File Formats: Canon RAW Format (CRW)

✅ IMPORTANT

Win32 support only

Not supported for x64

The Canon Raw file format is a raster file format created by Canon digital cameras. It is a raw dump of CCD pixels with no compression. This format is supported by POLYVIEW.

Using the Canon Digital Camera SDK (CD-SDK), LEADTOOLS can read and view CRW files generated by the following digital cameras:

Power Shot IXY DIGITAL DIGITAL IXUS EOS
Power Shot A10
Power Shot A20
Power Shot A30
Power Shot A40
Power Shot A100
Power Shot S10
Power Shot S20
Power Shot S30
Power Shot S40
Power Shot S100
Power Shot S110
Power Shot S200
Power Shot S300
Power Shot S330
Power Shot G1
Power Shot G2
Power Shot Pro90 IS
IXY DIGITAL
IXY DIGITAL 200
IXY DIGITAL 200a
IXY DIGITAL 300
IXY DIGITAL 300a
DIGITAL IXUS
DIGITAL IXUS v
DIGITAL IXUS v2
DIGITAL IXUS 300
DIGITAL IXUS 300
EOS D30
EOS D60
EOS-1D

The default extension used by this format is: CRW.

File constants associated with this file format are:

Constant Read Support Write Support Description
Crw 24 BPP None Cannon raw format.

Required DLL: Leadtools.Codecs.Crw.Dll. For a listing of the exact DLLs needed, based on the toolkit version, refer to Files To Be Included With Your Application.

Related Formats: DCR - Kodak Professional Digital Camera Format, DCS - Kodak Professional Digital Camera System Format, EXIF - Exif Formats, KDC - Kodak Digital Camera Format, PCD - Kodak Format.

Canon Runtime Files Required for CRW Support (Win32 Support Only)

Canon, Inc. publishes these DLLs. To obtain a license to distribute these files, contact Canon and license the free Canon Digital Camera Software Developer Kit.

These files are included for demonstration and testing purposes. You must obtain a license from Canon prior to distributing these files.

Canon, Inc. suggests that the user of their CRW SDK MUST place the required DLLs/Libraries in the working folder of the EXE application that is using it, and not in the SYSTEM folder. LEADTOOLS tested this in the system folder and it worked fine. But to follow Canon's instructions, we recommend the users of CANON DLLs/Libraries to place them in the working folder of his/her application to avoid any problems/conflicts, which may result from ignoring this recommendation.

Platform Support

Extension Module Value Win32 Win64 Net32 Net64 Linux Android Apple UWP MimeType Friendly Name
Crw CRW 296 image/x-crw AFP Format - with IOCA MMR Compression

For a complete list for supported file formats, see Summary of All Supported File Formats.

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