CGImageProperties中定義的字典意義
//TIFF信息字典
const CFStringRef kCGImagePropertyTIFFDictionary;
/GIF信息字典
const CFStringRef kCGImagePropertyGIFDictionary;
//JFIF信息字典
const CFStringRef kCGImagePropertyJFIFDictionary;
//EXif信息字典
const CFStringRef kCGImagePropertyExifDictionary;
//PNG信息字典
const CFStringRef kCGImagePropertyPNGDictionary;
//IPTC信息字典
const CFStringRef kCGImagePropertyIPTCDictionary;
//GPS信息字典
const CFStringRef kCGImagePropertyGPSDictionary;
//原始信息字典
const CFStringRef kCGImagePropertyRawDictionary;
//CIFF信息字典
const CFStringRef kCGImagePropertyCIFFDictionary;
//佳能相機(jī)信息字典
const CFStringRef kCGImagePropertyMakerCanonDictionary;
//尼康相機(jī)信息字典
const CFStringRef kCGImagePropertyMakerNikonDictionary;
//柯尼卡相機(jī)信息字典
const CFStringRef kCGImagePropertyMakerMinoltaDictionary;
//富士相機(jī)信息字典
const CFStringRef kCGImagePropertyMakerFujiDictionary;
//奧林巴斯相機(jī)信息字典
const CFStringRef kCGImagePropertyMakerOlympusDictionary;
//賓得相機(jī)信息字典
const CFStringRef kCGImagePropertyMakerPentaxDictionary;
//對應(yīng)Photoshop相片的信息字典
const CFStringRef kCGImageProperty8BIMDictionary;
//NDG信息字典
const CFStringRef kCGImagePropertyDNGDictionary ;
//ExifAux信息字典
const CFStringRef kCGImagePropertyExifAuxDictionary;
//OpenEXR信息字典
const CFStringRef kCGImagePropertyOpenEXRDictionary;
//Apple相機(jī)信息字典
const CFStringRef kCGImagePropertyMakerAppleDictionary ;
CGImageSourceCopyProperties方法返回的字典中還可能會有如下一個特殊的鍵
//對應(yīng)文件大小
const CFStringRef kCGImagePropertyFileSize;
CGImageSourceCopyPropertiesAtIndex方法中可能包含的特殊鍵：
//像素高度
const CFStringRef kCGImagePropertyPixelHeight;
//像素寬度
const CFStringRef kCGImagePropertyPixelWidth;
//DPI高度
const CFStringRef kCGImagePropertyDPIHeight;
//DPI寬度
const CFStringRef kCGImagePropertyDPIWidth;
//顏色位數(shù)
const CFStringRef kCGImagePropertyDepth;
//圖片的顯示方向
/*
對應(yīng)Number值
* 1 = 左上到右下.
* 2 = 右上到左下.
* 3 = 右下到左上.
* 4 = 左下到右上.
* 5 = 行列置換 左上到右下.
* 6 = 行列置換 右上到左下.
* 7 = 行列置換 右下到左上.
* 8 = 行列置換 左下到右上.
