在 Objective-c 中从 exif 获取相机和镜头
我使用该代码从 jpeg 文件获取 exif 信息。该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];
}
如何获取相机和镜头制造商的数据?
I use that code to get exif information from jpeg file. The data not include information about camera and lens manufacturer.
- (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];
}
How to get data about camera and lens manufacturer ?
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您可以使用 ImageIO 框架。请参阅此链接以设置和获取图像元数据。
You can use ImageIO framework. Refer this link for setting and getting image metadata.