
  }
  
  function getBrowserWidth()
  {
  	if (window.innerWidth)
  	{
  		return window.innerWidth;
  	}
  	else if (document.documentElement && document.documentElement.clientWidth != 0)
  	{
  		return document.documentElement.clientWidth;
  	}
  	else if (document.body)
  	{
  		return document.body.clientWidth;
  	}
  	
  	return 0;
  }
  
  </script>
  
  
  <!-- this should be placed at or near the foot of the document -->
  
  <script type="text/javascript"> 
  checkBrowserWidth();
  
  window.onresize = checkBrowserWidth;
  </script>
  

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  • javascript, 
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  • text
  posted by thejames on Dec 23, 2008 at 12:23 p.m. EST

• ∞ Proportional image resizing

  function resize_image( $file, $width = 0, $height = 0, $proportional = false, $output = 'file', $delete_original = true )
  {
  	if ( $height <= 0 && $width <= 0 ) return false;
  
  	$info = getimagesize($file);
  	$image = '';
  
  	$final_width = 0;
  	$final_height = 0;
  	list($width_old, $height_old) = $info;
  
     if ($proportional) {
  		   if ($width == 0) $factor = $height/$height_old;
  		   elseif ($height == 0) $factor = $width/$width_old;
  		   else $factor = min ( $width / $width_old, $height / $height_old);
  
  		   $final_width = round ($width_old * $factor);
  		   $final_height = round ($height_old * $factor);
     } else {
  		   $final_width = ( $width <= 0 ) ? $width_old : $width;
  		   $final_height = ( $height <= 0 ) ? $height_old : $height;
     }
  
     switch ($info[2]) {
  		   case IMAGETYPE_GIF:
  				   $image = imagecreatefromgif($file);
  		   break;
  		   case IMAGETYPE_JPEG:
  				   $image = imagecreatefromjpeg($file);
  		   break;
  		   case IMAGETYPE_PNG:
  				   $image = imagecreatefrompng($file);
  		   break;
  		   default:
  				   return false;
     }
  
     $image_resized = imagecreatetruecolor( $final_width, $final_height );
  
     if(($info[2] == IMAGETYPE_GIF) || ($info[2] == IMAGETYPE_PNG)) {
  		   $trnprt_indx = imagecolortransparent($image);
  
  		   // If we have a specific transparent color
  		   if($trnprt_indx >= 0) {
  
  				   // Get the original image's transparent color's RGB values
  				   $trnprt_color    = imagecolorsforindex($image, $trnprt_indx);
  
  				   // Allocate the same color in the new image resource
  				   $trnprt_indx    = imagecolorallocate($image_resized, $trnprt_color['red'], $trnprt_color['green'], $trnprt_color['blue']);
  
  				   // Completely fill the background of the new image with allocated color.
  				   imagefill($image_resized, 0, 0, $trnprt_indx);
  
  				   // Set the background color for new image to transparent
  				   imagecolortransparent($image_resized, $trnprt_indx);
  
  
  		   }
  		   // Always make a transparent background color for PNGs that don't have one allocated already
  		   elseif ($info[2] == IMAGETYPE_PNG) {
  
  				   // Turn off transparency blending (temporarily)
  				   imagealphablending($image_resized, false);
  
  				   // Create a new transparent color for image
  				   $color = imagecolorallocatealpha($image_resized, 0, 0, 0, 127);
  
  				   // Completely fill the background of the new image with allocated color.
  				   imagefill($image_resized, 0, 0, $color);
  
  				   // Restore transparency blending
  				   imagesavealpha($image_resized, true);
  		   }
     }
  
     imagecopyresampled($image_resized, $image, 0, 0, 0, 0, $final_width, $final_height, $width_old, $height_old);
  
     if($delete_original) @unlink($file);
  
     switch (strtolower($output)) {
  		   case 'browser':
  				   $mime = image_type_to_mime_type($info[2]);
  				   header("Content-type: $mime");
  				   $output = NULL;
  		   break;
  		   case 'file':
  				   $output = $file;
  		   break;
  		   case 'return':
  				   return $image_resized;
  		   break;
  		   default:
  		   break;
     }
  
     switch ($info[2]) {
  		   case IMAGETYPE_GIF:
  				   imagegif($image_resized, $output);
  		   break;
  		   case IMAGETYPE_JPEG:
  				   imagejpeg($image_resized, $output);
  		   break;
  		   case IMAGETYPE_PNG:
  				   imagepng($image_resized, $output);
  		   break;
  		   default:
  				   return false;
     }
  
     return true;
  }

  php

  1

  Proportional image resizing

  function resize_image( $file, $width = 0, $height = 0, $proportional = false, $output = 'file', $delete_original = true )
  {
  	if ( $height <= 0 && $width <= 0 ) return false;
  
