How can I convert a .jpg or .png image to .raw format?

Is there any software that converts JPEG or PNG to RAW?

I have been looking around and I've only found applications that do the reverse.

3 Answers

I just find out here how to do that with Gimp !

Works almoust perfectly ! :P

Update

Used method:

1. Export the file on Gimp: Ctrl Shift E

2. On the export window, choose Raw Image Data on Select File Type

   1. Click on Export button
3. On the raw image export window, Choose Planar for the RGB Save Type
   1. Click on Export button
4. Open the folder where the file was saved and rename his extension from .data to .raw
5. On Unity3d, chose Bit 8 for Depth on the Import Heightmap window

Unfortunately, the generated image by Gimp isn't that good... So, I'm still would appreciate some help.

Ubuntu by default has Imagemagick installed and provides the convert command line tool to convert to various image formats. You can simply do:

convert xyx.jpg xyz.RAW

Answer above may work for old versions of ImageMagick, but this worked for me:

convert lena512.bmp gray:lena512.raw

and vice versa

convert -size 512x512 -depth 8 gray:lena512.raw lena512.png

For many images this works (I haven't found solution for mogrify):

parallel -j 4 convert {} gray:{}.raw ::: slice-*.png

-j is number of processes, {} gets replaced by the filename matching the mask specified after ::: so output files are named as slice-0000.png.raw