image upload

• 

  sujatharagu · Member · Jul 20, 2007 at 8:49 am

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  please help me,

  The following code used for ratio based image resizing.But it provide 1 part of the image from moriginal image.I need to resize the image with quality.

  <form name=”myForm” action=”uploadpic.php” method=”post” enctype=”multipart/form-data” />
  <input name=”userfile” type=”file” size=”40″ />
  <?

  if (@is_uploaded_file($_FILES[“userfile”][“tmp_name”]))
  {

  $img_name = uploadPic(“player”,”userfile”,”picupload/”,150,150,1,”destination_name.jpg”);

  //echo $img_name;

  }
  function uploadPic($prefix,$formSrc,$dDir,$maxWidth,$maxHeight,$resizeFlag,$tempName)
  {

  if (!copy($_FILES[$formSrc][“tmp_name”],$dDir.$_FILES[$formSrc][“name”]))
  {

  echo “failed to copy $file…n”;

  }

  if ($tempName == “”) { $tempName = $prefix.”_”.mt_rand().”.jpg”; }

  //hard copy of picture
  $src_img = $dDir.$_FILES[$formSrc][“name”];

  //destination
  $dest = $dDir.$tempName;

  //get source dimentions
  $src_dims = getImageSize($src_img);

  //create appropriate temp image
  switch ($src_dims[2]) {
  case 1: //GIF
  break;

  case 2: //JPEG
  $srcImage = imageCreateFromJpeg($src_img);
  break;

  case 3: //PNG
  break;

  default:
  return false;
  break;
  }

  $srcRatio = $src_dims[0]/$src_dims[1]; // width/height ratio
  $destRatio = $maxWidth/$maxHeight;

  echo $srcRatio.”<br>”;
  echo $destRatio;

  if ($destRatio > $srcRatio) {
  $destSize[1] = $maxHeight;
  $destSize[0] = $maxHeight*$srcRatio;
  }
  else {
  $destSize[0] = $maxWidth;

  $destSize[1] = $maxWidth/$srcRatio;

  }

  //if set image dimensions are required:
  if ($resizeFlag == 1) {
  $destSize[0] = $maxWidth;
  $destSize[1] = $maxHeight;

  }

  $thumb_w = $destSize[0];
  $thumb_h = $destSize[1];

  $dst_img = imageCreateTrueColor($thumb_w,$thumb_h);

  imageCopyResampled($dst_img,$srcImage,0,0,0,0,$thumb_w,$thumb_h,$maxWidth,$maxHeight);

  switch ($src_dims[2])
  {
  case 1:
  break;
  case 2:
  imageJpeg($dst_img, $dest, 75); //75 denotes image quality / compression ratio
  break;

  case 3:
  break;
  }
  //$y++;

  unlink($src_img);
  return $tempName;
  }
  ?>
  <input type=”submit” name=”submit” value=”submit”>
  </form>

  <img src=”picupload/destination_name.jpg”>

• 

  ozrisk · Member · Jul 20, 2007 at 9:10 am

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  If you are able to do this you are not on blogging on a WordPress.com blog – you must have your own instance of wordpress. We use wordpress MU software here so we are unable to help. Go to the forums at http://wordpress.org/support – they should be able to.