This code is to convert raw data buffer acquired from Flir camera to a TIFF image, using libtiff

convert_to_tiff.cpp

#include <iostream>

#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <tiffio.h>

int main(int argc, char** argv)
{
    if(argc < 2)
    {
        std::cout << argv[0] << " <INPUT_FILE>" << std::endl;
        return 1;
    }
    std::string filepath(argv[1]);
    FILE* file = fopen(filepath.c_str(), "rb");
    fseek(file, 0, SEEK_END);
    long fsize = ftell(file);
    fseek(file, 0, SEEK_SET);

    uint8_t* buffer = (uint8_t*)malloc(fsize);
    fread(buffer, fsize, 1, file);
    fclose(file);

    int imgWidth = 640;
    int imgHeight = 512;

    std::string outputFile = filepath + std::string(".tiff");
    TIFF* tiff = TIFFOpen(outputFile.c_str(), "w");

    TIFFSetField(tiff, TIFFTAG_IMAGEWIDTH, imgWidth);
    TIFFSetField(tiff, TIFFTAG_IMAGELENGTH, imgHeight);
    TIFFSetField(tiff, TIFFTAG_SAMPLESPERPIXEL, 1);
    TIFFSetField(tiff, TIFFTAG_BITSPERSAMPLE, 16);

    for(int i = 0; i < imgHeight; i++)
    {
        TIFFWriteScanline(tiff, &buffer[i*imgWidth*2], i);
    }

    TIFFClose(tiff);

    return 0;
}