*/
const CFStringRef kCGImagePropertyOrientation;
//顏色是否支持浮點(diǎn)數(shù)
const CFStringRef kCGImagePropertyIsFloat;
//圖像是否包含像素樣本
const CFStringRef kCGImagePropertyIsIndexed;
//圖像是否包含alpha通道
const CFStringRef kCGImagePropertyHasAlpha;
//圖像的顏色模式
const CFStringRef kCGImagePropertyColorModel;
//嵌入圖片的ICC配置文件名稱
const CFStringRef kCGImagePropertyProfileName;
kCGImagePropertyColorModel鍵可返回的值有如下幾種定義：
//RBG模式
const CFStringRef kCGImagePropertyColorModelRGB;
//Gray模式
const CFStringRef kCGImagePropertyColorModelGray;
//CMYK模式
const CFStringRef kCGImagePropertyColorModelCMYK;
//Lab模式
const CFStringRef kCGImagePropertyColorModelLab;
kCGImagePropertyTIFFDictionary鍵可返回的值定義如下：
//圖片數(shù)據(jù)壓縮方案
const CFStringRef kCGImagePropertyTIFFCompression;
//圖片數(shù)據(jù)的色彩空間
const CFStringRef kCGImagePropertyTIFFPhotometricInterpretation;
//文檔名稱
const CFStringRef kCGImagePropertyTIFFDocumentName;
//圖片描述
const CFStringRef kCGImagePropertyTIFFImageDescription;
//相機(jī)設(shè)備名
const CFStringRef kCGImagePropertyTIFFMake;
//相機(jī)設(shè)備模式
const CFStringRef kCGImagePropertyTIFFModel;
//圖片方向
const CFStringRef kCGImagePropertyTIFFOrientation;
//橫向每個分辨位的像素數(shù)
const CFStringRef kCGImagePropertyTIFFXResolution;
//縱向每個分辨位的像素數(shù)
const CFStringRef kCGImagePropertyTIFFYResolution;
//分辨率單位
const CFStringRef kCGImagePropertyTIFFResolutionUnit;
//創(chuàng)建圖像的軟件名稱和版本
const CFStringRef kCGImagePropertyTIFFSoftware;
//transform函數(shù)
const CFStringRef kCGImagePropertyTIFFTransferFunction;
//日期時間
const CFStringRef kCGImagePropertyTIFFDateTime;
//作者
const CFStringRef kCGImagePropertyTIFFArtist;
//創(chuàng)建圖片的電腦系統(tǒng)
const CFStringRef kCGImagePropertyTIFFHostComputer;
//公司信息
const CFStringRef kCGImagePropertyTIFFCopyright;
//圖片的白點(diǎn)
const CFStringRef kCGImagePropertyTIFFWhitePoint;
//圖像的原色色度
const CFStringRef kCGImagePropertyTIFFPrimaryChromaticities;
//圖片的瓦片寬度
const CFStringRef kCGImagePropertyTIFFTileWidth;
//圖片的瓦片高度
const CFStringRef kCGImagePropertyTIFFTileLength;
kCGImagePropertyJFIFDictionary對應(yīng)的字典中可能包含如下意義的鍵：
//JFIF版本
const CFStringRef kCGImagePropertyJFIFVersion;
//橫向像素密度
const CFStringRef kCGImagePropertyJFIFXDensity;
//縱向像素密度
const CFStringRef kCGImagePropertyJFIFYDensity;
//像素密度單元
const CFStringRef kCGImagePropertyJFIFDensityUnit;
//是否是高質(zhì)量圖像版本
const CFStringRef kCGImagePropertyJFIFIsProgressive;
kCGImagePropertyExifDictionary對應(yīng)的字典中可能包含如下意義的鍵 ：
//曝光時間
const CFStringRef kCGImagePropertyExifExposureTime;
//ExifNumber
const CFStringRef kCGImagePropertyExifFNumber;
//曝光程序
const CFStringRef kCGImagePropertyExifExposureProgram;
//每個通道的光譜靈敏度
const CFStringRef kCGImagePropertyExifSpectralSensitivity;
//ISO速度等級
const CFStringRef kCGImagePropertyExifISOSpeedRatings;
//ExifOECF
const CFStringRef kCGImagePropertyExifOECF;
//靈敏類型
const CFStringRef kCGImagePropertyExifSensitivityType;
//輸出靈敏標(biāo)準(zhǔn)
const CFStringRef kCGImagePropertyExifStandardOutputSensitivity;
//推薦曝光指數(shù)
const CFStringRef kCGImagePropertyExifRecommendedExposureIndex;
