search for: readtiff

...e for reading tiff images into the Bioconductor Package EBImage. This has been extremely helpful in conjunction with other steps to eliminate dependencies on ImageMagick. However, it seems that 12-bit images are not supported. We were wondering if there are plans to extend the functionality of the readTIFF() function in the tiff package to accommodate 12-bit images? Best wishes, Joseph Barry (EMBL Heidelberg, Germany)

Dear all, I have been trying to speed up a process we have been done in ArcGIS. We have to read a single layer TIFF (monochrome image) in . For this, I have used the "rtiff" package. After reading the TIFF file, I compared the raw values for each pixel that I have in ArcGIS to the ones obtained in R. In ArcGIS I have discrete values in the range 0..255, while in R I have continuous

...Dee. I'm trying to write var data from these codes inside excel file. My directory to store the data is *D:\FYP\image* . these are my codes, can you help give an advice or idea with my problem: l*ibrary("biOps") library("waveslim") library("xlsReadWrite") x <- readTiff("D:\\FYP\\image\\SignatureImage\\user186g1.tif") y <- imgBlockMedianFilter(x, 5) #Plot image #plot(y) y.modwt <- modwt.2d(y, "la8", 2) ## Level 2 decomposition par(mfrow=c(2,2), pty="s") ##Plot wavelets image(y.modwt$LH2, col=rainbow(128), axes=FALSE, main=&quo...

...error message : /Error in write.xls(mydata, "D:\\FYP\\image.mydata.xls") : object 'mydata' not found/ these are my codes, can you help give an advice or idea with my problem: /library("biOps") library("waveslim") library("xlsReadWrite") x <- readTiff("D:\\FYP\\image\\SignatureImage\\user186g1.tif") y <- imgBlockMedianFilter(x, 5) #Plot image #plot(y) y.modwt <- modwt.2d(y, "la8", 2) ## Level 2 decomposition par(mfrow=c(2,2), pty="s") ##Plot wavelets image(y.modwt$LH2, col=rainbow(128), axes=FALSE, main="...

I wanted to ask Eric a question or two about the rtiff package, but his listed email address bounces w/ 550 error. Does anyone know how to reach him, or whether he's actively maintaining rtiff? If anyone's interested, my primary desire is for rtiff (or other tool) to provide me with the raw range of pixel values in a tiff file. rtiff dumps straight into a pixmap object, so the

...om: cgw at witthoft.com To: ripley at stats.ox.ac.uk Cc: r-help at r-project.org, carl at witthoft.com Subject: Re: [R] ISO Eric Kort (rtiff) Message-ID: <1684018604.50808.1272989491608.JavaMail.mail at webmail01> Content-Type: text/plain; charset=UTF-8 Thanks, Brian. I can see where to mod readTiff to return the original data ranges; and where to mod writeTiff so it writes files with something better than the current 0:255 resolution range. I have found an additional problem with readTiff, so is there someone I can write to about it? What I found was, for some tiff images created within my...