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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Evaluation and assessment of homogeneity in images. Part 2: Homogeneity assessment on single channel non-binary images. Blending end-point detection as example

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da Silva, Neirivaldo Cavalcante [1] ; Franca, Leandro de Moura [2] ; Amigo, Jose Manuel [3, 4] ; Bautista, Manel [5] ; Pimentel, Maria Fernanda [1]
Total Authors: 5
[1] Univ Fed Pernambuco, Dept Chem Engn, Recife, PE - Brazil
[2] Univ Fed Pernambuco, Dept Pharm, Recife, PE - Brazil
[3] Univ Fed Pernambuco, Dept Fundamental Chem, Recife, PE - Brazil
[4] Univ Copenhagen, Fac Sci, Dept Food Sci, Rolighedsvej 30, DK-1958 Frederiksberg C - Denmark
[5] Novartis Pharrna AG, CH-4056 Basel - Switzerland
Total Affiliations: 5
Document type: Journal article
Web of Science Citations: 0

This paper demonstrates that the use of the homogeneity curve approach introduced in the first part of this work for assessing the unique homogeneity percentage (%H) can also be applied in single channel non-binary (SCNB) images (a.k.a grayscale images) analysis. In order to address a more general homogeneity index approach for SCNB images, more realistic assumptions such as the presence of divisible objects or the mixture of different objects in the same pixel, are considered. The proposed parameter, %H, is an absolute homogeneity percentage that uses only the self-contained information of one image, with no need for additional modelling steps, as described in most of the works addressing the homogeneity assessment. To demonstrate it, two cases have been evaluated. The first case validates the %H by assessing the homogeneity in images with different textures (distribution of objects). In the second case, the reliability of assessing the evolution of homogeneity and providing an end-point detection in blending process trials done at small scale has been evaluated. The results obtained in the current work show the high potential when using the %H for industrial applications where the distributional homogeneity represents a critical process parameter to ensure the quality of the final product. (AU)

FAPESP's process: 08/57808-1 - National Institute of Advanced Analytical Science and Technology
Grantee:Celio Pasquini
Support type: Research Projects - Thematic Grants