//ISO速率
const CFStringRef kCGImagePropertyExifISOSpeed;
const CFStringRef kCGImagePropertyExifISOSpeedLatitudeyyy;
const CFStringRef kCGImagePropertyExifISOSpeedLatitudezzz;
//Exif版本
const CFStringRef kCGImagePropertyExifVersion;
//原始日期時間
const CFStringRef kCGImagePropertyExifDateTimeOriginal;
//數(shù)字化日期時間
const CFStringRef kCGImagePropertyExifDateTimeDigitized;
//壓縮配置
const CFStringRef kCGImagePropertyExifComponentsConfiguration;
//壓縮模式像素位
const CFStringRef kCGImagePropertyExifCompressedBitsPerPixel;
//快門速度值
const CFStringRef kCGImagePropertyExifShutterSpeedValue;
//孔徑值
const CFStringRef kCGImagePropertyExifApertureValue;
//亮度值
const CFStringRef kCGImagePropertyExifBrightnessValue;
//曝光偏差值
const CFStringRef kCGImagePropertyExifExposureBiasValue;
//最大光圈值
const CFStringRef kCGImagePropertyExifMaxApertureValue;
//距離
const CFStringRef kCGImagePropertyExifSubjectDistance;
//測光模式
const CFStringRef kCGImagePropertyExifMeteringMode;
//光源
const CFStringRef kCGImagePropertyExifLightSource;
//拍攝時的閃光狀態(tài)
const CFStringRef kCGImagePropertyExifFlash;
//焦距
const CFStringRef kCGImagePropertyExifFocalLength;
//主體區(qū)域
const CFStringRef kCGImagePropertyExifSubjectArea;
//相機(jī)制造商指定的信息
const CFStringRef kCGImagePropertyExifMakerNote;
//用戶信息
const CFStringRef kCGImagePropertyExifUserComment;
//日期和時間標(biāo)記的秒分?jǐn)?shù)
const CFStringRef kCGImagePropertyExifSubsecTime;
//原始時間
const CFStringRef kCGImagePropertyExifSubsecTimeOriginal;
//數(shù)字時間
const CFStringRef kCGImagePropertyExifSubsecTimeDigitized;
//FlashPix版本信息
const CFStringRef kCGImagePropertyExifFlashPixVersion;
//色彩空間
const CFStringRef kCGImagePropertyExifColorSpace;
//X方向像素
const CFStringRef kCGImagePropertyExifPixelXDimension;
//Y方向像素
const CFStringRef kCGImagePropertyExifPixelYDimension;
//與圖像相關(guān)的聲音文件
const CFStringRef kCGImagePropertyExifRelatedSoundFile;
//FlashEnergy
const CFStringRef kCGImagePropertyExifFlashEnergy;
//FrequencyResponse
const CFStringRef kCGImagePropertyExifSpatialFrequencyResponse;
//像素數(shù)目
const CFStringRef kCGImagePropertyExifFocalPlaneXResolution;
const CFStringRef kCGImagePropertyExifFocalPlaneYResolution;
const CFStringRef kCGImagePropertyExifFocalPlaneResolutionUnit;
//圖像主體的位置
const CFStringRef kCGImagePropertyExifSubjectLocation;
//選擇的曝光指數(shù)
const CFStringRef kCGImagePropertyExifExposureIndex;
//傳感器類型
const CFStringRef kCGImagePropertyExifSensingMethod;
//圖像文件源
const CFStringRef kCGImagePropertyExifFileSource;
//場景類型
const CFStringRef kCGImagePropertyExifSceneType;
//CFA模塊
const CFStringRef kCGImagePropertyExifCFAPattern;
//對圖像數(shù)據(jù)進(jìn)行特殊渲染
const CFStringRef kCGImagePropertyExifCustomRendered;
//曝光模式設(shè)置
const CFStringRef kCGImagePropertyExifExposureMode;
//白平衡模式
const CFStringRef kCGImagePropertyExifWhiteBalance;
//數(shù)字變焦比
const CFStringRef kCGImagePropertyExifDigitalZoomRatio;
//35毫米膠片的等效焦距
const CFStringRef kCGImagePropertyExifFocalLenIn35mmFilm;
//場景捕捉類型（標(biāo)準(zhǔn)，景觀屈嗤，肖像潘拨，夜晚）
const CFStringRef kCGImagePropertyExifSceneCaptureType;
