Filtered-ALAsset.m

ALAssetRepresentation *rep =  [asset defaultRepresentation];
NSDictionary *dict = [rep metadata];
NSString *xmp = dict[@"AdjustmentXMP"];
NSData *xmpData = [xmp dataUsingEncoding:NSUTF8StringEncoding];
        
NSError *e = nil;
NSArray *filters = [CIFilter filterArrayFromSerializedXMP:xmpData inputImageExtent:CGRectZero error:&e];
CIFilter *filter = [filters firstObject];
CIImage *image =[CIImage imageWithCGImage: [rep fullScreenImage]];
[filter setValue:image forKey:kCIInputImageKey];
CIImage *outputImage = [filter outputImage];
UIImage *filteredImage = [UIImage imageWithCIImage:outputImage];