### Authors

Reto Stauffer, Claus O. Wilke, Achim Zeileis

## Graphical User Interface to Check Images for Color Constraints

### Description

A graphical user interface (GUI) to check an existing jpg/png image for (possible) color constraints. The image will be converted to protanope vision, deuteranope vision, and a desaturated version (monochromatic vision). Allows a rapid check whether the colors used in the image show some constraints with respect to color deficiency or color blindness.

## Convert Colors of an Image

### Description

Used in `cvd_emulator`. Takes an image object and converts the colors using `deutan`, `protan`, `tritan`, `desaturate` functions. The image will be written to disc as a PNG file.