image resampling to higher resolution

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Maura Monville
Maura Monville 2016-9-12
I have to compare the dose2water stored in two matrices (attached in MatLab format). The scoring component is a cylindrical water phantom. The dose is binned in pixels defined through dividing the cylinder radius and height.
" PBDosePre.mat" size is 400x224 R bins not uniform step, 224 bins, attached "Rtick.mat" Z bins uniform step = 0.25 cm, 400 bins, attached "Ztick.mat"
" PBDoseCur.mat" size is 800x400 R bins uniform step = 0.1 cm, 400 bins Z bins uniform step = 0.1 cm, 800 bins
In order to compare the two matrices I have to resample "PBDosePre.mat" to get values on a 800x400 grid conserving the total dose. How can I do that ?
Both matrices will br log10 converted to avoid deling with very small numbers. Maybe they have to be normalized to their respective total dose before comparison ?
Thank you so much. Best regards Maura email: maura.monville@gmail.com

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