ratioingn.
/ˈreɪʃɪəʊɪŋ/, U.S. /ˈreɪʃ(i)oʊɪŋ/ The calculation, measurement, or use of ratios; the action or process of ratioing something; spec. the selective enhancement of different components of an image.
ΚΠ
1908 Elem. School Teacher 8 373 Arithmetic work should be based on measuring, rather than on counting, ratioing, [etc.].
1963 Jrnl. Molecular Spectrosc. 11 232 Fig. 2 shows the 0.25-cm−1 resolution spectrum, without background ratioing.
1978 Nature 9 Mar. 142/2 This ratioing operation reduces the effective amplitude fluctuations of the laser by more than 100-fold.
1981 Sci. Amer. Oct. 136 (caption) The enhanced image at the bottom has been subjected to a color ‘ratioing’ process to accentuate the contrast between features of the landscape.
1994 T. Dargie & P. A. Furley in P. A. Furley Forest Frontier iii. 78 Filtering, ratioing and principal components analysis were then used in order to maximise the differentiation of the vegetation communities.
2006 Cell Calcium 40 77/2 Time-correlated fluorescence imaging represents an accurate and versatile alternative to intensity-based ratioing approaches.
This entry has been updated (OED Third Edition, December 2008; most recently modified version published online March 2022).
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