我使用该代码从jpeg文件中获取exif信息。数据不包括有关相机和镜头制造商的信息。
- (IBAction)readThis:(id)sender
{
NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
NSString * fileName = @"/Users/joe/img.jpg" ;
NSFileManager * fileManager = [NSFileManager defaultManager] ;
if ([fileManager fileExistsAtPath:fileName])
{
NSBitmapImageRep * imageTest = [NSBitmapImageRep imageRepWithContentsOfFile:fileName] ;
NSLog(@"Exif Data in %@ : %@",fileName, [imageTest valueForProperty:@"NSImageEXIFData"]) ;
}
else
NSLog(@"File %@ not found !",fileName) ;
[pool release];
}
如何获取有关相机和镜头制造商的数据?