//圖像增益
const CFStringRef kCGImagePropertyExifGainControl;
//圖像對比度
const CFStringRef kCGImagePropertyExifContrast;
//圖像飽和度
const CFStringRef kCGImagePropertyExifSaturation;
//圖像銳度
const CFStringRef kCGImagePropertyExifSharpness;
//拍攝條件
const CFStringRef kCGImagePropertyExifDeviceSettingDescription;
//主體距離
const CFStringRef kCGImagePropertyExifSubjectDistRange;
//圖像的唯一標(biāo)識
const CFStringRef kCGImagePropertyExifImageUniqueID;
//相機(jī)所有者
const CFStringRef kCGImagePropertyExifCameraOwnerName;
//相機(jī)序列號
const CFStringRef kCGImagePropertyExifBodySerialNumber;
//透鏡規(guī)格信息
const CFStringRef kCGImagePropertyExifLensSpecification;
//透鏡制造商名稱
const CFStringRef kCGImagePropertyExifLensMake;
//透鏡模式
const CFStringRef kCGImagePropertyExifLensModel;
//透鏡序列號
const CFStringRef kCGImagePropertyExifLensSerialNumber;
//伽馬設(shè)置
const CFStringRef kCGImagePropertyExifGamma;
kCGImagePropertyExifAuxDictionary對應(yīng)的字典中可能包含的鍵定義如下：
//鏡頭信息
const CFStringRef kCGImagePropertyExifAuxLensInfo;
//鏡頭模式
const CFStringRef kCGImagePropertyExifAuxLensModel;
//序列號
const CFStringRef kCGImagePropertyExifAuxSerialNumber;
//鏡頭ID
const CFStringRef kCGImagePropertyExifAuxLensID;
//鏡頭序列號
const CFStringRef kCGImagePropertyExifAuxLensSerialNumber;
//圖片編號
const CFStringRef kCGImagePropertyExifAuxImageNumber;
//閃光補(bǔ)償
const CFStringRef kCGImagePropertyExifAuxFlashCompensation;
//所有者名稱
const CFStringRef kCGImagePropertyExifAuxOwnerName;
//固件信息
const CFStringRef kCGImagePropertyExifAuxFirmware;
kCGImagePropertyGIFDictionary對應(yīng)的字典中可能包含的鍵定義如下
//動畫循環(huán)次數(shù)
const CFStringRef kCGImagePropertyGIFLoopCount;
//兩幀之間的延時
const CFStringRef kCGImagePropertyGIFDelayTime;
//顏色Map
const CFStringRef kCGImagePropertyGIFImageColorMap;
const CFStringRef kCGImagePropertyGIFHasGlobalColorMap;
//兩幀之間的延時
const CFStringRef kCGImagePropertyGIFUnclampedDelayTime;
kCGImagePropertyPNGDictionary對應(yīng)的字典中可能包含的鍵定義如下：
//PNG伽馬值
const CFStringRef kCGImagePropertyPNGGamma;
//混合類型
const CFStringRef kCGImagePropertyPNGInterlaceType;
//X方向像素數(shù)
const CFStringRef kCGImagePropertyPNGXPixelsPerMeter;
//Y方向像素數(shù)
const CFStringRef kCGImagePropertyPNGYPixelsPerMeter;
//RGB意圖
const CFStringRef kCGImagePropertyPNGsRGBIntent;
//色度
const CFStringRef kCGImagePropertyPNGChromaticities;
//作者
const CFStringRef kCGImagePropertyPNGAuthor;
//公司
const CFStringRef kCGImagePropertyPNGCopyright;
//創(chuàng)建時間
const CFStringRef kCGImagePropertyPNGCreationTime;
//描述
const CFStringRef kCGImagePropertyPNGDescription;
//最后修改日期時間
const CFStringRef kCGImagePropertyPNGModificationTime;
//軟件
const CFStringRef kCGImagePropertyPNGSoftware;
//標(biāo)題
const CFStringRef kCGImagePropertyPNGTitle;
//動畫循環(huán)次數(shù)
const CFStringRef kCGImagePropertyAPNGLoopCount;
//兩幀之間的延時
const CFStringRef kCGImagePropertyAPNGDelayTime;
const CFStringRef kCGImagePropertyAPNGUnclampedDelayTime;
kCGImagePropertyGPSDictionary對應(yīng)的字典中可能包含的鍵定義如下：
//GPS版本
const CFStringRef kCGImagePropertyGPSVersion;
//緯度是南緯或北緯