  	$info = getimagesize($file);
  	$image = '';
  
  	$final_width = 0;
  	$final_height = 0;
  	list($width_old, $height_old) = $info;
  
     if ($proportional) {
  		   if ($width == 0) $factor = $height/$height_old;
  		   elseif ($height == 0) $factor = $width/$width_old;
  		   else $factor = min ( $width / $width_old, $height / $height_old);
  
  		   $final_width = round ($width_old * $factor);
  		   $final_height = round ($height_old * $factor);
     } else {
  		   $final_width = ( $width <= 0 ) ? $width_old : $width;
  		   $final_height = ( $height <= 0 ) ? $height_old : $height;
     }
  
     switch ($info[2]) {
  		   case IMAGETYPE_GIF:
  				   $image = imagecreatefromgif($file);
  		   break;
  		   case IMAGETYPE_JPEG:
  				   $image = imagecreatefromjpeg($file);
  		   break;
  		   case IMAGETYPE_PNG:
  				   $image = imagecreatefrompng($file);
  		   break;
  		   default:
  				   return false;
     }
  
     $image_resized = imagecreatetruecolor( $final_width, $final_height );
  
     if(($info[2] == IMAGETYPE_GIF) || ($info[2] == IMAGETYPE_PNG)) {
  		   $trnprt_indx = imagecolortransparent($image);
  
  		   // If we have a specific transparent color
  		   if($trnprt_indx >= 0) {
  
  				   // Get the original image's transparent color's RGB values
  				   $trnprt_color    = imagecolorsforindex($image, $trnprt_indx);
  
  				   // Allocate the same color in the new image resource
  				   $trnprt_indx    = imagecolorallocate($image_resized, $trnprt_color['red'], $trnprt_color['green'], $trnprt_color['blue']);
  
  				   // Completely fill the background of the new image with allocated color.
  				   imagefill($image_resized, 0, 0, $trnprt_indx);
  
  				   // Set the background color for new image to transparent
  				   imagecolortransparent($image_resized, $trnprt_indx);
  
  
  		   }
  		   // Always make a transparent background color for PNGs that don't have one allocated already
  		   elseif ($info[2] == IMAGETYPE_PNG) {
  
  				   // Turn off transparency blending (temporarily)
  				   imagealphablending($image_resized, false);
  
  				   // Create a new transparent color for image
  				   $color = imagecolorallocatealpha($image_resized, 0, 0, 0, 127);
  
  				   // Completely fill the background of the new image with allocated color.
  				   imagefill($image_resized, 0, 0, $color);
  
  				   // Restore transparency blending
  				   imagesavealpha($image_resized, true);
  		   }
     }
  
     imagecopyresampled($image_resized, $image, 0, 0, 0, 0, $final_width, $final_height, $width_old, $height_old);
  
     if($delete_original) @unlink($file);
  
     switch (strtolower($output)) {
  		   case 'browser':
  				   $mime = image_type_to_mime_type($info[2]);
  				   header("Content-type: $mime");
  				   $output = NULL;
  		   break;
  		   case 'file':
  				   $output = $file;
  		   break;
  		   case 'return':
  				   return $image_resized;
  		   break;
  		   default:
  		   break;
     }
  
     switch ($info[2]) {
  		   case IMAGETYPE_GIF:
  				   imagegif($image_resized, $output);
  		   break;
  		   case IMAGETYPE_JPEG:
  				   imagejpeg($image_resized, $output);
  		   break;
  		   case IMAGETYPE_PNG:
  				   imagepng($image_resized, $output);
  		   break;
  		   default:
  				   return false;
     }
  
     return true;
  }
  

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  0 comments - tagged in 
  • aspect ratio, 
  • gd, 
  • height, 
  • image, 
  • php, 
  • proportional, 
  • resize, 
  • width
  posted by evansims on Dec 20, 2008 at 7:39 p.m. EST

• ∞ Resize Icons

  ## Convert all icons in current directory
  ## to 48x48, overwriting the old files.
  
  for icon in *; do convert "$icon" -resize 48x48 ./"$icon"; done
  
  
  ## Convert all icons in current directory to 16x16,
  ## placing the new files in a directory within the current directory.
  
