Check headers of list of antsImages — checkImageList • LESYMAP

Function to check that all antsImages in a list have the same orientation, origin, and resolution. The function stops with an error if one of the images has unusual headers. This behavior can be overcome by setting showError=F, and using the returned status (True=pass, False=fail) to make decisions outside this function.

checkImageList(imgList, showError = T, binaryCheck = F)

Arguments

imgList	list of antsImages
showError	boolean indicating whether to show the exact error and interrupt the function (TRUE, default), or don't show the error and return the check status (FALSE). The returned values when showError=F are T=passed or F=Failed.
binaryCheck	boolean, check if images are binary (0/1 values). Useful when checking masks or lesions. This check slows the output of the function.

Value

True if list has images with same headers, otherwise False.

Examples

if (FALSE) {
files = Sys.glob('/data/jag/nifti/*.nii.gz')
myimagelist = imageFileNames2ImageList(files)
checkImageList(myimagelist) # no value returned
checkImageList(lesions, showError=F) # True returned
myimagelist[[4]] = cropIndices(myimagelist[[4]], c(1,1,1), c(20,20,20))
checkImageList(myimagelist) # error on image 4
}