const CFStringRef kCGImagePropertyGPSLatitudeRef;
//緯度
const CFStringRef kCGImagePropertyGPSLatitude;
//經(jīng)度是東經(jīng)或西經(jīng)
const CFStringRef kCGImagePropertyGPSLongitudeRef;
//經(jīng)度
const CFStringRef kCGImagePropertyGPSLongitude;
//海拔標(biāo)準(zhǔn)
const CFStringRef kCGImagePropertyGPSAltitudeRef;
//海拔高度
const CFStringRef kCGImagePropertyGPSAltitude;
//時間戳
const CFStringRef kCGImagePropertyGPSTimeStamp;
//測量GPS的衛(wèi)星
const CFStringRef kCGImagePropertyGPSSatellites;
//GPS狀態(tài)
const CFStringRef kCGImagePropertyGPSStatus;
//測量模式
const CFStringRef kCGImagePropertyGPSMeasureMode;
//精度數(shù)據(jù)
const CFStringRef kCGImagePropertyGPSDOP;
//速度標(biāo)準(zhǔn)
const CFStringRef kCGImagePropertyGPSSpeedRef;
//速度
const CFStringRef kCGImagePropertyGPSSpeed;
//運(yùn)動方向參考
const CFStringRef kCGImagePropertyGPSTrackRef;
//運(yùn)動方向
const CFStringRef kCGImagePropertyGPSTrack;
//位置方向參考
const CFStringRef kCGImagePropertyGPSImgDirectionRef;
//位置方向
const CFStringRef kCGImagePropertyGPSImgDirection;
//地圖測量數(shù)據(jù)
const CFStringRef kCGImagePropertyGPSMapDatum;
//地理緯度南緯或北緯
const CFStringRef kCGImagePropertyGPSDestLatitudeRef;
//地理緯度
const CFStringRef kCGImagePropertyGPSDestLatitude;
//地理經(jīng)度 東經(jīng)或西經(jīng)
const CFStringRef kCGImagePropertyGPSDestLongitudeRef;
//地理經(jīng)度
const CFStringRef kCGImagePropertyGPSDestLongitude;
//方位參照
const CFStringRef kCGImagePropertyGPSDestBearingRef;
//地理方位
const CFStringRef kCGImagePropertyGPSDestBearing;
//距離參照
const CFStringRef kCGImagePropertyGPSDestDistanceRef;
//距離
const CFStringRef kCGImagePropertyGPSDestDistance;
//查找地理位置的方法
const CFStringRef kCGImagePropertyGPSProcessingMethod;
//GPS地區(qū)名
const CFStringRef kCGImagePropertyGPSAreaInformation;
//日期時間
const CFStringRef kCGImagePropertyGPSDateStamp;
//校正信息
const CFStringRef kCGImagePropertyGPSDifferental;
//錯誤信息
const CFStringRef kCGImagePropertyGPSHPositioningError;
kCGImagePropertyIPTCDictionary對應(yīng)的字典中可能包含的鍵定義如下：
//對象類型
const CFStringRef kCGImagePropertyIPTCObjectTypeReference;
//對象屬性
const CFStringRef kCGImagePropertyIPTCObjectAttributeReference;
//對象名稱
const CFStringRef kCGImagePropertyIPTCObjectName;
//編輯狀態(tài)
const CFStringRef kCGImagePropertyIPTCEditStatus;
//更新狀態(tài)
const CFStringRef kCGImagePropertyIPTCEditorialUpdate;
//緊急等級
const CFStringRef kCGImagePropertyIPTCUrgency;
//主體
const CFStringRef kCGImagePropertyIPTCSubjectReference;
//類別
const CFStringRef kCGImagePropertyIPTCCategory;
//補(bǔ)充類別
const CFStringRef kCGImagePropertyIPTCSupplementalCategory;
//Fixture標(biāo)識
const CFStringRef kCGImagePropertyIPTCFixtureIdentifier;
//關(guān)鍵字
const CFStringRef kCGImagePropertyIPTCKeywords;
//內(nèi)容定位碼
const CFStringRef kCGImagePropertyIPTCContentLocationCode;
//內(nèi)容位置名稱
const CFStringRef kCGImagePropertyIPTCContentLocationName;
//圖像使用的最早日期
const CFStringRef kCGImagePropertyIPTCReleaseDate;
//圖像使用的最早時間
const CFStringRef kCGImagePropertyIPTCReleaseTime;
//最后一次使用日期
const CFStringRef kCGImagePropertyIPTCExpirationDate;
//最后一次使用時間
