1. A method (30) of modeling of dose reduction in obtaining X-ray image, said method comprising the steps of: providing (32) a first radiographic information containing the first noise, and wherein the first radiographic information is collected to the first dose setting parameter provide (34) second parameter dose setting, determining (36a) for obtaining the difference noise modeled second radiographic information collected to the second dose setting parameter ivvodyat (38) the difference in noise in the first radiographic information for simulated second radiographic information containing the second noise, noise and the difference of at least partially dependent upon the at least one first radiographic izraspredeleniya intensity information ilokalnogo intensity distribution of the first CXR informatsii.2. A method according to claim 1, wherein the difference between the noise at least partially dependent upon the at least one first izokraski noise, power spectral density of the first sound noise color difference noise density ispektralnoy shumov.3 power difference. A method according to claim 1, wherein the difference of the noise is the noise of the local difference, depending on the local distribution of intensity of the first radiographic informatsii.4. A method according to any one of claims 1-3, wherein the first information includes Radiographic first signal to noise ratio wherein said method further comprises the steps of: determining (36b) second ratio of signal to noise ratio of the second dose setting parameter, determining (36c) for obtaining the difference of the noise1. Способ (30) моделирования снижения дозы при получении рентгеновского изображения, при этом упомянутый способ содержит следующие этапы:обеспечивают (32) первую рентгенографическую информацию, содержащую первый шум, при этом первая рентгенографическая информация собрана с первым параметром настройки дозыобеспечивают (34) второй параметр настройки дозыопределяют (36а) разность шумов для