iphone - 以字典形式存储图像 EXIF 元数据

Question

我想将图像的 EXIF 数据存储在 DictRequest.

我该怎么做？请帮我

下面是代码：

ALAssetRepresentation *rep = [temp defaultRepresentation];

StrPath = [StrPath stringByAppendingFormat:@"%d.%@",(int)timeInterval,strImageType];

UIImage *image = [UIImage imageWithCGImage:[rep fullResolutionImage]];
NSLog(@"Image width %f Image height %f",image.size.width,image.size.height);

NSData *dataObj = nil;
dataObj = UIImageJPEGRepresentation(image, 1.0);

NSLog(@"Length of data %d",[dataObj length]);
NS    tring* StrFileData = [Base64 encode:dataObj];
NSString* strFileHash = [dataObj md5Test];

//----------------------------------------------------
NSMutableDictionary *DictRequest = [[NSMutableDictionary alloc]init];
[DictRequest setObject:srtprefSessionId forKey:@"SessionId"];
[DictRequest setObject:StrPath forKey:@"Path"];
[DictRequest setValue:[NSNumber numberWithBool:isTrash] forKey:@"UploadDirectlyToTrashbin"];
[DictRequest setObject:StrFileData forKey:@"FileData"];
[DictRequest setObject:strFileHash forKey:@"FileHash"];
[DictRequest setObject:result forKey:@"DateCreated"];

Answer 1

您可以使用 访问图像的元数据[rep metadata]。字典应包含 EXIF 数据。EXIF 数据不能通过 UIImage 对象访问。