const CFStringRef kCGImagePropertyIPTCExpirationTime;
//圖像使用的特別說明
const CFStringRef kCGImagePropertyIPTCSpecialInstructions;
//建議行為
const CFStringRef kCGImagePropertyIPTCActionAdvised;
//服務(wù)參考
const CFStringRef kCGImagePropertyIPTCReferenceService;
//日期參考
const CFStringRef kCGImagePropertyIPTCReferenceDate;
//參考碼
const CFStringRef kCGImagePropertyIPTCReferenceNumber;
//創(chuàng)建日期
const CFStringRef kCGImagePropertyIPTCDateCreated;
//創(chuàng)建時間
const CFStringRef kCGImagePropertyIPTCTimeCreated;
//數(shù)字創(chuàng)建日期
const CFStringRef kCGImagePropertyIPTCDigitalCreationDate;
//數(shù)字創(chuàng)建時間
const CFStringRef kCGImagePropertyIPTCDigitalCreationTime;
//原始程序
const CFStringRef kCGImagePropertyIPTCOriginatingProgram;
//程序版本
const CFStringRef kCGImagePropertyIPTCProgramVersion;
圖像的編輯周期（早晨，晚上或兩者）饶号。
const CFStringRef kCGImagePropertyIPTCObjectCycle;
//不想創(chuàng)建者名稱
const CFStringRef kCGImagePropertyIPTCByline;
//圖像創(chuàng)建標(biāo)題
const CFStringRef kCGImagePropertyIPTCBylineTitle;
//城市信息
const CFStringRef kCGImagePropertyIPTCCity;
//城市內(nèi)位置
const CFStringRef kCGImagePropertyIPTCSubLocation;
//省份
const CFStringRef kCGImagePropertyIPTCProvinceState;
//國家編碼
const CFStringRef kCGImagePropertyIPTCCountryPrimaryLocationCode;
//國家名稱
const CFStringRef kCGImagePropertyIPTCCountryPrimaryLocationName;
//OriginalTransmission參考
const CFStringRef kCGImagePropertyIPTCOriginalTransmissionReference;
//圖像內(nèi)容摘要
const CFStringRef kCGImagePropertyIPTCHeadline;
//提供圖像服務(wù)的名稱
const CFStringRef kCGImagePropertyIPTCCredit;
//圖像源
const CFStringRef kCGImagePropertyIPTCSource;
//公司提示
const CFStringRef kCGImagePropertyIPTCCopyrightNotice;
//聯(lián)系人
const CFStringRef kCGImagePropertyIPTCContact;
//描述
const CFStringRef kCGImagePropertyIPTCCaptionAbstract;
//圖像編輯者
const CFStringRef kCGImagePropertyIPTCWriterEditor;
//圖像類型
const CFStringRef kCGImagePropertyIPTCImageType;
//方向信息
const CFStringRef kCGImagePropertyIPTCImageOrientation;
//語言信息
const CFStringRef kCGImagePropertyIPTCLanguageIdentifier;
//星級
const CFStringRef kCGImagePropertyIPTCStarRating;
//聯(lián)系人詳細(xì)信息
const CFStringRef kCGImagePropertyIPTCCreatorContactInfo;
//圖像使用權(quán)限
const CFStringRef kCGImagePropertyIPTCRightsUsageTerms;
//場景代碼
const CFStringRef kCGImagePropertyIPTCScene;
上面的kCGImagePropertyIPTCCreatorContactInfo對應(yīng)的字典中鍵的定義如下：
//聯(lián)系人城市
const CFStringRef kCGImagePropertyIPTCContactInfoCity;
//聯(lián)系人國家
const CFStringRef kCGImagePropertyIPTCContactInfoCountry;
//聯(lián)系人地址
const CFStringRef kCGImagePropertyIPTCContactInfoAddress;
//郵編
const CFStringRef kCGImagePropertyIPTCContactInfoPostalCode;
//省份
const CFStringRef kCGImagePropertyIPTCContactInfoStateProvince;
//電子郵件
const CFStringRef kCGImagePropertyIPTCContactInfoEmails;
//電話
const CFStringRef kCGImagePropertyIPTCContactInfoPhones;
//網(wǎng)址
const CFStringRef kCGImagePropertyIPTCContactInfoWebURLs;
kCGImageProperty8BIMDictionary對應(yīng)的字典中可能包含的鍵定義如下：
//Photoshop文件的圖層名
const CFStringRef kCGImageProperty8BIMLayerNames;