  for icon in *; do convert "$icon" -resize 16x16 ./16x16/"$icon"; done

  bash

  1

  Resize Icons

  ## Convert all icons in current directory
  ## to 48x48, overwriting the old files.
  
  for icon in *; do convert "$icon" -resize 48x48 ./"$icon"; done
  
  
  ## Convert all icons in current directory to 16x16,
  ## placing the new files in a directory within the current directory.
  
  for icon in *; do convert "$icon" -resize 16x16 ./16x16/"$icon"; done
  

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  0 comments - tagged in 
  • bash, 
  • convert, 
  • resize
  posted by lynng on Dec 18, 2008 at 7:02 p.m. EST

• ∞ Resize a upload image

  <?php
  
  function Resize($Dir, $Image, $NewDir, $NewImage, $MaxWidth, $MaxHeight, $Quality)
  {
      list($ImageWidth, $ImageHeight, $TypeCode) = getimagesize($Dir . $Image);
      $ImageType = ($TypeCode == 1 ? "gif":($TypeCode == 2 ? "jpeg":($TypeCode == 3 ?
          "png":false)));
      $CreateFunction = "imagecreatefrom" . $ImageType;
      $OutputFunction = "image" . $ImageType;
      if ($ImageType)
      {
          $Ratio = ($ImageHeight / $ImageWidth);
          $ImageSource = $CreateFunction($Dir . $Image);
          if ($ImageWidth > $MaxWidth || $ImageHeight > $MaxHeight)
          {
              if ($ImageWidth > $MaxWidth)
              {
                  $ResizedWidth = $MaxWidth;
                  $ResizedHeight = $ResizedWidth * $Ratio;
              }
              else
              {
                  $ResizedWidth = $ImageWidth;
                  $ResizedHeight = $ImageHeight;
              }
              if ($ResizedHeight > $MaxHeight)
              {
                  $ResizedHeight = $MaxHeight;
                  $ResizedWidth = $ResizedHeight / $Ratio;
              }
              $ResizedImage = imagecreatetruecolor($ResizedWidth, $ResizedHeight);
              imagecopyresampled($ResizedImage, $ImageSource, 0, 0, 0, 0, $ResizedWidth, $ResizedHeight,
                  $ImageWidth, $ImageHeight);
          }
          else
          {
              $ResizedWidth = $ImageWidth;
              $ResizedHeight = $ImageHeight;
              $ResizedImage = $ImageSource;
          }
          $OutputFunction($ResizedImage, $NewDir . $NewImage, $Quality);
          return true;
      }
      else
          return false;
  }
  
  ?>

  php

  1

  Resize a upload image

  <?php
  
  function Resize($Dir, $Image, $NewDir, $NewImage, $MaxWidth, $MaxHeight, $Quality)
  {
      list($ImageWidth, $ImageHeight, $TypeCode) = getimagesize($Dir . $Image);
      $ImageType = ($TypeCode == 1 ? "gif":($TypeCode == 2 ? "jpeg":($TypeCode == 3 ?
          "png":false)));
      $CreateFunction = "imagecreatefrom" . $ImageType;
      $OutputFunction = "image" . $ImageType;
      if ($ImageType)
      {
          $Ratio = ($ImageHeight / $ImageWidth);
          $ImageSource = $CreateFunction($Dir . $Image);
          if ($ImageWidth > $MaxWidth || $ImageHeight > $MaxHeight)
          {
              if ($ImageWidth > $MaxWidth)
              {
                  $ResizedWidth = $MaxWidth;
                  $ResizedHeight = $ResizedWidth * $Ratio;
              }
              else
              {
                  $ResizedWidth = $ImageWidth;
                  $ResizedHeight = $ImageHeight;
              }
              if ($ResizedHeight > $MaxHeight)
              {
                  $ResizedHeight = $MaxHeight;
                  $ResizedWidth = $ResizedHeight / $Ratio;
              }
              $ResizedImage = imagecreatetruecolor($ResizedWidth, $ResizedHeight);
              imagecopyresampled($ResizedImage, $ImageSource, 0, 0, 0, 0, $ResizedWidth, $ResizedHeight,
                  $ImageWidth, $ImageHeight);
          }
          else
          {
              $ResizedWidth = $ImageWidth;
              $ResizedHeight = $ImageHeight;
              $ResizedImage = $ImageSource;
          }
          $OutputFunction($ResizedImage, $NewDir . $NewImage, $Quality);
          return true;
      }
      else
          return false;
  }
  
  ?>
  

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  0 comments - tagged in 
  • image, 
  • php, 
  • resize
  posted by borisegx on Dec 14, 2008 at 9:11 p.m. EST

A good read

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