Full Name	Canon CRW Format
Format ID	ImGearFormats.CRW
File Extension(s)	*.crw
Data Type	Bitmap
Data Encoding	Binary
Multi-Page Support	No
Alpha Channel Support	No
ImageGear Platforms Support	WIN32, WIN64, Unix, Unix64, MAC, .NET, .NET64

ImageGear Supported Versions

N/A

ImageGear Supported Features

• IGFilterFormatFlags.DETECTSUPPORT - autodetection
• IGFilterFormatFlags.PAGEREADSUPPORT - single page file reading

ImageGear Read Support

• Proprietary Canon compression:
  • Without color reconstruction: Grayscale - 10..16 bpp;
  • With color reconstruction: RGB - 48 bpp.

ImageGear Write Support

No

ImageGear Filter Control Parameters

See DCRAW Filter Control Parameters.

Comments

This is one of the two main formats that Canon digital cameras use to store Raw images.

By default, ImageGear automatically reconstructs colors in raw images during loading. You can disable one or more stages in the automatic color reconstruction, and reconstruct the images programmatically by using ImageGear Processing API. Use filter control parameters to disable specific stages of color reconstruction.

Canon CRW format uses CIFF file structure as the base. CIFF file format is similar to TIFF in many aspects, but is not compatible with it. Raw data is encoded using Canon proprietary compression.