//版本
const CFStringRef kCGImageProperty8BIMVersion;
kCGImagePropertyDNGDictionary對應(yīng)的字典中可能包含的鍵定義如下：
//DNG版本
const CFStringRef kCGImagePropertyDNGVersion;
//兼容的最老版本
const CFStringRef kCGImagePropertyDNGBackwardVersion;
//攝像機(jī)模型
const CFStringRef kCGImagePropertyDNGUniqueCameraModel;
const CFStringRef kCGImagePropertyDNGLocalizedCameraModel;
//相機(jī)序列碼
const CFStringRef kCGImagePropertyDNGCameraSerialNumber;
//鏡頭信息
const CFStringRef kCGImagePropertyDNGLensInfo;
//黑度等級
const CFStringRef kCGImagePropertyDNGBlackLevel;
//白度等級
const CFStringRef kCGImagePropertyDNGWhiteLevel;
const CFStringRef kCGImagePropertyDNGCalibrationIlluminant1;
const CFStringRef kCGImagePropertyDNGCalibrationIlluminant2;
const CFStringRef kCGImagePropertyDNGColorMatrix1;
const CFStringRef kCGImagePropertyDNGColorMatrix2;
const CFStringRef kCGImagePropertyDNGCameraCalibration1;
const CFStringRef kCGImagePropertyDNGCameraCalibration2;
const CFStringRef kCGImagePropertyDNGAsShotNeutral;
const CFStringRef kCGImagePropertyDNGAsShotWhiteXY;
const CFStringRef kCGImagePropertyDNGBaselineExposure;
const CFStringRef kCGImagePropertyDNGBaselineNoise;
const CFStringRef kCGImagePropertyDNGBaselineSharpness;
const CFStringRef kCGImagePropertyDNGPrivateData;
const CFStringRef kCGImagePropertyDNGCameraCalibrationSignature;
const CFStringRef kCGImagePropertyDNGProfileCalibrationSignature;
const CFStringRef kCGImagePropertyDNGNoiseProfile;
const CFStringRef kCGImagePropertyDNGWarpRectilinear;
const CFStringRef kCGImagePropertyDNGWarpFisheye;
const CFStringRef kCGImagePropertyDNGFixVignetteRadial;
kCGImagePropertyCIFFDictionary對應(yīng)的字典中可能包含的鍵定義如下：
//相機(jī)信息
const CFStringRef kCGImagePropertyCIFFDescription;
//固件版本
const CFStringRef kCGImagePropertyCIFFFirmware;
//所有者名稱
const CFStringRef kCGImagePropertyCIFFOwnerName;
//圖片名
const CFStringRef kCGImagePropertyCIFFImageName;
//圖片文件名
const CFStringRef kCGImagePropertyCIFFImageFileName;
//曝光方式
const CFStringRef kCGImagePropertyCIFFReleaseMethod;
//曝光時間
const CFStringRef kCGImagePropertyCIFFReleaseTiming;
//RecordID
const CFStringRef kCGImagePropertyCIFFRecordID;
//曝光時間
const CFStringRef kCGImagePropertyCIFFSelfTimingTime;
//相機(jī)序列號
const CFStringRef kCGImagePropertyCIFFCameraSerialNumber;
//圖片編碼
const CFStringRef kCGImagePropertyCIFFImageSerialNumber;
//驅(qū)動模式
const CFStringRef kCGImagePropertyCIFFContinuousDrive);
//焦點(diǎn)模式
const CFStringRef kCGImagePropertyCIFFFocusMode;
//測量模式
const CFStringRef kCGImagePropertyCIFFMeteringMode;
//曝光模式
const CFStringRef kCGImagePropertyCIFFShootingMode;
//透鏡模式
const CFStringRef kCGImagePropertyCIFFLensModel;
//最長鏡頭長度
const CFStringRef kCGImagePropertyCIFFLensMaxMM;
//最短鏡頭長度
const CFStringRef kCGImagePropertyCIFFLensMinMM;
//白平衡等級
const CFStringRef kCGImagePropertyCIFFWhiteBalanceIndex;
//曝光補(bǔ)償
const CFStringRef kCGImagePropertyCIFFFlashExposureComp;
//實(shí)測曝光值
const CFStringRef kCGImagePropertyCIFFMeasuredEV);
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