I've been looking for a light-weight image viewer to replace gThumb now that I'm not running Gnome anymore, and found XLoadImage. How can I add support for Canon's raw CR2 format?
anna@anna:~ $ xloadimage IMG_0001.CR2 TIFFReadDirectory: Warning, Photometric tag is missing, assuming data is YCbCr. TIFFReadDirectory: Warning, SamplesPerPixel tag is missing, applying correct SamplesPerPixel value of 3. OJPEGSubsamplingCorrect: Warning, Subsampling tag is not set, yet subsampling inside JPEG data [2,1] does not match default values [2,2]; assuming subsampling inside JPEG data is correct. IMG_0001.CR2 is a 5184x3456 24-bit single-plane YCBCR TIFF image IMG_0001.CR2: YCBCR is an unsupported TIFF photometric style, sorry. IMG_0001.CR2: unknown or unsupported image type anna@anna:~ $
The only thing I've found so far is a plugin for GIMP, but GIMP is definitely not light-weight.