1. Jameson, M.: Promises and challenges of digital libraries and document image analysis: a humanist’s perspective. In: International Workshop on Document Image Analysis for Libraries, Proceedings, pp. 54–61. IEEE (2004)
2. Singhai, N., Shandilya, S.K.: A survey on: content based image retrieval systems. Int. J. Comput. Appl. 4(2), 22–26 (2010)
3. Zheng, Q.C., Zeng, Z.Y., Chi, Y.L., et al.: Advanced image retrieval method based on color and SIFT feature. Comput. Syst. Appl. (2015)
4. Lu, Y., Tan, C.L.: Information retrieval in document image databases. IEEE Trans. Knowl. Data Eng. 16(11), 1398–1410 (2004)
5. Leydier, Y., Lebourgeois, F., Emptoz, H.: Text search for medieval manuscript images. Pattern Recogn. 40(12), 3552–3567 (2007)