Refinements to the Fry method (1979) using image processing

Laurent Ailleres, Michel Champenois

Research output: Contribution to journalArticleResearchpeer-review

12 Citations (Scopus)


The Fry method is a very powerful way to determine the finite strain ellipse in a deformed rock, but the problems of reproducibility and objectivity of the measurements still remain. Using image processing, the program presented here extracts the central void from Normalized Fry diagrams and computes the characteristics of the best fitted ellipse. It runs automatically on Personal Computers, but remains interactive with the operator, as does the videographic image analyzer.

Original languageEnglish
Pages (from-to)1327-1330
Number of pages4
JournalJournal of Structural Geology
Issue number9
Publication statusPublished - 1 Jan 1994
Externally publishedYes

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