IMAQ Vision supports the following standard image formats; BMP, TIFF, JPEG, PNG, and AIPD. Non-standard or other images can be read with IMAQ Vision and converted to the IMAQ image data type. In LabVIEW, the IMAQ ReadFile.vi has a set of options to be used for non-standard or other image types. Depending on how your .raw file is stored, you might have to do some other types manipulation before you will be able to read the file in. I would start with the option in the ReadFile command. Once the image has been successfully read into Vision, you can attach it to an IMAQ Viewer just like other images.
Hope this helps.
Jack Arnold
Application Engineer
National Instruments