Dcraw Source Code Analysis

Dcraw Source Code Analysis

Author:maddock

Date:2015-04-22

Reprint please specify the source:

First spit The groove a bit: The program uses a considerable number of global variables, look at the big head. Disadvantages of global variables see

Http://wenku.baidu.com/link?url= 7trgbb6ar2mmpcgjd8cgvhinuzfdd0klmixsybt7w-ooepyx5hboy2eb7gxtmxgz-6mippv2kxtlwm3x3ec8k9-4oxmubqe3kucfrsb9u1u

But have to admit, Dcraw author's program control level is too strong, version maintenance for many years, so many global variables retractable freely, this source has been a lot of raw,dng codec software adopted.

Code Source: http://www.cybercom.net/~dcoffin/dcraw/

Code Debug Compilation Environment:

Cygwin + GCC

DCRAW.C--Decodes raw photos, extracts thumbnails, and displays metadata
Compile with

"gcc-o Dcraw-o4 dcraw.c-lm-ljasper-ljpeg-llcms2" or

"gcc-o Dcraw-o4 dcraw.c-lm-dnodeps".

Related knowledge Supplement:

1 TIFF file format

Document download

http://download.csdn.net/detail/Doeld/1453443

Partially translated documents

Http://wenku.baidu.com/link?url= Aq7i5r9xakpw6ctv3mpvyjdmhidz-hxsdhnktqir2qbz66fkgtzca--xfuyq1akodgyuqp-pkiuthqlwr-8j5bouhqkekdgfpqsizqxshj7

2 DNG RAW Format cognition

Refer to my other post. dng format parsing

Dcraw Source-Structure

Dcraw source-Get RAW image information

Dcraw source-raw image interpolation, color adjustment

Dcraw Source-Format conversion

Dcraw Source Code Analysis