How to open a .raw file in MATLAB

I'm using a hyperspectral analyzer to analyse something, and I got four files from it. They are .bmp, .dci, .hdr and .raw, .bmp is the picture obviously. Now I have no idea how to use MATLAB to open the .raw file. So I really need some help, I have been thinking it for weeks.

Here are some information from the .dci and .hdr :

Camera=DUALIX SENSOR; Red=81; Green=51; Blue=32; ExposureTime=5.000000; Gain=2.000000; ObjectDistance=-232.811111; samples=800; lines=1380; bands=150; file type= ENVI Standard; data type=12; wavelength units= nm; binning={2,8}; wavelength={.......}

Answer 1

[Prakhar Jain]

Hi Chuqi,

Please follow the below links for your reference:

1) https://www.mathworks.com/matlabcentral/answers/314719-how-to-open-raw-files-in-matlab

2) https://www.mathworks.com/matlabcentral/answers/72525-how-to-open-raw-files-in-matlab

Thanks

Answer 2

[Duncan Carlsmith]

Some references applicable to "rgb" "raw" and dng are

https://blogs.mathworks.com/steve/2011/03/08/tips-for-reading-a-camera-raw-file-into-matlab/

https://www.linkedin.com/pulse/developing-iphone-raw-images-using-matlab-knut-inge-hvidsten/

https://www.rcsumner.net/raw_guide/RAWguide.pdf

https://www.mathworks.com/matlabcentral/answers/81448-loading-in-raw-image-data-using-the-tiff-class-images-return-as-all-zeros-multiple-warnings

https://helpx.adobe.com/camera-raw/digital-negative.html#dng_sdk_download

https://www.mathworks.com/matlabcentral/fileexchange/71420-dng-to-rgb-converter

To read a "raw," you will need to know about format. imfinfo may help unpack that. I rather learned that the hard way discovering APPLE's ProRAW is not "raw" at all. Instead the DNG produced is compressed dng. Adobe's converter uncompresses to dng and this is not raw. Instead it contains a linearized processed (demosaiced) 3d array along with a linearization curve in the first SubIFD along with various previews in ohter SubIFDs. See https://kirkville.com/apples-new-proraw-photo-format-is-neither-pro-nor-raw/