Coagula is an image synthesizer; it is both an image editor and a sound generator from an image. It can generate rich and complex sounds. It has all the useful tools to draw and to create images. It includes lots of specific tools that cannot be found in other image editor.
However, it lacks lots of stuff that should be included in any image editor. In fact, it shows that it is really meant for a special thing between the world of music and image. Here, the colour intensity and contrast is used to indicate sound amplification. There are many ways to handle the software and time is needed to master it.