Everyone's favorite DS9/IRAF feature!

This feature would allow some way of defining the image scale according to IRAF's z-scale. This method requires some simple statistics and fitting and should return a minimum and maximum color.

Example Usage

using AstroImages
img = load("image.fits")
cmin, cmax = zscale(img, args...)

plot(img, cmin=cmin, cmax=cmax)

References

• DS9 source code
• A hard to parse written description
• astropy