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Fig. 3 | BMC Bioinformatics

Fig. 3

From: AutoCryoPicker: an unsupervised learning approach for fully automated single particle picking in Cryo-EM images

Fig. 3

Contrast transfer correction and adjustment process. a Illustration of the cryo-EM image histogram after the averaging and normalization step using EMAN2 and the a two-element vector that consists of the low and the upper intensity limits by default. The values in low_high specify the bottom 2% and the top 2% of all pixel values. b Illustration of the cryo-EM histogram (Histogram shrinking) after automatically detecting and specifying the low and high intensity range (e.g. [0.2–0.8])

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