Re: [Openimaj-discuss] Serializing ByteDSIFTKeypoints

[Jonathon H. <js...@ec...>]

Do something like this (will automatically write the complete list of features without need to iterate through them):


ByteArrayOutputStream baos = new ByteArrayOutputStream();

org.openimaj.io.IOUtils.writeBinary(baos, features);

byte[] bytes = baos.toByteArray();





> On 16 Jun 2015, at 11:19, chalitha udara Perera <cha...@gm...> wrote:
> 
> Hi All,
> I have extracted LocalFeaturesList<ByteDSIFTKeypoint> using Pyramid Dense Sift in OpenIMAJ. 
> As indicated in API documentation, ByteDSIFTKeypoint implements Java Serializable interface and there fore I would like to serialize keypoints for latter use. 
> I tried to serialize keypoints to get a byte array. But when retrieving key-points from the serialized object it loses all field values associated with it. 
> 
> I am using the following code for serialization
> 
> ByteArrayOutputStream baos = new ByteArrayOutputStream();
> 
> ObjectOutputStream oos = new ObjectOutputStream(baos);
> 
> 
> LocalFeatureList<ByteDSIFTKeypoint> features = psift.getByteKeypoints();
> 
> for (ByteDSIFTKeypoint byteDSIFTKeypoint : features) {
> 
> 
> oos.writeObject(byteDSIFTKeypoint);
> 
> 
> byte[] bytes = baos.toByteArray();
> 
> }
> 
> 
> 
> Any help regarding how to correctly serialize keypoints is greatly appreciated.
> 
> Thanks,
> 
> Chalitha
> 
> 
> -- 
> J.M Chalitha Udara Perera
> 
> Department of Computer Science and Engineering,
> University of Moratuwa,
> Sri Lanka
> ------------------------------------------------------------------------------
> _______________________________________________
> openimaj-discuss mailing list
> ope...@li...
> https://lists.sourceforge.net/lists/listinfo/openimaj-discuss