net.semanticmetadata.lire.imageanalysis.features.global.correlogram

类 DynamicProgrammingAutoCorrelogramExtraction

java.lang.Object

net.semanticmetadata.lire.imageanalysis.features.global.correlogram.DynamicProgrammingAutoCorrelogramExtraction

所有已实现的接口:

IAutoCorrelogramFeatureExtractor

public class DynamicProgrammingAutoCorrelogramExtraction
extends java.lang.Object
implements IAutoCorrelogramFeatureExtractor

DynamicProgrammingAutoCorrelogramExtraction is an implementation of dynamic programming approach to build auto-correlogram feature vector from images. It is based on Huang et al paper, "Image Indexing Using Color Correlograms", CVPR1997. J Huang, S. R Kumar, M. Mitra, W. Zhu, R. Zabih

作者:

Rodrigo Carvalho Rezende http://www.rodrigorezende.net/

I noticed that although this approach has teoretical complexity O(|I|*d) lower than a naive method O(|I|*d²), in practice is slower and consumes more memory. It is recomended to use only one object for each thread. So, it is recomended to change the way of instance this class.

字段概要

字段

限定符和类型	字段和说明
static DynamicProgrammingAutoCorrelogramExtraction	instance

方法概要

限定符和类型	方法和说明
float[][]	extract(int maxFeatureValue, int[] distanceSet, int[][] img) extract extracts an auto-correlogram from an Image Not thread safe, use one object per thread.
static DynamicProgrammingAutoCorrelogramExtraction	getInstance()
static void	main(java.lang.String[] args)

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

字段详细资料

instance

public static final DynamicProgrammingAutoCorrelogramExtraction instance

方法详细资料

getInstance

public static final DynamicProgrammingAutoCorrelogramExtraction getInstance()

extract

public float[][] extract(int maxFeatureValue,
                         int[] distanceSet,
                         int[][] img)

extract extracts an auto-correlogram from an Image Not thread safe, use one object per thread.

指定者:

extract 在接口中 IAutoCorrelogramFeatureExtractor

参数:

maxFeatureValue - the maximum color value

distanceSet - the distance windows of auto-correlogram

img - the image

返回:

float[][] the auto-correlogram A[color][distance]

main

public static void main(java.lang.String[] args)