My question is about Sen2Cor output; After the atmospheric correction with Sen2Cor plugin, given that the values of pixels are big numbers (up to 20000), must be formulated to convert them to values from 0 to 1 (reflection)?
This value can be found in the product metadata (MTD_MSI_L1C.xml) as QUANTIFICATION_VALUE. The image data will normally have to be divided by 10000.
Thanks for your answer, but unfortunately I could not understand your point.
please have a look at this answer: Are S2 Level 2A products pixel values reflectance?