Specifications

CORE LOGIC Proprietary and Confidential
97
www.corelogic.co.kr │
DQT (0xffdb)
SOS (0xffda)
DRI (0xffdd)
RSTm (0xffd0 ~0xffd7)
APPm (0xffe0 ~ 0xffef)
COM (0xfffe)
In case of DHT or DQT, both the format in which the tables can be put together
and expressed in a single location of the header or the format in which it is
divided into several tables and expressed in different locations of the header are
supported. In case of COM, a specified length of the data that comes after the
marker is ignored. The same applies to APPm since its purposes differ depending
on the ways of JPEG encoding.
Start of Frame markers, non-differential, Huffman coding
Code assignment Symbol Description
X’FFC0’
X’FFC1’
X’FFC2’
X’FFC3’
SOF0
SOF1
SOF2
SOF3
Baseline DCT
Extended sequential DCT
Progressive DCT
Lossless (sequential)
Table 4-29. Start of Frame Markers, Non-differential, Huffman Coding
Start of Frame markers, differential, Huffman coding
Code assignment Symbol Description
X’FFC5’
X’FFC6’
X’FFC7’
SOF5
SOF6
SOF7
Differential sequential DCT
Differential progressive DCT
Differential lossless (sequential)
Table 4-30. Start of Frame Markers, Differential, Huffman Coding
Start of Frame markers, non-differential, arithmetic coding
Code assignment Symbol Description
X’FFC8’
X’FFC9’
X’FFCA’
X’FFCB’
JPG
SOF9
SOF10
SOF11
Reserved for JPEG extensions
Extended sequential DCT
Progressive DCT
Lossless (sequential)
Table 4-31. Start of Frame Markers, Non-differential, Arithmetic Coding