Performs cropping and/or simple color adjustments on an HDR input file, in EXR format, and saves the result to a new HDR file, also in EXR format. For each of the three color channels (red, green and blue) there are scale and gamma parameters. At each pixel, the value of each color channel is replaced by scale*(value^gamma). One can (very roughly) think of the scale parameter as controlling the strength of a color channel, and the gamma parameter its saturation, although adjusting the gamma parmeters of the different color channels independently often leads to unpredictable results. Usage: hdr_adjust.exe [OPTION...] -h, --help show help -i, --input=INPUT input file (EXR) -o, --output=OUTPUT output file (EXR) -r, --red_scale=FLOAT(=1) scale parameter for red channel -R, --red_gamma=FLOAT(=1) gamma parameter for red channel -g, --green_scale=FLOAT(=1) scale parameter for green channel -G, --green_gamma=FLOAT(=1) gamma parameter for green channel -b, --blue_scale=FLOAT(=1) scale parameter for blue channel -B, --blue_gamma=FLOAT(=1) gamma parameter for blue channel -c, --crop=WxH+X+Y cropping