我正在将图像上传到网站&想提取每个图像的名称ICC profile&在图像描述中使用它.到目前为止,标准PHP没有产生任何结果.我用Photoshop,Bridge& amp;检查了图像. Exiftool&每个人都已确定嵌入的个人资料
<?PHP $info = exif_read_data($image); echo 'ICC Profile: '.$info['ICC_Profile'].'<br>'; echo 'ICC Profile: '.$info['CurrentICCProfile'].'<br>'; echo 'ICC Profile: '.$info['ColorSpace'].'<br>'; ?>
Imagick产生了最好的结果：
$imagick = new Imagick();
$imagick->readImage($image);
print_r ($imagick->getImageProfiles("icc",true));
我正在使用这些版本：
PHP Version 5.2.17 – imagick module version 3.0.1 – ImageMagick version 6.7.6-8
print_r返回(对于’ProPhoto RGB’ICC配置文件)：
Array ( [icc] => �KCMSmntrRGB XYZ � :acspMSFTKODAROMM���+KODAcprtHdesc\�wtpt�rTRC�gTRC�bTRC�rXYZgXYZbXYZ,dmnd@ndmdd��mmod�(textCopyright (c) Eastman Kodak Company,1999,all rights reserved.desc ProPhoto RGB��ProPhoto RGB ProPhoto RGBXYZ ���,curv�XYZ �4I�XYZ “��>XYZ �-descKODAK��KODAKKODAKdesc’Reference Output Medium Metric(ROMM) (��Reference Output Medium Metric(ROMM) ‘Reference Output Medium Metric(ROMM) mmod���;� )
全部(来自Exiftool)：
Profile CMM Type : KCMS Profile Version : 2.1.0 Profile Class : Display Device Profile Color Space Data : RGB Profile Connection Space : XYZ Profile Date Time : 1998:12:01 18:58:21 Profile File Signature : acsp Primary Platform : Microsoft Corporation CMM Flags : Not Embedded,Independent Device Manufacturer : KODA Device Model : ROMM Device Attributes : Reflective,Glossy,Positive,Color Rendering Intent : Perceptual Connection Space Illuminant : 0.9642 1 0.82487 Profile Creator : KODA Profile ID : 0 Profile Copyright : Copyright (c) Eastman Kodak Company,all rights reserved. Profile Description : ProPhoto RGB Media White Point : 0.9642 1 0.82489 Red Tone Reproduction Curve : (Binary data 14 bytes,use -b option to extract) Green Tone Reproduction Curve : (Binary data 14 bytes,use -b option to extract) Blue Tone Reproduction Curve : (Binary data 14 bytes,use -b option to extract) Red Matrix Column : 0.79767 0.28804 0 Green Matrix Column : 0.13519 0.71188 0 Blue Matrix Column : 0.03134 9e-005 0.82491 Device Mfg Desc : KODAK Device Model Desc : Reference Output Medium Metric(ROMM) Make And Model : (Binary data 40 bytes,use -b option to extract)
$imagick = new imagick('/some/filename');
$profile = $imagick->getImageProperties('icc:model',true);
/**
* If the property 'icc:model' is set $profile now should be:
* array( 'icc:model' => 'ICC model name')
*/
如果要查看为图像设置的所有属性,可以使用identify -verbose / some / filename手动探测图像.在那里你将不得不寻找“属性：”,ICC名称应该在那里设置.
以上是获取ICC配置文件名称的简便方法.如果您确实需要icc配置文件中的ICC名称,您可能需要查看ICC Profile Format Specification
简而言之：
>前128个字节是标题.然后是一个标记表,其中前4个字节是表的大小.
>每个标签由4个字节的三元组组成.前4个字节是标签的名称.接下来的四个字节是icc文件中数据的偏移量.接下来的四个字节定义标签数据的大小.
我们对’desc’标签感兴趣(参见规范中的第63页).
>描述本身再次以’desc’开始,然后保留四个字节.接下来的四个字节定义ICC配置文件名称的大小.
在代码中它的工作方式如下：
$image = new imagick('/path/to/img');
try {
$existingICC = $image->getImageProfile('icc');
} catch (ImagickException $e) {
// Handle it
$existingICC = null;
}
if($existingICC) {
// Search the start of the description tag in the tag table.:
// We are not looking in the 128 bytes for the header + 4 bytes for the size of the table
$descTagPos = stripos( $existingICC,'desc',131 );
if( $descTagPos === false) {
// There is no description,handle it.
} else {
// This is the description Tag ( 'desc'|offset|size each with a size of 4 bytes
$descTag = substr( $existingICC,$descTagPos,12 );
// Get the offset out of the description tag,unpack it from binary to hex and then from hex to decimal
$descTagOffset = substr ( $descTag,4,4 );
$descTagOffset = unpack( 'H*',$descTagOffset );
$descTagOffset = hexdec( $descTagOffset[1] );
// Same for the description size
$descTagSize = substr ( $existingICC,$descTagPos + 8,4 );
$descTagSize = unpack('H*',$descTagSize);
$descTagSize = hexdec( $descTagSize[1] );
// Here finally is the descripton
$iccDesc = substr( $existingICC,$descTagOffset,$descTagSize );
// See page 63 in the standard,here we extract the size of the ICC profile name string
$iccNameSize = substr( $iccDesc,8,4 );
$iccNameSize = unpack( 'H*',$iccNameSize);
$iccNameSize = hexdec( $iccNameSize[1]);
// Finally got the name.
$iccName = substr( $iccDesc,12,$iccNameSize );
echo "ICC name: $iccName\n";
}
}
