A image to .mif file converter for use in Altera Quartus FPGA development.
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Image to .mif file converter for use in Altera Quartus FPGA development.

Converts images to Altera Memory Initialization File (.mif) format.

How to use:
Pass the image, width in bits of the memory, the depth of the memory, how many bits per pixel for the memory, and color format. Color format is either 0 for Grayscale or 1 for RGB. RGB color will set the RGB elements of a pixel as consecutive memory locations.

    img2mif -width -depth -bpp -color

    width : Width of memory in bits. Only support for 8, 16, 32, 64, 128 at the moment.
    depth : Depth of the memory structure. Only valid choices are 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768, 65536, 131072, 262144, 524288.
    bpp : Bits per pixel of the output. Uses basic thresholding to truncate image data.
    color: Set to 0 for auto RGB output. Set to 1 for grayscale.

    EX : img2mif tester.bmp 8 8192 2 1

If the image is too large for the memory it will fill up as much of the memory as possible then give a warning. If the image does not take up all the space the other locations will be filled with 0.

So far RGB is currently not implemented and a couple sections are untested but should work. Seems bitmaps are the best choice as file inputs. Uses the stb image library for opening up images and getting the pixel data. Included is a copy of stb_image.h that I used for building.

Memory Initialization Format (.mif) file documentation can be found here.

Author: Parker Dillmann
Website: Longhorn Engineer