hfy100 wrote:
powerslide wrote:
你照片紀錄資訊的不是...(恕刪)
難道大師認為DMAX100=DMAX90 ???
先生 你是不是把階調跟DR搞混啦?
"Dynamic Range and Bit-Depth
Converting a high-quality scan into an 8-bit linear (gamma=1.0) space value would truncatethe dynamic range, since it is physically impossible to store more than DMax 2.4 in an 8-bit integer. However after using gamma encoding it is theoretically possible to store a dynamic range of (log(255^2.2))=5.30. In reality the "sparse" data in the lower extreme of
any 8-bit non-linear (gamma encoded) space considerably limits it's useful range.
用講的實在太容易了
