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显露照片exif信息PHP代码

发布时间:2022-03-08 19:57:40 所属栏目:PHP教程 来源:互联网
导读:中文方式显示照片EXIF信息,显示图片中所略图 这东西除了一些php论坛简单显示三两信息,别人的lb5000论坛上看到过显示,asp的也有不过很久没接触看着晕。 不想重复劳动,搜过google,除了asp没找到其他开源的显示exif的,所以整理出来或许有用。 没什么技术
  中文方式显示照片EXIF信息,显示图片中所略图
 
  这东西除了一些php论坛简单显示三两信息,别人的lb5000论坛上看到过显示,asp的也有不过很久没接触看着晕。
 
  不想重复劳动,搜过google,除了asp没找到其他开源的显示exif的,所以整理出来或许有用。
 
  没什么技术含量,基本只是汉化和资料整理的工作,以下代码为主要部分,所有文件在压缩包内,可以广泛用于相册和论坛显示图片信息的插件,希望熟悉相关知识的朋友找找bug或者加以优化。
 
  目前应该缺不少信息,如果单单使用应该足够了。
 
  看到过别人传过来的照片里面有缩略图,photoshop做的,但是不知道怎么加进去,有人知道么?
 
  缩略图可以显示
 
  PHP代码:
 
  以下为引用的内容:
  <?
  /**
  * 获取图象信息的函数
  *
  * 一个全面获取图象信息的函数
  *
  * @access public
  * @param string $img 图片路径
  * @return array
  */
  function GetImageInfoVal($ImageInfo,$val_arr) {
  $InfoVal = "未知";
  foreach($val_arr as $name=>$val) {
  if ($name==$ImageInfo) {
  $InfoVal = &$val;
  break;
  }
  }
  return $InfoVal;
  }
  function GetImageInfo($img) {
 
  $imgtype = array("", "GIF", "JPG", "PNG", "SWF", "PSD", "BMP", "TIFF(intel byte order)", "TIFF(motorola byte order)", "JPC", "JP2", "JPX", "JB2", "SWC", "IFF", "WBMP", "XBM");
  $Orientation = array("", "top left side", "top right side", "bottom right side", "bottom left side", "left side top", "right side top", "right side bottom", "left side bottom");
  $ResolutionUnit = array("", "", "英寸", "厘米");
  $YCbCrPositioning = array("", "the center of pixel array", "the datum point");
  $ExposureProgram = array("未定义", "手动", "标准程序", "光圈先决", "快门先决", "景深先决", "运动模式", "肖像模式", "风景模式");
  $MeteringMode_arr = array(
  "0" => "未知",
  "1" => "平均",
  "2" => "中央重点平均测光",
  "3" => "点测",
  "4" => "分区",
  "5" => "评估",
  "6" => "局部",
  "255" => "其他"
  );
  $Lightsource_arr = array(
  "0" => "未知",
  "1" => "日光",
  "2" => "荧光灯",
  "3" => "钨丝灯",
  "10" => "闪光灯",
  "17" => "标准灯光A",
  "18" => "标准灯光B",
  "19" => "标准灯光C",
  "20" => "D55",
  "21" => "D65",
  "22" => "D75",
  "255" => "其他"
  );
  $Flash_arr = array(
  "0" => "flash did not fire",
  "1" => "flash fired",
  "5" => "flash fired but strobe return light not detected",
  "7" => "flash fired and strobe return light detected",
  );
 
