User: Arnaud Duranel

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a****************@ucl.ac.uk

Posts by Arnaud Duranel

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Comment: C: EBImage: filtering in the presence of NAs
... Dear Wolfgang Many thanks for your reply. I am sorry I lack the theoretical knowledge in maths and image processing that would probably be necessary to clearly explain what I need and fully benefit from your advice, so my apologies for this. I found a work-around using the focal() function of the ra ...
written 6.0 years ago by Arnaud Duranel60
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EBImage: filtering in the presence of NAs
... Hello None of the EBImage filtering functions seems to work when there are NAs in the image: library(EBImage) lenac = readImage(system.file("images", "lena-color.png", package="EBImage")) lenag<-channel(lenac, 'gray') lenag[1:50, ]<-NA flo = makeBrush(21, shape='disc', step=FALSE)^2 flo = fl ...
process ebimage written 6.0 years ago by Arnaud Duranel60 • updated 6.0 years ago by Wolfgang Huber13k
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get pixel coordinates interactively with EBimage
... Hello I am using R 2.13.0 & EBImage 3.8.0. I am looking for a way to obtain a pixel coordinates (as an R object) by clicking interactively on an image displayed in the GTK window using the EBImage display() function. I could use locator() after having converted the image to grayscale and display ...
ebimage written 6.2 years ago by Arnaud Duranel60 • updated 23 months ago by Andrzej Oleś720

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