Short:        Canon CR2 RAW DataType
Author:       Massimiliano Scarano mscarano@libero.it
Uploader:     Massimiliano Scarano mscarano libero it
Type:         util/dtype
Version:      39.4
Replaces:     CR2_DataType_V39_3.lha
Architecture: m68k-amigaos >= 3.0.0

=============
 Description
=============

Canon CR2 RAW DataType is a picture datatype for displaying "Canon CR2 RAW" images under AmigaOS 3.0 or higher.

Canon CR2 is a TIFF based file format used by many Canon digital cameras for RAW photos.
The file name extension is ".CR2".
It contains different versions of the same image (details from Canon EOS 400D):
1) JPEG Preview Image   1936 x 1288 x 24-bit
2) JPEG Thumbnail Image  160 x  120 x 24-bit
3) RGB Preview Image     384 x  256 x 24-bit
4) RAW Image            3888 x 2592 x 24-bit

Only images of type "3) RGB Preview Image" are supported in this version.
A new version supporting images of type "4) RAW Image" and an utility are being evaluated
and their future is depending on people feedback.

==============
 Requirements
==============

* AmigaOS 3.0 or higher running on Motorola 680x0 based computers,
  alternatively an Amiga emulation package is required
  (Cloanto Amiga Forever recommended)

* picture.datatype V43 (truecolor 24-bit images) or higher

==========
 Features
==========

* It supports
    * Little Endian (Intel) byte order CR2 files
    * 24-bit uncompressed interleaved RGB images
    * 48-bit uncompressed interleaved RGB images
      (48-bit 16:16:16 cut down to 24-bit 8:8:8)

* AmigaGuide documentation

* Source code supplied

* Some Amiga meta data used (Author, Copyright, Annotation, Version)

* Some dubugging output enabled and sent to serial port

* Successfully tested Canon cameras
    Camera             | RGB Preview Image
    ---------------------------------------
    "PowerShot G9"     | 500 x 375 x 48-bit
    "EOS-1Ds Mark II"  | 384 x 256 x 24-bit
    "EOS-1Ds Mark III" | 476 x 312 x 48-bit
    "EOS-1D Mark III"  | 486 x 324 x 48-bit
    "EOS 5D"           | 384 x 256 x 24-bit
    "EOS 20D"          | 384 x 256 x 24-bit
    "EOS 30D"          | 384 x 256 x 24-bit
    "EOS 40D"          | 486 x 324 x 48-bit
    "EOS 350D"         | 384 x 256 x 24-bit
    "EOS 400D"         | 384 x 256 x 24-bit
    "EOS 450D"         | 539 x 356 x 48-bit (New model from Canon)



Download RAW files from
  [ http://raw.fotosite.pl/ ]
  [ http://www.rawsamples.ch/ ]
  [ http://www.glasslantern.com/RAWpository/ ]

==================
 Releases history
==================

* Version 39.0 released 11-May-2008, first public release.

* Version 39.1 released 18-May-2008:
    * few minor improvements

* Version 39.2 released 24-May-2008:
    * few minor changes and improvements

* Version 39.3 released 31-May-2008:
    * few minor changes and improvements

* Version 39.4 released 07-Jun-2008:
    * a minor issue fixed:
      now the user is properly warned in case of invalid files
    * new AmigaGuide documentation icon (256 colours)
    * few minor changes and improvements

========
 Author
========

Massimiliano Scarano
E-mail: mscarano@libero.it
Web site: http://it.dada.net/freeweb/massimilianoscarano/