  $exif = exif_read_data ($img,"IFD0");
  if ($exif===false) {
  $new_img_info = array ("文件信息" => "没有图片EXIF信息");
  }
  else
  {
  $exif = exif_read_data ($img,0,true);
  $new_img_info = array (
  "文件信息" => "-----------------------------",
  "文件名" => $exif[FILE][FileName],
  "文件类型" => $imgtype[$exif[FILE][FileType]],
  "文件格式" => $exif[FILE][MimeType],
  "文件大小" => $exif[FILE][FileSize],
  "时间戳" => date("Y-m-d H:i:s",$exif[FILE][FileDateTime]),
  "图像信息" => "-----------------------------",
  "图片说明" => $exif[IFD0][ImageDescription],
  "制造商" => $exif[IFD0][Make],
  "型号" => $exif[IFD0][Model],
  "方向" => $Orientation[$exif[IFD0][Orientation]],
  "水平分辨率" => $exif[IFD0][XResolution].$ResolutionUnit[$exif[IFD0][ResolutionUnit]],
  "垂直分辨率" => $exif[IFD0][YResolution].$ResolutionUnit[$exif[IFD0][ResolutionUnit]],
  "创建软件" => $exif[IFD0][Software],
  "修改时间" => $exif[IFD0][DateTime],
  "作者" => $exif[IFD0][Artist],
  "YCbCr位置控制" => $YCbCrPositioning[$exif[IFD0][YCbCrPositioning]],
  "版权" => $exif[IFD0][Copyright],
  "摄影版权" => $exif[COMPUTED][Copyright.Photographer],
  "编辑版权" => $exif[COMPUTED][Copyright.Editor],
  "拍摄信息" => "-----------------------------",
  "Exif版本" => $exif[EXIF][ExifVersion],
  "FlashPix版本" => "Ver. ".number_format($exif[EXIF][FlashPixVersion]/100,2),
  "拍摄时间" => $exif[EXIF][DateTimeOriginal],
  "数字化时间" => $exif[EXIF][DateTimeDigitized],
  "拍摄分辨率高" => $exif[COMPUTED][Height],
  "拍摄分辨率宽" => $exif[COMPUTED][Width],
  /*
  The actual aperture value of lens when the image was taken.
  Unit is APEX.
  To convert this value to ordinary F-number(F-stop),
  calculate this value's power of root 2 (=1.4142).
  For example, if the ApertureValue is '5', F-number is pow(1.41425,5) = F5.6.
  */
  "光圈" => $exif[EXIF][ApertureValue],
  "快门速度" => $exif[EXIF][ShutterSpeedValue],
  "快门光圈" => $exif[COMPUTED][ApertureFNumber],
  "最大光圈值" => "F".$exif[EXIF][MaxApertureValue],
  "曝光时间" => $exif[EXIF][ExposureTime],
  "F-Number" => $exif[EXIF][FNumber],
  "测光模式" => GetImageInfoVal($exif[EXIF][MeteringMode],$MeteringMode_arr),
  "光源" => GetImageInfoVal($exif[EXIF][LightSource], $Lightsource_arr),
  "闪光灯" => GetImageInfoVal($exif[EXIF][Flash], $Flash_arr),
  "曝光模式" => ($exif[EXIF][ExposureMode]==1?"手动":"自动"),
  "白平衡" => ($exif[EXIF][WhiteBalance]==1?"手动":"自动"),
  "曝光程序" => $ExposureProgram[$exif[EXIF][ExposureProgram]],
  /*
  Brightness of taken subject, unit is APEX. To calculate Exposure(Ev) from BrigtnessValue(Bv), you must add SensitivityValue(Sv).
  Ev=Bv Sv Sv=log((ISOSpeedRating/3.125),2)
  ISO100:Sv=5, ISO200:Sv=6, ISO400:Sv=7, ISO125:Sv=5.32.
  */
  "曝光补偿" => $exif[EXIF][ExposureBiasValue]."EV",
  "ISO感光度" => $exif[EXIF][ISOSpeedRatings],
  "分量配置" => (bin2hex($exif[EXIF][ComponentsConfiguration])=="01020300"?"YCbCr":"RGB"),//'0x04,0x05,0x06,0x00'="RGB" '0x01,0x02,0x03,0x00'="YCbCr"
  "图像压缩率" => $exif[EXIF][CompressedBitsPerPixel]."Bits/Pixel",
  "对焦距离" => $exif[COMPUTED][FocusDistance]."m",
  "焦距" => $exif[EXIF][FocalLength]."mm",
  "等价35mm焦距" => $exif[EXIF][FocalLengthIn35mmFilm]."mm",
  /*
  Stores user comment. This tag allows to use two-byte character code or unicode. First 8 bytes describe the character code. 'JIS' is a Japanese character code (known as Kanji).
  '0x41,0x53,0x43,0x49,0x49,0x00,0x00,0x00':ASCII
  '0x4a,0x49,0x53,0x00,0x00,0x00,0x00,0x00':JIS
  '0x55,0x4e,0x49,0x43,0x4f,0x44,0x45,0x00':Unicode
  '0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00':Undefined
  */
  "用户注释编码" => $exif[COMPUTED][UserCommentEncoding],
  "用户注释" => $exif[COMPUTED][UserComment],
  "色彩空间" => ($exif[EXIF][ColorSpace]==1?"sRGB":"Uncalibrated"),
  "Exif图像宽度" => $exif[EXIF][ExifImageLength],
  "Exif图像高度" => $exif[EXIF][ExifImageWidth],
  "文件来源" => (bin2hex($exif[EXIF][FileSource])==0x03?"digital still camera":"unknown"),
  "场景类型" => (bin2hex($exif[EXIF][SceneType])==0x01?"A directly photographed image":"unknown"),
  "缩略图文件格式" => $exif[COMPUTED][Thumbnail.FileType],
  "缩略图Mime格式" => $exif[COMPUTED][Thumbnail.MimeType]
  );
  }
  return $new_img_info;
  }
 
  $innerhtml = "";
  $exif = GetImageInfo($_GET['img']);
  $innerhtml .= "<TABLE>";
 
  foreach($exif as $name=>$val) {
  $innerhtml .= "<TR><TD>{$name}</TD><TD>{$val}</TD></TR>";
  }
 
  $innerhtml .= "<TR><TD colspan=/"2/">";
  if ($_GET['img']) {
  $image = exif_thumbnail($_GET['img']);
  } else {
  $image = false;
  }
  if ($image!==false) {
  $innerhtml .= "<img src=/"thumbnail.php?img=".$_GET['img']."/">";
  } else {
  // no thumbnail available, handle the error here
  $innerhtml .= "No thumbnail available";
  }
 
  $innerhtml .= "</TD></TR></TABLE>";
  ?>
  <html>
  <head>
  <title>图片信息</title>
  <meta http-equiv="Content-Type" content="text/html; charset=??????">
  </head>
  <body>
  <SCRIPT>
  <!--
  //初始化内容值
  parent.followTd<?=$_GET['r_id'];?>.innerHTML='<?=$innerhtml;?>';
  //已读取
  parent.document.images.followImg<?=$_GET['r_id'];?>.loaded='yes';
  -->
  </SCRIPT>
  </body>
  </html>

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