Am Samstag, 2. Januar 2021, 09:34:52 CET schrieb Sonali Warunjikar: > On Sat, Jan 02, 2021 at 01:32:32PM +0530, Sonali Warunjikar wrote: > > Have to also check whether the pypng package supports that field. > > [1] confirms the pixel size to be 19 micro. pypng does have a way to > supply it. Now it's reporting sensible distances, but have to check and > see if there are calibration issues. > > BTW any idea, what "True (measured) resolution = 16lp/mm" means in [1]? It > seems it's called line pairs per mm. Not sure how to correlate it with 19 > micro pixel size. > > [1] > https://pdf.indiamart.com/impdf/22884448473/MY-16502350/dental-rvg-systems-k > odak-5200.pdf
Maybe this is of any help : https://www.pco.de/fileadmin/user_upload/knowledge_base/ kb_about_resolution_V101.pdf[1] "The maximum spatial resolution is described as ability to separate patterns of black and white lines and it is given in line pairs per millimeter ([lp/mm]). As theoretical limit it is described in the literature and com-prehensive that the maximum resolution is achieved if one black line is imaged on one pixel while one white line is imaged to the neighbor pixel." -------- [1] https://www.pco.de/fileadmin/user_upload/knowledge_base/ kb_about_resolution_V101.pdf
