Erratum to: Region-based image retrieval using shape-adaptive DCT

1 Erratum to: Int J Multimed Info Retr DOI 10.1007/s13735-015-0084-1

The content of Figs. 2 and 3 was inverted by mistake. Please find below Figs. 2 and 3 with the correct content. The original article was corrected.

We apologize for this carelessness.

Fig. 2

The process of forming texture-pattern: a three groups of AC coefficients extracted from DCT block, b sums of each group, c sums of squared-differences and d texture pattern

Fig. 3

Histogram of the first 50 AC-Patterns with highest frequency of occurrence (content-based image retrieval)